Kypros||Eliades Milidonis, Andreas
In: Materials Chemistry and Physics, vol. 315, 2024.
Abstract | Links | BibTeX | Tags:
@article{nokey,
title = {Fostering wider application of anti-soiling strategies in existing solar power plants: A comparative study of novel quaternarized silica hybrids with commercial self-cleaning coatings},
author = {Milidonis, Kypros||Eliades, Andreas},
doi = {10.1016/j.matchemphys.2024.129046},
year = {2024},
date = {2024-03-01},
urldate = {2024-03-01},
journal = {Materials Chemistry and Physics},
volume = {315},
abstract = {The global financial impact of soiling on solar power plants is enormous. Anti-soiling coatings offer a promising alternative to reduce labor expenses, minimize water usage, and deter soiling. However, most commercial coatings do not meet the requirements of contemporary solar power applications. This study presents a simple method for developing ambiently cured transparent hydrophobic anti-soiling coatings for PV modules and CSP mirrors based on quaternarized silica hybrids. The coatings were examined in terms of surface energy, microstructure, durability, transmittivity, and reflectance. The soiling rate during real-field exposure was also evaluated. It was found that the proposed coatings present a promising alternative to contemporary anti-soiling strategies by being able to be periodically rejuvenated during regular maintenance of solar power plants, thus ensuring sustained functionality over an extended period.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Constantinos||Karmellos Taliotis, Marios||Fylaktos
Enhancing decarbonization of power generation through electricity trade in the Eastern Mediterranean and Middle East Region Journal Article
In: Renewable and Sustainable Energy Transition, vol. 4, 2023.
@article{nokey,
title = {Enhancing decarbonization of power generation through electricity trade in the Eastern Mediterranean and Middle East Region},
author = {Taliotis, Constantinos||Karmellos, Marios||Fylaktos, Nestor||Zachariadis, Theodoros},
doi = {10.1016/j.rset.2023.100060},
year = {2023},
date = {2023-08-01},
journal = {Renewable and Sustainable Energy Transition},
volume = {4},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Despina||Taliotis Yiakoumi, Constantinos||Zachariadis
Sharing the decarbonisation effort: getting Eastern Mediterranean and Middle East countries on the road to global carbon neutrality Journal Article
In: Climate Policy, vol. 23, 2023.
@article{nokey,
title = {Sharing the decarbonisation effort: getting Eastern Mediterranean and Middle East countries on the road to global carbon neutrality},
author = {Yiakoumi, Despina||Taliotis, Constantinos||Zachariadis, Theodoros},
doi = {10.1080/14693062.2023.2216178},
year = {2023},
date = {2023-05-24},
journal = {Climate Policy},
volume = {23},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Kypros||Eliades Milidonis, Andreas||Grigoriev
Unmanned Aerial Vehicles (UAVs) in the planning, operation and maintenance of concentrating solar thermal systems: A review Journal Article
In: Solar Energy, 2023.
Abstract | Links | BibTeX | Tags:
@article{nokey,
title = {Unmanned Aerial Vehicles (UAVs) in the planning, operation and maintenance of concentrating solar thermal systems: A review},
author = {Milidonis, Kypros||Eliades, Andreas||Grigoriev, Victor||Blanco, Manuel Jesus},
doi = {10.1016/j.solener.2023.03.005},
year = {2023},
date = {2023-04-01},
urldate = {2023-04-01},
journal = {Solar Energy},
abstract = {The technological advancements achieved in the field of Unmanned Aerial Vehicles (UAVs) have positioned this technology as a key enabling technology for revolutionizing the entire energy industry by facilitating diverse operations and tasks that would otherwise be either impossible to carry out, costly, labour intensive, and, in some cases, dangerous. The plethora of UAV-based applications is enormous constituting a unique arsenal of capabilities, with the most dominant being the unparallelled access to remote long-range data collection, logging and transmission, and extended visual mapping. This paper provides a comprehensive review of integrating UAV-based applications and methods for the planning, operation and maintenance of Concentrating Solar Thermal (CST) power plants. This review is based not only on the peer-reviewed literature, but on the analysis of the relevant patent landscape. In addition to presenting the current state-of-the-art, it delves into the perspective of UAV integration into the CST sector for the foreseeable future. Lastly, based on the key findings of the review, other key enabling technologies that could be employed in UAV-based applications for unleashing further automation and opportunities in the CST sector are discussed.
},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Montenon, Alaric
Hierarchical control of Multi-Generation solar thermal power plant Journal Article
In: Applied Thermal Engineering, vol. 222, 2023.
@article{nokey,
title = {Hierarchical control of Multi-Generation solar thermal power plant},
author = {Montenon, Alaric},
doi = {10.1016/j.applthermaleng.2022.119942},
year = {2023},
date = {2023-03-05},
urldate = {2023-03-05},
journal = {Applied Thermal Engineering},
volume = {222},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Kyprianou, Ioanna; Artopoulos, George; Bonomolo, Anna; Brownlee, Timothy; Cachado, Rita Ávila; Camaioni, Chiara; Đokić, Vladan; D'Onofrio, Rosalba; Đukanović, Zoran; Fasola, Salvatore; Giovanni, Caterina Francesca Di; Grifoni, Roberta Cocci; Hadjinicolaou, Panos; Ilardo, Giacomo; Jovanović, Predrag; Grutta, Stefania La; Malizia, Velia; Marchesani, Graziano Enzo; Ottone, Maria Federica; Trusiani, Elio; Živković, Jelena; Carlucci, Salvatore
Mitigation and adaptation strategies to offset the impacts of climate change on urban health: A European perspective Journal Article
In: Building and Environment, vol. 238, pp. 110226, 2023, ISSN: 0360-1323.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{KYPRIANOU2023110226,
title = {Mitigation and adaptation strategies to offset the impacts of climate change on urban health: A European perspective},
author = {Ioanna Kyprianou and George Artopoulos and Anna Bonomolo and Timothy Brownlee and Rita Ávila Cachado and Chiara Camaioni and Vladan Đokić and Rosalba D'Onofrio and Zoran Đukanović and Salvatore Fasola and Caterina Francesca Di Giovanni and Roberta Cocci Grifoni and Panos Hadjinicolaou and Giacomo Ilardo and Predrag Jovanović and Stefania La Grutta and Velia Malizia and Graziano Enzo Marchesani and Maria Federica Ottone and Elio Trusiani and Jelena Živković and Salvatore Carlucci},
url = {https://www.sciencedirect.com/science/article/pii/S0360132323002536},
doi = {https://doi.org/10.1016/j.buildenv.2023.110226},
issn = {0360-1323},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Building and Environment},
volume = {238},
pages = {110226},
abstract = {Climate change threatens urban health, whether that refers to the human or environmental aspects of urban life. At the same time, initiatives of city regeneration envision alternative forms of the urban environment, where derelict spaces have the potential to be brought back to life in ways that would not compromise urban health. Regeneration processes should utilise mitigation and adaptation strategies that consider the future needs and anticipated role of cities within the context of the discourse about climate change, accounting for expected and unforeseen impacts and regarding the city as an agent of action rather than a static territory, too complex to change. Nevertheless, literature implicating these three parameters synchronously, namely, climate change, cities, and health, has been scarce. This study aims to fill this gap through a systematic literature review, exploring climate change adaptation and mitigation strategies that can be employed in urban regeneration efforts seeking to mitigate climate-exacerbated phenomena and their impacts on urban health as well as identifying the main trends and opportunities overlooked. Findings show that even though the emphasis is given to the physical actions and impacts of climate change and urban health, an emerging theme is a need to engage civic society in co-designing urban spaces. Synergistic relationships, collaborations and avoidance of lock-in situations appear to be the most significant subtopics emerging from this literature review. One main recommendation is the promotion of a community-driven, inclusive, participatory approach in regeneration projects. That will ensure that different vulnerabilities can be adequately addressed and that diverse population groups will have equitable health benefits.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Favero, Matteo; Luparelli, Antonio; Carlucci, Salvatore
Analysis of subjective thermal comfort data: A statistical point of view Journal Article
In: Energy and Buildings, vol. 281, pp. 112755, 2023, ISSN: 0378-7788.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{FAVERO2023112755,
title = {Analysis of subjective thermal comfort data: A statistical point of view},
author = {Matteo Favero and Antonio Luparelli and Salvatore Carlucci},
url = {https://www.sciencedirect.com/science/article/pii/S0378778822009264},
doi = {https://doi.org/10.1016/j.enbuild.2022.112755},
issn = {0378-7788},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Energy and Buildings},
volume = {281},
pages = {112755},
abstract = {Thermal comfort research aims to determine the relationship between the thermal environment and the human sense of warmth. This is usually achieved by measuring the subjective human thermal response to different thermal environments. However, it is common practice to use simple linear regression to analyse data collected using ordinal scales. This practice may lead to severe errors in inference. This study first set the methodological foundations to analyse subjective thermal comfort data from a statistical perspective. Subsequently, we show the practical consequences of fallacious assumptions by utilising a Bayesian approach and show, through an illustrative example, that a linear regression model applied to ordinal data suggests results different from those obtained using ordinal regression. Specifically, linear regression found no difference in means and effect size between genders, while the ordinal regression model led to the opposite conclusion. In addition, the linear regression model distorts the estimated regression coefficient for air temperature compared to the ordinal model. Finally, the ordinal model shows that the distance between adjacent response categories of the ASHRAE 7-point thermal sensation scale is not equidistant. Given the abovementioned issues, we advocate utilising ordinal models instead of metric models to analyse ordinal data.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Theodoros||Giannakis Zachariadis, Elias||Karmellos
Science policy frameworks for a post-pandemic green economic recovery Journal Article
In: Energy Strategy Reviews, vol. 45, 2023.
@article{nokey,
title = {Science policy frameworks for a post-pandemic green economic recovery},
author = {Zachariadis, Theodoros||Giannakis, Elias||Karmellos, Marios||Taliotis, Constantinos||Fylaktos, Nestor},
doi = {10.1016/j.esr.2022.101035},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Energy Strategy Reviews},
volume = {45},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Attia, Shady; Benzidane, Caroline; Rahif, Ramin; Amaripadath, Deepak; Hamdy, Mohamed; Holzer, Peter; Koch, Annekatrin; Maas, Anton; Moosberger, Sven; Petersen, Steffen; Mavrogianni, Anna; Hidalgo-Betanzos, Juan Maria; Almeida, Manuela; Akander, Jan; Bakhtiari, Hossein Khosravi; Kinnane, Olivier; Kosonen, Risto; Carlucci, Salvatore
Overheating calculation methods, criteria, and indicators in European regulation for residential buildings Journal Article
In: Energy and Buildings, vol. 292, pp. 113170, 2023, ISSN: 0378-7788.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{ATTIA2023113170,
title = {Overheating calculation methods, criteria, and indicators in European regulation for residential buildings},
author = {Shady Attia and Caroline Benzidane and Ramin Rahif and Deepak Amaripadath and Mohamed Hamdy and Peter Holzer and Annekatrin Koch and Anton Maas and Sven Moosberger and Steffen Petersen and Anna Mavrogianni and Juan Maria Hidalgo-Betanzos and Manuela Almeida and Jan Akander and Hossein Khosravi Bakhtiari and Olivier Kinnane and Risto Kosonen and Salvatore Carlucci},
url = {https://www.sciencedirect.com/science/article/pii/S0378778823004000},
doi = {https://doi.org/10.1016/j.enbuild.2023.113170},
issn = {0378-7788},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Energy and Buildings},
volume = {292},
pages = {113170},
abstract = {With the ongoing significance of overheating calculations in the residential building sector, building codes such as the European Energy Performance of Building Directive (EPBD) are essential for harmonizing the indicators and performance thresholds. This paper investigates Europe's overheating calculation methods, indicators, and thresholds and evaluates their ability to address climate change and heat events. e study aims to identify the suitability of existing overheating calculation methods and propose recommendations for the EPBD. The study results provide a cross-sectional overview of twenty-six European countries. The most influential overheating calculation criteria are listed the best approaches are ranked. The paper provides a thorough comparative assessment and recommendations to align current calculations with climate-sensitive metrics. The results suggesta framework and key performance indicators that are comfort-based, multi-zonal, and time-integrated to calculate overheating and modify the EU's next building energy efficiency regulations. The results can help policymakers and building professionals to develop the next overheating calculation framework and approach for the future development of climate-proof and resilient residential buildings.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Kyprianou, Ioanna; Serghides, Despina; Thomson, Harriet; Carlucci, Salvatore
Learning from the Past: The Impacts of Economic Crises on Energy Poverty Mortality and Rural Vulnerability Journal Article
In: Energies, vol. 16, no. 13, 2023, ISSN: 1996-1073.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{en16135217,
title = {Learning from the Past: The Impacts of Economic Crises on Energy Poverty Mortality and Rural Vulnerability},
author = {Ioanna Kyprianou and Despina Serghides and Harriet Thomson and Salvatore Carlucci},
url = {https://www.mdpi.com/1996-1073/16/13/5217},
doi = {10.3390/en16135217},
issn = {1996-1073},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Energies},
volume = {16},
number = {13},
abstract = {The summer-dominated Mediterranean island of Cyprus is often considered in the contexts of beach tourism, sunny weather, and different types of business economic activities and services. In terms of its climatic conditions, extreme heat and mild winters characterise the island; yet, recent evidence has shown that winter poses a significant threat to public health. Its excess winter mortality is amongst the highest in Europe and there is an increased risk of energy-poverty-related mortality compared to total mortality. This study is an extension of previous research, with the objective of further scrutinizing the shift observed between urban and rural energy poverty mortality in the time of a severe nationwide financial crisis. Mortality and temperature data for the period of 2008-2018, as well as macroeconomic indicators, were investigated through a linear regression analysis. The results indicated that the declining economic situation of the island severely hit rural areas, with a significant increase in energy-poverty-related mortality, while urban areas were more resilient to this. There are three existing challenges linked to energy poverty: low incomes, high energy prices, and poor building energy efficiency. In Cyprus, all three coincide and are aggravated in times of crisis, creating conditions of extreme vulnerability for populations already in a disadvantaged position. This study’s motivation was to highlight the intense vulnerability associated with crises in Cyprus, and its outcomes call for higher levels of support at such times, especially when it comes to rural populations.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Carlucci, Salvatore; Charalambous, Magdalene; Tzortzi, Julia Nerantzia
Monitoring and performance evaluation of a green wall in a semi-arid Mediterranean climate Journal Article
In: Journal of Building Engineering, vol. 77, pp. 107421, 2023, ISSN: 2352-7102.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{CARLUCCI2023107421,
title = {Monitoring and performance evaluation of a green wall in a semi-arid Mediterranean climate},
author = {Salvatore Carlucci and Magdalene Charalambous and Julia Nerantzia Tzortzi},
url = {https://www.sciencedirect.com/science/article/pii/S2352710223016017},
doi = {https://doi.org/10.1016/j.jobe.2023.107421},
issn = {2352-7102},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Journal of Building Engineering},
volume = {77},
pages = {107421},
abstract = {Green walls are gaining popularity as a sustainable cladding solution for buildings, offering various advantages for the built environment and human well-being. However, there is a lack of research on plant selection guides and field data in semi-arid Mediterranean climates, limiting our understanding of green wall potential. To address these gaps, this study assesses the hygrothermal and sound insulation performance of a modular living wall in a semi-arid Mediterranean climate and develops a plant-selection guideline for green wall applications. The experiment involves a comparative assessment between the modular living wall and a bare-wall-reference facade. Measurements of air temperature, relative humidity, and sound pressure were taken, along with thermal imaging, to record the surface temperatures of the experimental facades. Results reveal that the modular-living wall significantly decreased dry-bulb air temperature (up to 8 °C) and reduced sound pressure by up to 5.1 dB. Additionally, relative humidity in the air cavity behind the modular living wall consistently increased by 6.6%, with a maximum absolute humidity differential of 8.6 g/kg. Thermal imaging showed a surface temperature difference of up to 27 °C, with foliage having a higher leaf-area-index proving more efficient in reducing the surface temperature of the green wall. Overall, the modular living wall effectively protected building walls from high solar radiation and temperatures, resulting in reduced energy requirements for space cooling. However, proper irrigation and plant health maintenance are necessary. This study fills important research gaps, providing valuable insights into the potential benefits and performance of green walls in semi-arid Mediterranean climates.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Banihashemi, Farzan; Weber, Manuel; Dong, Bing; Carlucci, Salvatore; Reitberger, Roland; Lang, Werner
Window state or action modeling? An explainable AI approach in offices Journal Article
In: Energy and Buildings, vol. 298, pp. 113546, 2023, ISSN: 0378-7788.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{BANIHASHEMI2023113546,
title = {Window state or action modeling? An explainable AI approach in offices},
author = {Farzan Banihashemi and Manuel Weber and Bing Dong and Salvatore Carlucci and Roland Reitberger and Werner Lang},
url = {https://www.sciencedirect.com/science/article/pii/S0378778823007764},
doi = {https://doi.org/10.1016/j.enbuild.2023.113546},
issn = {0378-7788},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Energy and Buildings},
volume = {298},
pages = {113546},
abstract = {Window operation significantly impacts energy use and indoor environmental quality in buildings. Individuals behave differently, making it difficult for models trained on a specific dataset to encompass the entire spectrum of these actions. A generalizable model is essential to predict the behavior of diverse occupants in office spaces. To address this need, this paper presents a systematic approach that captures this diversity, thereby contributing to developing a model towards generalizability. The approach involves state and action modeling through a Random Forest algorithm on the ASHRAE Global Occupant Behavior Database. The data pre-processing, hyperparameter tuning, and evaluation are deeply described and applied to window action and state datasets. Our results demonstrated that including metadata in a state model and applying a G-Mean threshold moving technique can result in an F1-score of 0.74. This score slightly outperformed the state room-wise model, which was trained only on its own dataset and achieved an F1-score of 0.73. However, both models had similar accuracies of 77%. The action model did not fare as well as the state models, with an F1-score and accuracy score of just 0.42 and 49%, respectively. In contrast, the action model showed more explainable results for domain experts than state models.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Isaac, Shabtai; Meir, Isaac; Pignatta, Gloria
Net-Zero and Positive Energy Communities Book
Routledge, 2023, ISBN: 9781003267171.
Links | BibTeX | Tags: Sustainable Built Environment
@book{Isaac2023b,
title = {Net-Zero and Positive Energy Communities},
author = {Shabtai Isaac and Isaac Meir and Gloria Pignatta},
doi = {10.1201/9781003267171},
isbn = {9781003267171},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
publisher = {Routledge},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {book}
}
Milidonis, Kypros
SolarPACES Task III Project: Analyze Heliostat Field: Results of Methodologies Comparison, Gaps to be Filled and Next Steps to Further Improve the Solar Central Receiver Technology Conference
2023.
BibTeX | Tags:
@conference{nokey,
title = {SolarPACES Task III Project: Analyze Heliostat Field: Results of Methodologies Comparison, Gaps to be Filled and Next Steps to Further Improve the Solar Central Receiver Technology},
author = {Milidonis, Kypros
},
year = {2023},
date = {2023-10-01},
urldate = {2023-10-01},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Kypros||Eliades Milidonis, Andreas
Developing Self-Cleaning Mirrors with TiO2 Films for Concentrated Solar Thermal Power Technology Conference
2023.
BibTeX | Tags:
@conference{nokey,
title = {Developing Self-Cleaning Mirrors with TiO2 Films for Concentrated Solar Thermal Power Technology},
author = {Milidonis, Kypros||Eliades, Andreas},
year = {2023},
date = {2023-09-01},
urldate = {2023-09-01},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Kypros||Eliades Milidonis, Andreas
Revolutionizing Concentrated Solar Thermal Power Technology: Developing Self-Cleaning Mirrors with TiO2 Films Conference
2023.
BibTeX | Tags:
@conference{nokey,
title = {Revolutionizing Concentrated Solar Thermal Power Technology: Developing Self-Cleaning Mirrors with TiO2 Films},
author = {Milidonis, Kypros||Eliades, Andreas},
year = {2023},
date = {2023-05-01},
urldate = {2023-05-01},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Isaac, Shabtai; Meir, Isaac; Pignatta, Gloria
Net-Zero and Positive Energy Communities Book Chapter
In: Routledge, 2023, ISBN: 9781003267171.
Links | BibTeX | Tags: Sustainable Built Environment
@inbook{Isaac2023,
title = {Net-Zero and Positive Energy Communities},
author = {Shabtai Isaac and Isaac Meir and Gloria Pignatta},
url = {https://www.taylorfrancis.com/books/9781003267171},
doi = {10.1201/9781003267171},
isbn = {9781003267171},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
publisher = {Routledge},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {inbook}
}
Milidonis, Kypros
Adaptive optics heliostat facet local control mechanism Patent
2023.
BibTeX | Tags:
@patent{nokey,
title = {Adaptive optics heliostat facet local control mechanism},
author = {Milidonis, Kypros},
year = {2023},
date = {2023-03-21},
urldate = {2023-03-21},
keywords = {},
pubstate = {published},
tppubtype = {patent}
}
Aghaei, Mohammadreza; Moazami, Amin; Erba, Silvia; Hosseini, Mohammad; Avendano, Italo Aldo Campodonico; Shahid, Muhammad-Salman; Torrens-Galdiz, Ignacio; Mastandrea, Giuseppe; Solli, Runar; Riederer, Peter; Bevilacqua, Gloria; Javanroodi, Kavan; Papadopoulos, Panayiotis M.; Carlucci, Salvatore; Nik, Vahid M.
2023.
Links | BibTeX | Tags: Sustainable Built Environment
@proceedings{10182779,
title = {Collective Intelligence for Energy Flexibility – Collectief: An EU H2020 Project for Enhancing Energy Efficiency and Flexibility in Existing Buildings},
author = {Mohammadreza Aghaei and Amin Moazami and Silvia Erba and Mohammad Hosseini and Italo Aldo Campodonico Avendano and Muhammad-Salman Shahid and Ignacio Torrens-Galdiz and Giuseppe Mastandrea and Runar Solli and Peter Riederer and Gloria Bevilacqua and Kavan Javanroodi and Panayiotis M. Papadopoulos and Salvatore Carlucci and Vahid M. Nik},
doi = {10.1109/FES57669.2023.10182779},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
booktitle = {2023 International Conference on Future Energy Solutions (FES)},
pages = {1-6},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {proceedings}
}
Papadopoulos, Panayiotis M.; Kyprianou, Ioanna; Shahid, Muhammad-Salman; Erba, Silvia; Wurtz, Frédéric; Delinchant, Benoit; Riederer, Peter; Aghaei, Mohammadreza; Carlucci, Salvatore
Indoor thermal comfort analysis for developing energy-saving strategies in buildings Proceedings
2023.
Links | BibTeX | Tags: Sustainable Built Environment
@proceedings{10183297,
title = {Indoor thermal comfort analysis for developing energy-saving strategies in buildings},
author = {Panayiotis M. Papadopoulos and Ioanna Kyprianou and Muhammad-Salman Shahid and Silvia Erba and Frédéric Wurtz and Benoit Delinchant and Peter Riederer and Mohammadreza Aghaei and Salvatore Carlucci},
doi = {10.1109/FES57669.2023.10183297},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
booktitle = {2023 International Conference on Future Energy Solutions (FES)},
pages = {1-6},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {proceedings}
}
Yiakoumi, Despina
Evaluating capacity auction design for electricity: An experimental analysis Journal Article
In: Energy Economics, vol. 115, 2022.
@article{nokey,
title = {Evaluating capacity auction design for electricity: An experimental analysis},
author = {Yiakoumi, Despina
},
doi = {10.1016/j.eneco.2022.106370},
year = {2022},
date = {2022-11-01},
urldate = {2022-11-01},
journal = {Energy Economics},
volume = {115},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Victor||Milidonis Grigoriev, Kypros||Blanco
Heliostat fields with a balanced mirror density Journal Article
In: Solar Energy, vol. 243, 2022.
Abstract | Links | BibTeX | Tags:
@article{nokey,
title = {Heliostat fields with a balanced mirror density},
author = {Grigoriev, Victor||Milidonis, Kypros||Blanco, Manuel Jesus
},
doi = {10.1016/j.solener.2022.07.050},
year = {2022},
date = {2022-09-01},
urldate = {2022-09-01},
journal = {Solar Energy},
volume = {243},
abstract = {The efficiency of heliostat fields is analyzed in terms of mirror density. It is shown that it is possible to estimate the blocking and shadowing losses without ray tracing or polygon clipping. The calculations are based on general geometric properties and provide a kind of upper limit for heliostats with various mirror shapes and tracking systems. The use of mirror density allows to skip a multiparametric optimization of heliostat coordinates and to describe heliostat fields as if they had an ideal layout. The optimal distribution of mirror density is found by solving a variational problem, which assures that the transfer of heliostats from a region of low efficiency to a region of high efficiency does not change the overall efficiency of the field. The gains from the transfer are compensated exactly by the losses from the additional blocking and shadowing. It is shown how to design heliostat fields with a balanced mirror density, and the advantages of the balanced layout are compared with a more conventional nonblocking layout. The analysis also includes an economic model, which helps to estimate the price of solar heat and to distribute the investment costs properly between the heliostat field and other components of power plant.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Marakkos, Costas
Urban street canyon flows under combined wind forcing and thermal buoyancy Journal Article
In: Physics of Fluids, vol. 34, 2022.
Abstract | Links | BibTeX | Tags:
@article{nokey,
title = {Urban street canyon flows under combined wind forcing and thermal buoyancy},
author = {Marakkos, Costas
},
doi = {10.1063/5.0090642},
year = {2022},
date = {2022-07-18},
urldate = {2022-07-18},
journal = {Physics of Fluids},
volume = {34},
abstract = {In this work we investigate buoyancy-driven flows within urban street-canyon cavities of three aspect ratios under simultaneous inertial wind forcing. The main aim of this work is to enhance the understanding of induced urban airflow patterns under non-isothermal conditions, through experimental investigation which to date are relatively scarce. The experimental results can be used for corresponding Computational Fluid Dynamics (CFD) simulations. Scaled-down models of typical street-canyon cavity geometries were deployed inside a water channel where different ambient atmospheric conditions were simulated using dimensional analysis and similarity criteria. Three model street-canyon cavities were examined, with height-to-width(aspect) ratios of 2/3, 1 and 2. The thermal buoyancy forcing was applied by means of differential heating between the two canyon side walls, for a given background flow velocity well-above the canyon height. The non-dimensional parameter $B$ was used to quantify the competitive influence of the buoyancy versus the inertial forcing, integrating in as well as the geometrical aspect of the street canyon. The Particle Image Velocimetry (PIV) technique was used to acquire velocity vector fields across the middle vertical planar cross-section of the urban street canyon. The results showed that the canyon aspect ratio affects the resulting flow field, however a main vortex structure is present in all the visualized flow patterns with flow direction always being consistent with that of an uprising flow along the canyon heated wall.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Alaric||Montagnino Montenon, Fabio||Marakkos
Optical performance comparison of two receiver configurations for medium temperature Linear Fresnel Collectors Journal Article
In: Solar Energy, vol. 240, 2022, ISBN: 0038-092X.
Abstract | Links | BibTeX | Tags:
@article{nokey,
title = {Optical performance comparison of two receiver configurations for medium temperature Linear Fresnel Collectors},
author = {Montenon, Alaric||Montagnino, Fabio||Marakkos, Costas
},
doi = {10.1016/j.solener.2022.05.029},
isbn = {0038-092X},
year = {2022},
date = {2022-07-01},
urldate = {2022-07-01},
journal = {Solar Energy},
volume = {240},
abstract = {Linear Fresnel collectors are good candidates to lower the use of fossil fuels in the built environment and in the industry, due to their compact nature and adaptability. In addition, the technology shows large margins for improvement, in terms of efficiency capital and operational expenditures. The present study presents a new atmospheric double tube absorber, which fully explores non-imaging optics design. An existing LFR system with a second stage concentrator consisting of an evacuated tube with an associated secondary parabolic reflector, is compared with a novel model adopting the same LFR primary field but a new second stage concentrator, which achieves a much wider acceptance angle. It is shown that, beyond a better performance, the novel proposed solution provides simpler maintenance, as in cleaning and parts replacement, and a reduced cost, as it includes cheaper standard components. The study was conducted in ray-tracing environment with the Tonatiuh++ software, which is able to directly implement non-imaging optics configurations via analytic equations. The present study is centred on the optical performance of the collector. The quantitative comparison demonstrates that the annual yield of the novel model is increased at least by 8.3% while the cost per metre of the receiver is decreased by 45%.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Montenon, Alaric
Control Strategies Applied to a Heat Transfer Loop of a Linear Fresnel Collector Journal Article
In: Energies, vol. 9, 2022.
Abstract | Links | BibTeX | Tags:
@article{nokey,
title = {Control Strategies Applied to a Heat Transfer Loop of a Linear Fresnel Collector},
author = {Montenon, Alaric},
doi = {10.3390/en15093338},
year = {2022},
date = {2022-05-04},
urldate = {2022-05-04},
journal = {Energies},
volume = {9},
abstract = {The modelling of Linear Fresnel Collectors (LFCs) is crucial in order to predict accurate performance for annual yields and to define proper commands to design the suitable controller. The ISO 9806 modelling, applied to thermal collectors, presents some gaps especially with concentration collectors including LFCs notably due to the factorisation of the incidence angle modifiers and the fact that they are considered symmetric around the south meridian. The present work details the use of two alternative modellings methodologies based on recorded experimental data on the solar system installed at the Cyprus Institute, in the outskirts of Nicosia, Cyprus. The first modelling is the RealTrackEff, which is an improved ISO9806 modelling, and the second is constructed using the CARNOT blockset in MATLAB/Simulink. Both models include all the elements of the heat transfer fluid loop, i.e., mineral oil, with a tank and a heat-exchanger. First, the open loops studies demonstrated that the root mean square on temperature is 1 °C with the RealTrackEff; 2.9 °C with the CARNOT and 6.3 °C with the ISO9806 in comparison to the experimental data. Then, a PID control is applied on the experimental values in order to estimate the impact on the outlet temperature on the absorber and on power generation. Results showed that the error on the estimation of the heat absorbed reaches 32%.
},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Manuel Jesus||Grigoriev Blanco, Victor
Upper limits to the mean annual optical efficiency of solar mono-tower systems Journal Article
In: Solar Energy, vol. 236, 2022.
Abstract | Links | BibTeX | Tags:
@article{nokey,
title = {Upper limits to the mean annual optical efficiency of solar mono-tower systems},
author = {Blanco, Manuel Jesus||Grigoriev, Victor
},
doi = {10.1016/j.solener.2022.02.038},
year = {2022},
date = {2022-04-01},
urldate = {2022-04-01},
journal = {Solar Energy},
volume = {236},
abstract = {This study presents an analysis of the theoretical upper limits to the mean annual optical efficiency of the Light Collection and Concentration (LCC) subsystem of a solar tower system, which is the subsystem composed of the heliostat field and the active surfaces of the receiver that capture the concentrated solar radiation sent by the heliostat field to transform it into thermal energy. The “ideal†LCC subsystem is modelled gradually, by incrementally introducing into the model factors that limit the mean annual optical efficiency of any LCC subsystem and whose influence in the optical efficiency cannot be reduced to zero, starting with the cosine factor, followed by the atmospheric transmittance, and then by the product of the receiver intercept factor and a factor related to the shading of the heliostat field by the receiver. At each degree of complexity of the ideal LCC subsystem model, the optimal configuration of the “ideal†LCC subsystem that achieves the highest mean annual optical efficiency in terms of heliostat field shape and receiver size is identified for a selected range of latitudes, tower heights and heliostat field sizes or total mirror areas. Thus, the upper-limits of the mean annual optical efficiency of the LCC subsystem of solar towers are obtained as a function of the specified parameters. The results obtained show that at a latitude of 30° North, for tower heights between 200 and 300 meters and heliostat fields with mirror areas between 1.3 km2 and 2.5 km2, the upper limit of the mean annual optical efficiencies vary between 79.2% and 74.7%, with the highest upper limit corresponding to the combinations of the tallest towers and smallest heliostat fields. This strongly indicates that the mean annual optical efficiency of actual solar mono-tower systems of commercially realistic heliostat field sizes and tower heights will hardly reach 70% at any location on Earth.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Despina||Thravalou Serghides, Stavroula||Dimitriou
Energy performance of healthcare facilities in 3 climatic zones 3 in Cyprus Journal Article
In: Renewable Energy and Environmental Sustainability, vol. 7, 2022.
Abstract | Links | BibTeX | Tags:
@article{nokey,
title = {Energy performance of healthcare facilities in 3 climatic zones 3 in Cyprus},
author = {Serghides, Despina||Thravalou, Stavroula||Dimitriou, Stella||Kyprianou, Ioanna},
doi = {10.1051/rees/2022004},
year = {2022},
date = {2022-03-01},
urldate = {2022-03-01},
journal = {Renewable Energy and Environmental Sustainability},
volume = {7},
abstract = {Safeguarding affordable and energy-efficient medical services has emerged as a crucial necessity to sustain national healthcare systems, especially in view of the current pandemic. While a set of national standards and guidelines aim to set minimum energy requirements for the building facilities, more insight into the healthcare sector energy consumption in Cyprus is deemed necessary, since it is the 4th most energy-demanding sector per square meter in this country. This is the first extended research on energy consumption in healthcare facilities across the different climatic zones of Cyprus and the types of fuel favoured in each zone, which marks the novelty of this work. The findings of the study highlight that the coastal and inland climatic zones are the most energy-challenging regions, with more than 60% of the final energy needs covered by electricity. On the contrary, in the mountainous region, approximately 80% of the final energy needs are covered by oil and attributed mainly to heating purposes. The average national primary energy consumption of healthcare facilities was found to be 497 kWh/m2 in air-conditioned spaces. Therefore, this study highlights that the mean primary energy consumption per building surface is approximately 4 times higher than the national threshold for nZEBs; compelling critical consideration of intervention for their energy enhancement. Moreover, healthcare facilities in mountainous regions in Cyprus are heavily reliant on conventional fuel; an unreliable and highly polluting energy option. The work demonstrates the prominent challenge and high potential for energy retrofit of the examined facilities and their upgrading to nZEB-Hospitals, towards the endeavour to a climate-neutral energy transition.
},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Partasides, George
Simulation of an isolated system behavior at high RES penetration coupled with storage Journal Article
In: Discov Energy, vol. 2, 2022.
@article{nokey,
title = {Simulation of an isolated system behavior at high RES penetration coupled with storage},
author = {Partasides, George
},
doi = {10.1007/s43937-022-00006-w},
year = {2022},
date = {2022-02-18},
urldate = {2022-02-18},
journal = {Discov Energy},
volume = {2},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Vellei, Marika; Azar, Elie; Bandurski, Karol; Berger, Christiane; Carlucci, Salvatore; Dong, Bing; Favero, Matteo; Mahdavi, Ardeshir; Schweiker, Marcel
Documenting occupant models for building performance simulation: a state-of-the-art Journal Article
In: Journal of Building Performance Simulation, vol. 15, no. 5, pp. 634–655, 2022.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{doi:10.1080/19401493.2022.2061050,
title = {Documenting occupant models for building performance simulation: a state-of-the-art},
author = {Marika Vellei and Elie Azar and Karol Bandurski and Christiane Berger and Salvatore Carlucci and Bing Dong and Matteo Favero and Ardeshir Mahdavi and Marcel Schweiker},
url = {https://doi.org/10.1080/19401493.2022.2061050},
doi = {10.1080/19401493.2022.2061050},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
journal = {Journal of Building Performance Simulation},
volume = {15},
number = {5},
pages = {634--655},
publisher = {Taylor & Francis},
abstract = {The number of occupancy and occupant behaviour models developed for building performance simulation (BPS) has steadily increased for the past four decades. However, their use is still limited in practice. This is partly due to the difficulty in understanding their utility and to the challenges related to their implementation into BPS. Both problems can be attributed to the lack of a framework for their description and communication. In this paper, we fill this gap by introducing a framework to document occupant models, that represents the state-of-the-art of available information on the topic. The framework consists of four blocks (description, development, evaluation, and implementation) and can also be regarded as a guideline to help researchers communicate their models transparently. Based on a systematic review, we verify to which degree existing academic papers on occupant models meet the framework, thus providing a self-critical assessment of the state-of-the-art of occupant models' documentation.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Erdem, Cuce; Cuce, Pinar Mert; Carlucci, Salvatore; Sen, Harun; Sudhakar, Kumarasamy; Hasanuzzaman, Md.; Daneshazarian, Reza
Solar Chimney Power Plants: A Review of the Concepts, Designs and Performances Journal Article
In: Sustainability 14, no. 3: 1450, vol. 14, no. 3, pp. 1450, 2022, ISBN: 9046422375181.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Khambadkone2022,
title = {Solar Chimney Power Plants: A Review of the Concepts, Designs and Performances},
author = {Cuce Erdem and Pinar Mert Cuce and Salvatore Carlucci and Harun Sen and Kumarasamy Sudhakar and Md. Hasanuzzaman and Reza Daneshazarian},
url = {https://www.mdpi.com/2071-1050/14/3/1450/htm https://www.mdpi.com/2071-1050/14/3/1450},
doi = {10.3390/SU14031450},
isbn = {9046422375181},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
journal = {Sustainability 14, no. 3: 1450},
volume = {14},
number = {3},
pages = {1450},
publisher = {Multidisciplinary Digital Publishing Institute},
abstract = {This research presents a comprehensive review of solar chimney power plants (SCPP) as a reliable source of renewable electricity generation. Solar chimney power plants differ from other renewable energy technologies because thermal and momentum effects result in 24-h electricity generation. However, they are influenced by a wide range of design, geometrical and operational parameters, and environmental conditions. This review evaluates the design aspects and the theoretical, numerical, experimental, and performance findings in previous works holistically and concisely. The study also extensively discusses the various optimization strategies, advantages, disadvantages, and limitations of solar chimney power plants. Energy storage aspects and hybrid system designs are also addressed in the present review in order to overcome the known handicaps and limitations of solar chimney power plants. The performance figures of the technology are clearly demonstrated as a function of the design and operational conditions, and future prospects are discussed in detail. It is hoped that designers and policymakers will gain valuable insight into the technological features and advancements of solar chimney power plants, assisting them in making a better-informed decision.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Dong, Bing; Liu, Yapan; Mu, Wei; Jiang, Zixin; Pandey, Pratik; Hong, Tianzhen; Olesen, Bjarne; Lawrence, Thomas; O’Neil, Zheng; Andrews, Clinton; Azar, Elie; Bandurski, Karol; Bardhan, Ronita; Bavaresco, Mateus; Berger, Christiane; Burry, Jane; Carlucci, Salvatore; Chvatal, Karin; Simone, Marilena De; Erba, Silvia; Gao, Nan; Graham, Lindsay T; Grassi, Camila; Jain, Rishee; Kumar, Sanjay; Kjærgaard, Mikkel; Korsavi, Sepideh; Langevin, Jared; Li, Zhengrong; Lipczynska, Aleksandra; Mahdavi, Ardeshir; Malik, Jeetika; Marschall, Max; Nagy, Zoltan; Neves, Leticia; O’Brien, William; Pan, Song; Park, June Young; Pigliautile, Ilaria; Piselli, Cristina; Pisello, Anna Laura; Rafsanjani, Hamed Nabizadeh; Rupp, Ricardo Forgiarini; Salim, Flora; Schiavon, Stefano; Schwee, Jens; Sonta, Andrew; Touchie, Marianne; Wagner, Andreas; Walsh, Sinead; Wang, Zhe; Webber, David M; Yan, Da; Zangheri, Paolo; Zhang, Jingsi; Zhou, Xiang; Zhou, Xin
A Global Building Occupant Behavior Database Journal Article
In: Scientific Data, vol. 9, iss. 1, pp. 369, 2022, ISSN: 2052-4463.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Dong2022,
title = {A Global Building Occupant Behavior Database},
author = {Bing Dong and Yapan Liu and Wei Mu and Zixin Jiang and Pratik Pandey and Tianzhen Hong and Bjarne Olesen and Thomas Lawrence and Zheng O’Neil and Clinton Andrews and Elie Azar and Karol Bandurski and Ronita Bardhan and Mateus Bavaresco and Christiane Berger and Jane Burry and Salvatore Carlucci and Karin Chvatal and Marilena De Simone and Silvia Erba and Nan Gao and Lindsay T Graham and Camila Grassi and Rishee Jain and Sanjay Kumar and Mikkel Kjærgaard and Sepideh Korsavi and Jared Langevin and Zhengrong Li and Aleksandra Lipczynska and Ardeshir Mahdavi and Jeetika Malik and Max Marschall and Zoltan Nagy and Leticia Neves and William O’Brien and Song Pan and June Young Park and Ilaria Pigliautile and Cristina Piselli and Anna Laura Pisello and Hamed Nabizadeh Rafsanjani and Ricardo Forgiarini Rupp and Flora Salim and Stefano Schiavon and Jens Schwee and Andrew Sonta and Marianne Touchie and Andreas Wagner and Sinead Walsh and Zhe Wang and David M Webber and Da Yan and Paolo Zangheri and Jingsi Zhang and Xiang Zhou and Xin Zhou},
url = {https://doi.org/10.1038/s41597-022-01475-3},
doi = {10.1038/s41597-022-01475-3},
issn = {2052-4463},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
journal = {Scientific Data},
volume = {9},
issue = {1},
pages = {369},
abstract = {This paper introduces a database of 34 field-measured building occupant behavior datasets collected from 15 countries and 39 institutions across 10 climatic zones covering various building types in both commercial and residential sectors. This is a comprehensive global database about building occupant behavior. The database includes occupancy patterns (i.e., presence and people count) and occupant behaviors (i.e., interactions with devices, equipment, and technical systems in buildings). Brick schema models were developed to represent sensor and room metadata information. The database is publicly available, and a website was created for the public to access, query, and download specific datasets or the whole database interactively. The database can help to advance the knowledge and understanding of realistic occupancy patterns and human-building interactions with building systems (e.g., light switching, set-point changes on thermostats, fans on/off, etc.) and envelopes (e.g., window opening/closing). With these more realistic inputs of occupants’ schedules and their interactions with buildings and systems, building designers, energy modelers, and consultants can improve the accuracy of building energy simulation and building load forecasting.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Chinazzo, Giorgia; Andersen, Rune Korsholm; Azar, Elie; Barthelmes, Verena M.; Becchio, Cristina; Belussi, Lorenzo; Berger, Christiane; Carlucci, Salvatore; Corgnati, Stefano Paolo; Crosby, Sarah; Danza, Ludovico; Castro, Luiza; Favero, Matteo; Gauthier, Stephanie; Hellwig, Runa T.; Jin, Quan; Kim, Joyce; Khanie, Mandana Sarey; Khovalyg, Dolaana; Lingua, Carola; Luna-Navarro, Alessandra; Mahdavi, Ardeshir; Miller, Clayton; Mino-Rodriguez, Isabel; Pigliautile, Ilaria; Pisello, Anna Laura; Rupp, Ricardo Forgiarini; Sadick, Abdul-Manan; Salamone, Francesco; Schweiker, Marcel; Syndicus, Marc; Spigliantini, Giorgia; Vasquez, Natalia Giraldo; Vakalis, Donna; Vellei, Marika; Wei, Shen
Quality criteria for multi-domain studies in the indoor environment: Critical review towards research guidelines and recommendations Journal Article
In: Building and Environment, vol. 226, pp. 109719, 2022, ISSN: 0360-1323.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{CHINAZZO2022109719,
title = {Quality criteria for multi-domain studies in the indoor environment: Critical review towards research guidelines and recommendations},
author = {Giorgia Chinazzo and Rune Korsholm Andersen and Elie Azar and Verena M. Barthelmes and Cristina Becchio and Lorenzo Belussi and Christiane Berger and Salvatore Carlucci and Stefano Paolo Corgnati and Sarah Crosby and Ludovico Danza and Luiza Castro and Matteo Favero and Stephanie Gauthier and Runa T. Hellwig and Quan Jin and Joyce Kim and Mandana Sarey Khanie and Dolaana Khovalyg and Carola Lingua and Alessandra Luna-Navarro and Ardeshir Mahdavi and Clayton Miller and Isabel Mino-Rodriguez and Ilaria Pigliautile and Anna Laura Pisello and Ricardo Forgiarini Rupp and Abdul-Manan Sadick and Francesco Salamone and Marcel Schweiker and Marc Syndicus and Giorgia Spigliantini and Natalia Giraldo Vasquez and Donna Vakalis and Marika Vellei and Shen Wei},
url = {https://www.sciencedirect.com/science/article/pii/S0360132322009490},
doi = {https://doi.org/10.1016/j.buildenv.2022.109719},
issn = {0360-1323},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
journal = {Building and Environment},
volume = {226},
pages = {109719},
abstract = {The perception, physiology, behavior, and performance of building occupants are influenced by multi-domain exposures: the simultaneous presence of multiple environmental stimuli, i.e., visual, thermal, acoustic, and air quality. Despite being extensive, the literature on multi-domain exposures presents heterogeneous methodological approaches and inconsistent study reporting, which hinder direct comparison between studies and meta-analyses. Therefore, in addition to carrying out more multi-domain studies, such investigations need to be designed, conducted, and documented in a systematic and transparent way. With the goal to facilitate and support future multi-domain studies and their meta-analyses, this work provides (1) a range of criteria for multi-domain study design and reporting (i.e., defined as quality criteria), and (2) a critical review of the multi-domain literature based on the described criteria, which can serve as guidelines and recommendations for future studies on the topic. The identified quality criteria encompass study set-up, study deployment and analysis, and study outcome, stressing the importance of adopting a consistent terminology and result reporting style. The developed critical review highlights several shortcomings in the design, deployment, and documentation of multi-domain studies, emphasizing the need for quality improvements of future multi-domain research. The ultimate goal of this work is to consolidate our knowledge on multi-domain exposures for its integration into regulatory resources and guidelines, which are currently dominated by single-domain knowledge.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Favero, Matteo; Møller, Jan Kloppenborg; Calì, Davide; Carlucci, Salvatore
Human-in-the-loop methods for occupant-centric building design and operation Journal Article
In: Applied Energy, vol. 325, pp. 119803, 2022, ISSN: 0306-2619.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{FAVERO2022119803,
title = {Human-in-the-loop methods for occupant-centric building design and operation},
author = {Matteo Favero and Jan Kloppenborg Møller and Davide Calì and Salvatore Carlucci},
url = {https://www.sciencedirect.com/science/article/pii/S0306261922010790},
doi = {https://doi.org/10.1016/j.apenergy.2022.119803},
issn = {0306-2619},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
journal = {Applied Energy},
volume = {325},
pages = {119803},
abstract = {A comfortable indoor environment should be one of the main services buildings provide. However, technical building systems are typically designed and operated according to fixed set-point temperatures determined by the ‘one-size-fits-all’ principle assuming universal thermal comfort requirements, which has been questioned in the last fifty years. Designing and implementing comfortable set-point modulations that consider occupant feedback would be beneficial in terms of increasing comfort, potentially reduce energy consumption and significantly support the clean energy transition. An exploratory study aimed at predicting the thermal preferences of human subjects exposed to a dynamic thermal environment is presented. Using data acquired from a laboratory experiment where subjects were exposed to precisely controlled thermal ramps in an ‘office-like’ climatic chamber, cluster-specific and population-averaged methods are designed to handle the group-level residual during the prediction of the thermal preference votes. The results show that both approaches are valid strategies for modelling thermal preference votes and are effective in supporting a concrete occupant-centric building design and the building’s operation. Furthermore, the population-averaged approach is suitable for the occupant-centric building design phase, where the target is an ‘average’ occupant. The cluster-specific method is best suited to meet the needs of a specific occupant and is suitable for implementation in the operational phase of the building.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Dong, Bing; Markovic, Romana; Carlucci, Salvatore; Liu, Yapan; Wagner, Andreas; Liguori, Antonio; Treeck, Christoph; Oleynikov, Dmitry; Azar, Elie; Fajilla, Gianmarco; Drgoňa, Ján; Kim, Joyce; Vellei, Marika; Simone, Marilena De; Shamsaiee, Masood; Bavaresco, Mateus; Favero, Matteo; Kjaergaard, Mikkel; Osman, Mohamed; Frahm, Moritz; Dabirian, Sanam; Yan, Da; Kang, Xuyuan
A guideline to document occupant behavior models for advanced building controls Journal Article
In: Building and Environment, vol. 219, pp. 109195, 2022, ISSN: 0360-1323.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{DONG2022109195b,
title = {A guideline to document occupant behavior models for advanced building controls},
author = {Bing Dong and Romana Markovic and Salvatore Carlucci and Yapan Liu and Andreas Wagner and Antonio Liguori and Christoph Treeck and Dmitry Oleynikov and Elie Azar and Gianmarco Fajilla and Ján Drgoňa and Joyce Kim and Marika Vellei and Marilena De Simone and Masood Shamsaiee and Mateus Bavaresco and Matteo Favero and Mikkel Kjaergaard and Mohamed Osman and Moritz Frahm and Sanam Dabirian and Da Yan and Xuyuan Kang},
url = {https://www.sciencedirect.com/science/article/pii/S0360132322004310},
doi = {https://doi.org/10.1016/j.buildenv.2022.109195},
issn = {0360-1323},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
journal = {Building and Environment},
volume = {219},
pages = {109195},
abstract = {The availability of computational power, and a wealth of data from sensors have boosted the development of model-based predictive control for smart and effective control of advanced buildings in the last decade. More recently occupant-behavior models have been developed for including people in the building control loops. However, while important objectives of scientific research are reproducibility and replicability of results, not all information is available from published documents. Therefore, the aim of this paper is to propose a guideline for a thorough and standardized occupant-behavior model documentation. For that purpose, the literature screening for the existing occupant behavior models in building control was conducted, and the occupant behavior modeling processes were studied to extract practices and gaps for each of the following phases: problem statement, data collection, and preprocessing, model development, model evaluation, and model implementation. The literature screening pointed out that the current state-of-the-art on model documentation shows little unification, which poses a particular burden for the model application and replication in field studies. In addition to the standardized model documentation, this work presented a model-evaluation schema that enabled benchmarking of different models in field settings as well as the recommendations on how OB models are integrated with the building system.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Fiorito, Francesco; Vurro, Giandomenico; Carlucci, Francesco; Campagna, Ludovica Maria; Fino, Mariella De; Carlucci, Salvatore; Fatiguso, Fabio
Adaptation of Users to Future Climate Conditions in Naturally Ventilated Historic Buildings: Effects on Indoor Comfort Journal Article
In: Energies, vol. 15, no. 14, 2022, ISSN: 1996-1073.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{en15144984,
title = {Adaptation of Users to Future Climate Conditions in Naturally Ventilated Historic Buildings: Effects on Indoor Comfort},
author = {Francesco Fiorito and Giandomenico Vurro and Francesco Carlucci and Ludovica Maria Campagna and Mariella De Fino and Salvatore Carlucci and Fabio Fatiguso},
url = {https://www.mdpi.com/1996-1073/15/14/4984},
doi = {10.3390/en15144984},
issn = {1996-1073},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
journal = {Energies},
volume = {15},
number = {14},
abstract = {User behaviour can significantly affect indoor thermal comfort conditions, as well as energy consumption, especially in existing buildings with high thermal masses where natural cross ventilation is the main strategy to reduce cooling loads. The aims of this paper were: (i) to compare how behavioural changes evaluated by means of rule-based and stochastic models lead to changes in indoor thermal comfort levels, and (ii) to define the patterns of indoor thermal comfort in historic residential buildings in future scenarios. To this end, a historic building located in Molfetta (Southern Italy) was analysed using a dynamic energy simulation engine in five weather scenarios (Typical Meteorological Year, current extreme weather file 2018, predicted weather files for 2020, 2050, and 2080 generated by morphing method), and stochastic and rule-based models for window openings were adopted and compared. The results showed that the stochastic model was more accurate than the rule-based one, resulting in a reduction of discomfort conditions during the summer period between 30% and 50% in all climate scenarios. However, although the differences between predicted discomfort levels using rule-based and stochastic models tended to increase, discomfort levels still appeared to be not acceptable in the 2050 and 2080 scenarios due to the rising temperature driven by climate change.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Kyprianou, Ioanna; Carlucci, Salvatore; Serghides, Despina
Energy affordability and trends of mortality in Cyprus Journal Article
In: International Journal of Sustainable Energy, vol. 41, iss. 9, pp. 1303-1322, 2022.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Kyprianou2022c,
title = {Energy affordability and trends of mortality in Cyprus},
author = {Ioanna Kyprianou and Salvatore Carlucci and Despina Serghides},
url = {https://doi.org/10.1080/14786451.2022.2046581},
doi = {10.1080/14786451.2022.2046581},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
journal = {International Journal of Sustainable Energy},
volume = {41},
issue = {9},
pages = {1303-1322},
publisher = {Taylor & Francis},
abstract = {ABSTRACTEnergy affordability and climatic variability are associated to human health and this study investigates their impacts on public health for Cyprus, an eastern Mediterranean island afflicted by extreme summer heat and cold winters, especially in the Troodos mountains. Energy poverty indicators are computed through statistical analysis of mortality data and household consumption information, the latter collected through a tailored survey. Results show that almost half of the survey participants spend large proportions of their incomes towards essential energy services. Moreover, ambient temperature is significantly linked to mortality, with a 20-fold higher risk of death in winter and a major shift in mortality noticed around 2013, following a severe financial crisis which exposed rural populations to a higher mortality risk.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Kyprianou, Ioanna; Serghides, Despina; Carlucci, Salvatore
Urban vulnerability in the EMME region and sustainable development goals: A new conceptual framework Journal Article
In: Sustainable Cities and Society, vol. 80, pp. 103763, 2022, ISSN: 2210-6707.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{KYPRIANOU2022103763,
title = {Urban vulnerability in the EMME region and sustainable development goals: A new conceptual framework},
author = {Ioanna Kyprianou and Despina Serghides and Salvatore Carlucci},
url = {https://www.sciencedirect.com/science/article/pii/S2210670722000944},
doi = {https://doi.org/10.1016/j.scs.2022.103763},
issn = {2210-6707},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
journal = {Sustainable Cities and Society},
volume = {80},
pages = {103763},
abstract = {Crises have shocked the global population and forced entire nations to shift their operations and priorities. The adverse effects of these crises primarily impact cities and their inhabitants; nevertheless, inherently, they have the potential to overcome them. Urban centres are home to around half of the global population, and often they are correlated to high standards of life, mostly in the Western world. Nevertheless, cities are highly flawed and, at times, are coming up short when it comes to accommodating human needs. Thus, the motivation of this work is to investigate urban vulnerabilities linked to the broader topic of climate change, focusing on urban centres in the Eastern Mediterranean and the Middle East region. This study has a dual purpose: to introduce a content-based approach of analysis, akin to bibliometrics, using proxies and links to recreate a research landscape and investigate urban vulnerability under specific conditions and how it affects public health; ultimately, offering a tentative definition of it. The novelty of this study is the proxies and links approach, through which we have identified the major trends in urban vulnerability research, as well as possible under-explored themes, by interpreting qualitative findings into more tangible ones.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Victor||Milidonis Grigoriev, Kypros||Blanco
Polyharmonic splines for interpolation over sun path Bachelor Thesis
2022.
Abstract | Links | BibTeX | Tags:
@bachelorthesis{nokey,
title = {Polyharmonic splines for interpolation over sun path},
author = {Grigoriev, Victor||Milidonis, Kypros||Blanco, Manuel Jesus||Tsouloupas, George
},
doi = {10.1016/j.solener.2022.02.025},
year = {2022},
date = {2022-03-15},
urldate = {2022-03-15},
journal = {Solar Energy},
volume = {235},
abstract = {The optimization of solar tower power plants and other concentrating solar power (CSP) systems requires a customized approach for interpolation over the annual sun path. A good interpolation should predict accurately the efficiency of the system for different positions of the sun by using a small number of sampling points. This is very important to reduce the amount of simulations (e.g. ray tracing, cone optics, etc.), which are necessary to evaluate the annual performance for different CSP system configurations. From a mathematical point of view, the interpolation over sun path is an example of bivariate interpolation over a domain of irregular shape, and many methods are available to address it. In this paper, the advantages of meshless methods are investigated. The obtained results show that polyharmonic splines provide a good fit for the optical efficiency of the heliostat field of a solar tower system. The interpolated optical efficiency simplifies the calculation of annual energy reflected from the heliostat field to the receiver, and the result has an absolute error of 0.1% for less than 30 sampling points.},
keywords = {},
pubstate = {published},
tppubtype = {bachelorthesis}
}
Despina||Dimitriou Serghides, Stella
Zero Energy Hospitals in the Mediterranean and the Balkan Region Book
2022, ISBN: 978-9925-7759-2-7.
BibTeX | Tags:
@book{nokey,
title = {Zero Energy Hospitals in the Mediterranean and the Balkan Region},
author = {Serghides, Despina||Dimitriou, Stella
},
isbn = {978-9925-7759-2-7},
year = {2022},
date = {2022-02-23},
urldate = {2022-02-23},
keywords = {},
pubstate = {published},
tppubtype = {book}
}
Blanco, Manuel Jesus
Etendue-matched solar tower beam-down system for high-temperature industrial processes Conference
2022.
Abstract | Links | BibTeX | Tags:
@conference{nokey,
title = {Etendue-matched solar tower beam-down system for high-temperature industrial processes},
author = {Blanco, Manuel Jesus
},
doi = {10.1063/5.0085900},
year = {2022},
date = {2022-05-12},
urldate = {2022-05-12},
abstract = {The standard Concentrating Solar Thermal (CST) mono-tower technology, which uses one receiver placed on top of a tower to which all heliostats in the heliostat field aim to, is regarded as one of the best and most promising technologies for various CST-driven applications, namely CST power plants, solar metallurgical processes, thermochemical production of solar fuels and waste materials recycling. However, the technology has some technical challenges concerning optical performance/tolerances, system dimensions, operation and maintenance issues, etc. An alternative to this standard CST mono-tower technology is the so-called beam-down technology, where a special mirror is placed on the top of the tower, instead of a receiver, to redirect the incident radiation from the heliostat field onto a receiver/reactor placed closer to the ground and potentially delivering higher concentrations at the receiver than the standard CST mono-tower technology. This paper presents a new approach to improve the optics of beam-down systems, applies it to the optical design of a specific system, and shows the optical behavior of this design at two locations: Évora (Portugal) and Hurghada (Egypt). The approach uses etendue-matching between all the optical stages to minimize the optical losses between them. To analyze the optical behavior of the system designed, as an example, using the etendue-matching approach, raytracing simulations were carried out and are presented also in the paper.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Alaric||Papanicolas Montenon, Costas
2022.
Abstract | Links | BibTeX | Tags:
@conference{nokey,
title = {Comparison of advanced parameter identification methods for linear Fresnel collectors in application to measurement data},
author = {Montenon, Alaric||Papanicolas, Costas},
doi = {10.1063/5.0085892},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
abstract = {Modeling of the Linear Fresnel collectors in a real environment using standardized, state-of-the-art approaches is still inaccurate, yet it is crucial for robust loop control and collector yield assessment. Two advanced parameter identification methodologies – ParaID by Fraunhofer ISE and RealTrackEff by the Cyprus Institute – are compared in terms of the underlying equations, which extend ISO 9806. Both approaches are then applied to a Linear Fresnel collector research facility at the Cyprus Institute, for which a database of more than 50 measurement days is available, including reflectometric measurements. For both methods, several variations with increasing complexity are tested and the quality of the resulting fit in terms of outlet temperature is studied. Both methods take into account soiling/cleanliness and non- linear collector behavior. While ParaID focuses on the identification of the IAMs in a real environment, the method by the Cyprus Institute links the efficiency to non-linear tracking effects. Real collector characteristics like varying cleanliness and asymmetric collector behavior are found to have a strong impact on the collector performance and the identified parameters. For the ParaID approach, additional results regarding confidence intervals based on Bootstrapping and regarding identified Incidence Angle Modifiers are presented.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Dimoudi, A.; Kantzioura, A.; Toumpoulides, P.; Zoras, St; Serghides, Despina; Dimitriou, Stella; Thravalou, Stavroula; Metaj, M.; Mara, E.; Dorri, A.
The Energy Performance of Hospital Buildings in the South Balkan Region: The Prospects for Zero-Energy Hospitals Book Chapter
In: Sayigh, Ali (Ed.): Sustainable Energy Development and Innovation: Selected Papers from the World Renewable Energy Congress (WREC) 2020, pp. 757–763, Springer International Publishing, Cham, 2022, ISBN: 978-3-030-76221-6.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@inbook{Dimoudi2022,
title = {The Energy Performance of Hospital Buildings in the South Balkan Region: The Prospects for Zero-Energy Hospitals},
author = {A. Dimoudi and A. Kantzioura and P. Toumpoulides and St Zoras and Despina Serghides and Stella Dimitriou and Stavroula Thravalou and M. Metaj and E. Mara and A. Dorri},
editor = {Ali Sayigh},
url = {https://doi.org/10.1007/978-3-030-76221-6_83},
doi = {10.1007/978-3-030-76221-6_83},
isbn = {978-3-030-76221-6},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
booktitle = {Sustainable Energy Development and Innovation: Selected Papers from the World Renewable Energy Congress (WREC) 2020},
pages = {757--763},
publisher = {Springer International Publishing},
address = {Cham},
abstract = {One of the basic energy objectives of EU is to decouple energy consumption from economic development. There is considerable work in EU countries on the definition of nearly zero-energy buildings but there is still lack of information for hospital buildings. Hospital buildings are considered complex systems as they are hosting several energy-intensive functions (HVAC under strict comfort conditions, high hot water demand, lighting, kitchen facilities, etc.). In the work discussed in this chapter, the energy performance of hospital building in the South Balkan region is assessed based on data collected in the frame of the ZenH project. The project aims to facilitate the implementation of the Energy Performance of Buildings Directive (EPBD) by defining the characteristics for zero-energy hospitals (ZenH) in the South Balkan region. The ZenH project is supported by the INTERREG Balkan-Mediterranean programme, funded by the European Commission. Data from three countries, Greece, Cyprus and Albania are assessed. The research indicates the great challenge for interventions to improve the energy performance of buildings and their upgrading into nZEB Hospitals.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {inbook}
}
Kyprianou, Ioanna; Varo, Ana"is; Puig, Salvador Martí I.; Serghides, Despina
Energy Poverty and Policy Implications in Two Mediterranean Countries Book Chapter
In: Sayigh, Ali (Ed.): Sustainable Energy Development and Innovation: Selected Papers from the World Renewable Energy Congress (WREC) 2020, pp. 523–531, Springer International Publishing, Cham, 2022, ISBN: 978-3-030-76221-6.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@inbook{Kyprianou2022,
title = {Energy Poverty and Policy Implications in Two Mediterranean Countries},
author = {Ioanna Kyprianou and Ana"is Varo and Salvador Martí I. Puig and Despina Serghides},
editor = {Ali Sayigh},
url = {https://doi.org/10.1007/978-3-030-76221-6_61},
doi = {10.1007/978-3-030-76221-6_61},
isbn = {978-3-030-76221-6},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
booktitle = {Sustainable Energy Development and Innovation: Selected Papers from the World Renewable Energy Congress (WREC) 2020},
pages = {523--531},
publisher = {Springer International Publishing},
address = {Cham},
abstract = {Energy poverty is a major concern for many European countries, with some form of centralised regulation being promoted through the European Commission and initiatives such as the new Green Deal. Nevertheless, research conducted for specific member states is rare. It is even more uncommon to follow a comparative approach and contrast similarities and differences between member states. This study aims to partially fill this gap, by using as case studies two disparate European countries (Cyprus and Spain) located in the Mediterranean region. The objective of this study is to enrich the research on existing mitigating measures related to energy poverty while incorporating a geographical consciousness from a Mediterranean area perspective. Materials and methods include an investigation into the current situation relative to energy poverty and the measures implemented to mitigate it, through literature reviews of research and non-academic material, as well as estimations of key indicators from national and European surveys. It also builds a novel classification of the Spanish Autonomous Communities depending on their energy poverty impact, as well as the measures implemented in each of the regions. Results highlight the main similarities and differences between the two countries, contrasting between the over-simplified framework in Cyprus and the vastly more intricate research and regulatory framework in Spain. This exploratory approach is perhaps the most significant contribution of this study, since it highlights that similarities can be found in the otherwise so distinct countries -- in terms of scale and modus operandi. Moreover, recommendations are made on how to provide sufficient and efficient support for energy vulnerable consumers in each member state.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {inbook}
}
Serghides, Despina; Dimitriou, Stella; Kyprianou, Ioanna
In: Sayigh, Ali (Ed.): Sustainable Energy Development and Innovation: Selected Papers from the World Renewable Energy Congress (WREC) 2020, pp. 419–429, Springer International Publishing, Cham, 2022, ISBN: 978-3-030-76221-6.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@inbook{Serghides2022b,
title = {Mediterranean Hospital Energy Performance Mapping: The Energy Auditing as a Tool Towards Zero Energy Healthcare Facilities},
author = {Despina Serghides and Stella Dimitriou and Ioanna Kyprianou},
editor = {Ali Sayigh},
url = {https://doi.org/10.1007/978-3-030-76221-6_50},
doi = {10.1007/978-3-030-76221-6_50},
isbn = {978-3-030-76221-6},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
booktitle = {Sustainable Energy Development and Innovation: Selected Papers from the World Renewable Energy Congress (WREC) 2020},
pages = {419--429},
publisher = {Springer International Publishing},
address = {Cham},
abstract = {Healthcare facilities are complicated building units which are expected to host several energy-intensive functions. Their energy performance is a topic worth thoroughly investigating so as to develop a nearly zero energy definition for healthcare facilities for the EU countries. Improving their energy performance will have a crucial impact in meeting the EU long-term goal (2050), which is to achieve a reduction of the CO2 emissions by 85% with respect the 1990 levels.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {inbook}
}
Serghides, Despina; Dimitriou, Stella; Kyprianou, Ioanna; Giannakis, Elias; Zittis, George
Developing Sustainable Cities for Climate Change Mitigation Book Chapter
In: Sayigh, Ali (Ed.): Sustainable Energy Development and Innovation: Selected Papers from the World Renewable Energy Congress (WREC) 2020, pp. 217–226, Springer International Publishing, Cham, 2022, ISBN: 978-3-030-76221-6.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@inbook{Serghides2022,
title = {Developing Sustainable Cities for Climate Change Mitigation},
author = {Despina Serghides and Stella Dimitriou and Ioanna Kyprianou and Elias Giannakis and George Zittis},
editor = {Ali Sayigh},
url = {https://doi.org/10.1007/978-3-030-76221-6_30},
doi = {10.1007/978-3-030-76221-6_30},
isbn = {978-3-030-76221-6},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
booktitle = {Sustainable Energy Development and Innovation: Selected Papers from the World Renewable Energy Congress (WREC) 2020},
pages = {217--226},
publisher = {Springer International Publishing},
address = {Cham},
abstract = {Cities are complex entities with manifold, multi-sectoral challenges requiring a multi-disciplinary, cross-functional approach to address the intricate problems they encounter for sustainable development. The cornerstones of such approach are integrated model-based design, life cycle methodology and integrated, holistic planning.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {inbook}
}
Despina||Kyprianou Serghides, Ioanna||Dimitriou
Indicators Toward Zero-Energy Houses for the Mediterranean Region Book Section
In: 2022, ISBN: 978-3-031-15218-4.
Abstract | Links | BibTeX | Tags:
@incollection{nokey,
title = {Indicators Toward Zero-Energy Houses for the Mediterranean Region},
author = {Serghides, Despina||Kyprianou, Ioanna||Dimitriou, Stella||Katafygiotou, Martha},
doi = {10.1007/978-3-031-15218-4_12},
isbn = {978-3-031-15218-4},
year = {2022},
date = {2022-11-09},
urldate = {2022-11-09},
abstract = {The European Union has framed ambitious CO2 reductions and energy-efficiency goals for the next decades. In 2050 the built environment should be nearly carbon neutral, with GHG emissions of 88–91% lower than in 1990. With the current trends, the national climate protection energy targets are unattainable without energy upgrading of the housing stock. Residential buildings account for the 63% of the total energy consumption of the building stock. The existing residential building stock exceeds the number of newly built dwellings in most developed countries. Therefore, the energy-efficient renovation of the existing housing stock is imperative in order to reduce the building energy consumption.
This chapter aims to define the average buildings in Cyprus and create a database that can be used for energy-efficient refurbishment studies for the Mediterranean countries. The energy performance indicators of residential building stocks evaluate the existing empirical data of a building stock and the input and outcome of building stock modeling toward zero-energy houses. The study underlies the procedure and the effectiveness of the average building approach and the use of monitoring energy performance indicators for developing energy reduction strategies toward zero-energy houses. The ultimate goal is to achieve the future energy target of 2030.},
keywords = {},
pubstate = {published},
tppubtype = {incollection}
}
Despina||Dimitriou Serghides, Stella||Kyprianou
Enhancing the Microclimate Toward Outdoor Thermal Comfort in Urban Isles of the Mediterranean Region Book Section
In: 2022, ISBN: 978-3-031-04714-5.
Abstract | Links | BibTeX | Tags:
@incollection{nokey,
title = {Enhancing the Microclimate Toward Outdoor Thermal Comfort in Urban Isles of the Mediterranean Region},
author = {Serghides, Despina||Dimitriou, Stella||Kyprianou, Ioanna||Papanicolas, Costas
},
doi = {10.1007/978-3-031-04714-5_4},
isbn = {978-3-031-04714-5},
year = {2022},
date = {2022-10-30},
urldate = {2022-10-30},
abstract = {Worldwide climate change concerns and rapid urbanization render sustainability in cities more crucial than ever. It is well established that cities produce a high percentage of global greenhouse gas emissions, and in developing countries, they bear very high costs associated with climate change. It is also assessed that the energy consumption in cities is increased due to the amplified use of air conditioning mechanical means, in order to compensate for the heat island phenomenon and to achieve the desired comfort levels both indoors and outdoors. This study uses as main tools for reducing energy consumption in the cities, renewable energy sources, the improvement of the urban fabric with energy-efficient measures, and the enhancement of the microclimate aiming at thermal comfort in outdoor urban spaces.
The general framework of this study is laid from the ERANET Europe project Smart Urban Isle (SUI), which takes into account both the buildings’ design and the energy management systems within the wider urban context, in order to assess the potential of using urban isles as key elements for the energy management and the development of smart sustainable cities. The Cyprus case study focuses on the impact of the existing urban fabric on the microclimate and the outdoor thermal comfort. This chapter investigates and evaluates, through simulations the current outdoor thermal comfort and the effect and contribution of outdoor materiality and element geometry, toward the possible improvement of thermal comfort at the pedestrian level, in the town center of Limassol, for typical summer and winter days.},
keywords = {},
pubstate = {published},
tppubtype = {incollection}
}
Kypros||Blanco Milidonis, Manuel Jesus||Grigoriev
UAV-based system and method for the characterization of the radiant field of reflective concentrating solar systems Patent
2022.
@patent{nokey,
title = {UAV-based system and method for the characterization of the radiant field of reflective concentrating solar systems},
author = {Milidonis, Kypros||Blanco, Manuel Jesus||Grigoriev, Victor||Bonanos, Aristides},
year = {2022},
date = {2022-11-10},
urldate = {2022-11-10},
abstract = {Currently, all the existing flux measurement systems that operate at concentrating solar facilities around the world are custom made, tailored for the specific needs of each application. Most of these systems are fixed at specific locations and are only able to characterize and obtain flux measurements on flat plates located in front of a receiver. They don't provide an overall estimate of the radiant field around the focal point or line of the Concentrating Solar System.
For the majority of the systems, expensive equipment is needed to carry out the measurements (i.e. high-end CCD or CMOS cameras) while the mechanics of the systems can be quite complex, issues of thermal expansion and thermal load by convection of hot air and radiation have to be considered in the design process. This imposes space requirements in front of the receiver to be implemented, and in most cases the need for complicated cooling circuits. Furthermore, those flux measurement systems should operate in a manner that they do not impose any interruptions to the operation of the plant. The above issues become even more significant at very large plants. In Concentrated Solar Tower system technology for instance, where the heliostat field is circular surrounding a cylindrical receiver on the tower making it is very difficult to implement a traditional method for characterizing the heat flux reaching the receiver, i.e. installing a vertical linear moving bar, which is moved along the circumferential receiver line is not an easy task, and, depending on the angle of acceptance of the receiver, several cameras are needed on the ground to capture the reflected radiation.},
keywords = {},
pubstate = {published},
tppubtype = {patent}
}
Kypros||Blanco Milidonis, Manuel Jesus||Grigoriev
UAV-based system and method for the characterization of the geometry of solar concentrating mirrors Patent
2022.
@patent{nokey,
title = {UAV-based system and method for the characterization of the geometry of solar concentrating mirrors},
author = {Milidonis, Kypros||Blanco, Manuel Jesus||Grigoriev, Victor||Bonanos, Aristides},
year = {2022},
date = {2022-11-10},
urldate = {2022-11-10},
abstract = {Currently, all the existing flux measurement systems that operate at concentrating solar facilities around the world are custom made, tailored for the specific needs of each application. Most of these systems, are fixed at specific locations and are only able to characterize and obtain flux measurements on flat plates located in front of a receiver. They don't provide an overall estimate of the radiant field around the focal point or line of the Concentrating Solar System
For the majority of the systems, expensive equipment is needed to carry out the measurements (i.e. high-end CCD or CMOS cameras) while the mechanics of the systems can be quite complex, issues of thermal expansion and thermal load by convection of hot air and radiation have to be considered in the design process. This imposes space requirements in front of the receiver to be implemented, and in most cases the need for complicated cooling circuits. Furthermore, those flux measurement systems should operate in a manner that they do not impose any interruptions to the operation of the plant. The above issues become even more significant at very large plants. In tower technology, for instance, where the heliostat field is circular surrounding a cylindrical receiver on the tower making it is very difficult to implement a traditional method for characterizing the heat flux reaching the receiver, i.e. installing a vertical linear moving bar, which is moved along the circumferential receiver line is not an easy task, and, depending on the angle of acceptance of the receiver, several cameras are needed on the ground to capture the reflected radiation.},
keywords = {},
pubstate = {published},
tppubtype = {patent}
}
Montenon, Alaric C.; Papanicolas, Costas N.
Economic assessment of a pv hybridized linear fresnel collector supplying air conditioning and electricity for buildings Journal Article
In: Energies, vol. 14, no. 1, pp. 131–1 – 131–25, 2021, ISSN: 19961073.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Montenon2021,
title = {Economic assessment of a pv hybridized linear fresnel collector supplying air conditioning and electricity for buildings},
author = {Alaric C. Montenon and Costas N. Papanicolas},
url = {https://www.mdpi.com/1996-1073/14/1/131},
doi = {10.3390/en14010131},
issn = {19961073},
year = {2021},
date = {2021-12-01},
journal = {Energies},
volume = {14},
number = {1},
pages = {131--1 -- 131--25},
publisher = {MDPI AG},
abstract = {The present study evaluates the potential upgrade of a Linear Fresnel Reflector (LFR) collector at the Cyprus Institute (CyI) with photovoltaics via the calculation of the Levelized Cost Of Heat (LCOH). For over 4 years the collector has been supplying heating and cooling to the Novel Technologies Laboratory (NTL) of the Cyprus Institute (CyI). Extensive measurements have been carried out both on the LFR and NTL to render real numbers in the computations. This hybridization would be undertaken with the installation of PV arrays under mirrors, so that the collector is able to either reflect direct radiation to the receiver to process heat or to produce electricity directly in the built environment. The main objective is the decrease of the LCOH of Linear Fresnel collectors, which hinders their wider deployment, while air conditioning demand is globally booming. The results show that the LCOH for a small LFR to supply air conditioning is high, ce25.2–30.1 per kWh, while the innovative PV hybridization proposed here decreases it. The value of the study resides in the real data collected in terms of thermal efficiency, operation, and maintenance.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Grigoriev, Victor; Milidonis, Kypros; Constantinou, Marios; Corsi, Clotilde; Pye, John; Blanco, Manuel J.
Optimal Sizing of Cylindrical Receivers for Surround Heliostat Fields Using fluxtracer Journal Article
In: Journal of Solar Energy Engineering, vol. 143, no. 6, 2021, ISSN: 0199-6231.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Grigoriev2021a,
title = {Optimal Sizing of Cylindrical Receivers for Surround Heliostat Fields Using fluxtracer},
author = {Victor Grigoriev and Kypros Milidonis and Marios Constantinou and Clotilde Corsi and John Pye and Manuel J. Blanco},
doi = {10.1115/1.4051315},
issn = {0199-6231},
year = {2021},
date = {2021-12-01},
journal = {Journal of Solar Energy Engineering},
volume = {143},
number = {6},
publisher = {American Society of Mechanical Engineers Digital Collection},
abstract = {This article presents an innovative approach for optimizing the dimensions of cylindrical receivers for solar tower systems. In this approach, a single set of rays, representative of a complete annual ray-tracing simulation of the solar tower system, is used and processed to evaluate numerous receiver designs simultaneously and to select the optimum. The simultaneous evaluation of receiver designs is achieved by exploiting the geometrical properties of the intersection between a ray and a cylinder, which allows estimating the annual energy intercepted by receivers of different heights without the need for processing the annual set of rays more than one time. Once the annual intercepted energy is known for each receiver, the application of a costing function estimating the receiver cost as a function of its surface area allows to estimate their cost and, therefore, to select the receiver dimensions that will yield a minimum surface area for a given annual energy interception factor. The overall workflow to carry out the mentioned receiver optimization approach has been implemented by adapting several open-source tools that The Cyprus Institute (CyI) is developing in collaboration with the Australian National University (ANU) to assist in the modeling, analysis, design, and optimization of concentrated solar thermal (CST) systems. This article also presents a detailed overview of the overall simulation workflow as well as a case study demonstrating the capabilities of the approach.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Carlucci, Salvatore; Erba, Silvia; Pagliano, Lorenzo; Dear, Richard
In: Energy and Buildings, vol. 250, pp. 111286, 2021, ISSN: 03787788.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Carlucci2021,
title = {ASHRAE Likelihood of Dissatisfaction: A new right-here and right-now thermal comfort index for assessing the Likelihood of dissatisfaction according to the ASHRAE adaptive comfort model},
author = {Salvatore Carlucci and Silvia Erba and Lorenzo Pagliano and Richard Dear},
doi = {10.1016/j.enbuild.2021.111286},
issn = {03787788},
year = {2021},
date = {2021-11-01},
journal = {Energy and Buildings},
volume = {250},
pages = {111286},
publisher = {Elsevier},
abstract = {The assessment of local and short-term thermal discomfort in buildings has been widely investigated, and different metrics are available in the literature to predict the likelihood of dissatisfied people. These metrics are named right-here and right-now discomfort indexes and constitute the basis for evaluating long-term thermal comfort conditions in buildings. Well-known examples are the Predicted Percentage of Dissatisfied (PPD) part of the Fanger comfort model included in the ISO standard 7730 and the Overheating risk index (NaOR), built upon the EN adaptive thermal comfort model. This study proposes a new index for use with the ASHRAE adaptive thermal comfort model to fill a gap in the literature and standard. It is called the ASHRAE Likelihood of Dissatisfaction (ALD) and is obtained from a logistic regression of the right-here and right-now thermal comfort field data contained in the 1990s ASHRAE RP-884 database. The recent release of another, more extensive database of thermal comfort field studies, the ASHRAE Global Thermal Comfort Database II, provides an opportunity to validate ALD with an independent dataset and assess its generalisability. The successful external validation of ALD and its agreement with NaOR give support to the reliability of the novel right-here and right-now index and open to the possibility to use it for assessing short-term thermal comfort conditions in buildings, calculating long-term thermal comfort indices based on the ASHRAE adaptive model, optimising both the design of new buildings and renovations and for assessing the operational thermal comfort performance of existing buildings.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Smedegård, Ole Øiene; Aas, Bjørn; Stene, Jørn; Georges, Laurent; Carlucci, Salvatore
Systematic and data-driven literature review of the energy and indoor environmental performance of swimming facilities Journal Article
In: Energy Efficiency, vol. 14, no. 7, pp. 1–27, 2021, ISSN: 15706478.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Smedegard2021,
title = {Systematic and data-driven literature review of the energy and indoor environmental performance of swimming facilities},
author = {Ole Øiene Smedegård and Bjørn Aas and Jørn Stene and Laurent Georges and Salvatore Carlucci},
url = {https://link.springer.com/article/10.1007/s12053-021-09985-6},
doi = {10.1007/S12053-021-09985-6/FIGURES/5},
issn = {15706478},
year = {2021},
date = {2021-10-01},
journal = {Energy Efficiency},
volume = {14},
number = {7},
pages = {1--27},
publisher = {Springer Science and Business Media B.V.},
abstract = {During the last few decades, focus on measures for energy conservation in buildings has increased considerably. The European Commission implemented the Energy Performance of Buildings Directive, which gave instructions to the member states about how to reduce energy consumption in residential and non-residential buildings. In the process of making the building sector more energy efficient, the building codes generally have become stricter with some simplifications applied in the requirements. For swimming facilities in Norway, these simplifications are undermining the purpose of the code by excluding the energy use related to the operation of swimming pools, which is the main part of the energy use in this building category. In other words, the energy use related to operation of the facility is not regulated. Furthermore, guidelines for the planning and operation of these types of facilities are outdated and research for this building category is sparse. These three aspects mean that there is a considerable potential for improvement. This paper presents a comprehensive literature review with bibliometric and thematic analyses of the contextualized research in swimming facilities from a heating, ventilation, and air-conditioning perspective. It maps the major trends during the past few decades, where areas like solar heating for outdoor pools, energy consumption, and air quality stand out. Except for air quality and disinfection by-products, research on these facilities is highly fragmented without any strong contributors to the various fields. Graphical abstract: [Figure not available: see fulltext.]},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Pisello, Anna Laura; Pigliautile, I.; Andargie, M.; Berger, Christiane; Bluyssen, P. M.; Carlucci, Salvatore; Chinazzo, G.; Belafi, Z. Deme; Dong, B.; Favero, Matteo; Ghahramani, A.; Havenith, G.; Heydarian, A.; Kastner, D.; Kong, M.; Licina, D.; Liu, Y.; Luna-Navarro, A.; Mahdavi, A.; Nocente, A.; Schweiker, Marcel; Touchie, M.; Vellei, M.; Vittori, F.; Wagner, Andreas; Wang, A.; Wei, S.
Test rooms to study human comfort in buildings: A review of controlled experiments and facilities Journal Article
In: Renewable and Sustainable Energy Reviews, vol. 149, pp. 111359, 2021, ISSN: 1364-0321.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Pisello2021,
title = {Test rooms to study human comfort in buildings: A review of controlled experiments and facilities},
author = {Anna Laura Pisello and I. Pigliautile and M. Andargie and Christiane Berger and P. M. Bluyssen and Salvatore Carlucci and G. Chinazzo and Z. Deme Belafi and B. Dong and Matteo Favero and A. Ghahramani and G. Havenith and A. Heydarian and D. Kastner and M. Kong and D. Licina and Y. Liu and A. Luna-Navarro and A. Mahdavi and A. Nocente and Marcel Schweiker and M. Touchie and M. Vellei and F. Vittori and Andreas Wagner and A. Wang and S. Wei},
doi = {10.1016/J.RSER.2021.111359},
issn = {1364-0321},
year = {2021},
date = {2021-10-01},
journal = {Renewable and Sustainable Energy Reviews},
volume = {149},
pages = {111359},
publisher = {Pergamon},
abstract = {Occupants' comfort perception affects building energy consumptions. To improve the understanding of human comfort, which is crucial to reduce energy demand, laboratory experiments with humans in controlled environments (test rooms) are fundamental, but their potential also depends on the characteristic of each research facility. Nowadays, there is no common understanding for definitions, concepts, and procedures related to human comfort studies performed in test rooms. Identifying common features would allow standardising test procedures, reproducing the same experiments in different contexts, and sharing knowledge and test possibilities. This review identifies 187 existing test rooms worldwide: 396 papers were systematically selected, thoroughly reviewed, and analysed in terms of performed experiments and related test room details. The review highlights a rising interest in the topic during the last years, since 46% of related papers has been published between 2016 and 2020. A growing interest in non-thermal sensory domains (such as visual and air quality) and multi-domain studies about occupant's whole comfort emerged from the results. These research trends have entailed a change in the way test rooms are designed, equipped and controlled, progressively becoming more realistic inhabitable environments. Nevertheless, some lacks in comfort investigation are highlighted: some continents (like Africa and South America) and climate zones are found to be underrepresented, while involved subjects are mainly students performing office tasks. This review aspires to guide scientists and professionals toward the improved design or the audit of test room experimental facilities, especially in countries and climate zones where human comfort indoors is under-studied.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Favero, Matteo; Sartori, Igor; Carlucci, Salvatore
Human thermal comfort under dynamic conditions: An experimental study Journal Article
In: Building and Environment, vol. 204, pp. 108144, 2021, ISSN: 0360-1323.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Favero2021,
title = {Human thermal comfort under dynamic conditions: An experimental study},
author = {Matteo Favero and Igor Sartori and Salvatore Carlucci},
doi = {10.1016/J.BUILDENV.2021.108144},
issn = {0360-1323},
year = {2021},
date = {2021-10-01},
journal = {Building and Environment},
volume = {204},
pages = {108144},
publisher = {Pergamon},
abstract = {Although thermal comfort has been a research topic since the 1960s, some knowledge gaps still affect understanding of the human response to changing thermal environments. To enhance knowledge in this regard, an exploratory study is presented, which aims to understand human response to monotonic thermal variations by describing its relationship with covariates of interest. Thirty-eight participants (29 females, 9 males) worked in an office-like climate chamber and were exposed to dynamic and controlled heating and cooling ramps of the operative temperature with different speeds. Participants' perception, evaluation, preference and acceptability of the indoor thermal environment were recorded by filling in dedicated questionnaires. Additionally, participants could indicate when an uncomfortable event occurred during these temperature ramps by clicking a digital button on a dedicated app. This discomfort event was defined in behavioural terms as the decision to “take action to restore a comfort condition”. Survival analysis was used to study participants' reactions to the dynamic thermal stimuli. It showed that two distinct mechanisms caused discomfort events due to overheating and undercooling: warm discomfort is driven by the absolute value of the achieved operative temperature, while the relative change in operative temperature mainly causes cold discomfort. Compared to the current recommendations regarding temperature cycles, drifts and ramps, this result shows that current standard recommendations underestimate the risk of thermal discomfort during a cooling process while overestimating it during a heating one. The new knowledge of human reaction to a dynamic thermal environment can lead to more energy-efficient and satisfactory building control strategies.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Sotiriou, Chryso; Zachariadis, Theodoros
A multi-objective optimisation approach to explore decarbonisation pathways in a dynamic policy context Journal Article
In: Journal of Cleaner Production, vol. 319, pp. 128623, 2021, ISSN: 0959-6526.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@article{Sotiriou2021b,
title = {A multi-objective optimisation approach to explore decarbonisation pathways in a dynamic policy context},
author = {Chryso Sotiriou and Theodoros Zachariadis},
doi = {10.1016/J.JCLEPRO.2021.128623},
issn = {0959-6526},
year = {2021},
date = {2021-10-01},
urldate = {2021-10-01},
journal = {Journal of Cleaner Production},
volume = {319},
pages = {128623},
publisher = {Elsevier},
abstract = {Climate policy is changing fast in the EU, with country leaders raising the bloc's ambition to reduce greenhouse gas emissions by 2030 and 2050. However, there is uncertainty about the allocation of decarbonisation effort between EU member states. This paper develops a multi-objective optimisation framework to provide insights to decision-makers in this policy context by exploring trade-offs between stronger decarbonisation goals and higher costs. Applying this approach for Cyprus, we find that the maximum achievable abatement for the EU Effort Sharing sectors corresponds to a 35% target. The current 24% ambition can be achieved with net social benefits, but the transition to higher abatement results in positive costs with a gradual rate of increase. The picture changes when decision-making explicitly accounts for external costs of emissions of greenhouse gases and air pollutants in the optimisation procedure. In this case, the least-cost solution delivers an abatement of about 32% and can yield social benefits of more than one billion Euros'2020. Regarding public expenditures, it requires about 3% of national GDP each year. This indicates that the socially optimal policy mix for attaining decarbonisation of the Cypriot economy is feasible but requires a consistent allocation of public funds to build infrastructure, overcome investment barriers and mobilise capital to enable the uptake of clean technologies across the economy. Although the modelling framework has been developed for a specific country and is tailored to the specific EU policy circumstances, the proposed methodology is entirely suitable for other world regions with a demanding decarbonisation roadmap.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {article}
}
Beltramo, Agnese; Ramos, Eunice Pereira; Taliotis, Constantinos; Howells, Mark; Usher, Will
The Global Least-cost user-friendly CLEWs Open-Source Exploratory model Journal Article
In: Environmental Modelling & Software, vol. 143, pp. 105091, 2021, ISSN: 1364-8152.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@article{Beltramo2021,
title = {The Global Least-cost user-friendly CLEWs Open-Source Exploratory model},
author = {Agnese Beltramo and Eunice Pereira Ramos and Constantinos Taliotis and Mark Howells and Will Usher},
doi = {10.1016/J.ENVSOFT.2021.105091},
issn = {1364-8152},
year = {2021},
date = {2021-09-01},
journal = {Environmental Modelling & Software},
volume = {143},
pages = {105091},
publisher = {Elsevier},
abstract = {Integrated Assessment Models (IAMs) are important tools to analyse cross-sectoral interdependencies and the use of global resources. Most current tools are highly detailed and require expert knowledge and proprietary software to generate scenarios and analyse their insights. In this paper, the complementary Global Least-cost User-friendly CLEWs Open-Source Exploratory (GLUCOSE) model is presented as a highly-aggregated global IAM, open and accessible from source to solver and using the OSeMOSYS tool and the CLEWs framework. The model enables the exploration of policy measures on the future development of the integrated resource system. Thanks to its relatively simple structure, it requires low computational resources allowing for the generation of a large number of scenarios or to quickly conduct preliminary investigations. GLUCOSE is targeted towards education and training purposes by a range of interested parties, from students to stakeholders and decision-makers, to explore possible future pathways towards the sustainable management of global resources.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {article}
}
Carlucci, Salvatore; Causone, Francesco; Biandrate, Silvia; Ferrando, Martina; Moazami, Amin; Erba, Silvia
On the impact of stochastic modeling of occupant behavior on the energy use of office buildings Journal Article
In: Energy and Buildings, vol. 246, pp. 111049, 2021, ISSN: 03787788.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Carlucci2021a,
title = {On the impact of stochastic modeling of occupant behavior on the energy use of office buildings},
author = {Salvatore Carlucci and Francesco Causone and Silvia Biandrate and Martina Ferrando and Amin Moazami and Silvia Erba},
doi = {10.1016/j.enbuild.2021.111049},
issn = {03787788},
year = {2021},
date = {2021-09-01},
journal = {Energy and Buildings},
volume = {246},
pages = {111049},
publisher = {Elsevier},
abstract = {The reliability of building performance simulation is hindered by several uncertainties, with aleatory uncertainty due to occupant behavior being one of the most critical. The present study aims to assess the propagation of uncertainty due to the adoption of stochastic models for modeling Occupant Presence and Actions (OPAs) available in the literature on the annual electric energy use of a reference office building. To this purpose, a global sensitivity analysis was designed and carried out by analyzing model inputs and energy outputs of 144 permutations of 15 different stochastic models for OPAs for a total of 7200 simulations. Building energy use computed considering stochastic OPAs modeling resulted in being sensibly higher than the reference value estimated assuming scheduled occupancy and rule-based occupant's actions as suggested by reference standards. The median value of the electric energy use was 58.6% higher than the base case electric energy use. Furthermore, the stochastic models used to model window operation have the highest effect on energy output, followed by light switch-off, and occupancy models. Light switch-on models showed a lower influence on the overall building energy performance. Furthermore, the Generalized Estimating Equations method was adopted to assess the interdependence among stochastic models for OPA and showed that changing the stochastic model in window operation, occupancy estimation, and light switch-off behavior generates a considerable difference in building's energy performance. Contrariwise, the available stochastic models for light switch-on and blind operation perform quite similarly among each other and have a limited impact on a building's energy performance.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Karmellos, Marios; Kosmadakis, V.; Dimas, P.; Tsakanikas, A.; Fylaktos, Nestor; Taliotis, Constantinos; Zachariadis, Theodoros
A decomposition and decoupling analysis of carbon dioxide emissions from electricity generation: Evidence from the EU-27 and the UK Journal Article
In: Energy, vol. 231, pp. 120861, 2021, ISSN: 0360-5442.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@article{Karmellos2021,
title = {A decomposition and decoupling analysis of carbon dioxide emissions from electricity generation: Evidence from the EU-27 and the UK},
author = {Marios Karmellos and V. Kosmadakis and P. Dimas and A. Tsakanikas and Nestor Fylaktos and Constantinos Taliotis and Theodoros Zachariadis},
doi = {10.1016/J.ENERGY.2021.120861},
issn = {0360-5442},
year = {2021},
date = {2021-09-01},
journal = {Energy},
volume = {231},
pages = {120861},
publisher = {Pergamon},
abstract = {In this paper the driving factors of carbon dioxide emissions from electricity generation in the European Union are examined for the years 2000–2018, separated into three time periods using decomposition analysis, and particularly LMDI-I. Seven driving factors are examined, namely the economic activity effect, the population effect, the electricity intensity effect, the electricity trade effect, the energy intensity effect, the generation structure effect, and the emissions factor effect. The results showed that the main driving factor leading to increased carbon dioxide emissions is the economic activity effect counterbalanced mainly by the contribution of the generation structure effect. Moreover, a decoupling analysis between economic growth and carbon dioxide emissions was carried out aiming to identify the state of each country for each period. In the third examined period (2013–2018) most countries in the EU-27 are in a state of strong decoupling.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {article}
}
Smedegård, Ole Øiene; Jonsson, Thomas; Aas, Bjørn; Stene, Jørn; Georges, Laurent; Carlucci, Salvatore
The implementation of multiple linear regression for swimming pool facilities: Case study at Jøa, Norway Journal Article
In: Energies, vol. 14, no. 16, pp. 4825, 2021, ISSN: 19961073.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Smedegard2021a,
title = {The implementation of multiple linear regression for swimming pool facilities: Case study at Jøa, Norway},
author = {Ole Øiene Smedegård and Thomas Jonsson and Bjørn Aas and Jørn Stene and Laurent Georges and Salvatore Carlucci},
url = {https://www.mdpi.com/1996-1073/14/16/4825/htm https://www.mdpi.com/1996-1073/14/16/4825},
doi = {10.3390/en14164825},
issn = {19961073},
year = {2021},
date = {2021-08-01},
journal = {Energies},
volume = {14},
number = {16},
pages = {4825},
publisher = {Multidisciplinary Digital Publishing Institute},
abstract = {This paper presents a statistical model for predicting the time-averaged total power consumption of an indoor swimming facility. The model can be a powerful tool for continuous supervision of the facility's energy performance that can quickly disclose possible operational disruptions/irregularities and thus minimize annual energy use. Multiple linear regression analysis is used to analyze data collected in a swimming facility in Norway. The resolution of the original training dataset was in 1 min time steps and during the investigation was transposed both by time-averaging the data, and by treating part of the dataset exclusively. The statistically significant independent variables were found to be the outdoor dry-bulb temperature and the relative pool usage factor. The model accurately predicted the power consumption in the validation process, and also succeeded in disclosing all the critical operational disruptions in the validation dataset correctly. The model can therefore be applied as a dynamic energy benchmark for fault detection in swimming facilities. The final energy prediction model is relatively simple and can be deployed either in a spreadsheet or in the building automation reporting system, thus the method can contribute instantly to keep the operation of any swimming facility within the optimal individual energy performance range.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Milidonis, Kypros; Blanco, Manuel J.; Grigoriev, Victor; Panagiotou, Constantinos F.; Bonanos, Aristides M.; Constantinou, Marios; Pye, John; Asselineau, Charles Alexis
Review of application of AI techniques to Solar Tower Systems Journal Article
In: Solar Energy, vol. 224, pp. 500–515, 2021, ISSN: 0038-092X.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Milidonis2021,
title = {Review of application of AI techniques to Solar Tower Systems},
author = {Kypros Milidonis and Manuel J. Blanco and Victor Grigoriev and Constantinos F. Panagiotou and Aristides M. Bonanos and Marios Constantinou and John Pye and Charles Alexis Asselineau},
doi = {10.1016/J.SOLENER.2021.06.009},
issn = {0038-092X},
year = {2021},
date = {2021-08-01},
journal = {Solar Energy},
volume = {224},
pages = {500--515},
publisher = {Pergamon},
abstract = {Artificial Intelligence (AI) is increasingly playing a significant role in the design and optimization of renewable energy systems. Many AI approaches and technologies are already widely deployed in the energy sector in applications such as generation forecasting, energy efficiency monitoring, energy storage, and overall design of energy systems. This paper provides a review of the applications of key AI techniques on the analysis, design, optimization, control, operation, and maintenance of Solar Tower systems, one of the most important types of Concentrating Solar Thermal (CST) systems. First, key AI techniques are briefly described and relevant examples of their application to CST systems in general are provided. Subsequently, a detailed review of how these AI techniques are being used to advance the state of the art of solar tower systems is presented. The review is structured around the different subsystems of a solar tower system.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Elias||Zittis Giannakis, Georgios
Assessing the Economic Structure, Climate Change and Decarbonisation in Europe Journal Article
In: Earth Systems and Environment, vol. 5, 2021.
Abstract | Links | BibTeX | Tags:
@article{nokey,
title = {Assessing the Economic Structure, Climate Change and Decarbonisation in Europe},
author = {Giannakis, Elias||Zittis, Georgios
},
doi = {10.1007/s41748-021-00232-7},
year = {2021},
date = {2021-07-14},
urldate = {2021-07-14},
journal = {Earth Systems and Environment},
volume = {5},
abstract = {Anthropogenic greenhouse gas (GHG) emissions coming mainly from fossil fuel combustion for energy use are causing air temperature increases resulting in climate change. This study employs an environmentally extended input–output model to conduct an economy-wide assessment of GHG emissions in the European Union (EU). Model results indicate that the assumed growth of economic activity by 2030 will lead to a large increase in GHG emissions by 89%, assuming no technological change and no additional policy mitigation efforts. The electricity sector and agriculture create the highest direct and indirect GHG emissions per unit of economic output across the 27 EU member states (EU-27); for every 1-million-euro-increase in the final demand for the products and services of the electricity sector and agriculture, 2198 and 1410 additional tons of GHG emit, respectively. Regional climate projections under a low-decarbonisation pathway (RCP8.5), in accordance with our economic analysis, indicate a further increase of regional warming, combined with pronounced changes in the hydrological cycle. Contrariwise, following a strong mitigation pathway (RCP2.6) will result in warming levels lower than 1.5 °C with respect to the 1986–2005 reference period. Our findings reveal the importance of both direct and indirect contribution of economic sectors in the generation of GHG emissions, taking into consideration the size of the sectors and the assumed growth rates. The design and implementation of sectoral emission reduction policies from the perspective of the whole production supply chain can effectively contribute to GHG emission reduction commitments.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Blanco, Manuel J.; Grigoriev, Victor; Milidonis, Kypros; Tsouloupas, George; Larrañeta, Miguel; Silva, Manuel
Minimizing the computational effort to optimize solar concentrators with the open-source tools sunpath and tonatiuh++ Journal Article
In: Energies, vol. 14, no. 15, 2021, ISSN: 19961073.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Blanco2021,
title = {Minimizing the computational effort to optimize solar concentrators with the open-source tools sunpath and tonatiuh++},
author = {Manuel J. Blanco and Victor Grigoriev and Kypros Milidonis and George Tsouloupas and Miguel Larrañeta and Manuel Silva},
url = {https://www.mdpi.com/1197782},
doi = {10.3390/en14154412},
issn = {19961073},
year = {2021},
date = {2021-07-01},
journal = {Energies},
volume = {14},
number = {15},
abstract = {Integrals that are of interest in the analysis, design, and optimization of concentrating solar thermal systems (CST), such as the annual optical efficiency of the light collection and concentration (LCC) subsystem, can be accurately computed or estimated in two distinct ways: on the time domain and on the spatial domain. This article explores these two ways, using a case study that is highly representative of the commercial CST systems being deployed worldwide. In the time domain, the computation of these integrals are explored using 1-min, 10-min, and 1-h solar DNI input data and using The Cyprus Institute (CyI)'s High-Performance Computing (HPC) system and an open-source ray tracer, Tonatiuh++, being actively developed at CyI. In the spatial domain, the computation of these integrals is explored using SunPATH, another open-source software tool being actively developed at CyI, in tandem with Tonatiuh++. The comparison between the time and spatial domain approach clearly indicate that the spatial domain approach using SunPATH is dramatically more computationally efficient than the time domain approach. According to the results obtained, at least for the case study analyzed in this article, to compute the annual energy delivered by the LCC subsystem with a relative error less than 0.1%, it is enough to provide SunPATH with 1-h DNI data as input, request from SunPATH the sun position and weights of just 30 points in the celestial sphere, and run Tonatiuh++ to simulate these 30 points using 15 million rays per run. As the test case is highly representative, it is expected that this approach will yield similar results for most CST systems of interest.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Dong, Bing; Liu, Yapan; Fontenot, Hannah; Ouf, Mohamed M.; Osman, Mohamed; Chong, Adrian; Qin, Shuxu; Salim, Flora; Xue, Hao; Yan, Da; Jin, Yuan; Han, Mengjie; Zhang, Xingxing; Azar, Elie; Carlucci, Salvatore
Occupant behavior modeling methods for resilient building design, operation and policy at urban scale: A review Journal Article
In: Applied Energy, vol. 293, pp. 116856, 2021, ISSN: 0306-2619.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Dong2021,
title = {Occupant behavior modeling methods for resilient building design, operation and policy at urban scale: A review},
author = {Bing Dong and Yapan Liu and Hannah Fontenot and Mohamed M. Ouf and Mohamed Osman and Adrian Chong and Shuxu Qin and Flora Salim and Hao Xue and Da Yan and Yuan Jin and Mengjie Han and Xingxing Zhang and Elie Azar and Salvatore Carlucci},
doi = {10.1016/J.APENERGY.2021.116856},
issn = {0306-2619},
year = {2021},
date = {2021-07-01},
journal = {Applied Energy},
volume = {293},
pages = {116856},
publisher = {Elsevier},
abstract = {Traditional occupant behavior modeling has been studied at the building level, and it has become an important factor in the investigation of building energy consumption. However, studies modeling occupant behaviors at the urban scale are still limited. Recent work has revealed that urban big data can enable occupant behavior modeling at the urban scale – however, utilizing the existing data sources and modeling methods in building science to model urban scale occupant behaviors can be quite challenging. Beyond building science, urban scale human behaviors have been studied in several different domains using more advanced modeling methods, including Stochastic Modeling, Neural Networks, Reinforcement Learning, Network Modeling, etc. This paper aims to bridge the gap between data sources and modeling methodologies in building science by borrowing from other domains. Based on a comprehensive review, we 1) identify the modeling challenges of the current approaches in building science, 2) discuss the modeling requirements and data sources both in building science and other domains, 3) review the current modeling methods in building science and other domains, and 4) summarize available performance evaluation metrics for evaluating the modeling methods. Finally, we present future opportunities in building science with enhanced data sources and modeling methods from other domains.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Thravalou, Stavroula; Philokyprou, Maria
In: Frontiers of Architectural Research, vol. 10, no. 1, pp. 176–189, 2021, ISSN: 2095-2635.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Thravalou2021,
title = {Urban design considerations in the environmental assessment of vernacular buildings with timber projections (sachnisi): The case of Nicosia's historic center},
author = {Stavroula Thravalou and Maria Philokyprou},
doi = {10.1016/J.FOAR.2020.11.001},
issn = {2095-2635},
year = {2021},
date = {2021-03-01},
urldate = {2021-03-01},
journal = {Frontiers of Architectural Research},
volume = {10},
number = {1},
pages = {176--189},
publisher = {Elsevier},
abstract = {In this study, the environmental responsiveness of built heritage is closely connected with the aspects of building typology and urban canyon geometry. The focus of this study is on two-story adobe buildings with lightweight timber projections, locally called sachnisi, which are located on the first floor, above the pass-through space on the ground floor, locally known as portico. The field study reveals and maps a total of 246 sachnisi projections across the walled city of Nicosia, Cyprus, a typical Mediterranean area. This research is the first systematic attempt to integrate cultural, historical, and environmental factors and the urban- and building-scale environmental characteristics of vernacular heritage. The findings highlight thermal adaptive opportunities and passive cooling strategies, i.e., natural ventilation, enhanced by aligning the portico axis with the prime wind direction and operating various openings of the sachnisis. The research also demonstrates that the building orientation and the proportions of sachnisis and porticos are insensitive to the street geometry. Thus, functional and morphological parameters (in addition to climatic parameters) are also significant in the configuration of these architectural elements. The originality and academic contribution of this study lie within the systematic and comprehensive methodology followed, which can be applied to other urban heritage sites. The use of innovative, multidisciplinary methods and tools in heritage studies is also recommended.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Ramos, Eunice Pereira; Howells, Mark; Sridharan, Vignesh; Engström, Rebecka Ericsdotter; Taliotis, Constantinos; Mentis, Dimitris; Gardumi, Francesco; Strasser, Lucia; Pappis, Ioannis; Balderrama, Gabriela Peña; Almulla, Youssef; Beltramo, Agnese; Ramirez, Camilo; Sundin, Caroline; Alfstad, Thomas; Lipponen, Annukka; Zepeda, Eduardo; Niet, Taco; Quirós-Tortós, Jairo; Angulo-Paniagua, Jam; Shivakumar, Abhishek; Ulloa, Silvia; Rogner, Holger
The climate, land, energy, and water systems (CLEWs) framework: a retrospective of activities and advances to 2019 Journal Article
In: Environmental Research Letters, vol. 16, no. 3, pp. 033003, 2021, ISSN: 1748-9326.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@article{Ramos2021,
title = {The climate, land, energy, and water systems (CLEWs) framework: a retrospective of activities and advances to 2019},
author = {Eunice Pereira Ramos and Mark Howells and Vignesh Sridharan and Rebecka Ericsdotter Engström and Constantinos Taliotis and Dimitris Mentis and Francesco Gardumi and Lucia Strasser and Ioannis Pappis and Gabriela Peña Balderrama and Youssef Almulla and Agnese Beltramo and Camilo Ramirez and Caroline Sundin and Thomas Alfstad and Annukka Lipponen and Eduardo Zepeda and Taco Niet and Jairo Quirós-Tortós and Jam Angulo-Paniagua and Abhishek Shivakumar and Silvia Ulloa and Holger Rogner},
url = {https://iopscience.iop.org/article/10.1088/1748-9326/abd34f https://iopscience.iop.org/article/10.1088/1748-9326/abd34f/meta},
doi = {10.1088/1748-9326/ABD34F},
issn = {1748-9326},
year = {2021},
date = {2021-02-01},
journal = {Environmental Research Letters},
volume = {16},
number = {3},
pages = {033003},
publisher = {IOP Publishing},
abstract = {Population growth, urbanization and economic development drive the use of resources. Securing access to essential services such as energy, water, and food, while achieving sustainable development, require that policy and planning processes follow an integrated approach. The 'Climate-, Land-, Energy- and Water-systems' (CLEWs) framework assists the exploration of interactions between (and within) CLEW systems via quantitative means. The approach was first introduced by the International Atomic Energy Agency to conduct an integrated systems analysis of a biofuel chain. The framework assists the exploration of interactions between (and within) CLEW systems via quantitative means. Its multi-institutional application to the case of Mauritius in 2012 initiated the deployment of the framework. A vast number of completed and ongoing applications of CLEWs span different spatial and temporal scales, discussing two or more resource interactions under different political contexts. Also, the studies vary in purpose. This shapes the methods that support CLEWs-type analyses. In this paper, we detail the main steps of the CLEWs framework in perspective to its application over the years. We summarise and compare key applications, both published in the scientific literature, as working papers and reports by international organizations. We discuss differences in terms of geographic scope, purpose, interactions represented, analytical approach and stakeholder involvement. In addition, we review other assessments, which contributed to the advancement of the CLEWs framework. The paper delivers recommendations for the future development of the framework, as well as keys to success in this type of evaluations.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {article}
}
Grigoriev, Victor; Milidonis, Kypros; Blanco, Manuel J.; Constantinou, Marios
Method to determine the tracking angles of heliostats Journal Article
In: MethodsX, vol. 8, no. MEX 101244, pp. 101244, 2021, ISSN: 22150161.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Grigoriev2021,
title = {Method to determine the tracking angles of heliostats},
author = {Victor Grigoriev and Kypros Milidonis and Manuel J. Blanco and Marios Constantinou},
url = {https://linkinghub.elsevier.com/retrieve/pii/S2215016121000376},
doi = {10.1016/j.mex.2021.101244},
issn = {22150161},
year = {2021},
date = {2021-01-01},
journal = {MethodsX},
volume = {8},
number = {MEX 101244},
pages = {101244},
publisher = {Elsevier},
abstract = {The heliostats with two tracking axes are considered, and the method is presented to find the tracking angles for reflection of sun light to a given target. An important advantage of the method is that the tracking axes are not required to be orthogonal like in azimuth-elevation, tilt-roll or target-aligned heliostats. All of these configurations are covered in a unified way, and the presented solution is valid even for arbitrary orientation of tracking axes. The ability to have such a general solution is very valuable, because the orthogonality condition may not hold precisely for manufacturing reasons or due to degradation of heliostats. These deviations need to be corrected properly to achieve a high concentration of sun light. The offsets between tracking axes are also taken into account. However, the targeting problem for heliostats in this case becomes considerably different from the inverse kinematic problems for robotic arm manipulators. It is shown that the tracking angles can be found iteratively, and the convergence of results is very fast for a typical set of parameters used in solar thermal plants. To simplify the use of the method, a Python-library HelioK was developed, and it is demonstrated how to work with it in a Jupyter-notebook. To explain the kinematics of heliostats better, a 3D model of heliostat is provided, which was made and animated in an open-source 3D editor Blender. The main highlights of the method: • The tracking axes and the facet of heliostat can have an arbitrary orientation, and there can be offsets between them. • The tracking problem is solved both for targets attached to heliostat (local aiming) and for separated targets (global aiming). • The single-axis trackers are included as a limiting case.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Bonanos, Aristides M.; Votyakov, Evgeny
Analysis of thermocline thermal energy storage systems with generic initial condition algebraic model Journal Article
In: Solar Energy, vol. 213, pp. 154–162, 2021, ISSN: 0038-092X.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Bonanos2021,
title = {Analysis of thermocline thermal energy storage systems with generic initial condition algebraic model},
author = {Aristides M. Bonanos and Evgeny Votyakov},
doi = {10.1016/J.SOLENER.2020.11.011},
issn = {0038-092X},
year = {2021},
date = {2021-01-01},
journal = {Solar Energy},
volume = {213},
pages = {154--162},
publisher = {Pergamon},
abstract = {Thermal energy storage is key in making solar-thermal power plants more economically competitive compared to conventional plants. In this work, a new algebraic solution for thermocline thermal energy storage tanks, allowing for any initial temperature profile, is developed and presented. The model, called the Algebraic IC model, is successfully validated by comparing with experimental data and numerical solution of the governing partial differential equations. Additionally, the algebraic solution is extended to incorporate heat losses from the thermocline tank walls to the environment. The algebraic solution is significantly less computationally expensive than other one-dimensional models, since algebraic, rather than differential, equations are solved. An explicit formula for optimal fluid velocity is developed and validated through a parametric study of a thermocline tank. The effect of the dimensionless heat transfer coefficient is also investigated. Finally, the operation of thermocline tanks under multiple consecutive charging and discharging cycles is studied. The tank efficiency depends on the amount of thermocline allowed to exit during each cycle, and was found to decrease initially and subsequently reach steady state in less than 10 cycles.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Ramos, Eunice; Moksnes, Nandi; Lipponen, Annukka; Strasser, Lucia; Taliotis, Constantinos; Siyal, Shahid; Mentis, Dimitris; Howells, Mark
The role of energy efficiency in the management of water resources of the syr darya river basin Journal Article
In: International Journal of Environment and Sustainable Development, vol. 20, no. 1, pp. 64–88, 2021, ISSN: 14746778.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@article{Ramos2021a,
title = {The role of energy efficiency in the management of water resources of the syr darya river basin},
author = {Eunice Ramos and Nandi Moksnes and Annukka Lipponen and Lucia Strasser and Constantinos Taliotis and Shahid Siyal and Dimitris Mentis and Mark Howells},
doi = {10.1504/IJESD.2021.112667},
issn = {14746778},
year = {2021},
date = {2021-01-01},
journal = {International Journal of Environment and Sustainable Development},
volume = {20},
number = {1},
pages = {64--88},
publisher = {Inderscience Publishers},
abstract = {A motivation for integrated resource assessments is that they can capture indirect cross-sectoral effects of sectoral policies. This work investigates the electricity system implications from the implementation of basin-wide electricity and water systems efficiency measures. The spatial scope includes the four states that share the Syr Darya River basin. Different interests dictate the management of water resources in the basin. They are necessary for irrigation downstream in spring and summer and upstream, for hydropower generation during winter. The study investigated options to decrease the need for electricity upstream through efficiency measures and by the expansion of regional electricity trade. The scenarios were simulated by developing a multi-country electricity system model using the open source energy modelling system (OSeMOSYS). The results show that lesser investments in hydropower capacity could be needed and less water required in winter. This would reduce pressure on shared water resources.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {article}
}
Castaño-Rosa, Raúl; Barrella, Roberto; Sánchez-Guevara, Carmen; Barbosa, Ricardo; Kyprianou, Ioanna; Paschalidou, Eleftheria; Thomaidis, Nikolaos S; Dokupilova, Dusana; Gouveia, João Pedro; Kádár, József; Hamed, Tareq Abu; Palma, Pedro
Cooling Degree Models and Future Energy Demand in the Residential Sector. A Seven-Country Case Study Journal Article
In: Sustainability, vol. 13, no. 5, 2021, ISSN: 2071-1050.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{su13052987,
title = {Cooling Degree Models and Future Energy Demand in the Residential Sector. A Seven-Country Case Study},
author = {Raúl Castaño-Rosa and Roberto Barrella and Carmen Sánchez-Guevara and Ricardo Barbosa and Ioanna Kyprianou and Eleftheria Paschalidou and Nikolaos S Thomaidis and Dusana Dokupilova and João Pedro Gouveia and József Kádár and Tareq Abu Hamed and Pedro Palma},
url = {https://www.mdpi.com/2071-1050/13/5/2987},
doi = {10.3390/su13052987},
issn = {2071-1050},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {Sustainability},
volume = {13},
number = {5},
abstract = {The intensity and duration of hot weather and the number of extreme weather events, such as heatwaves, are increasing, leading to a growing need for space cooling energy demand. Together with the building stock's low energy performance, this phenomenon may also increase households' energy consumption. On the other hand, the low level of ownership of cooling equipment can cause low energy consumption, leading to a lack of indoor thermal comfort and several health-related problems, yet increasing the risk of energy poverty in summer. Understanding future temperature variations and the associated impacts on building cooling demand will allow mitigating future issues related to a warmer climate. In this respect, this paper analyses the effects of change in temperatures in the residential sector cooling demand in 2050 for a case study of nineteen cities across seven countries: Cyprus, Finland, Greece, Israel, Portugal, Slovakia, and Spain, by estimating cooling degree days and hours (CDD and CDH). CDD and CDH are calculated using both fixed and adaptive thermal comfort temperature thresholds for 2020 and 2050, understanding their strengths and weaknesses to assess the effects of warmer temperatures. Results suggest a noticeable average increase in CDD and CDH values, up to double, by using both thresholds for 2050, with a particular interest in northern countries where structural modifications in the building stock and occupants' behavior should be anticipated. Furthermore, the use of the adaptive thermal comfort threshold shows that the projected temperature increases for 2050 might affect people's capability to adapt their comfort band (i.e., indoor habitability) as temperatures would be higher than the maximum admissible values for people's comfort and health.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Alaric||Pyrgou Montenon, Andri||Kyprianou Dracou
Smart Buildings, Smart Communities and Demand Response Book
2021, ISBN: 9.78179E+12.
@book{nokey,
title = {Smart Buildings, Smart Communities and Demand Response},
author = {Montenon, Alaric||Pyrgou, Andri||Kyprianou Dracou, Marina
},
doi = {10.1002/9781119804246},
isbn = {9.78179E+12},
year = {2021},
date = {2021-01-09},
urldate = {2021-01-09},
keywords = {},
pubstate = {published},
tppubtype = {book}
}
Zachariadis, Theodoros
Incentivising the Green Recovery - Some Reflections based on EU Recovery Plans Conference
2021.
BibTeX | Tags:
@conference{nokey,
title = {Incentivising the Green Recovery - Some Reflections based on EU Recovery Plans},
author = {Zachariadis, Theodoros},
year = {2021},
date = {2021-04-01},
urldate = {2021-04-01},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Koundouri, Phoebe; Sachs, Jeffery; Zachariadis, Theodoros; Devves, Stathis; Plataniotis, Angelos; Pappa, C; Armiento, M.; Crisci, G.; Tessari, F.; Cozzi, L.; Wetzel, D.; Mazzucato, M.; McPherson, M.
Climate Policy In The Broader Sustainability Context: Joint Implementation Of Agenda 2030 And The European Green Deal Book Chapter
In: Caselli, F; Ludwig, A; Ploeg, A (Ed.): No Brainers and Low-Hanging Fruit in National Climate Policy, Chapter 19, Centre for Economic Policy Research, UK, 2021, ISBN: 978-1-912179-51-0.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@inbook{Koundouri2021,
title = {Climate Policy In The Broader Sustainability Context: Joint Implementation Of Agenda 2030 And The European Green Deal},
author = {Phoebe Koundouri and Jeffery Sachs and Theodoros Zachariadis and Stathis Devves and Angelos Plataniotis and C Pappa and M. Armiento and G. Crisci and F. Tessari and L. Cozzi and D. Wetzel and M. Mazzucato and M. McPherson},
editor = {F Caselli and A Ludwig and A Ploeg},
url = {https://voxeu.org/content/no-brainers-and-low-hanging-fruit-national-climate-policy},
isbn = {978-1-912179-51-0},
year = {2021},
date = {2021-10-01},
urldate = {2021-10-01},
booktitle = {No Brainers and Low-Hanging Fruit in National Climate Policy},
publisher = {Centre for Economic Policy Research, UK},
chapter = {19},
abstract = {The European Green Deal was approved in December 2019 by European Union Leaders, laying out a broad set of objectives for a climate-neutral, resource-efficient, technologically sophisticated, and socially equitable continent. The EU has also decided to integrate the Sustainable Development Goals (SDGs) of UN Agenda 2030 in the European Semester, the EU's main mechanism for coordinating national economic and employment strategies. Further, the EU responded to the enormous consequences of Covid-19 by enacting a robust "Next Generation EU" package of policies and resources to help Europe's economy recover while pursuing its green transformation. To link these four major policy initiatives the SDGs, the European Green Deal, the European Semester, and the EU recovery plan we co-authored the report: "Transformations for the Joint Implementation of Agenda 2030 for Sustainable Development and the European Green Deal: A Green and Digital, Job-Based and Inclusive Recovery from the COVID-19 Pandemic", which was released in February 2021 by the UN Sustainable Development Solutions Network Europe (SDSN Europe). In this article, we use part of the work performed in that report to present how the objectives of Agenda 2030 and the European Green Deal can be aligned and provide actionable recommendations to policymakers for this purpose.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {inbook}
}
Nikos, Kampelis; Konstantinos, Gobakis; Vagias, Vagias; Denia, Kolokotsa; Laura, Standardi; Daniela, Isidori; Cristina, Cristalli; Maria, Montagnino Fabio; Filippo, Paredes; Pietro, Muratore; Luca, Venezia; Kyprianou, Dracou Marina; Montenon, Alaric C.; Andri, Pyrgou; Theoni, Karlessi; Mattheos, Santamouris
DR in Smart and Near-zero Energy Buildings: The Leaf Community Book Chapter
In: Smart Buildings, Smart Communities and Demand Response, Chapter 2, pp. 37–42, John Wiley & Sons, Ltd, 2021, ISBN: 9781119804246.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@inbook{doi:https://doi.org/10.1002/9781119804246.ch2,
title = {DR in Smart and Near-zero Energy Buildings: The Leaf Community},
author = {Kampelis Nikos and Gobakis Konstantinos and Vagias Vagias and Kolokotsa Denia and Standardi Laura and Isidori Daniela and Cristalli Cristina and Montagnino Fabio Maria and Paredes Filippo and Muratore Pietro and Venezia Luca and Dracou Marina Kyprianou and Alaric C. Montenon and Pyrgou Andri and Karlessi Theoni and Santamouris Mattheos},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/9781119804246.ch2},
doi = {https://doi.org/10.1002/9781119804246.ch2},
isbn = {9781119804246},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
booktitle = {Smart Buildings, Smart Communities and Demand Response},
pages = {37--42},
publisher = {John Wiley & Sons, Ltd},
chapter = {2},
abstract = {Summary The Leaf Community is a unique blend of inspired qualified personnel where the preservation of the natural environment, renewable energy sources and worldwide R&D meets education, local culture and society. The Leaf Lab is an industrial building of a rectangular shape and a floor area of approximately 6,000 m2 located in the Leaf Community, one of the very well-established smart microgrids in Europe. The Leaf Lab is a near-zero energy building, combining passive systems, energy-efficient technologies, integrated monitoring and control, as well as renewable energy production. The number of residents in the Leaf House varies, as it accommodates both employees of the Loccioni Group and short-term visitors of the Leaf Community. The apartments in the Leaf House are equipped with a touch display providing access to an energy management interface for observing indoor conditions and energy-related data as well as managing the heating, ventilation and air conditioning; lights; and window shutters.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {inbook}
}
Stokos, Konstantinos G.; Votyakov, Evgeny; Papanicolas, Costas N.
Heat Flux Distribution Estimation for CSP Applications Online
2021, visited: 01.05.2021.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@online{Stokos2021,
title = {Heat Flux Distribution Estimation for CSP Applications},
author = {Konstantinos G. Stokos and Evgeny Votyakov and Costas N. Papanicolas},
url = {https://www.authorea.com/doi/full/10.22541/au.162214719.98176484?commit=10947859b70bc3a0c6da7cc867d00014d2033f00},
doi = {10.22541/AU.162214719.98176484/V1},
year = {2021},
date = {2021-05-01},
urldate = {2021-05-01},
journal = {Authorea Preprints},
publisher = {Authorea},
abstract = {In this paper the concept of a new method for the estimation of the heat flux distribution and the total power in CSP applications is presented. This method requires appropriate analysis of the temperature evolution on a target, or directly on a receiver. A 3-D thermal conduction model with boundary conditions to take into account the convection and radiation losses has been developed. A parametric analysis was performed and we checked how the physical parameters affect the applicability of the method. Having proven numerically the potential of this method, it was experimentally implemented in the central tower CSP plant of The Cyprus Institute at PROTEAS facilities successfully. The experience gained from the numerical and experimental application of this method is discussed.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {online}
}
Deligiorgi, Marissia; Thravalou, Stavroula; Alexandrou, Kristis; Artopoulos, George
Data-Driven Integrated Practices For The Study And Protection Of Built Heritage Proceedings
CICOP, no. 2, 2021.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@proceedings{Deligiorgi2021,
title = {Data-Driven Integrated Practices For The Study And Protection Of Built Heritage},
author = {Marissia Deligiorgi and Stavroula Thravalou and Kristis Alexandrou and George Artopoulos},
url = {https://repository.cyi.ac.cy/handle/CyI/946},
year = {2021},
date = {2021-09-01},
urldate = {2021-09-01},
booktitle = {5th Biennial of Architectural and Urban Restoration},
number = {2},
publisher = {CICOP},
abstract = {ENI-CBC-MED Framework B.4.3. (2014-2020) & RIF INTEGRATED/0918/0034},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {proceedings}
}
Thravalou, Stavroula; Alexandrou, Kristis; Artopoulos, George
An integrated H-BIM approach for energy retrofit of built heritage Proceedings
Munich, 2021.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@proceedings{Stavroula2021,
title = {An integrated H-BIM approach for energy retrofit of built heritage},
author = {Stavroula Thravalou and Kristis Alexandrou and George Artopoulos},
url = {https://repository.cyi.ac.cy/bitstream/CyI/952/1/EEHB_2020_paper_10 %282%29.pdf},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {4th International Conference on Energy Efficiency in Historic Buildings},
address = {Munich},
abstract = {1. INTRODUCTION The latest Green Deal policy, released by the EU, prioritises energy efficiency in the building sector and highlights the importance of digitalisation of the building retrofitting process [1]. Historic buildings are usually excluded from legislation regarding minimum energy performance requirements, yet there is a great potential of energy consumption and greenhouse gas emission reductions thought the energy retrofit of the particular building stock [2]. Over the last decades, numerous guidelines and methodologies have been developed, outlining the procedure of decision-making for historic buildings refurbishment [3]. The stages of the process that are typically outlined in literature are: building survey and analysis including historical significance assessment, indoor environmental monitoring, energy auditing and dynamic simulation. Energy retrofits are often described in the literature as an act of balancing multiple criteria, among which conservation and energy consumption prevail. The criterion of economic viability is emerging, yet, the accessibility to funds is not covered by most methodology approaches, omitting a decisive factor in the implementation of the project. Building Information Modelling (BIM) is an emerging and promising building asset management technology, able to integrate a broad spectrum of building information, such as object attributes and construction processes, that take place from the building's planning stage to its demolition. BIM supports a holistic modelling and analysis process by simultaneously assigning additional dimensions of information to the model objects, i.e., cost (4D), time (5D) and energy performance results (6D) [4]. The centralised digital platform of information management offered by native BIM software, ensures the minimization of duplicate modelling processes, provides a workflow less sensitive to human errors and eliminates accidental information neglection during the entire building development [4]. Despite the comparative advantages of BIM, its application for heritage refurbishments (HBIM) is rare. This is mainly attributed to the emerging complexities and the absence of standardised processes, namely, the scan-to-BIM intensive modelling process, insufficient software interoperability with third party numerical simulation engines and the inadequate data exchange between native BIM software [5]. Moreover, the lack of sufficient geometrical, historical and conservation state documentation data complicates the modelling and alphanumerical data collection for heritage buildings, since most of the heritage objects' geometry and data complexity impede standardisation and automation [6]. In order to tackle the challenges of an integrated H-BIM approach, the research project "BIM for Energy Efficiency in the Public sector" (BEEP) was launched in 2019, under the framework of ENI CBC MED [7]. BEEP main objective is to create a comprehensive methodology for Energy Efficiency Heritage BIM (EE},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {proceedings}
}
Dong, Bing; Markovic, Romana; Carlucci, Salvatore
The 1st ACM International Workshop on Big Data and Machine Learning for Smart Buildings and Cities Proceedings
Association for Computing Machinery, Coimbra, Portugal, 2021, ISBN: 9781450391146.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@proceedings{10.1145/3486611.3491139,
title = {The 1st ACM International Workshop on Big Data and Machine Learning for Smart Buildings and Cities},
author = {Bing Dong and Romana Markovic and Salvatore Carlucci},
url = {https://doi.org/10.1145/3486611.3491139},
doi = {10.1145/3486611.3491139},
isbn = {9781450391146},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
booktitle = {Proceedings of the 8th ACM International Conference on Systems for Energy-Efficient Buildings, Cities, and Transportation},
pages = {338–340},
publisher = {Association for Computing Machinery},
address = {Coimbra, Portugal},
series = {BuildSys '21},
abstract = {The proliferation of urban sensing, IoT, and big data in buildings, cities, and urban areas provides unprecedented opportunities for a deeper understanding of occupant behavior, transportation, and energy and water usage patterns. However, utilizing the existing data sources and modeling methods in building science to model urban scale occupant behaviors can be pretty challenging. Therefore, technological progress is needed to unlock its full potential. In order to fulfill the latter task, this workshop focuses on the methodologies for big urban and building data collection, analytics, modeling, and real-world technology deployment. The workshop aims to open discussion on the current challenges of big data in smart buildings and cities.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {proceedings}
}
Friedrich-Ebert-Stiftung,; Centre, PRIO Cyprus
Eastern Mediterranean Natural Gas and the Energy Future Technical Report
2021.
BibTeX | Tags: Energy Planning & Analysis
@techreport{friedrich-ebert-stiftung_eastern_2021,
title = {Eastern Mediterranean Natural Gas and the Energy Future},
author = {Friedrich-Ebert-Stiftung and PRIO Cyprus Centre},
year = {2021},
date = {2021-10-01},
urldate = {2021-10-01},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {techreport}
}
G., Lafortune; M., Cortés Puch; Mosnier A., Fuller G.; Diaz M., Riccaboni A.; A., Kloke-Lesch; Zachariadis, Theodoros; E., Carli; A., Oger
Europe Sustainable Development Report 2021: Transforming the European Union to achieve the Sustainable Development Goals Technical Report
2021.
Links | BibTeX | Tags: Energy Planning & Analysis
@techreport{nokey,
title = {Europe Sustainable Development Report 2021: Transforming the European Union to achieve the Sustainable Development Goals},
author = {Lafortune G. and Cortés Puch M. and Mosnier A., Fuller G. and Diaz M., Riccaboni A. and Kloke-Lesch A. and Theodoros Zachariadis and Carli E. and Oger A.},
url = {https://www.sdgindex.org/esdr2021},
year = {2021},
date = {2021-08-03},
urldate = {2021-08-03},
howpublished = {SDSN, SDSN Europe and IEEP. France, Paris},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {techreport}
}
Zachariadis, Theodoros
2021.
Links | BibTeX | Tags: Energy Planning & Analysis
@workingpaper{nokey,
title = {On the Sustainability Performance of the European Union’s Economic Recovery Strategy – A Case Study with Lessons for Policymakers},
author = {Theodoros Zachariadis},
doi = {https://doi.org/10.21203/rs.3.rs-583734/v3},
year = {2021},
date = {2021-12-06},
urldate = {2022-01-13},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {workingpaper}
}
Sotiriou, Chryso; Zachariadis, Theodoros
A multi-objective Optimisation Approach to Explore Decarbonisation Pathways in a Dynamic Policy Context Working paper
2021, ISSN: 1556-5068.
Links | BibTeX | Tags: Energy Planning & Analysis
@workingpaper{Sotiriou2021,
title = {A multi-objective Optimisation Approach to Explore Decarbonisation Pathways in a Dynamic Policy Context},
author = {Chryso Sotiriou and Theodoros Zachariadis},
url = {https://papers.ssrn.com/abstract=3766455},
doi = {10.2139/SSRN.3766455},
issn = {1556-5068},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {SSRN Electronic Journal},
publisher = {Elsevier BV},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {workingpaper}
}
Zachariadis, Theodoros; Giannakis, Elias; Taliotis, Constantinos; Karmellos, Marios; Fylaktos, Nestor; Howells, Mark; Blyth, William; Hallegatte, Stephane
A Science-Policy Framework for a Green Economic Recovery After the COVID-19 Pandemic Working paper
2021.
Links | BibTeX | Tags: Energy Planning & Analysis
@workingpaper{Zachariadis2021,
title = {A Science-Policy Framework for a Green Economic Recovery After the COVID-19 Pandemic},
author = {Theodoros Zachariadis and Elias Giannakis and Constantinos Taliotis and Marios Karmellos and Nestor Fylaktos and Mark Howells and William Blyth and Stephane Hallegatte},
url = {https://documents.worldbank.org/en/publication/documents-reports/documentdetail/622001611844084014/building-back-better-in-practice-a-science-policy-framework-for-a-green-economic-recovery-after-covid-19},
doi = {10.21203/rs.3.rs-137855/v1},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {Policy Research Working Paper},
volume = {9528},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {workingpaper}
}
Blanco, Manuel J.; Milidonis, Kypros; Bonanos, Aristides M.
Updating the PSA sun position algorithm Journal Article
In: Solar Energy, vol. 212, pp. 339–341, 2020, ISSN: 0038092X.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Blanco2020,
title = {Updating the PSA sun position algorithm},
author = {Manuel J. Blanco and Kypros Milidonis and Aristides M. Bonanos},
doi = {10.1016/j.solener.2020.10.084},
issn = {0038092X},
year = {2020},
date = {2020-12-01},
journal = {Solar Energy},
volume = {212},
pages = {339--341},
publisher = {Elsevier Ltd},
abstract = {The algorithm for computing the solar vector of (Blanco et al., 2001) is revisited to improve its accuracy in the period 2020–2050, a period for which the algorithm was not initially designed. The resulting improved algorithm achieves a 25% decrease in the average error of the angular deviation with respect to the true solar vector (from a mean error of 11.81–8.78 arcsec), while simultaneously decreasing the range of variation of the error.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Azar, Elie; O'Brien, William; Carlucci, Salvatore; Hong, Tianzhen; Sonta, Andrew; Kim, Joyce; Andargie, Maedot S.; Abuimara, Tareq; Asmar, Mounir El; Jain, Rishee K.; Ouf, Mohamed M.; Tahmasebi, Farhang; Zhou, Jin
Simulation-aided occupant-centric building design: A critical review of tools, methods, and applications Journal Article
In: Energy and Buildings, vol. 224, no. 110292, pp. 1 – 21, 2020, ISSN: 03787788.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Azar2020,
title = {Simulation-aided occupant-centric building design: A critical review of tools, methods, and applications},
author = {Elie Azar and William O'Brien and Salvatore Carlucci and Tianzhen Hong and Andrew Sonta and Joyce Kim and Maedot S. Andargie and Tareq Abuimara and Mounir El Asmar and Rishee K. Jain and Mohamed M. Ouf and Farhang Tahmasebi and Jin Zhou},
doi = {10.1016/j.enbuild.2020.110292},
issn = {03787788},
year = {2020},
date = {2020-10-01},
journal = {Energy and Buildings},
volume = {224},
number = {110292},
pages = {1 -- 21},
publisher = {Elsevier Ltd},
abstract = {Occupants are active participants in their built environment, affecting its performance while simultaneously being affected by its design and indoor environmental conditions. With recent advances in computer modeling, simulation tools, and analysis techniques, topics such as human-building interactions and occupant behavior have gained significant interest in the literature given their premise of improving building design processes and operating strategies. In practice, the focus of occupant-centric literature has been mostly geared towards the latter (i.e., operation), leaving the implications on building design practices underexplored. This paper fills the gap by providing a critical review of existing studies applying computer-based modeling and simulation to guide occupant-centric building design. The reviewed papers are organized along four main themes, namely occupant-centric: (i) metrics of building performance, (ii) modeling and simulation approaches, (iii) design methods and applications, and (iv) supporting practices and mechanisms. Important barriers are identified for a more effective application of occupant-centric building design practices, including the limited consideration of metrics beyond energy efficiency (e.g., occupant well-being and space planning), the limited implementation and validation of the proposed methods, and the lack of integration of occupant behavior modeling in existing building performance simulation tools. Future research directions are discussed, covering large-scale international data collection efforts to move from generic assumptions about occupant behavior to specific/localized knowledge, improved metrics of measuring building performance, and improved industry practices, such as building codes, to promote an occupant-in-the-loop approach to the building design process.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Tovbin, Yu K.; Votyakov, Evgeny
Effect of Inert Gas Vibrations in Bound States on the Equilibrium of a Vapor-Liquid System Journal Article
In: Russian Journal of Physical Chemistry A 2020 94:9, vol. 94, no. 9, pp. 1952–1956, 2020, ISSN: 1531-863X.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Tovbin2020,
title = {Effect of Inert Gas Vibrations in Bound States on the Equilibrium of a Vapor-Liquid System},
author = {Yu K. Tovbin and Evgeny Votyakov},
url = {https://link.springer.com/article/10.1134/S0036024420090290},
doi = {10.1134/S0036024420090290},
issn = {1531-863X},
year = {2020},
date = {2020-09-01},
journal = {Russian Journal of Physical Chemistry A 2020 94:9},
volume = {94},
number = {9},
pages = {1952--1956},
publisher = {Springer},
abstract = {The effect the vibrational motion of inert gas atoms in the bound states at an arbitrary density of a vapor–liquid system has on the equilibrium concentration dependence of the chemical potential on density is considered for the first time. Both the potential energy of interaction between atoms and their vibrations in the bound states, starting from an isolated dimer to a dense phase, are considered. Calculations are made using the lattice gas model (LGM) for a one-dimensional fluid. Spatial atomic distributions are described in a quasi-chemical approximation. Local frequencies of atoms are calculated in a quasi-dimer model of vibrational motion. At the same time, the translational motion of atoms when they move to neighboring vacant cells are considered. The calculations are made in two versions of the theory: discrete and continuum. The latter reflects the motion of the center of mass inside the cells into which the entire volume is partitioned in the LGM. It is found that allowing for the vibrations of atoms in the bound states at a fixed density of the system shifts the chemical potential to lower values.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Bonanos, Aristides M.; Montenon, Alaric C.; Blanco, Manuel J.
Estimation of mean field reflectance in CST applications Journal Article
In: Solar Energy, vol. 208, pp. 1031–1038, 2020, ISSN: 0038092X.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Bonanos2020,
title = {Estimation of mean field reflectance in CST applications},
author = {Aristides M. Bonanos and Alaric C. Montenon and Manuel J. Blanco},
doi = {10.1016/j.solener.2020.08.073},
issn = {0038092X},
year = {2020},
date = {2020-09-01},
journal = {Solar Energy},
volume = {208},
pages = {1031--1038},
publisher = {Elsevier Ltd},
abstract = {The efficient and productive operation of a Concentrating Solar Thermal (CST) plant depends upon knowledge of the mean reflectance of the solar collector field, as the levelized cost of electricity has a one-to-one ratio with reflector optical performance. Considering the size of such collector fields, a continuous detailed survey of the whole field is not a practical proposition. This paper presents a statistical approach to measuring mean field reflectance by sampling only a subset of the field reflectors. We find that three samples are sufficient for evaluating the mean reflectance of a single facet, and that the locations sampled within the facet do not impact the estimate of the mean. Further, for any collection of facets behaving as a cluster, again sampling three facets is sufficient to yield an estimate of the mean reflectance of the cluster. These sample numbers hold for an error of 2.5% at 95% confidence; different error or confidence intervals will affect the sample numbers required. The results are obtained from studying the behavior of both a heliostat and a linear Fresnel collector field. A blueprint for large CST collector fields is derived.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Grigoriev, Victor; Milidonis, Kypros; Blanco, Manuel J.
Sun tracking by heliostats with arbitrary orientation of primary and secondary axes Journal Article
In: Solar Energy, vol. 207, pp. 1384–1389, 2020, ISSN: 0038092X.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Grigoriev2020,
title = {Sun tracking by heliostats with arbitrary orientation of primary and secondary axes},
author = {Victor Grigoriev and Kypros Milidonis and Manuel J. Blanco},
doi = {10.1016/j.solener.2020.07.086},
issn = {0038092X},
year = {2020},
date = {2020-09-01},
journal = {Solar Energy},
volume = {207},
pages = {1384--1389},
publisher = {Elsevier Ltd},
abstract = {The tracking of heliostats with arbitrary orientation of the primary and secondary axes is considered, and the explicit formulas are derived to find the tracking angles for a given position of the sun. It is shown that the inverse kinematics problem leads to a quadratic equation and has two solutions in general case. The solutions can be obtained in vector, matrix or quaternionic form. The advantages of the particular forms and possible applications are discussed. The corrections due to offset between tracking axes and mirror facets are also considered. The paper is accompanied with a Python library, which shows how to implement the tracking algorithms, and an interactive Jupyter notebook.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Dimitriou, Stella; Kyprianou, Ioanna; Papanicolas, Costas N.; Serghides, Despina
A new approach in the refurbishment of the office buildings–from standard to alternative nearly zero energy buildings Journal Article
In: International Journal of Sustainable Energy, vol. 39, no. 8, pp. 761–778, 2020, ISSN: 1478646X.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Dimitriou2020,
title = {A new approach in the refurbishment of the office buildings–from standard to alternative nearly zero energy buildings},
author = {Stella Dimitriou and Ioanna Kyprianou and Costas N. Papanicolas and Despina Serghides},
doi = {10.1080/14786451.2020.1749629},
issn = {1478646X},
year = {2020},
date = {2020-09-01},
journal = {International Journal of Sustainable Energy},
volume = {39},
number = {8},
pages = {761--778},
publisher = {Taylor and Francis Ltd.},
abstract = {The government of Cyprus has developed packages addressing the energy performance of non-residential buildings, in order to achieve the national energy reduction objectives. Currently, Decree 366/2014 is in force, defining the requirements for a building to qualify as a nearly Zero Energy Building (nΖΕΒ). However, this falls short of addressing sufficiently the high cooling energy demand of buildings in Cyprus. This paper examines the energy and economic viability of various refurbishment scenarios by considering a public office building in the city of Limassol as a case study. The energy performance of the building was analysed first for its current state and also according to nZEB standards. In addition, a set of supplementary measures was examined, to develop a cost-effective alternative nZEB energy refurbishment model. Based on the results, the existing legislation, defining an nZEB is reconsidered prompting a proactive discussion towards the improvement of the current energy regulating Directives.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Votyakov, Evgeny; Tovbin, Yu K.
The Continuum Quasichemical Approximation in Vapor–Liquid Systems Journal Article
In: Russian Journal of Physical Chemistry A 2020 94:8, vol. 94, no. 8, pp. 1732–1737, 2020, ISSN: 1531-863X.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Votyakov2020,
title = {The Continuum Quasichemical Approximation in Vapor–Liquid Systems},
author = {Evgeny Votyakov and Yu K. Tovbin},
url = {https://link.springer.com/article/10.1134/S0036024420080324},
doi = {10.1134/S0036024420080324},
issn = {1531-863X},
year = {2020},
date = {2020-08-01},
journal = {Russian Journal of Physical Chemistry A 2020 94:8},
volume = {94},
number = {8},
pages = {1732--1737},
publisher = {Springer},
abstract = {The continuum quasichemical approximation is used to improve the accuracy of describing molecular distributions in a vapor–liquid system. It considers displacements of the molecular center of mass from the center of a cell within the lattice gas model. It also allows for (as in its discrete variant) direct correlations of interacting molecules. The probability density of a molecule being inside the cell is used as a continuous function of its coordinate. An algorithm for solving a system of integral equations is developed with respect to the pair distribution function. The effect the continuum description of the particle distribution has on the concentration dependences of the main thermodynamic functions is investigated. The approach is shown to explain the concentration dependence of the parameter of effective lateral interaction.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Giannakis, Elias; Serghides, Despina; Dimitriou, Stella; Zittis, George
Land transport CO2 emissions and climate change: evidence from Cyprus Journal Article
In: International Journal of Sustainable Energy, vol. 39, no. 7, pp. 634–647, 2020, ISSN: 1478646X.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Giannakis2020,
title = {Land transport CO2 emissions and climate change: evidence from Cyprus},
author = {Elias Giannakis and Despina Serghides and Stella Dimitriou and George Zittis},
doi = {10.1080/14786451.2020.1743704},
issn = {1478646X},
year = {2020},
date = {2020-08-01},
journal = {International Journal of Sustainable Energy},
volume = {39},
number = {7},
pages = {634--647},
publisher = {Taylor and Francis Ltd.},
abstract = {The land transport sector is one of the major emitters of CO2 and one of the hardest sectors to decarbonise. This study employs an environmentally-extended input-output model to conduct an economy-wide assessment of CO2 emissions in Cyprus, associated with a 22% increase in the final demand for the output of the sector by 2030. Model results indicate that the land transport sector creates the third highest (direct and indirect) CO2 emissions within Cyprus economy; for every 1 million euro increase in the final demand of the sector's services and products, 407 additional tons of CO2 are emitted. Considering that temperature in Cyprus is projected to increase by up to 4.5–5°C by the end of the century, our findings highlight the importance of the land transport sector in the transition of Cyprus to a low-carbon economy and the urgency of implementing in-sector cost-effective decarbonisation strategies.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Taliotis, Constantinos; Fylaktos, Nestor; Partasides, George; Gardumi, Francesco; Sridharan, Vignesh; Karmellos, Marios; Papanicolas, Costas N.
The Effect of Electric Vehicle Deployment on Renewable Electricity Generation in an Isolated Grid System: The Case Study of Cyprus Journal Article
In: Frontiers in Energy Research, vol. 8, pp. 205, 2020, ISSN: 2296598X.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@article{Taliotis2020a,
title = {The Effect of Electric Vehicle Deployment on Renewable Electricity Generation in an Isolated Grid System: The Case Study of Cyprus},
author = {Constantinos Taliotis and Nestor Fylaktos and George Partasides and Francesco Gardumi and Vignesh Sridharan and Marios Karmellos and Costas N. Papanicolas},
url = {https://www.frontiersin.org/article/10.3389/fenrg.2020.00205/full},
doi = {10.3389/fenrg.2020.00205},
issn = {2296598X},
year = {2020},
date = {2020-08-01},
journal = {Frontiers in Energy Research},
volume = {8},
pages = {205},
publisher = {Frontiers Media S.A.},
abstract = {Decarbonisation of national economies to mitigate climate change requires transformation of the entire energy system. Investments in renewable energy technologies in the electricity supply system are increasing, but substantial effort is called for in other sectors, such as transport. While European Union member states have submitted their integrated National Energy and Climate Plans, this paper focuses on partial electrification of the transport sector as a measure to reduce carbon dioxide emissions in the isolated grid system of Cyprus in a cost-effective manner. The present work assesses the impact of electric vehicle deployment on the share of renewable electricity generation, electricity costs and carbon dioxide emissions. Quantification of these aspects is provided with an outlook until 2035. A cost-optimisation model (OSeMOSYS) is used that takes into account the electricity supply, road transport, and heating and cooling sectors. Smart charging option is also evaluated as a possibility.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {article}
}
O'Brien, William; Wagner, Andreas; Schweiker, Marcel; Mahdavi, Ardeshir; Day, Julia; Kjærgaard, Mikkel Baun; Carlucci, Salvatore; Dong, Bing; Tahmasebi, Farhang; Yan, Da; Hong, Tianzhen; Gunay, H. Burak; Nagy, Zoltan; Miller, Clayton; Berger, Christiane
Introducing IEA EBC annex 79: Key challenges and opportunities in the field of occupant-centric building design and operation Journal Article
In: Building and Environment, vol. 178, no. 106738, pp. 1 – 15, 2020, ISSN: 03601323.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{OBrien2020,
title = {Introducing IEA EBC annex 79: Key challenges and opportunities in the field of occupant-centric building design and operation},
author = {William O'Brien and Andreas Wagner and Marcel Schweiker and Ardeshir Mahdavi and Julia Day and Mikkel Baun Kjærgaard and Salvatore Carlucci and Bing Dong and Farhang Tahmasebi and Da Yan and Tianzhen Hong and H. Burak Gunay and Zoltan Nagy and Clayton Miller and Christiane Berger},
doi = {10.1016/j.buildenv.2020.106738},
issn = {03601323},
year = {2020},
date = {2020-07-01},
journal = {Building and Environment},
volume = {178},
number = {106738},
pages = {1 -- 15},
publisher = {Elsevier Ltd},
abstract = {Despite the fact that buildings are designed for occupants in principle, evidence suggests buildings are often uncomfortable compared to the requirements of standards; difficult to control by occupants; and, operated inefficiently with regards to occupants' preferences and presence. Meanwhile, practitioners –architects, engineers, technology companies, building managers and operators, and policymakers – lack the knowledge, tools, and precedent to design and operate buildings optimally considering the complex and diverse nature of occupants. Building on the success of IEA EBC Annex 66 (“Definition and simulation of occupant behavior in buildings”; 2013–2017), a follow-up IEA EBC Annex 79 (“Occupant-centric building design and operation”; 2018–2023) has been developed to address gaps in knowledge, practice, and technology. Annex 79 involves international researchers from diverse disciplines like engineering, architecture, computer science, psychology, and sociology. Annex 79 and this review paper have four main areas of focus: (1) multi-domain environmental exposure, building interfaces, and human behavior; (2) data-driven occupant modeling strategies and digital tools; (3) occupant-centric building design; and (4) occupant-centric building operation. The objective of this paper is to succinctly report on the leading research of the above topics and articulate the most pressing research needs – planned to be addressed by Annex 79 and beyond.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Schweiker, Marcel; Ampatzi, Eleni; Andargie, Maedot S.; Andersen, Rune Korsholm; Azar, Elie; Barthelmes, Verena M.; Berger, Christiane; Bourikas, Leonidas; Carlucci, Salvatore; Chinazzo, Giorgia; Edappilly, Lakshmi Prabha; Favero, Matteo; Gauthier, Stephanie; Jamrozik, Anja; Kane, Michael; Mahdavi, Ardeshir; Piselli, Cristina; Pisello, Anna Laura; Roetzel, Astrid; Rysanek, Adam; Sharma, Kunind; Zhang, Shengbo
Review of multi‐domain approaches to indoor environmental perception and behaviour Journal Article
In: Building and Environment, vol. 176, no. 106804, pp. 1 – 25, 2020, ISSN: 03601323.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Schweiker2020,
title = {Review of multi‐domain approaches to indoor environmental perception and behaviour},
author = {Marcel Schweiker and Eleni Ampatzi and Maedot S. Andargie and Rune Korsholm Andersen and Elie Azar and Verena M. Barthelmes and Christiane Berger and Leonidas Bourikas and Salvatore Carlucci and Giorgia Chinazzo and Lakshmi Prabha Edappilly and Matteo Favero and Stephanie Gauthier and Anja Jamrozik and Michael Kane and Ardeshir Mahdavi and Cristina Piselli and Anna Laura Pisello and Astrid Roetzel and Adam Rysanek and Kunind Sharma and Shengbo Zhang},
doi = {10.1016/j.buildenv.2020.106804},
issn = {03601323},
year = {2020},
date = {2020-06-01},
journal = {Building and Environment},
volume = {176},
number = {106804},
pages = {1 -- 25},
publisher = {Elsevier Ltd},
abstract = {Building occupants are continuously exposed to multiple indoor environmental stimuli, including thermal, visual, acoustic, and air quality related factors. Moreover, personal and contextual aspects can be regarded as additional domains influencing occupants' perception and behaviour. The scientific literature in this area typically deals with these multiple stimuli in isolation. In contrast to single-domain research, multi-domain research analyses at least two different domains, for example, visual and thermal. The relatively few literature reviews that have considered multi-domain approaches to indoor-environmental perception and behaviour covered only a few dozen articles each. The present contribution addresses this paucity by reviewing 219 scientific papers on interactions and cross-domain effects that influence occupants' indoor environmental perception and behaviour. The objective of the present review is to highlight motivational backgrounds, key methodologies, and major findings of multi-domain investigations of human perception and behaviour in indoor environments. The in-depth review of these papers provides not only an overview of the state of the art, but also contributes to the identification of existing knowledge gaps in this area and the corresponding need for future research. In particular, many studies use “convenience” variables and samples, there is often a lack of theoretical foundation to studies, and there is little research linking perception to action.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Kjærgaard, Mikkel Baun; Ardakanian, Omid; Carlucci, Salvatore; Dong, Bing; Firth, Steven K.; Gao, Nan; Huebner, Gesche Margarethe; Mahdavi, Ardeshir; Rahaman, Mohammad Saiedur; Salim, Flora D.; Sangogboye, Fisayo Caleb; Schwee, Jens Hjort; Wolosiuk, Dawid; Zhu, Yimin
Current practices and infrastructure for open data based research on occupant-centric design and operation of buildings Journal Article
In: Building and Environment, vol. 177, no. 106848, pp. 1 – 13, 2020, ISSN: 03601323.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Kjærgaard2020,
title = {Current practices and infrastructure for open data based research on occupant-centric design and operation of buildings},
author = {Mikkel Baun Kjærgaard and Omid Ardakanian and Salvatore Carlucci and Bing Dong and Steven K. Firth and Nan Gao and Gesche Margarethe Huebner and Ardeshir Mahdavi and Mohammad Saiedur Rahaman and Flora D. Salim and Fisayo Caleb Sangogboye and Jens Hjort Schwee and Dawid Wolosiuk and Yimin Zhu},
doi = {10.1016/j.buildenv.2020.106848},
issn = {03601323},
year = {2020},
date = {2020-06-01},
journal = {Building and Environment},
volume = {177},
number = {106848},
pages = {1 -- 13},
publisher = {Elsevier Ltd},
abstract = {Many new tools for improving the design and operation of buildings try to realize the potential of big data. In particular, data is an important element for occupant-centric design and operation as occupants' presence and actions are affected by a high degree of uncertainty and, hence, are hard to model in general. For such research, data handling is an important challenge, and following an open science paradigm based on open data can increase efficiency and transparency of scientific work. This article reviews current practices and infrastructure for open data-driven research on occupant-centric design and operation of buildings. In particular, it covers related work on open data in general and for the built environment in particular, presents survey results for existing scientific practices, reviews technical solutions for handling data and metadata, discusses ethics and privacy protection and analyses principles for the sharing of open data. In summary, this study establishes the status quo and presents an outlook on future work for methods and infrastructures to support the open data community within the built environment.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Taliotis, Constantinos; Giannakis, Elias; Karmellos, Marios; Fylaktos, Nestor; Zachariadis, Theodoros
Estimating the economy-wide impacts of energy policies in Cyprus Journal Article
In: Energy Strategy Reviews, vol. 29, pp. 100495, 2020, ISSN: 2211467X.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@article{Taliotis2020,
title = {Estimating the economy-wide impacts of energy policies in Cyprus},
author = {Constantinos Taliotis and Elias Giannakis and Marios Karmellos and Nestor Fylaktos and Theodoros Zachariadis},
doi = {10.1016/j.esr.2020.100495},
issn = {2211467X},
year = {2020},
date = {2020-05-01},
journal = {Energy Strategy Reviews},
volume = {29},
pages = {100495},
publisher = {Elsevier Ltd},
abstract = {Decarbonisation of the global economy is necessary to achieve the climate targets set by the Paris Agreement at COP21. Significant investments are required in low-carbon technologies on the supply and demand side of energy systems; the scale of these may pose challenges to national economies. In this paper, an energy forecast model, a cost-optimisation model and an input-output model are combined to conduct an economy-wide assessment of policy pathways for energy transition in Cyprus. The results of the study indicate that a scenario with additional energy efficiency measures and a modal shift in the transport sector can reduce final energy consumption by 10% as compared to a reference case in 2030. The macroeconomic assessment shows that the measures have a moderate but positive effect on economic growth. The construction, metal products and transportation sectors are those mainly benefiting in terms of economic output generation, while the largest negative effects are observed in the energy sector. Our findings highlight the importance of targeted investments to ensure a positive impact of energy policies on the broader economy.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {article}
}
Nitter, Therese B.; Grande, Morten S.; Svendsen, Kristin V. H.; Jørgensen, Rikke B.; Carlucci, Salvatore; Cao, Guangyu
In: Environment International, vol. 138, 2020, ISSN: 18736750.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Nitter2020,
title = {Can CO2 sensors in the ventilation system of a pool facility help reduce the variability in the trihalomethane concentration observed in indoor air?},
author = {Therese B. Nitter and Morten S. Grande and Kristin V. H. Svendsen and Rikke B. Jørgensen and Salvatore Carlucci and Guangyu Cao},
doi = {10.1016/j.envint.2020.105665},
issn = {18736750},
year = {2020},
date = {2020-05-01},
journal = {Environment International},
volume = {138},
publisher = {Elsevier Ltd},
abstract = {Volatile and hazardous compounds are formed during the chlorination of pool water. Monitoring components in the air, such as the four trihalomethanes; chloroform, dichlorobromomethane, dibromochloromethane and bromoform (tTHM), is challenging. Carbon dioxide (CO2) sensors are used for controlling air quality in different buildings and can be installed in ventilation systems for continuous surveillance and monitoring purposes. However, such sensors are not used in indoor swimming facilities. In this study, samples of tTHM and CO2 were collected and analysed, along with other air and water quality parameters such as combined chlorine, to evaluate whether CO2 sensors could be used to explain the observed variability in the tTHM concentration in an indoor swimming facility and thereby reduce the exposure of individuals utilising the pool to tTHM. Random intercept models were built for the tTHM and CO2 concentrations, respectively, and the results show that the relationships between combined chlorine in the water, CO2 in the air and number of occupants explain 52% of the variability in tTHM. The correlation between occupancy and CO2 concentration ($rho$ = 0.65, p ≤ 0.01) suggests that CO2 sensors should be used so that the air supply corresponds to the demand of the users.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Carlucci, Salvatore; Simone, Marilena De; Firth, Steven K.; Kjærgaard, Mikkel Baun; Markovic, Romana; Rahaman, Mohammad Saiedur; Annaqeeb, Masab Khalid; Biandrate, Silvia; Das, Anooshmita; Dziedzic, Jakub Wladyslaw; Fajilla, Gianmarco; Favero, Matteo; Ferrando, Martina; Hahn, Jakob; Han, Mengjie; Peng, Yuzhen; Salim, Flora; Schlüter, Arno; Treeck, Christoph
Modeling occupant behavior in buildings Journal Article
In: Building and Environment, vol. 174, 2020, ISSN: 03601323.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Carlucci2020,
title = {Modeling occupant behavior in buildings},
author = {Salvatore Carlucci and Marilena De Simone and Steven K. Firth and Mikkel Baun Kjærgaard and Romana Markovic and Mohammad Saiedur Rahaman and Masab Khalid Annaqeeb and Silvia Biandrate and Anooshmita Das and Jakub Wladyslaw Dziedzic and Gianmarco Fajilla and Matteo Favero and Martina Ferrando and Jakob Hahn and Mengjie Han and Yuzhen Peng and Flora Salim and Arno Schlüter and Christoph Treeck},
doi = {10.1016/j.buildenv.2020.106768},
issn = {03601323},
year = {2020},
date = {2020-05-01},
journal = {Building and Environment},
volume = {174},
publisher = {Elsevier Ltd},
abstract = {In the last four decades several methods have been used to model occupants' presence and actions (OPA) in buildings according to different purposes, available computational power, and technical solutions. This study reviews approaches, methods and key findings related to OPA modeling in buildings. An extensive database of related research documents is systematically constructed, and, using bibliometric analysis techniques, the scientific production and landscape are described. The initial literature screening identified more than 750 studies, out of which 278 publications were selected. They provide an overarching view of the development of OPA modeling methods. The research field has evolved from longitudinal collaborative efforts since the late 1970s and, so far, covers diverse building typologies mostly concentrated in a few climate zones. The modeling approaches in the selected literature are grouped into three categories (rule-based models, stochastic OPA modeling, and data-driven methods) for modeling occupancy-related target functions and a set of occupants' actions (window, solar shading, electric lighting, thermostat adjustment, clothing adjustment and appliance use). The explanatory modeling is conventionally based on the model-based paradigm where occupant behavior is assumed to be stochastic, while the data-driven paradigm has found wide applications for the predictive modeling of OPA, applicable to control systems. The lack of established standard evaluation protocols was identified as a scientifically important yet rarely addressed research question. In addition, machine learning and deep learning are emerging in recent years as promising methods to address OPA modeling in real-world applications.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Kyprianou, Ioanna; Serghides, Despina
Dealing with energy poverty in Cyprus–an overview Journal Article
In: International Journal of Sustainable Energy, vol. 39, no. 4, pp. 308–320, 2020, ISSN: 1478646X.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Kyprianou2020a,
title = {Dealing with energy poverty in Cyprus–an overview},
author = {Ioanna Kyprianou and Despina Serghides},
doi = {10.1080/14786451.2019.1699560},
issn = {1478646X},
year = {2020},
date = {2020-04-01},
journal = {International Journal of Sustainable Energy},
volume = {39},
number = {4},
pages = {308--320},
publisher = {Taylor and Francis Ltd.},
abstract = {Energy poverty is the inability of a household to maintain basic energy services in the household, such as heating and cooling, due to unaffordability. This issue has been gaining public awareness since the financial crisis of 2008. Based on European-wide indicators, Cyprus demonstrates a high percentage of households with poor energy affordability. However, an in-depth investigation on energy poverty manifestations and measures has not been carried out. This paper aims to address this gap in knowledge, by outlining current measures associated with vulnerable consumers in Cyprus. Recommendations are made for the adoption of additional and/or complimentary action to effectively address energy poverty in Cyprus. Furthermore, a web-based survey collected demographic and economic information of dwellers, as well as technical characteristics of dwellings and perception of thermal comfort. Preliminary results indicate that approximately 40% of respondents reported spending up to a quarter of their net income towards energy bills.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Jowkar, Mina; Rijal, Hom B.; Brusey, James; Montazami, Azadeh; Carlucci, Salvatore; Lansdown, Terry C.
Comfort temperature and preferred adaptive behaviour in various classroom types in the UK higher learning environments Journal Article
In: Energy and Buildings, vol. 211, no. 109814, pp. 1 – 15, 2020, ISSN: 03787788.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Jowkar2020,
title = {Comfort temperature and preferred adaptive behaviour in various classroom types in the UK higher learning environments},
author = {Mina Jowkar and Hom B. Rijal and James Brusey and Azadeh Montazami and Salvatore Carlucci and Terry C. Lansdown},
doi = {10.1016/j.enbuild.2020.109814},
issn = {03787788},
year = {2020},
date = {2020-03-01},
journal = {Energy and Buildings},
volume = {211},
number = {109814},
pages = {1 -- 15},
publisher = {Elsevier Ltd},
abstract = {Maintaining the thermal comfort of occupants along with minimising the related energy consumption is necessary in educational buildings in the UK. Thermal comfort is particularly important in this context as it affects how well students learn in the classroom. This study aims to identify comfort temperature ranges in different classroom types, lecture rooms, studios and PC labs in UK higher learning environments. Overall, more than 3,000 university students in Coventry and Edinburgh were observed and surveyed simultaneously with the monitoring of environmental measurements under free-running, cooling and heating modes, in October and November 2017 and January to March 2018. Thermal comfort zones and comfort temperatures were identified in each classroom type under these three operation modes. The thermal comfort zone was shown to be significantly dependant on the operative temperature in the studios and PC labs. In terms of the students' priorities for adaptive behaviour inside the classrooms, students in the lecture rooms and PC labs with lower levels of freedom, preferred to restore their thermal comfort through personal adaptive behaviour. However, environmental behaviour was shown to be preferred in the studios where the occupants have a greater freedom level. Results indicate a higher level of physiological and psychological thermal adaptation for the occupants of the studios and PC labs compared to those in the lecture rooms. Consequently, the type of classroom and the students' freedom levels should be considered in environmental design of higher education buildings.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Delise, T.; Tizzoni, A. C.; Votyakov, Evgeny; Turchetti, Luca; Corsaro, N.; Sau, S.; Licoccia, S.
Modeling the Total Ternary Phase Diagram of NaNO3–KNO3–NaNO2 Using the Binary Subsystems Data Journal Article
In: International Journal of Thermophysics, vol. 41, no. 1, pp. 1 – 20, 2020, ISSN: 15729567.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Delise2020,
title = {Modeling the Total Ternary Phase Diagram of NaNO3–KNO3–NaNO2 Using the Binary Subsystems Data},
author = {T. Delise and A. C. Tizzoni and Evgeny Votyakov and Luca Turchetti and N. Corsaro and S. Sau and S. Licoccia},
url = {https://doi.org/10.1007/s10765-019-2577-2},
doi = {10.1007/s10765-019-2577-2},
issn = {15729567},
year = {2020},
date = {2020-01-01},
journal = {International Journal of Thermophysics},
volume = {41},
number = {1},
pages = {1 -- 20},
publisher = {Springer},
abstract = {When designing a concentrating solar power (CSP) system, selection of a proper heat transfer fluid (HTF) material is a key, especially when employed in parabolic trough CSP plants. In particular, the use of low melting mixtures as an alternative to the widely commonly used “solar salt” can increase the CSP manageably and, as a result, several innovative nitrite/nitrate mixtures have been proposed. However, very few thermodynamics data are available for these compounds, especially regarding ternary compositions. One of the most interesting low freezing mixture is prepared with sodium and potassium nitrate together with sodium nitrite. The aim of this work is to investigate the thermodynamics properties of this ternary system, starting from its binary subunits, studying the phase diagram of this compound both experimentally and by a regular solution model. At this purpose, the literature phase diagrams of the binary subsystem were simulated in order to obtain the fitting parameters necessary for the employed semi-predictive tool. Then, the ternary system was modeled and the results showed very good agreement with the experimental points. It is quite interesting to note that both the theoretical and experimental results showed a low melting zone presenting greater sodium nitrate molar fractions with respect to sodium nitrite than previously reported in literature. This would lead to a decrease in the HTF price and an improvement regarding the fluid toxicity.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Wang, Ye; Potter, Daniel; Asselineau, Charles Alexis; Corsi, Clotilde; Wagner, Michael; Caliot, Cyril; Piaud, Benjamin; Blanco, Manuel J.; Kim, Jin Soo; Pye, John
Verification of optical modelling of sunshape and surface slope error for concentrating solar power systems Journal Article
In: Solar Energy, vol. 195, pp. 461–474, 2020, ISSN: 0038092X.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Wang2020,
title = {Verification of optical modelling of sunshape and surface slope error for concentrating solar power systems},
author = {Ye Wang and Daniel Potter and Charles Alexis Asselineau and Clotilde Corsi and Michael Wagner and Cyril Caliot and Benjamin Piaud and Manuel J. Blanco and Jin Soo Kim and John Pye},
doi = {10.1016/j.solener.2019.11.035},
issn = {0038092X},
year = {2020},
date = {2020-01-01},
journal = {Solar Energy},
volume = {195},
pages = {461--474},
publisher = {Elsevier Ltd},
abstract = {Sunshape and reflector surface slope error distributions are significant elements in modelling the optical behaviour of a concentrating solar power system. Different optical modelling tools implement these elements with various approaches. Discrepancies can easily accumulate in simulations of a large optical system as a result of incorrect implementations. This study reviews and verifies the implementations of these two factors in six tools that are widely used for optical modelling in solar energy research: Tonatiuh, SolTrace, Tracer, Solstice, Heliosim and SolarPILOT. The review incorporates three rounds of tests. Firstly, basic tests examine each factor carefully in simplified on-axis reflector–target configurations (round ‘A'). Secondly, off-axis effects are introduced (round ‘B'). Thirdly, full heliostat field simulations are verified (round ‘C'). All of the test cases are simulated with each modelling tool, and results are compared. Discrepancies were observed due to approximations inherent in the cone optics (convolution) methods, incorrect implementation the of pillbox slope errors, different approaches to setting the circumsolar ratio for the Buie sunshape, and different approaches to the calculation of blocking and shading losses in some tools. All issues are discussed fully, and solutions to most issues were implemented within the scope of the present study. Some remaining issues are noted. The study highlights the importance of careful implementation of these aspects of optical modelling and contributes to an improvement in the quality of several widely-used tools.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Zachariadis, Theodoros; J.E., Milne; M.S, Andersen; H., Ashiabor (Ed.)
Economic Instruments for a Low-carbon Future. Critical Issues in Environmental Taxation Book
Edward Elgar Publishing, 2020, ISBN: 9781839109904.
Links | BibTeX | Tags: Energy Planning & Analysis
@book{nokey,
title = {Economic Instruments for a Low-carbon Future. Critical Issues in Environmental Taxation},
editor = {Theodoros Zachariadis and Milne J.E. and Andersen M.S and Ashiabor H. },
doi = {10.4337/9781839109911},
isbn = {9781839109904},
year = {2020},
date = {2020-09-01},
number = {XXII},
publisher = {Edward Elgar Publishing},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {book}
}
Drobinski, Philippe; Azzopardi, Brian; Allal, H Ben Janet; Bouchet, V; Civel, E; Creti, A; Duic, N; Fylaktos, Nestor; Mutale, J; Pariente-David, S; Ravetz, J; Taliotis, Constantinos
Energy transition in the Mediterranean Book Chapter
In: Cramer, W; Guiot, J; Marini, K (Ed.): MedECC: Climate and Environmental Change in the Mediterranean Basin – Current Situation and Risks for the Future. First Mediterranean Assessment Report, Union for the Mediterranean, Plan Bleu, UNEP/MAP, Marseille, France, 2020.
Links | BibTeX | Tags: Energy Planning & Analysis
@inbook{drobinski_energy_2020,
title = {Energy transition in the Mediterranean},
author = {Philippe Drobinski and Brian Azzopardi and H Ben Janet Allal and V Bouchet and E Civel and A Creti and N Duic and Nestor Fylaktos and J Mutale and S Pariente-David and J Ravetz and Constantinos Taliotis},
editor = {W Cramer and J Guiot and K Marini},
url = {https://www.medecc.org/wp-content/uploads/2020/11/MedECC_MAR1_3_3_Energy_transition_in_the_Mediterranean.pdf},
year = {2020},
date = {2020-11-01},
urldate = {2020-11-01},
booktitle = {MedECC: Climate and Environmental Change in the Mediterranean Basin – Current Situation and Risks for the Future. First Mediterranean Assessment Report},
publisher = {Union for the Mediterranean, Plan Bleu, UNEP/MAP},
address = {Marseille, France},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {inbook}
}
Zachariadis, Theodoros
Legislation or Economic Instruments for a Successful Environmental Policy? Book Chapter
In: Walker, T.; Sprung-Much, N.; Goubran, S. (Ed.): Environmental Policy: An Economic Perspective, pp. 33–47, John Wiley & Sons, Ltd, 2020, ISBN: 9781119402619.
Links | BibTeX | Tags: Energy Planning & Analysis
@inbook{Zachariadis2020,
title = {Legislation or Economic Instruments for a Successful Environmental Policy?},
author = {Theodoros Zachariadis},
editor = {T. Walker and N. Sprung-Much and S. Goubran},
doi = {10.1002/9781119402619.CH3},
isbn = {9781119402619},
year = {2020},
date = {2020-08-01},
urldate = {2020-08-01},
booktitle = {Environmental Policy: An Economic Perspective},
journal = {Environmental Policy},
pages = {33--47},
publisher = {John Wiley & Sons, Ltd},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {inbook}
}
Sotiriou, Chryso; Zachariadis, Theodoros
The importance of a carbon tax for timely and cost-effective decarbonisation – a case study from Cyprus Book Chapter
In: Economic Instruments for a Low-carbon Future. Critical Issues in Environmental Taxation XXII, pp. 141–156, Edward Elgar Publishing, 2020.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@inbook{Sotiriou2020,
title = {The importance of a carbon tax for timely and cost-effective decarbonisation – a case study from Cyprus},
author = {Chryso Sotiriou and Theodoros Zachariadis},
doi = {10.4337/9781839109911.00024},
year = {2020},
date = {2020-07-01},
urldate = {2020-07-01},
booktitle = {Economic Instruments for a Low-carbon Future. Critical Issues in Environmental Taxation XXII},
journal = {Economic Instruments for a Low-carbon Future},
pages = {141--156},
publisher = {Edward Elgar Publishing},
abstract = {łdots the perspective of a social planner, which means that costs and benefits are net of taxes and duties łdots For this purpose, we find that a carbon tax in the order of 120 Euros per tonne of łdots Marginal abatement cost curves and the quality of emission reductions: a case study on Brazil łdots},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {inbook}
}
Serghides, Despina; Dimitriou, Stella; Kyprianou, Ioanna
Paving the Way Towards Zero Energy Hospitals in the Mediterranean Region Book Chapter
In: Sayigh, A. (Ed.): Green Buildings and Renewable Energy. Innovative Renewable Energy, pp. 159–167, Springer, Cham, 2020, ISBN: Print ISBN 978-3-030-30840-7.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@inbook{Serghides2020a,
title = {Paving the Way Towards Zero Energy Hospitals in the Mediterranean Region},
author = {Despina Serghides and Stella Dimitriou and Ioanna Kyprianou},
editor = {A. Sayigh},
url = {https://link.springer.com/chapter/10.1007/978-3-030-30841-4_11},
doi = {10.1007/978-3-030-30841-4_11},
isbn = {Print ISBN 978-3-030-30840-7},
year = {2020},
date = {2020-01-01},
urldate = {2020-01-01},
booktitle = {Green Buildings and Renewable Energy. Innovative Renewable Energy},
pages = {159--167},
publisher = {Springer, Cham},
abstract = {Hospitals and clinics are considered as one of the most complex systems, as they host several energy intensive functions (HVAC under strict comfort conditions, high hot water demand, etc.) and need to be thoroughly studied in terms of their energy performance, so as to develop a nearly Zero Energy definition for healthcare facilities for the EU countries. By improving their energy performance will have a crucial impact in meeting the EU long-term goal (2050), which is to achieve a reduction of the CO2 emissions of 85% with respect the 1990 levels. Healthcare facilities in Cyprus are responsible for more than 8% of the total energy consumption in the tertiary sector, while being the third most energy intensive use after restaurants and shopping malls. In this paper, the energy profile of five (5) private hospitals/clinics will be presented. Shortcomings regarding their energy performance will be discussed and potential improvements will be proposed. The questionnaires used for the energy assessment of the buildings were developed under the ZenH Balkan Project, which is funded by the European Union. The ZenH Balkan project aims to facilitate the implementation of the Energy Performance of Buildings Directive (EPBD) by defining the characteristics and Standards for Zero Energy Hospitals in the South Balkan region. Thus, it will contribute towards improved energy efficiency in the building sector by producing benchmarks and design guidelines for Zero Energy Hospitals. It aspires to improve the technical capacity of professional groups and government officials towards the nearly zero energy buildings (nZEBs) notion. Selected hospital buildings will be investigated in depth and cost-effective studies will prepare them to seek financial tools for their implementation. The results obtained during the first phase of the Project in Cyprus, aiming at documenting the existing energy performance of healthcare facilities, demonstrated the high reliance of the facilities on electricity, mainly due to space cooling and the overall low incorporation of renewable energy systems for energy production.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {inbook}
}
Marakkos, Costas; Stokos, Konstantinos G.; Papanicolas, Costas N.
Proteas power cycle: A solar Rankine cycle for research and development Proceedings
American Institute of Physics Inc., vol. 2303, no. 1, 2020, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Marakkos2020,
title = {Proteas power cycle: A solar Rankine cycle for research and development},
author = {Costas Marakkos and Konstantinos G. Stokos and Costas N. Papanicolas},
url = {http://aip.scitation.org/doi/abs/10.1063/5.0028495},
doi = {10.1063/5.0028495},
issn = {15517616},
year = {2020},
date = {2020-12-01},
urldate = {2020-12-01},
booktitle = {AIP Conference Proceedings},
volume = {2303},
number = {1},
pages = {130005--1 -- 130005--9},
publisher = {American Institute of Physics Inc.},
abstract = {Preliminary tests of a solar Rankine cycle at the PROTEAS experimental CSP facility have been carried out for solar-thermal power inputs between 60 kW and 85 kW. These tests allowed for generating a data bank of performance recordings for the power-block molten-salt steam generator and superheater for mass flux values between 10.28 kg/m2.s and 14.59 kg/m2.s. The Rayleigh number range for the steam generator was between 16 x1012 and 27.4 x1012. The corresponding range for the superheater was between 1.7 x1012 and 1,94x1012. Subsequently, the design models were validated. The steam-generator model underpredicted the generator performance by up to 36%. On the other hand, the superheater model demonstrated a maximum discrepancy of 3.4% with respect to the measured thermal power output.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Georgiou, Marios C.; Bonanos, Aristides M.; Stokos, Konstantinos G.; Roussos, Constantinos C.; Stiliaris, Efstathios G.; Papanicolas, Costas N.
Operational experience of hot air preheating at the PROTEAS facility Proceedings
American Institute of Physics Inc., vol. 2303, no. 1, 2020, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Georgiou2020,
title = {Operational experience of hot air preheating at the PROTEAS facility},
author = {Marios C. Georgiou and Aristides M. Bonanos and Konstantinos G. Stokos and Constantinos C. Roussos and Efstathios G. Stiliaris and Costas N. Papanicolas},
url = {http://aip.scitation.org/doi/abs/10.1063/5.0029953},
doi = {10.1063/5.0029953},
issn = {15517616},
year = {2020},
date = {2020-12-01},
urldate = {2020-12-01},
booktitle = {AIP Conference Proceedings},
volume = {2303},
number = {1},
pages = {030016--1 -- 030016--9},
publisher = {American Institute of Physics Inc.},
abstract = {In this paper the operational experiences of hot air preheating of the molten salt transfer lines as implemented at the Platform for Research, Observation and TEchnological Applications in Solar energy (PROTEAS) in Cyprus are presented. The hot air preheating has been tested at the PROTEAS Facility over the last few years as a proof of concept against the Electrical Heat Tracing due to several operational difficulties observed during electrical preheating. The implementation of this concept has been initially demonstrated. Then based on the promising experimental results it was further explored and implemented as a hybrid concept operating with both electric heating and hot air preheating. The outcome of the experiments supports the proposed scheme of hybridization of pipe lines preheating. An optimization of the concept followed by the respective design and development will follow and research towards that direction includes refinement of the technique and study of its economics.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Bonanos, Aristides M.; Blanco, Manuel J.; Milidonis, Kypros
Characterization of mirror soiling in CSP applications Proceedings
American Institute of Physics Inc., vol. 2303, no. 1, 2020, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Bonanos2020a,
title = {Characterization of mirror soiling in CSP applications},
author = {Aristides M. Bonanos and Manuel J. Blanco and Kypros Milidonis},
url = {http://aip.scitation.org/doi/abs/10.1063/5.0028528},
doi = {10.1063/5.0028528},
issn = {15517616},
year = {2020},
date = {2020-12-01},
urldate = {2020-12-01},
booktitle = {AIP Conference Proceedings},
volume = {2303},
number = {1},
pages = {030007},
publisher = {American Institute of Physics Inc.},
abstract = {Daily reflectance measurements on mirrors used in CSP applications were obtained over a period of 4 months to monitor soiling as a function of meteorological and environmental parameters. The mirrors were placed at 45° increments from face down to face up, and the parameters monitored included temperature, relative humidity, wind speed, rainfall and particulate matter. In order to determine a relationship between the input parameters and the soiling, both multiple linear regression and artificial neural network models were employed. The feed-forward back-propagation neural network with two layers and 16 neurons per layer is the configuration that reaches the best predictive results without overfitting the data, reaching a correlation coefficient of 0.84, compared to a maximum correlation coefficient of 0.60 with the multiple linear regression allowing for quadratic interaction of terms. The model is used to predict the number of annual cleaning operations required for a CSP plant placed in a location with a similar climactic profile, in order to estimate the cleaning contribution to the annual operation and maintenance cost.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Serghides, Despina; Dimitriou, Stella; Kyprianou, Ioanna; Thravalou, Stavroula
Energy Performance of Healthcare Facilities in 3 Climatic Zones in Cyprus Proceedings
WREC2020, Lisbon, Portugal, 2020.
BibTeX | Tags: Sustainable Built Environment
@proceedings{nokey,
title = {Energy Performance of Healthcare Facilities in 3 Climatic Zones in Cyprus},
author = {Despina Serghides and Stella Dimitriou and Ioanna Kyprianou and Stavroula Thravalou},
year = {2020},
date = {2020-09-14},
urldate = {2020-09-14},
howpublished = {WREC2020, Lisbon, Portugal},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {proceedings}
}
Kyprianou, Ioanna; Serghides, Despina
Institute of Physics Publishing, vol. 410, no. 1, 2020, ISSN: 17551315.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@proceedings{Kyprianou2020,
title = {Challenges in regional approaches: Lessons from Energy Poverty research in a small scale European member state},
author = {Ioanna Kyprianou and Despina Serghides},
doi = {10.1088/1755-1315/410/1/012086},
issn = {17551315},
year = {2020},
date = {2020-01-01},
urldate = {2020-01-01},
booktitle = {IOP Conference Series: Earth and Environmental Science},
volume = {410},
number = {1},
pages = {1 -- 11},
publisher = {Institute of Physics Publishing},
abstract = {Energy poverty is an issue now widely recognised for its detrimental impacts and research in Europe has intensified over the last decade. Many different methodologies of examining the topic have surfaced, with a common one being based on regional-based practices. Open source data are extremely useful for such approaches, because they offer unlimited access to information. The Nomenclature of Territorial Units for Statistics (NUTS) is a framework for data collection on different geographic levels that provides different levels of statistical analysis for regions within a single country. It was set up in the 1970's by the European Union, and existing research work has already explored the valuable application of the NUTS system in certain areas. Nevertheless, the constraints of open source data (such as data based on NUTS regions), in reference to small scale member states, have not been exhaustively addressed. In this study the shortcomings of open source data are explored, by examining energy poverty in an area where the efficacy of the NUTS system is restricted. Cyprus is a member state in the European Union and is represented by a single NUTS category, for all levels of classification, unlike the majority of the rest. Data therefore exists only at the national level - something which contradicts the purpose of the different NUTS levels. In effect, for the case of Cyprus, this results in lack of differentiation among distinct climatic regions and disregarding the urban-rural dichotomy. It essentially renders this classification system inapt for Cyprus, while research activities become limited to the extent of data obtained through other means. Therefore, the study highlights the challenges researchers have to face when approaching a topic for Cyprus from a regional lens. To this end, geographical information systems software is used to observe a simplistic composite indicator of energy poverty in a medium-scale country (where NUTS is applicable), in relation to Cyprus. The effectiveness and potential impact of the outcomes in relation to public awareness, decision-making for policy makers and initiatives of local agents are examined and discussed. Ultimately, the study highlights that even when high quality indicators of energy poverty exist at the European Union level (Eurostat), under current circumstances they cannot be employed effectively to examine energy poverty regionally within Cyprus. Recommendations are proposed to overcome data access limitations in areas where popular open access databases are inadequate.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {proceedings}
}
Sridharan, Vignesh; Broad, Oliver; Shivakumar, Abhishek; Howells, Mark; Boehlert, Brent; Groves, David G.; Rogner, Holger; Taliotis, Constantinos; Neumann, James E.; Strzepek, Kenneth M.; Lempert, Robert; Joyce, Brian; Huber-Lee, Annette; Cervigni, Raffaello
Resilience of the Eastern African electricity sector to climate driven changes in hydropower generation Journal Article
In: Nature Communications, vol. 10, no. 1, pp. 1–9, 2019, ISSN: 20411723.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@article{Sridharan2019,
title = {Resilience of the Eastern African electricity sector to climate driven changes in hydropower generation},
author = {Vignesh Sridharan and Oliver Broad and Abhishek Shivakumar and Mark Howells and Brent Boehlert and David G. Groves and Holger Rogner and Constantinos Taliotis and James E. Neumann and Kenneth M. Strzepek and Robert Lempert and Brian Joyce and Annette Huber-Lee and Raffaello Cervigni},
url = {https://doi.org/10.1038/s41467-018-08275-7},
doi = {10.1038/s41467-018-08275-7},
issn = {20411723},
year = {2019},
date = {2019-12-01},
journal = {Nature Communications},
volume = {10},
number = {1},
pages = {1--9},
publisher = {Nature Publishing Group},
abstract = {Notwithstanding current heavy dependence on gas-fired electricity generation in the Eastern African Power Pool (EAPP), hydropower is expected to play an essential role in improving electricity access in the region. Expansion planning of electricity infrastructure is critical to support investment and maintaining balanced consumer electricity prices. Variations in water availability due to a changing climate could leave hydro infrastructure stranded or result in underutilization of available resources. In this study, we develop a framework consisting of long-term models for electricity supply and water systems management, to assess the vulnerability of potential expansion plans to the effects of climate change. We find that the most resilient EAPP rollout strategy corresponds to a plan optimised for a slightly wetter climate compared to historical trends. This study demonstrates that failing to climate-proof infrastructure investments can result in significant electricity price fluctuations in selected countries (Uganda & Tanzania) while others, such as Egypt, are less vulnerable.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {article}
}
Moazami, Amin; Carlucci, Salvatore; Nik, Vahid M.; Geving, Stig
Towards climate robust buildings: An innovative method for designing buildings with robust energy performance under climate change Journal Article
In: Energy and Buildings, vol. 202, pp. 109378, 2019, ISSN: 0378-7788.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Moazami2019a,
title = {Towards climate robust buildings: An innovative method for designing buildings with robust energy performance under climate change},
author = {Amin Moazami and Salvatore Carlucci and Vahid M. Nik and Stig Geving},
doi = {10.1016/J.ENBUILD.2019.109378},
issn = {0378-7788},
year = {2019},
date = {2019-11-01},
journal = {Energy and Buildings},
volume = {202},
pages = {109378},
publisher = {Elsevier},
abstract = {Neglecting extremes and designing buildings for the past or most likely weather conditions is not the best approach for the future. Robust design techniques can, however, be a viable option for tackling future challenges. The concept of robust design was first introduced by Taguchi in the 1940s. The result of the design process is a product that is insensitive to the effect of given sources of variability, even though the sources themselves are not eliminated. A robust design optimization (RDO) method is for the first time proposed in this paper, for supporting architects and engineers in the design of buildings with robust energy performance under climate change and extreme conditions. The simplicity and the low computational demand of the process underlies the feasibility and applicability of this method, which can be used at any stage of the design process. The results show that the performance of the optimum solution not only has a 81.5% lower variation (less sensitivity to climate uncertainty) but at the same time has a 14.4% lower mean energy use value compared with a solution that is compliant with a recent construction standard (ASHRAE 90.1-2016). Less sensitivity to climate uncertainty means greater robustness to climate change whilst maintaining high performance.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Bonanos, Aristides M.; Faka, Marina; Abate, Dante; Hermon, S.; Blanco, Manuel J.
Heliostat surface shape characterization for accurate flux prediction Journal Article
In: Renewable Energy, vol. 142, pp. 30–40, 2019, ISSN: 18790682.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Bonanos2019a,
title = {Heliostat surface shape characterization for accurate flux prediction},
author = {Aristides M. Bonanos and Marina Faka and Dante Abate and S. Hermon and Manuel J. Blanco},
doi = {10.1016/j.renene.2019.04.051},
issn = {18790682},
year = {2019},
date = {2019-11-01},
journal = {Renewable Energy},
volume = {142},
pages = {30--40},
publisher = {Elsevier Ltd},
abstract = {The performance of a heliostat field is directly related to the optical quality of the mirror surfaces used to reflect solar radiation onto the receiver. In this paper, two methods are used to characterize the actual shape of the surface of a heliostat, using laser scanning and photogrammetry. The accuracy of each technique for the intended purpose is reported, while the methodology for analyzing the resulting point clouds is presented. The shape of the reflecting surface is reconstructed from the point clouds generated by each one of the methods used to characterize the actual shape of the heliostat surface. The Tonatiuh ray tracing program is used to compare the flux distributions of the heliostat obtained in this way, with the intended ideal parabolic shape of the heliostat. The flux distributions are also compared to optical images of the heliostat reflection on a plane target. Surface reconstruction from the photogrammetry point cloud results in a better agreement between the optical and simulated flux distributions on the target. Comparing results from the reconstructed surfaces and the ideal parabolic surface to optical images, a 20% improvement in prediction is achieved by using the photogrammetry point cloud as opposed to the ideal parabolic shape.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Causone, Francesco; Carlucci, Salvatore; Ferrando, Martina; Marchenko, Alla; Erba, Silvia
A data-driven procedure to model occupancy and occupant-related electric load profiles in residential buildings for energy simulation Journal Article
In: Energy and Buildings, vol. 202, pp. 109342, 2019, ISSN: 0378-7788.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Causone2019,
title = {A data-driven procedure to model occupancy and occupant-related electric load profiles in residential buildings for energy simulation},
author = {Francesco Causone and Salvatore Carlucci and Martina Ferrando and Alla Marchenko and Silvia Erba},
doi = {10.1016/J.ENBUILD.2019.109342},
issn = {0378-7788},
year = {2019},
date = {2019-11-01},
journal = {Energy and Buildings},
volume = {202},
pages = {109342},
publisher = {Elsevier},
abstract = {Improving the reliability of energy simulation outputs is becoming a pressing task to reduce the performance gap between the design and the operation of buildings. Occupant behaviour modelling is one of the most relevant sources of uncertainty in building energy modelling and is typically modelled via a priori choices made by modellers. Thus, an improvement in the description of occupant behaviour is needed. To this regard, the availability of smart meter recordings might help to generate more reliable input data for building energy models. This paper discusses a novel data-driven procedure that enables to create yearly occupancy and occupant-related electric load profiles to inform building energy modelling, using a typical uneven database made available by energy operators. The procedure is subdivided into three main tasks. The first has the intent to detect representative occupant-related electric load profiles from smart meters readings. The second task aims to generate yearly occupancy profiles from the same database. The last task assesses the impact of the generated occupancy and occupant-related electric load profiles on building energy simulation outputs. The procedure is applied to the case study of a multi-residential building in Milan, Italy and is meant to show the possibility to overcome deterministic inputs that might have little relation with the actual building operation. It showed a substantial improvement in the reliability of building energy simulation and that occupant related load profiles may account for about 8% of the building's energy need for space heating.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Nitter, Therese B.; Carlucci, Salvatore; Olsen, Snorre N.; Svendsen, Kristin V. H.
Energy use and perceived health in indoor swimming pool facilities Journal Article
In: IOP Conference Series: Materials Science and Engineering, vol. 609, no. 4, pp. 042051, 2019, ISSN: 1757-899X.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Nitter2019,
title = {Energy use and perceived health in indoor swimming pool facilities},
author = {Therese B. Nitter and Salvatore Carlucci and Snorre N. Olsen and Kristin V. H. Svendsen},
url = {https://iopscience.iop.org/article/10.1088/1757-899X/609/4/042051 https://iopscience.iop.org/article/10.1088/1757-899X/609/4/042051/meta},
doi = {10.1088/1757-899X/609/4/042051},
issn = {1757-899X},
year = {2019},
date = {2019-09-01},
journal = {IOP Conference Series: Materials Science and Engineering},
volume = {609},
number = {4},
pages = {042051},
publisher = {IOP Publishing},
abstract = {Swimming facilities are one of the most complex building categories with their high energy use and demanding indoor environment. A survey to collect information about user health and comfort, technical installations and operational strategies was distributed to pool facilities-from conventional swimming facilities to water parks-Across Norway, and this article is based on the responses from 45 facilities. Using a multiple regression analysis, approximately 75% of the delivered energy can be attributed to the bather load and number of opening days. No correlation between delivered energy and user health and thermal comfort was obtained; however, a significant correlation between bathers and workers perceived health and comfort was found. Furthermore, bathers in the water parks reported to be significantly less satisfied with the indoor environment in comparison to bathers in conventional swimming facilities. The water parks also have a lower air change rate compared to the conventional swimming facilities.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Kyprianou, Ioanna; Serghides, Despina; Varo, A.; Gouveia, J. P.; Kopeva, D.; Murauskaite, L.
Energy poverty policies and measures in 5 EU countries: A comparative study Journal Article
In: Energy and Buildings, vol. 196, pp. 46–60, 2019, ISSN: 03787788.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Kyprianou2019,
title = {Energy poverty policies and measures in 5 EU countries: A comparative study},
author = {Ioanna Kyprianou and Despina Serghides and A. Varo and J. P. Gouveia and D. Kopeva and L. Murauskaite},
doi = {10.1016/j.enbuild.2019.05.003},
issn = {03787788},
year = {2019},
date = {2019-08-01},
journal = {Energy and Buildings},
volume = {196},
pages = {46--60},
publisher = {Elsevier Ltd},
abstract = {Energy Poverty (EP)is the inability to attain a socially and materially necessitated level of domestic energy services. In the EU this occurs primarily due to low incomes, poor energy performance of buildings and high energy costs. The impacts of EP range from impaired social lives to unhealthy living conditions, with further consequences in the physical and mental health of energy poor individuals. Member states have been assigned by the EU with the responsibility of dealing with EP within their own territories. This is attainable mainly by creating effective policies, while also encouraging synergies among policies of different fields. However, scientific knowledge is gathered and action is taken on a national level only in a limited number of EU countries. For this reason, this paper aims to fill in the gap and capture snapshots from five EU countries (Cyprus, Spain, Portugal, Bulgaria and Lithuania)where EP has not been exhaustively examined. The study provides an overview of selected policies and measures directly or indirectly targeting EP alleviation and analyses their history and evolution at an EU level as well as at national level. It considers the different geographical dimensions, conditions and aspects (e.g. national or regional)where EP is encountered, in an attempt to identify any variances or similarities in the approaches adopted. Through this comparative study, strengths and weaknesses of national strategies are identified and analysed. Conclusively, based on this analysis, recommendations are made on how to utilise policy tools and provide the most efficient support to energy poor households in the corresponding countries.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Sridharan, Vignesh; Ramos, Eunice Pereira; Zepeda, Eduardo; Boehlert, Brent; Shivakumar, Abhishek; Taliotis, Constantinos; Howells, Mark
The impact of climate change on crop production in Uganda-An integrated systems assessment with water and energy implications Journal Article
In: Water (Switzerland), vol. 11, no. 9, pp. 1805, 2019, ISSN: 20734441.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@article{Sridharan2019a,
title = {The impact of climate change on crop production in Uganda-An integrated systems assessment with water and energy implications},
author = {Vignesh Sridharan and Eunice Pereira Ramos and Eduardo Zepeda and Brent Boehlert and Abhishek Shivakumar and Constantinos Taliotis and Mark Howells},
url = {https://www.mdpi.com/2073-4441/11/9/1805},
doi = {10.3390/w11091805},
issn = {20734441},
year = {2019},
date = {2019-08-01},
journal = {Water (Switzerland)},
volume = {11},
number = {9},
pages = {1805},
publisher = {MDPI AG},
abstract = {With less than 3% of agricultural cropland under irrigation, subsistence farmers in Uganda are dependent on seasonal precipitation for crop production. The majority of crops grown in the country-especially staple food crops like Matooke (Plantains)-are sensitive to the availability of water throughout their growing period and hence vulnerable to climatic impacts. In response to these challenges, the Government has developed an ambitious irrigation master plan. However, the energy implications of implementing the plan have not been explored in detail. This article attempts to address three main issues involving the nexus between water, energy, crop production, and climate. The first one explores the impact of climate on rain-fed crop production. The second explores the irrigation crop water needs under selected climate scenarios. The third focuses on the energy implications of implementing the irrigation master plan. We attempt to answer the above questions using a water balance model for Uganda developed for this study. Our results, developed at a catchment level, indicate that on average there could be an 11% reduction and 8% increase in rain-fed crop production in the cumulatively driest and wettest climates, respectively. Furthermore, in the identified driest climate, the electricity required for pumping water is expected to increase by 12% on average compared to the base scenario.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {article}
}
Bonanos, Aristides M.; Georgiou, Marios C.; Stokos, Konstantinos G.; Papanicolas, Costas N.
Engineering aspects and thermal performance of molten salt transfer lines in solar power applications Journal Article
In: Applied Thermal Engineering, vol. 154, pp. 294–301, 2019, ISSN: 13594311.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Bonanos2019,
title = {Engineering aspects and thermal performance of molten salt transfer lines in solar power applications},
author = {Aristides M. Bonanos and Marios C. Georgiou and Konstantinos G. Stokos and Costas N. Papanicolas},
doi = {10.1016/j.applthermaleng.2019.03.091},
issn = {13594311},
year = {2019},
date = {2019-05-01},
journal = {Applied Thermal Engineering},
volume = {154},
pages = {294--301},
publisher = {Elsevier Ltd},
abstract = {Concentrating solar thermal power coupled with thermal energy storage is considered as one of the leading technologies to address the decarbonization of the energy sector. The use of molten solar salt (60–40% b.w. NaNO3-KNO3) as heat transfer fluid and thermal storage medium is the current commercial practice, with alternative salt mixtures being under evaluation for the next-generation higher-temperature systems. The main drawback of the molten salts is their high freezing temperature; active means are required for preheating of- and to prevent salt from freezing in- the transfer lines. In this article we present experiences from the PROTEAS facility, where heating tapes as opposed to heating cables are used. The thermal energy losses from the transfer lines are evaluated and compared to those predicted by a one-dimensional heat transfer analysis. Thermal losses between 43 and 100 W/m are found at operating temperatures from 300 to 500 °C. A joint optimization of the capital and operational expenditure for heating tapes and insulation is performed, leading to the optimal insulation thickness and installed heat tracing capacity. Increasing the installed heat tracing capacity with respect to the minimum required to overcome thermal losses, leads to a reduction of the preheating time and, therefore, a reduction in the overall operational expenses of the system. In some situations, this was found to also lead to a reduction in the necessary insulation thickness. Simulations indicate that if the optimal insulation was used, a decrease of 10 and 15% in thermal losses and O&M expenditures, respectively, could be achieved.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Blanco, Manuel J.; Constantinou, Marios; Corsi, Clotilde; Grigoriev, Victor; Milidonis, Kypros; Panagiotou, Constantinos F.; Papanicolas, Costas N.; Pye, John; Votyakov, Evgeny
FluxTracer: A Ray Tracer Postprocessor to Assist in the Design and Optimization of Solar Concentrators and Receivers Journal Article
In: Journal of Solar Energy Engineering, Transactions of the ASME, vol. 141, no. 2, pp. 21015–1 – 21015–9, 2019, ISSN: 15288986.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Blanco2019a,
title = {FluxTracer: A Ray Tracer Postprocessor to Assist in the Design and Optimization of Solar Concentrators and Receivers},
author = {Manuel J. Blanco and Marios Constantinou and Clotilde Corsi and Victor Grigoriev and Kypros Milidonis and Constantinos F. Panagiotou and Costas N. Papanicolas and John Pye and Evgeny Votyakov},
url = {https://github.com/solartherm},
doi = {10.1115/1.4042127},
issn = {15288986},
year = {2019},
date = {2019-04-01},
journal = {Journal of Solar Energy Engineering, Transactions of the ASME},
volume = {141},
number = {2},
pages = {21015--1 -- 21015--9},
publisher = {American Society of Mechanical Engineers (ASME)},
abstract = {This paper presents FluxTracer, an advanced open source computer tool to assist in the analysis, design, and optimization of solar concentrators and receivers. FluxTracer is a postprocessor for Monte Carlo ray tracers used to simulate the optical behavior of solar concentrating systems. By postprocessing the rays generated by the ray tracer, FluxTracer can partition into volumetric pixels (voxels) a region of interest in three-dimensional (3D) space defined by the user and compute for each voxel the radiant power density of the concentrated solar radiation. Depending upon the set of rays provided by the ray tracer, it may be able to integrate the radiant power density in every voxel over time. The radiant energy density analysis described is just one of the analyses that FluxTracer can carry out on the set of rays generated by the ray tracer. This paper presents the main analyses that FluxTracer can provide. It also presents examples of how the information provided by FluxTracer can be used to assist in the analysis, design, and optimization of solar concentrators and receivers. FluxTracer is the first of a series of components of an open-source computational framework for the analysis, design, and optimization of solar concentrators and receiver, being developed by The Cyprus Institute (CyI) and the Australian National University (ANU).},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Moazami, Amin; Nik, Vahid M.; Carlucci, Salvatore; Geving, Stig
In: Applied Energy, vol. 238, pp. 696–720, 2019, ISSN: 0306-2619.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Moazami2019,
title = {Impacts of future weather data typology on building energy performance – Investigating long-term patterns of climate change and extreme weather conditions},
author = {Amin Moazami and Vahid M. Nik and Salvatore Carlucci and Stig Geving},
doi = {10.1016/J.APENERGY.2019.01.085},
issn = {0306-2619},
year = {2019},
date = {2019-03-01},
journal = {Applied Energy},
volume = {238},
pages = {696--720},
publisher = {Elsevier},
abstract = {Patterns of future climate and expected extreme conditions are pushing design limits as recognition of climate change and its implication for the built environment increases. There are a number of ways of estimating future climate projections and creating weather files. Obtaining adequate representation of long-term patterns of climate change and extreme conditions is, however, challenging. This work aims at answering two research questions: does a method of generating future weather files for building performance simulation bring advantages that cannot be provided by other methods? And what type of future weather files enable building engineers and designers to more credibly test robustness of their designs against climate change? To answer these two questions, the work provides an overview of the major approaches to create future weather data sets based on the statistical and dynamical downscaling of climate models. A number of weather data sets for Geneva were synthesized and applied to the energy simulation of 16 ASHRAE standard reference buildings, single buildings and their combination to create a virtual neighborhood. Representative weather files are synthesized to account for extreme conditions together with typical climate conditions and investigate their importance in the energy performance of buildings. According to the results, all the methods provide enough information to study the long-term impacts of climate change on average. However, the results also revealed that assessing the energy robustness of buildings only under typical future conditions is not sufficient. Depending on the type of building, the relative change of peak load for cooling demand under near future extreme conditions can still be up to 28.5% higher compared to typical conditions. It is concluded that only those weather files generated based on dynamical downscaling and that take into consideration both typical and extreme conditions are the most reliable for providing representative boundary conditions to test the energy robustness of buildings under future climate uncertainties. The results for the neighborhood explaining the critical situation that an energy network may face due to increased peak load under extreme climatic conditions. Such critical situations remain unforeseeable by relying solely on typical and observed extreme conditions, putting the climate resilience of buildings and energy systems at risk.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Moksnes, Nandi; Rozenberg, Julie; Broad, Oliver; Taliotis, Constantinos; Howells, Mark; Rogner, Holger
In: Environmental Research Communications, vol. 1, no. 2, pp. 025001–1 – 025001–25, 2019, ISSN: 25157620.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@article{Moksnes2019,
title = {Determinants of energy futures—a scenario discovery method applied to cost and carbon emission futures for South American electricity infrastructure},
author = {Nandi Moksnes and Julie Rozenberg and Oliver Broad and Constantinos Taliotis and Mark Howells and Holger Rogner},
url = {https://doi.org/10.1088/2515-7620/ab06de},
doi = {10.1088/2515-7620/ab06de},
issn = {25157620},
year = {2019},
date = {2019-03-01},
journal = {Environmental Research Communications},
volume = {1},
number = {2},
pages = {025001--1 -- 025001--25},
publisher = {IOP Publishing},
abstract = {Energy policy and investment are commonly informed by a small number of scenarios, modelled with proprietary models and closed data-sets. It limits what levels of insight that can be derived from it. This paper overcomes these critical concerns by exploring a large number of scenarios with an open-data and open-source model to address regional mitigation policy. Focusing on South America, we translate an ensemble of long-term electricity supply scenarios into policy insights and use post-processing methods to present a systematic mapping of solution outputs to model inputs. We find demand levels, the cost of capital and the level of CO2-limits to be significant determinants of total investment cost. Low-carbon pathways are associated with low demand and low cost of capital. When cost of capital increases a shift away from wind and hydropower to natural gas and solar PV is seen. We further show that appropriate concessionary finance together with energy efficiency measures are critical—at a continental level—to unlock economic, low-carbon investment.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {article}
}
Serghides, Despina; Dimitriou, Stella; Kyprianou, Ioanna; Papanicolas, Costas N.
The bioclimatic approach in developing smart urban isles for sustainable cities Journal Article
In: Renew. Energy Environ. Sustain., vol. 4, no. 2, 2019, ISSN: 2493-9439.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Serghides2019,
title = {The bioclimatic approach in developing smart urban isles for sustainable cities},
author = {Despina Serghides and Stella Dimitriou and Ioanna Kyprianou and Costas N. Papanicolas},
editor = {A. Sayigh},
url = {https://www.rees-journal.org/articles/rees/full_html/2019/01/rees180006s/rees180006s.html https://www.rees-journal.org/articles/rees/abs/2019/01/rees180006s/rees180006s.html https://link.springer.com/chapter/10.1007/978-3-030-18488-9_5},
issn = {2493-9439},
year = {2019},
date = {2019-01-01},
journal = {Renew. Energy Environ. Sustain.},
volume = {4},
number = {2},
abstract = {The rapid trends of urbanization have catastrophic consequences on the ecology of our cities. The large amounts of energy consumption and the reckless exploitation of natural resources is leading to increased emissions of ozone depleting gases and carbon dioxide emissions, which are polluting our planet and enhancing the effects of global warming. This paper will present the bioclimatic approach in achieving a smart urban isle as a basic unit for the development of sustainable cities of the EU ERANET project “Smart bioclimatic low-carbon urban areas as innovative energy isles in the sustainable city” (SUI). It will outline the project and demonstrate the approach of achieving bioclimatic urban isles through the Cyprus case study. The main aim of the SUI project is to develop sustainable cities through balancing locally the energy systems. Thus, the project aspires to move forward with the urban energy and CO2 reduction. The study will focus on the bioclimatic approach, which is one of the three cornerstone procedures (Bioclimatic design, Smart Grids and Management Platform) on which the project is based. It will exemplify how the various aspects of the bioclimatic design and the utilization of the beneficial aspects of the surrounding environment are exploited and applied on defined urban isles, as a basic unit of the city.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Fylaktos, Nestor
Environmental Considerations of Technical Innovations in Offshore Gas Exploration in the Eastern Med Presentation
Limassol, Cyprus, 01.10.2019.
Links | BibTeX | Tags: Energy Planning & Analysis
@misc{Fylaktos2019a,
title = {Environmental Considerations of Technical Innovations in Offshore Gas Exploration in the Eastern Med},
author = {Nestor Fylaktos},
url = {https://www.cypgastech.com/},
year = {2019},
date = {2019-10-01},
urldate = {2019-10-01},
address = {Limassol, Cyprus},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {presentation}
}
Moazami, Amin; Carlucci, Salvatore; Geving, Stig
Robust and resilient buildings: A framework for defining the protection against climate uncertainty Proceedings
IOP Publishing, vol. 609, no. 7, 2019, ISSN: 1757899X.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@proceedings{Wang2019,
title = {Robust and resilient buildings: A framework for defining the protection against climate uncertainty},
author = {Amin Moazami and Salvatore Carlucci and Stig Geving},
url = {https://iopscience.iop.org/article/10.1088/1757-899X/609/7/072068 https://iopscience.iop.org/article/10.1088/1757-899X/609/7/072068/meta},
doi = {10.1088/1757-899X/609/7/072068},
issn = {1757899X},
year = {2019},
date = {2019-09-01},
urldate = {2019-09-01},
booktitle = {IOP Conference Series: Materials Science and Engineering},
volume = {609},
number = {7},
pages = {072068},
publisher = {IOP Publishing},
abstract = {The design of high-performance buildings has been questioned for their actual performance in operation, where the impact of external perturbations such as occupant behavior and climate has proved to be prominent. These sources of variability, called aleatory uncertainties, are inherent variations of nondeterministic systems and are irreducible. Therefore, one of the main approaches to deal with these uncertainties is to consider them as noise during the design phase. The goal of the design is hence achieving a solution whose performance is least sensitive to the noise. This specific design process is called robust design. In this study, a prospect of climate conditions that a building might face during its lifespan is identified. However, although robust design can support the design of building variants whose performance is insensitive to typical climate conditions and also predictable extreme climate conditions, these building variants cannot be considered protected in case of unforeseeable extreme events. During such events, another property called resilience is required, which focuses on withstanding and recovering during and after the occurrence of the event. This study reviews the concepts of robustness and resilience and organizes them into a framework that clarifies their relationships in the protection of buildings against climate uncertainties.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {proceedings}
}
Corbett, Darcy R.; Blanco, Manuel J.; Bonanos, Aristides M.; Georgiou, Marios C.; Papanicolas, Costas N.; Roussos, Constantinos C.; Stiliaris, Efstathios G.; Stokos, Konstantinos G.; Votyakov, Evgeny
Object oriented modelling of the CSP-DSW facility Proceedings
American Institute of Physics Inc., vol. 2126, no. 1, 2019, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Corbett2019,
title = {Object oriented modelling of the CSP-DSW facility},
author = {Darcy R. Corbett and Manuel J. Blanco and Aristides M. Bonanos and Marios C. Georgiou and Costas N. Papanicolas and Constantinos C. Roussos and Efstathios G. Stiliaris and Konstantinos G. Stokos and Evgeny Votyakov},
url = {http://aip.scitation.org/doi/abs/10.1063/1.5117528},
doi = {10.1063/1.5117528},
issn = {15517616},
year = {2019},
date = {2019-07-01},
urldate = {2019-07-01},
booktitle = {AIP Conference Proceedings},
volume = {2126},
number = {1},
pages = {030016--1 -- 030016--8},
publisher = {American Institute of Physics Inc.},
abstract = {The acausal and object-oriented language Modelica was chosen to develop the overall system-level model of the Cyprus Institute's Concentrating Solar Power (CSP) and Desalination of Sea Water (DSW) proof-of-concept at the Platform for Research, Observation, and Technological Applications in Solar Energy (PROTEAS) facility in Cyprus. This model builds upon the system level and component models that are part of SolarTherm, an open-source Modelica library of concentrating solar thermal components, developed as part of the Australian Solar Thermal Research Initiative (ASTRI). The article describes the practical ad-hoc approaches used in modelling the components of the CSP-DSW in detail, explaining the reasons for their selection, their advantages and limitations. Two experiments conducted at PROTEAS in July 2016 and January 2018 were used to validate the model. Those experiments were simulated using the developed Modelica model. The comparison between the model's estimates and the test measurements produce a relatively good agreement, particularly in steady state. In addition to presenting the results, the article discusses the lessons learned from this experimental comparison regarding the quality of the model, how to improve it, and what additional tests to perform to fully validate it.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Stokos, Konstantinos G.; Georgiou, Marios C.; Roussos, Constantinos C.; Stiliaris, Efstathios G.; Papanicolas, Costas N.
Experimental methodology for the heat losses estimation in TES tanks Proceedings
American Institute of Physics Inc., vol. 2126, no. 1, 2019, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Stokos2019,
title = {Experimental methodology for the heat losses estimation in TES tanks},
author = {Konstantinos G. Stokos and Marios C. Georgiou and Constantinos C. Roussos and Efstathios G. Stiliaris and Costas N. Papanicolas},
url = {http://aip.scitation.org/doi/abs/10.1063/1.5117745},
doi = {10.1063/1.5117745},
issn = {15517616},
year = {2019},
date = {2019-07-01},
urldate = {2019-07-01},
booktitle = {AIP Conference Proceedings},
volume = {2126},
number = {1},
pages = {200030--1 -- 200030--7},
publisher = {American Institute of Physics Inc.},
abstract = {The present work introduces an indirect approach for the estimation of the heat losses in TES (Thermal Energy Storage) tanks. Heat losses are calculated taking into account the fact that in steady state condition they are equal to the heat input provided by electric heaters. The proposed methodology has been tested in the TESLAB (Thermal Energy Storage LABoratory) tank which is equipped with two electric heaters simulating the heat input from solar irradiation. Heaters' operation is controlled by an industrial PID (Proportional Integral Derivative) controller regulating their duty factor to achieve the desired set temperature. Total electric power is calculated as the summation of the contribution of each heater, which is equal to the product of the duty factor and the measured electric power. Heat losses for the TESLAB tank are compared with the measured losses during the cooling process satisfactorily. The proposed methodology could be also applied for the measurement of the heat losses of larger tanks, receivers and even CSP (Concentrated Solar Power) plants under operation without solar irradiation. Preliminary testing at the CSP-DSW (Concentrated Solar Power-Desalinated Sea Water) plant of The Cyprus Institute at PROTEAS (Platform for Research, Observation and TEchnological Applications in Solar energy) is quite promising.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Blanco, Manuel J.; Constantinou, Marios; Corsi, Clotilde; Grigoriev, Victor; Milidonis, Kypros; Panagiotou, Constantinos F.; Papanicolas, Costas N.; Pye, John; Votyakov, Evgeny
Analysis of the focal region of the heliostat field of the ASTRI reference plant with fluxtracer Proceedings
American Institute of Physics Inc., vol. 2126, no. 1, 2019, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Blanco2019,
title = {Analysis of the focal region of the heliostat field of the ASTRI reference plant with fluxtracer},
author = {Manuel J. Blanco and Marios Constantinou and Clotilde Corsi and Victor Grigoriev and Kypros Milidonis and Constantinos F. Panagiotou and Costas N. Papanicolas and John Pye and Evgeny Votyakov},
url = {http://aip.scitation.org/doi/abs/10.1063/1.5117672},
doi = {10.1063/1.5117672},
issn = {15517616},
year = {2019},
date = {2019-07-01},
urldate = {2019-07-01},
booktitle = {AIP Conference Proceedings},
volume = {2126},
number = {1},
pages = {170002},
publisher = {American Institute of Physics Inc.},
abstract = {FluxTracer is a new open source computer program being developed by the Cyprus Institute in close collaboration with the Australian National University. It is an experimental post-processor for Monte Carlo Ray Tracer (MCRT) simulations. By post-processing the rays generated by a MCRT, FluxTracer can provide information useful to analyze the distribution of the concentrated solar radiation in user-defined 3D-regions of interest within a solar concentrator. This paper presents the application of FluxTracer, to analyze the focal region of the heliostat field of the solar tower power plant considered as reference within the Australian Solar Thermal Research Initiative (ASTRI) and demonstrates the usefulness of the program in optimizing the dimensions of external cylindrical receivers or in providing guidance with regard to new receiver geometries of potential interest.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Montenon, Alaric C.; Tsekouras, Panagiotis; Tzivanidis, Christos; Bibron, Mathéou; Papanicolas, Costas N.
Thermo-optical modelling of the linear Fresnel collector at the Cyprus institute Proceedings
American Institute of Physics Inc., vol. 2126, no. 1, 2019, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Montenon2019,
title = {Thermo-optical modelling of the linear Fresnel collector at the Cyprus institute},
author = {Alaric C. Montenon and Panagiotis Tsekouras and Christos Tzivanidis and Mathéou Bibron and Costas N. Papanicolas},
url = {http://aip.scitation.org/doi/abs/10.1063/1.5117613},
doi = {10.1063/1.5117613},
issn = {15517616},
year = {2019},
date = {2019-07-01},
urldate = {2019-07-01},
booktitle = {AIP Conference Proceedings},
volume = {2126},
number = {1},
pages = {100004},
publisher = {American Institute of Physics Inc.},
abstract = {The present paper describes with accuracy the thermo-optical properties of the Fresnel collector currently in operation at the Cyprus Institute independently from its global location. It takes into consideration all optical losses in a perfect tracking environment based on the as-built parameters. The map of optical losses methodologically considers angle varying from 0° to 90° on both longitudinal and transversal angles to generate a global map of the losses. It gives an exact estimation of the maximum power that can be harvested on its absorber. The thermal analysis of the LFC receiver is performed in CFD environment (Solidworks Flow Simulation). Initially, the CFD model is compared to literature data and to a mathematical model (1D Heat Transfer Model - HTM) in order to prove the model consistency. Then, the CFD model is adjusted to the specific LFC characteristics, leading to the determination of the receiver heat losses calculations. Finally, parametric simulations are conducted by varying the oil temperature, the DNI level and the mass flow rate in order to assess their impact on the receiver performance.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Loureiro, Tatiana; Sterling, Raymond; Testani, Claudio; Torralba-Calleja, Elena; Turchetti, Luca; Blanco, Manuel J.; Ferriere, Alain; Perrotta, Fabrizio
Next Generation of Concentrated Solar Power Technologies Proceedings
Multidisciplinary Digital Publishing Institute, Cagliari, vol. 20, no. 1, 2019, ISSN: 2504-3900.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Loureiro2019,
title = {Next Generation of Concentrated Solar Power Technologies},
author = {Tatiana Loureiro and Raymond Sterling and Claudio Testani and Elena Torralba-Calleja and Luca Turchetti and Manuel J. Blanco and Alain Ferriere and Fabrizio Perrotta},
url = {https://www.mdpi.com/2504-3900/20/1/7},
doi = {10.3390/PROCEEDINGS2019020007},
issn = {2504-3900},
year = {2019},
date = {2019-06-01},
urldate = {2019-06-01},
booktitle = {Sustainable Places 2019},
volume = {20},
number = {1},
publisher = {Multidisciplinary Digital Publishing Institute},
address = {Cagliari},
abstract = {This paper presents the results from the workshop organized by the NEXTOWER project aimed at creating a cluster and exchange forum for projects and research activities in the area of Concentrated Solar Power. Synergies and experiences were shared, common difficulties, specially when dealing with innovative materials were found and discussed and new collaboration opportunities where presented.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Ferrando, Martina; Marchenko, Alla; Erba, Silvia; Causone, Francesco; Carlucci, Salvatore
Pattern Recognition And Classification For Electrical Energy Use In Residential Buildings Proceedings
International Building Performance Simulation Association, vol. 16, 2019, ISSN: 25222708.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@proceedings{Ferrando2021,
title = {Pattern Recognition And Classification For Electrical Energy Use In Residential Buildings},
author = {Martina Ferrando and Alla Marchenko and Silvia Erba and Francesco Causone and Salvatore Carlucci},
url = {https://doi.org/10.26868/25222708.2019.210750},
doi = {10.26868/25222708.2019.210750},
issn = {25222708},
year = {2019},
date = {2019-01-01},
urldate = {2021-01-01},
journal = {Building Simulation Conference Proceedings},
volume = {16},
pages = {2246--2253},
publisher = {International Building Performance Simulation Association},
abstract = {open},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {proceedings}
}
Νερού, Συμπαραγωγή Ηλεκτρισμού Και Αφαλατωμένου
Συμπαραγωγή Ηλεκτρισμού Και Αφαλατωμένου Νερού Proceedings
Επιτροπή Ενέργειας της Ακαδημίας Αθηνών, 2019, ISBN: 978-960-404-369-9.
@proceedings{2019,
title = {Συμπαραγωγή Ηλεκτρισμού Και Αφαλατωμένου Νερού},
author = {Συμπαραγωγή Ηλεκτρισμού Και Αφαλατωμένου Νερού},
editor = {Λουκάς Χριστοφόρου},
isbn = {978-960-404-369-9},
year = {2019},
date = {2019-01-01},
urldate = {2019-01-01},
booktitle = {Συμπαραγωγή Ηλεκτρισμού Και Αφαλατωμένου Νερού},
publisher = {Επιτροπή Ενέργειας της Ακαδημίας Αθηνών},
abstract = {Η κλιματική αλλαγή στην περιοχή της Ανατολικής Μεσογείου εξελίσσεται με μεγαλύτερη ένταση σε σχέση με τον παγκόσμιο μέσο όρο. Οι επιπτώσεις στα θαλάσσια και χερσαία οικοσυστήματα θα είναι ιδιαίτερα σοβαρές με σημαντική αύξηση της θερμοκρασίας, μείωση της βροχόπτωσης με αποτέλεσμα η παροχή νερού όσο και ενέργειας να γίνεται άκρως προβληματική. Το Ινστιτούτο Κύπρου αναπτύσσει σειρά τεχνολογιών με προεξέχουσα την συμπαραγωγή ηλεκτρισμού και αφαλατωμένου νερού από ΑΠΕ για την αντιμετώπιση αυτών των επιπτώσεων. Σε εξέλιξη βρίσκεται σχέδιο επέκτασής του έργου που αποσκοπεί στην πολύ-παραγωγή: ψύξη, θέρμανση, βιομηχανική και γεωργική χρήση, πλέον της αφαλάτωσης θαλασσινού νερού και παραγωγή ηλεκτρισμού. Σειρά τεχνοοικονομικών μελετών έχει δείξει ότι η χρήση των μονάδων αυτών σε νησιωτικές και παράκτιες περιοχές, ή σε κοινότητες με μειωμένη πρόσβαση σε δίκτυα ηλεκτρισμού, νερού και θέρμανσης/ψύξης, είναι οικονομικά πρόσφορη και βιώσιμη.},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
Fylaktos, Nestor; Papanicolas, Costas N.
New technologies for Eastern Mediterranean offshore gas exploration Technical Report
European Parliament 2019, ISBN: 978-92-846-4623-4.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@techreport{Fylaktos2019,
title = {New technologies for Eastern Mediterranean offshore gas exploration},
author = {Nestor Fylaktos and Costas N. Papanicolas},
url = {https://www.europarl.europa.eu/thinktank/en/document/EPRS_STU(2019)634419},
isbn = {978-92-846-4623-4},
year = {2019},
date = {2019-01-01},
institution = {European Parliament},
abstract = {The study examines the evolution of technologies in the offshore exploration and production of hydrocarbons in the Eastern Mediterranean, and their future environmental impact for the region. It finds that new technologies move this stage of natural gas development into increasing digitalisation, better designs for safety equipment, and increased automation. It then proceeds to propose a number of policy measures on collaboration, data sharing, environmental bassline surveys, open digital platforms, as well as better monitoring for fugitive greenhouse gas emissions. All these will aid in improving the environmental credentials of offshore operations, but they must be accompanied by closer cooperation and collaboration amongst the countries that surround the East Med.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {techreport}
}
Almulla, Youssef; Ramos, Eunice; Gardumi, Francesco; Taliotis, Constantinos; Lipponen, Annukka; Howells, Mark
The role of Energy-Water nexus to motivate transboundary cooperation: Journal Article
In: International Journal of Sustainable Energy Planning and Management, vol. 18, pp. 3–28, 2018, ISSN: 2246-2929.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@article{Almulla2018,
title = {The role of Energy-Water nexus to motivate transboundary cooperation:},
author = {Youssef Almulla and Eunice Ramos and Francesco Gardumi and Constantinos Taliotis and Annukka Lipponen and Mark Howells},
url = {https://discurso.aau.dk/index.php/sepm/article/view/2156},
doi = {10.5278/IJSEPM.2018.18.2},
issn = {2246-2929},
year = {2018},
date = {2018-12-01},
journal = {International Journal of Sustainable Energy Planning and Management},
volume = {18},
pages = {3--28},
publisher = {Aalborg University press},
abstract = {Hydropower is a key energy source for achieving Sustainable Development Goal 7. Meanwhile, the effects of hydropower development and operation are complex, and potentially a source of tension on transboundary rivers. This paper aims at exploring solutions that consider both energy and water to motivate transboundary cooperation in the operation of hydropower plants (HPPs) in the Drina River Basin (DRB), where the level of cooperation among the riparian countries is low. OSeMOSYS was used to develop a multi-country model with a simplified hydrological system to represent the cascade of HPPs in the DRB. Results show that improved cooperation can increase electricity generation in the HPPs downstream without compromising generation upstream. It also demonstrates the role of inexpensive hydropower in enhancing electricity trade in the region. Implementing energy efficiency measures would reduce the stress on coal power plants, which will mitigate CO2 emissions by about 21% compared to the 2015 level.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {article}
}
Balderrama, Jenny Gabriela Peña; Alfstad, Thomas; Taliotis, Constantinos; Hesamzadeh, Mohammad Reza; Howells, Mark
A sketch of Bolivia's potential low-carbon power system configurations. The case of applying carbon taxation and lowering financing costs Journal Article
In: Energies, vol. 11, no. 10, pp. 2738, 2018, ISSN: 19961073.
Abstract | Links | BibTeX | Tags: Energy Planning & Analysis
@article{PenaBalderrama2018,
title = {A sketch of Bolivia's potential low-carbon power system configurations. The case of applying carbon taxation and lowering financing costs},
author = {Jenny Gabriela Peña Balderrama and Thomas Alfstad and Constantinos Taliotis and Mohammad Reza Hesamzadeh and Mark Howells},
url = {http://www.mdpi.com/1996-1073/11/10/2738},
doi = {10.3390/en11102738},
issn = {19961073},
year = {2018},
date = {2018-10-01},
journal = {Energies},
volume = {11},
number = {10},
pages = {2738},
publisher = {MDPI AG},
abstract = {This paper considers hypothetical options for the transformation of the Bolivian power generation system to one that emits less carbon dioxide. Specifically, it evaluates the influence of the weighted average cost of capital (WACC) on marginal abatement cost curves (MACC) when applying carbon taxation to the power sector. The study is illustrated with a bottom-up least-cost optimization model. Projections of key parameters influence the shape of MACCs and the underlying technology configurations. These are reported. Results from our study (and the set of assumptions on which they are based) are country-specific. Nonetheless, the methodology can be replicated to other case studies to provide insights into the role carbon taxes and lowering finance costs might play in reducing emissions.},
keywords = {Energy Planning & Analysis},
pubstate = {published},
tppubtype = {article}
}
Blanco, Manuel J.; Votyakov, Evgeny; Christou, Chariton; Papanicolas, Costas N.; Corsi, Clotilde; Pye, John
In: ASME 2018 12th International Conference on Energy Sustainability, ES 2018, collocated with the ASME 2018 Power Conference and the ASME 2018 Nuclear Forum, 2018, ISBN: 9780791851418.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Blanco2018,
title = {FluxTracer: A 3D-Partitioning and Radiant Flux Computer Tool to Analyse the Optical Behaviour of Light Collection and Concentration Subsystems Using High Performance Computers},
author = {Manuel J. Blanco and Evgeny Votyakov and Chariton Christou and Costas N. Papanicolas and Clotilde Corsi and John Pye},
doi = {10.1115/ES2018-7415},
isbn = {9780791851418},
year = {2018},
date = {2018-10-01},
journal = {ASME 2018 12th International Conference on Energy Sustainability, ES 2018, collocated with the ASME 2018 Power Conference and the ASME 2018 Nuclear Forum},
publisher = {American Society of Mechanical Engineers Digital Collection},
abstract = {The light collection and concentration subsystem (LCCS) of any concentrating solar thermal (CST) system is composed of the surfaces that collect and concentrate the sunlight and of the input surfaces of the receivers, or receivers' envelopes, where the light is concentrated. For all commercial CST technologies the LCCS is, together with the power block, the subsystem that has more influence in the overall performance and cost. Thus, its optimization is critical to increase the costcompetitiveness of these systems. This optimization requires, in many cases, the optimization of the position, geometry and size of a very large number of solar collecting and concentrating surfaces as well as the optimization of the shape and size of the input surfaces of the receivers where the sunlight is concentrated. Because a full optimization requires the exploration of a configuration space with a very large number of dimensions, the traditional approach consist in making many initial assumptions to drastically reduce the number of dimensions of the configuration space to a handful, so that the optimization can be carried out using conventional high-end workstations in a matter of hours. However, to achieve relevant breakthroughs and to substantially increase the cost-competitiveness of CST systems a bolder approach is needed, where sophisticated design and analysis tools, engineered from the start to be used in High Performance Computers (HPC), will be combined with sophisticated optimization strategies targeted to explore and find optimal solutions in very high dimensional configuration spaces. This paper presents the first of a series of such design and analysis tools. The tool, call FluxTracer, partitions the threedimensional space in which the LCC subsystem under analysis is immersed into volumetric pixels (voxels) and computes the radiant energy flux that traverses each voxel as a function of time. It integrates the energy density in every voxel overtime, providing detailed information regarding how the radiant energy flows in space in a given LCC subsystem and in a given period of time. This information is the cornerstone of the highly sophisticated computational LCC subsystem optimization framework The Cyprus Institute (CYI) is developing, in collaboration with the Australian National University (ANU), targeted to be used in HPC's.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Milidonis, Kypros; Semlitsch, Bernhard; Hynes, Tom
Effect of clocking on compressor noise generation Journal Article
In: AIAA Journal, vol. 56, no. 11, pp. 4225–4231, 2018, ISSN: 00011452.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Milidonis2018,
title = {Effect of clocking on compressor noise generation},
author = {Kypros Milidonis and Bernhard Semlitsch and Tom Hynes},
url = {https://arc.aiaa.org/doi/abs/10.2514/1.J057256},
doi = {10.2514/1.J057256/ASSET/IMAGES/LARGE/FIGURE8.JPEG},
issn = {00011452},
year = {2018},
date = {2018-09-01},
journal = {AIAA Journal},
volume = {56},
number = {11},
pages = {4225--4231},
publisher = {American Institute of Aeronautics and Astronautics Inc.},
abstract = {The effect of stator clocking on the acoustic noise-generation characteristics in an axial high-pressure compressor is analyzed. A realistic geometry with 1.5 stages is assessed using high-fidelity and low-order numerical methods for different clocking positions at approach operating conditions. The compressor efficiency and the acoustic noise emission are found to vary insignificantly between the simulated clocking configurations. Nonetheless, the pressure distribution is altered significantly, right upstream of the inlet guide vanes. Although the cut-on modes exhibit at least 10-dB-higher amplitudes, the cutoff modes contribute decisively to the wave pattern in the near field. An optimal acoustic liner design can expand on the differently evolving interference pattern of acoustic waves at discrete frequencies. The low-order model is found to predict the directionality of the acoustic waves, and the cut-on criteria for the individual modes is in excellent agreement with the high-fidelity simulations. However, the phase cannot be estimated due to the simplicity of the low-order formulation.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Kyprianou, Ioanna; Serghides, Despina
Energy poverty in Cyprus and the use of geographic information systems Journal Article
In: Proceedings of SPIE - The International Society for Optical Engineering, vol. 10773, pp. 51, 2018, ISSN: 1996756X.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Kyprianou2018,
title = {Energy poverty in Cyprus and the use of geographic information systems},
author = {Ioanna Kyprianou and Despina Serghides},
url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10773/107730K/Energy-poverty-in-Cyprus-and-the-use-of-geographic-information/10.1117/12.2326172.full https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10773/107730K/Energy-p},
doi = {10.1117/12.2326172},
issn = {1996756X},
year = {2018},
date = {2018-08-01},
journal = {Proceedings of SPIE - The International Society for Optical Engineering},
volume = {10773},
pages = {51},
publisher = {SPIE-Intl Soc Optical Eng},
address = {Paphos},
abstract = {Since the economic crisis of 2008, many energy-related issues have come to the forefront of public debate. One of them is Energy Poverty (EP), which could be described as the inability of a household to maintain adequate levels of essential energy services in the home. In practical terms, this means that energy poor households are those that cannot afford energy amenities that are deemed to be necessary according to modern society (e.g. heating and cooling). In order to investigate the various concerns of EP, several tools may be employed. One of them is the use of Geographical Information Systems (GIS). This tool is useful since it could trace demographic information to identify society groups that are at risk of energy poverty; also it could be used to locate buildings with constructional characteristics which display energy inefficiency. GIS has been previously used in EP research to predict areas most vulnerable to fuel poverty; it could also be employed in spatial-economic analyses, to provide utilisation of renewable energy solutions that are most cost-effective according to regional characteristics, in order to mitigate energy poverty with clean energy. The aim of this paper is to provide a basis for the incorporation of GIS into the decision-making process, so that policy makers are able to effectively alleviate EP, while also promoting clean energy. This paper provides a brief review of the various types of GIS applications that can be used to study EP in Cyprus. The potential of the various forms of renewable energy technologies that could be adopted to supplement energy-poor households is also examined. Consequently, policies targeting at the mitigation of EP in Cyprus could be adjusted accordingly, based on regional characteristics derived from GIS studies, in order to provide energy vulnerable inhabitants with the most effective relieving schemes. textcopyright 2018 SPIE.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Igreja, José M.; Marakkos, Costas; Lemos, João M.
Finite dimensional models of the hydraulic hammer effect and solar tower control Journal Article
In: Journal of Process Control, vol. 65, pp. 78–83, 2018, ISSN: 09591524.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Igreja2018,
title = {Finite dimensional models of the hydraulic hammer effect and solar tower control},
author = {José M. Igreja and Costas Marakkos and João M. Lemos},
doi = {10.1016/j.jprocont.2017.10.002},
issn = {09591524},
year = {2018},
date = {2018-05-01},
journal = {Journal of Process Control},
volume = {65},
pages = {78--83},
publisher = {Elsevier Ltd},
abstract = {The occurrence of traveling shock waves associated to the sudden opening or closing of a valve, known as the hammer effect, is important from the perspective of control design because it imposes an upper bound constraint on the maximum bandwidth achievable for the controlled system. This article addresses the problem of characterizing hydraulic hammer effect of the heating fluid in a solar power tower. The transfer function that relates the increments of the pressure inside the pipe and the fluid velocity is computed, as well as its poles and zeros. In this way, it is possible to obtain finite dimensional linear approximations for this transfer function with a prescribed complexity. As an application, the traveling waves of pressure and velocity of a fluid used for temperature control in a typical solar tower circuit are simulated.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Milidonis, Kypros; Georgiou, Demos P.
In: Progress in Computational Fluid Dynamics, vol. 18, no. 6, pp. 362–375, 2018, ISSN: 17415233.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Milidonis2018a,
title = {Film cooling effectiveness predictions in the region of the blade-endwall junction corner with injection assisted by the recirculating vortex flow},
author = {Kypros Milidonis and Demos P. Georgiou},
doi = {10.1504/PCFD.2018.096624},
issn = {17415233},
year = {2018},
date = {2018-01-01},
journal = {Progress in Computational Fluid Dynamics},
volume = {18},
number = {6},
pages = {362--375},
publisher = {Inderscience Publishers},
abstract = {The region around the blade leading edge-endwall junction in inlet guide vanes (IGV) of gas turbines presents one of the most difficult hot spots to be cooled within the blade passage, largely due to the presence of strong three dimensional flows which displace the coolant away from the region before it can provide adequate cooling. The present study investigates via RANS-based simulation the film cooling effectiveness of a novel slot injection in which the coolant is ejected in such a way that its cooling effectiveness is assisted by the presence of the local three dimensional flows (especially the horseshoe vortex) that dominate the junction area. The computational predictions indicate that the proposed injection geometry provides a very effective cooling method for addressing the high heat transfer rate around the problematic region. The predicted three-dimensional flow topology and the associated endwall heat transfer are presented and discussed in order to elucidate the physical mechanisms that lead to the successful film cooling effectiveness of the proposed injection slot.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Milidonis, Kypros; Hynes, Tom; Doherty, Martin; Namgoong, Howoong
The effect of steady intake distortion on fan MPT noise under sideline flight conditions Journal Article
In: 2018 AIAA/CEAS Aeroacoustics Conference, 2018, ISBN: 9781624105609.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Milidonis2018b,
title = {The effect of steady intake distortion on fan MPT noise under sideline flight conditions},
author = {Kypros Milidonis and Tom Hynes and Martin Doherty and Howoong Namgoong},
url = {https://arc.aiaa.org/doi/abs/10.2514/6.2018-4188},
doi = {10.2514/6.2018-4188},
isbn = {9781624105609},
year = {2018},
date = {2018-01-01},
journal = {2018 AIAA/CEAS Aeroacoustics Conference},
publisher = {American Institute of Aeronautics and Astronautics Inc, AIAA},
abstract = {One of the major challenges faced in the design of modern turbofan engines is the reduction of noise generation at operating conditions where the relative flow past the fan blades is supersonic. Under these conditions, the resulting noise signature is known as “Multiple Pure Tone” or “Buzz-saw” noise and it's an effect of both: (1)The small passage-to-passage aerodynamic deviations occurring due to blade manufacturing tolerances and fan rotor assembly mistuning, and (2), the inlet mean flow steady distortion imposed by the use of non-axisymmetric drooped intakes. Due to the complexity of the problem, modeling the buzz-saw noise generation and propagation in the intake is often performed by employing analytical and numerical prediction schemes, frequently resorting to assumptions that significantly deviate from the real underlying physics. To ease the modeling of the noise source and its spatial propagation characteristics, advanced computational fluid dynamics (CFD) is utilized in the current study in order to investigate the impact of the steady inlet flow distortion imposed by sideline flight conditions on buzz-saw noise generation and propagation. The test configuration adopted for the calculations is comprised of a full-annulus 22-bladed fan with individual blade stagger angle variation coupled with a realistic non-axisymmetric drooped intake. The results are compared to a second calculation employing the same configuration under static engine conditions and at the same speed. The calculations reveal that due to the different operating conditions, local variations do exist in the steady distortion which causes modifications on the modal propagation and radiation directivity. The major differences observed between the two cases are mainly confined to the top half of the intake.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Peruchena, Carlos F.; Larrañeta, Miguel; Blanco, Manuel J.; Bernardos, Ana
High frequency generation of coupled GHI and DNI based on clustered Dynamic Paths Journal Article
In: Solar Energy, vol. 159, pp. 453–457, 2018, ISSN: 0038092X.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Peruchena2018,
title = {High frequency generation of coupled GHI and DNI based on clustered Dynamic Paths},
author = {Carlos F. Peruchena and Miguel Larrañeta and Manuel J. Blanco and Ana Bernardos},
doi = {10.1016/j.solener.2017.11.024},
issn = {0038092X},
year = {2018},
date = {2018-01-01},
journal = {Solar Energy},
volume = {159},
pages = {453--457},
publisher = {Elsevier Ltd},
abstract = {This Brief Note presents a general and efficient clustered-based methodology for the generation of high-frequency coupled global horizontal irradiance (GHI) and direct normal irradiance (DNI) series, based on the envelope clear sky and Dynamic Paths concepts. The procedure for generating 1-min synthetic irradiance data assumes that the effect of passing clouds on the fluctuations of both GHI and DNI can be dynamically reproduced using local variability patterns characterized by a 1-year ground measurements. This work presents for the first time synthetically generated 1-min GHI and DNI coupled datasets (156 months, from 1999 to 2011) generated from their corresponding low frequency series and local solar irradiance dynamics. The statistical parameters used for compare the measured and generated series perform well: mean absolute deviation is negligible, with averaged values of ∼0.3% and ∼0.2% for GHI and DNI, respectively. The KSI(%) values for DNI and GHI are lower than 100% in average. KSI(%) values of GHI series (in the range of 51.5–70.1% for averaged daily KSI(%) values at each month) are lower than the respective KSI(%) values of the DNI series (in the range of 75.0–110.8%). Finally, the generated 1-min solar irradiance series has the same autocorrelative structure as the observed, according to the similitude of their Ramp Rates.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Alaric||Papanicolas Montenon, Costas
Theoretical study of a hybrid Fresnel collector to supply electricity and air-conditioning for building Conference
2018.
@conference{nokey,
title = {Theoretical study of a hybrid Fresnel collector to supply electricity and air-conditioning for building},
author = {Montenon, Alaric||Papanicolas, Costas},
year = {2018},
date = {2018-11-01},
urldate = {2018-11-01},
abstract = {The Cyprus Institute hosts in its premises in the outskirts of Nicosia the first Fresnel collector of the island since July 2016. It produces heat that supplies both heating and cooling with the help of an absorption chiller for the Novel Technologies Laboratory. Whenever the facility does not fully cover the thermal needs of the building, one heat-pump and two chillers compensate the gap. The solar system is potentially able to reduce the electricity consumption for air-conditioning by lowering the load to these heat-pumps and chillers (by 33.93%). The pilot plant demonstrates that solar concentration can supply air-conditioning in the built environment in Cyprus close to the end user. Therefore it also limits the emissions of greenhouse effect as the electricity mix relies mainly on fossil fuels in Cyprus. However the solar collector remains in standby whenever insolation is poor or when ambient temperature is not too cold nor too hot to activate the air-conditioning. Also during the week-ends the building is unoccupied and the Fresnel collectors remains in standby, more than 28% of the
time. This exacerbates considering the bank holidays, closing days and days without any need for air-conditioning. The present article proposes to study the upgrade of the current facility with a single axis tracking photovoltaic generator of 25,92kW under the mirrors able to produce electricity during these vacant days. Based on the study of Novel Technologies Laboratory, this innovative type of collector enhances the capacity of renewables in the urban environment and reduces globally the energy dependence to fossil fuels for administration or industrial buildings.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Blanco, Manuel Jesus
Upper Limits to the Annual Optical Efficiency of Solar Tower Systems Conference
2018, ISBN: 978-972-99596-4-6.
@conference{nokey,
title = {Upper Limits to the Annual Optical Efficiency of Solar Tower Systems},
author = {Blanco, Manuel Jesus},
isbn = {978-972-99596-4-6},
year = {2018},
date = {2018-06-01},
urldate = {2018-06-01},
abstract = {The pioneers of Concentrating Solar Tower technology investigated the theoretical performance limit of the of the Light Collection and Concentration (LCC) subsystem; heliostats field and receiver.Their findings help to establish Solar Tower technology as one of the most promising Concentrating Solar Thermal (CST) technologies, fostering research in this technological field. However, in spite of this research, the annual optical efficiency of the LCC subsystem of a solar tower power plant gained limited improvement in the last 40 years -currently it is still substantially below the 70% mark power plants of relevant sizes. The multiple factors influencing the overall annual optical efficiency of the LCC subsystem and their interdependences are the underlying reasons explaining this relatively lack of progress. A thorough and systematic analysis of the theoretical limits of the optical efficiency of the LCC subsystem of solar towers is essential to: (a) identify the gaps between the optical performance of existing technology and the maximum theoretical potential and (b) clarify the interplay among the limiting factors and improve the understanding of their limitations to orientate solar tower technology improvement and innovation into appropriate pathways. In this article, we present the results of such a thorough systematic analysis of the theoretical limits of the LCC subsystem of a solar tower power plant.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Wang, Ye; Potter, Daniel; Asselineau, Charles Alexis; Corsi, Clotilde; Wagner, Michael; Blanco, Manuel J.; Kim, Jin Soo; Pye, John
Comparison of optical modelling tools for sunshape and surface slope error Proceedings
American Institute of Physics Inc., vol. 2033, no. 1, 2018, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Wang2018,
title = {Comparison of optical modelling tools for sunshape and surface slope error},
author = {Ye Wang and Daniel Potter and Charles Alexis Asselineau and Clotilde Corsi and Michael Wagner and Manuel J. Blanco and Jin Soo Kim and John Pye},
url = {http://aip.scitation.org/doi/abs/10.1063/1.5067222},
doi = {10.1063/1.5067222},
issn = {15517616},
year = {2018},
date = {2018-11-01},
urldate = {2018-11-01},
booktitle = {AIP Conference Proceedings},
volume = {2033},
number = {1},
pages = {210020},
publisher = {American Institute of Physics Inc.},
abstract = {The sunshape and mirror surface slope error are two main factors that influence the characteristics of incoming and reflected solar beams in a solar concentrator. Different optical modelling tools, however, address these two factors with different methods and simplifications. In this study, simulation methods are reviewed in five optical modelling tools, namely SolTrace, Tonatiuh, Tracer, Heliosim and SolarPILOT. A series of simple test cases are simulated in each tool to compare and verify the implementation of sunshape and slope error models separately. This strategy has successfully identified discrepancies among the tools and contributed to a better understanding of their reasons. It has also uncovered few glitches in some of those tools and contributed to improve them. It is our hope that this study will help to resolve common misconceptions, to build confidence amongst CSP researches on the accuracy of tools with which they have less experience, and to ensure better agreement in optical modelling work in future.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Cardoso, João P.; Marcelo, Teresa; Jarraud, Nicolas; Dufour, Elena; Papanicolas, Costas N.; Mendes, João F.; Blanco-Gálvez, Julián
Towards an alignment of national research programmes and funding for CST technologies in Europe Proceedings
American Institute of Physics Inc., vol. 2033, no. 1, 2018, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Cardoso2018a,
title = {Towards an alignment of national research programmes and funding for CST technologies in Europe},
author = {João P. Cardoso and Teresa Marcelo and Nicolas Jarraud and Elena Dufour and Costas N. Papanicolas and João F. Mendes and Julián Blanco-Gálvez},
url = {http://aip.scitation.org/doi/abs/10.1063/1.5067132},
doi = {10.1063/1.5067132},
issn = {15517616},
year = {2018},
date = {2018-11-01},
urldate = {2018-11-01},
booktitle = {AIP Conference Proceedings},
volume = {2033},
number = {1},
pages = {120003--1 -- 120003--6},
publisher = {American Institute of Physics Inc.},
abstract = {One of the STAGE-STE project work packages aims to develop relations with public bodies relevant to Concentrating Solar Thermal (CST) research, such as national research funding agencies, ministries and other leading decision making bodies, in order to foster coordination and alignment of research programmes and funding at European level. Working groups have been created in eight European countries and concept notes were prepared regarding each group's position on national CST research and funding programmes and its possible alignment at European scale. General trends and main conclusions drawn from the concept notes are presented, aiming to provide clues and common themes to the development of aligned CST research and funding programmes. Although the National Working Groups present different approaches there are coincident points, thus a common Research and Technological Development agenda for CST can be achieved at European scale. The alignment of CST research funding represents an harder task and will demand the improvement of available funding schemes or the development of a new one. However, there is some convergence regarding the general characteristics of the scheme and the kind of projects to be funded.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Votyakov, Evgeny; Georgiou, Marios C.; Guillen, Elena; Stiliaris, Efstathios G.; Papanicolas, Costas N.
Experimental methodology to calculate thermal losses of a molten salt cavity receiver Proceedings
American Institute of Physics Inc., vol. 2033, no. 1, 2018, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Votyakov2018,
title = {Experimental methodology to calculate thermal losses of a molten salt cavity receiver},
author = {Evgeny Votyakov and Marios C. Georgiou and Elena Guillen and Efstathios G. Stiliaris and Costas N. Papanicolas},
url = {http://aip.scitation.org/doi/abs/10.1063/1.5067077},
doi = {10.1063/1.5067077},
issn = {15517616},
year = {2018},
date = {2018-11-01},
urldate = {2018-11-01},
booktitle = {AIP Conference Proceedings},
volume = {2033},
number = {1},
pages = {040041--1 -- 040041--8},
publisher = {American Institute of Physics Inc.},
abstract = {We report experimental results on the Integrated Storage and Receiver (ISTORE) designed and commissioned at the Platform for Research, Observation, and TEchnological Applications in Solar Energy (PROTEAS), Cyprus. These first experiments were aimed at gaining a detailed understanding of the ISTORE heat loss during operation and the validation of the detailed modeling of the system. Specifically, heat losses caused by ISTORE imperfect insulation and heat losses from the cavity volume via its aperture due to air convection and radiation were examined. Experimental and CFD simulation results are compared and good agreement is shown. The described methodology and modeling will be used for the design of future ISTORE devices.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Stokos, Konstantinos G.; Stiliaris, Efstathios G.; Bonanos, Aristides M.; Georgiou, Marios C.; Guillen, Elena; Montenon, Alaric C.; Papanicolas, Costas N.
The control system at PROTEAS Proceedings
American Institute of Physics Inc., vol. 2033, no. 1, 2018, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Stokos2018,
title = {The control system at PROTEAS},
author = {Konstantinos G. Stokos and Efstathios G. Stiliaris and Aristides M. Bonanos and Marios C. Georgiou and Elena Guillen and Alaric C. Montenon and Costas N. Papanicolas},
url = {http://aip.scitation.org/doi/abs/10.1063/1.5067221},
doi = {10.1063/1.5067221},
issn = {15517616},
year = {2018},
date = {2018-11-01},
urldate = {2018-11-01},
booktitle = {AIP Conference Proceedings},
volume = {2033},
number = {1},
pages = {210019},
publisher = {American Institute of Physics Inc.},
abstract = {The present paper describes the implementation of a Control System at the Platform for Research, Observation and TEchnological Applications in Solar energy (PROTEAS) in Cyprus. The Control System has been designed taking into consideration all developmental and operational needs for a modern and robust system, suitable for an experimental facility. It has been designed for a decentralized and distributed architecture and provides the flexibility to the developers to modify and extend the system easily. The functionality of the Control System is presented, giving emphasis to the special characteristics of the plant subsystems and in particular those of the cogeneration facility of electricity and desalinated seawater. The adopted safety measures to ensure the safe operation of the plant are also presented. The PROTEAS Control System has proven sufficient till now, while plans for its further improvement and expansion are underway.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Corsi, Clotilde; Blanco, Manuel J.; Kim, Jin Soo; Pye, John
American Institute of Physics Inc., vol. 2033, no. 1, 2018, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Corsi2018,
title = {Point-focus multi-receiver Fresnel loop - Exploring ways to increase the optical efficiency of solar tower systems},
author = {Clotilde Corsi and Manuel J. Blanco and Jin Soo Kim and John Pye},
url = {http://aip.scitation.org/doi/abs/10.1063/1.5067165},
doi = {10.1063/1.5067165},
issn = {15517616},
year = {2018},
date = {2018-11-01},
urldate = {2018-11-01},
booktitle = {AIP Conference Proceedings},
volume = {2033},
number = {1},
pages = {170001},
publisher = {American Institute of Physics Inc.},
abstract = {For commercial solar tower systems of relevant size, state of the art of light collection and concentration (LCC) subsystems (heliostat field plus receiver envelope) do not achieve annual optical efficiencies larger than 65%. Achieving optical efficiencies substantially higher than that requires departing from the traditional mono-tower design. Although multi-tower systems were identified long time ago as candidates to achieve high annual optical efficiencies, so far no multi-tower concept has emerged as a clear alternative to the mono-tower system. In this article, we introduce a variant of the multi-tower concept that combines the modularity and high land coverage of linear focusing technologies with the low thermal losses and high operating temperatures of solar tower technology, and overall represents a disruptive departure from the traditional mono-tower design.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Cardoso, João P.; Mutuberria, Amaia; Marakkos, Costas; Schoettl, Peter; Osório, Tiago; Les, Iñigo
New functionalities for the Tonatiuh ray-tracing software Proceedings
American Institute of Physics Inc., vol. 2033, no. 1, 2018, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Cardoso2018,
title = {New functionalities for the Tonatiuh ray-tracing software},
author = {João P. Cardoso and Amaia Mutuberria and Costas Marakkos and Peter Schoettl and Tiago Osório and Iñigo Les},
url = {http://aip.scitation.org/doi/abs/10.1063/1.5067212},
doi = {10.1063/1.5067212},
issn = {15517616},
year = {2018},
date = {2018-11-01},
urldate = {2018-11-01},
booktitle = {AIP Conference Proceedings},
volume = {2033},
number = {1},
pages = {210010},
publisher = {American Institute of Physics Inc.},
abstract = {Tonatiuh is an open source, freeware, Monte Carlo ray tracer suitable for CST applications, and is currently under further development to to increase and improve its functionalities. Work has recently been performed to implement the following functionalities: a flux distribution calculation utility; materials with incidence angle dependent optical properties; and the ability to import 3D geometries from CAD files. This paper provides a detailed account of these new functionalities, and the tests performed to establish their correct implementation in the new software version, Tonatiuh v 2.2.3.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Bonanos, Aristides M.; Faka, Marina; Abate, Dante; Hermon, Sorin; Blanco, Manuel J.
Optical characterization of heliostats using multiple 3D geometry characterization sensors Proceedings
American Institute of Physics Inc., vol. 2033, no. 1, 2018, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Bonanos2018,
title = {Optical characterization of heliostats using multiple 3D geometry characterization sensors},
author = {Aristides M. Bonanos and Marina Faka and Dante Abate and Sorin Hermon and Manuel J. Blanco},
url = {http://aip.scitation.org/doi/abs/10.1063/1.5067044},
doi = {10.1063/1.5067044},
issn = {15517616},
year = {2018},
date = {2018-11-01},
urldate = {2018-11-01},
booktitle = {AIP Conference Proceedings},
volume = {2033},
number = {1},
pages = {040008--1 -- 040008--8},
publisher = {American Institute of Physics Inc.},
abstract = {A collaboration between the Energy Environment and Water (EEWRC) and Science and Technology in Archaeology (STARC) Research Centers of The Cyprus Institute has been established with the aim of combining techniques, methodologies, and software analysis from the respective fields to characterize the optical surface of a heliostat. Both imaging and range-based approaches were used to obtain the raw data, which was subsequently refined to a corresponding 3D point cloud and further processed to characterize the real surface geometry of the heliostat. The heliostats was surveyed with both techniques in two positions, with the point clouds being placed online for comparison. After suitable post-processing, the resulting surface was imported into a ray-tracing software. The favorable agreement found between the visual images of solar flux reflected by the heliostat on a flat target at different sun positions and the equivalent distributions obtained from the ray-tracing model of the measured surface demonstrates that the proposed techniques to obtain the geometrical raw data and the post-processing methodologies used are suitable for the optical characterization of heliostats.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Montenon, Alaric C.; Papanicolas, Costas N.
Theoretical study of a hybrid Fresnel collector to supply electricity and air-conditioning for buildings Proceedings
Nicosia, 2018.
Abstract | BibTeX | Tags: Advanced Renewable Energy Systems, Sustainable Built Environment
@proceedings{Montenon2018,
title = {Theoretical study of a hybrid Fresnel collector to supply electricity and air-conditioning for buildings},
author = {Alaric C. Montenon and Costas N. Papanicolas},
year = {2018},
date = {2018-01-01},
urldate = {2018-01-01},
booktitle = {RESEE},
address = {Nicosia},
abstract = {The Cyprus Institute hosts in its premises in the outskirts of Nicosia the first Fresnel collector of the island since July 2016. It produces heat that supplies both heating and cooling with the help of an absorption chiller for the Novel Technologies Laboratory. Whenever the facility does not cover fully the thermal load from the building, one heat-pump and two chillers compensate the needs. The solar system is potentially able to reduce the electricity consumption for airconditioning by lowering the load to these heat-pumps and chillers (by 74.58%). The facility can cover up to 82.00% of the heating load during winter and up to 67.59% of the cooling load during summer. The pilot plant demonstrates that solar concentration can supply airconditioning in commercial buildings in Cyprus as close as possible to the end user. Therefore it also limits the emissions of greenhouse effect gazes as the electricity mix relies mainly on fossil fuels in Cyprus. However the solar collector remains in standby whenever insolation is poor or when ambient temperature is not cold nor hot to activate the airconditioning. Also during the weekends the buildings is unoccupied and the Fresnel collectors remains in standby, more than 28% of the time. This exacerbates considering the bank holidays, closure days and days without the need or airconditioning. The present article proposes to study the upgrade of the current facility with a single axis tracking photovoltaic generator of 25,92kW under the mirrors able to produce electricity during these vacant days. Based on the study of Novel Technologies Laboratory, thus fosters by 2.5 times the capacity of the collector that can supply both thermal and electric needs. This type of collector is then able to enhance the capacity of renewables in the urban environment and to reduce globally the energy dependence to fossil fuels for administration or industrial buildings.},
keywords = {Advanced Renewable Energy Systems, Sustainable Built Environment},
pubstate = {published},
tppubtype = {proceedings}
}
Pignatta, G.; Chatzinikola, C.; Artopoulos, George; Papanicolas, Costas N.; Serghides, Despina; Santamouris, Mat
Analysis of the indoor thermal quality in low income Cypriot households during winter Journal Article
In: Energy and Buildings, vol. 152, pp. 766–775, 2017, ISSN: 03787788.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Pignatta2017,
title = {Analysis of the indoor thermal quality in low income Cypriot households during winter},
author = {G. Pignatta and C. Chatzinikola and George Artopoulos and Costas N. Papanicolas and Despina Serghides and Mat Santamouris},
doi = {10.1016/j.enbuild.2016.11.006},
issn = {03787788},
year = {2017},
date = {2017-10-01},
journal = {Energy and Buildings},
volume = {152},
pages = {766--775},
publisher = {Elsevier Ltd},
abstract = {The recent global financial and economic crisis is responsible for the significant decrease of heating energy consumption, especially in low income population that mostly live in non-thermally-performing houses. The decrease of the residents' income results in lower internal temperatures, hence lower thermal levels and lower indoor environmental quality, which are responsible for health problems and inadequate quality of life for the residents. This paper deals with the problem of energy poverty. The aim is to investigate whether the economic crisis, which affects the heating energy consumption and the indoor thermal quality, has consequences on the social and health problems in low income families of the Republic of Cyprus, during the winter season. To this aim, an extensive continuous monitoring study in terms of indoor air temperatures was carried out, for one year since December 2013 in 38 low income households in Limassol and Paphos, two of the main districts of the island after the capital of Nicosia. Additionally, questionnaires regarding energy, environmental, social, and health data were designed and collected from each household. Consequently, a cluster analysis, based on the monitoring data related to the first two months of 2014 and the survey's responses, was performed. Poor households of Cyprus were found to live in low indoor thermal quality, i.e. their average indoor air temperatures (ranging from 16 to 19°C) are lower than the accepted limits of the comfort zone for the island (18–21°C in winter). However, the thermal comfort and health conditions were found between the “acceptable” and “good” levels for each cluster. Additionally, a strong correlation is detected between the average internal temperature of the dwellings and the average income of the selected families. Finally, the heating energy consumption was found to be lower than the country's average for the clusters characterized by high and partial deprivation.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Kampelis, N.; Gobakis, K.; Vagias, V.; Kolokotsa, D.; Standardi, L.; Isidori, D.; Cristalli, C.; Montagnino, F. M.; Paredes, Filippo; Muratore, P.; Venezia, L.; Dracou, Kyprianou; Montenon, Alaric C.; Pyrgou, A.; Karlessi, Theoni; Santamouris, Mat
Evaluation of the performance gap in industrial, residential & tertiary near-Zero energy buildings Journal Article
In: Energy and Buildings, vol. 148, pp. 58–73, 2017, ISSN: 03787788.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems, Sustainable Built Environment
@article{Kampelis2017,
title = {Evaluation of the performance gap in industrial, residential & tertiary near-Zero energy buildings},
author = {N. Kampelis and K. Gobakis and V. Vagias and D. Kolokotsa and L. Standardi and D. Isidori and C. Cristalli and F. M. Montagnino and Filippo Paredes and P. Muratore and L. Venezia and Kyprianou Dracou and Alaric C. Montenon and A. Pyrgou and Theoni Karlessi and Mat Santamouris},
doi = {10.1016/j.enbuild.2017.03.057},
issn = {03787788},
year = {2017},
date = {2017-08-01},
journal = {Energy and Buildings},
volume = {148},
pages = {58--73},
publisher = {Elsevier Ltd},
abstract = {Energy efficiency, advanced controls and renewable energy systems for operating industrial, residential and tertiary sector buildings designed to be Near-Zero Energy are investigated to explore the performance gap. The analysis involves a comparison of energy dynamic and quasi-dynamic models with data from smart monitoring systems, indoor and outdoor environment measurements, power consumption and production data. Specific issues and conclusions have been drawn as the basis for addressing the performance gap between energy efficiency prediction in the design phase and measurements' evaluation in operational phase.},
keywords = {Advanced Renewable Energy Systems, Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Igreja, José M.; Marakkos, Costas; Lemos, João M.
The hydraulic hammer effect in solar tower fluid circuit temperature controller Journal Article
In: IFAC-PapersOnLine, vol. 50, no. 1, pp. 129–134, 2017, ISSN: 24058963.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Igreja2017,
title = {The hydraulic hammer effect in solar tower fluid circuit temperature controller},
author = {José M. Igreja and Costas Marakkos and João M. Lemos},
doi = {10.1016/j.ifacol.2017.08.022},
issn = {24058963},
year = {2017},
date = {2017-07-01},
journal = {IFAC-PapersOnLine},
volume = {50},
number = {1},
pages = {129--134},
publisher = {Elsevier B.V.},
abstract = {This article addresses the possible occurrence of hydraulic hammer effects in solar power towers and the limitations they impose on the response bandwidth of the control loop that governs the valve actuating on heating fluid flow. The partial differential equations that model the traveling waves associated to the hammer effect are solved with different methods. A finite dimensional approximation of the exact solution, by a transfer function with a finite number of poles is obtained. It is concluded that, for the speed of response of the temperature controller associated to the valve, there is no danger of inducing hydraulic hammer effects that can damage the equipment.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Bonanos, Aristides M.
Physical modeling of thermo-compressor for desalination applications Journal Article
In: Desalination, vol. 412, pp. 13–19, 2017, ISSN: 00119164.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Bonanos2017,
title = {Physical modeling of thermo-compressor for desalination applications},
author = {Aristides M. Bonanos},
doi = {10.1016/j.desal.2017.03.004},
issn = {00119164},
year = {2017},
date = {2017-06-01},
journal = {Desalination},
volume = {412},
pages = {13--19},
publisher = {Elsevier B.V.},
abstract = {Steam ejectors, or thermocompressors, are widely used in thermal desalination applications such as Multiple Effect Distillation to reclaim some of the energy discarded in the condensation of vapor from the last effect. Although several empirical models for the entrainment ratio as a metric of performance of the ejectors are available in the literature, large discrepancies are present in their predictions. In the present paper, a physical model for the performance of an ejector is developed, along with an investigation of its off-design performance.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Serghides, Despina; Dimitriou, Stella; Michaelidou, M.; Christofi, M.; Katafygiotou, Martha C.
Achieving Nearly Zero Energy Multi-family Houses in Cyprus through Energy Refurbishments Journal Article
In: Energy and Environmental Engineering, vol. 5, no. 1, pp. 19–28, 2017, ISSN: 2331-6306.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Serghides2017a,
title = {Achieving Nearly Zero Energy Multi-family Houses in Cyprus through Energy Refurbishments},
author = {Despina Serghides and Stella Dimitriou and M. Michaelidou and M. Christofi and Martha C. Katafygiotou},
url = {http://www.hrpub.org},
doi = {10.13189/EEE.2017.050103},
issn = {2331-6306},
year = {2017},
date = {2017-02-01},
journal = {Energy and Environmental Engineering},
volume = {5},
number = {1},
pages = {19--28},
publisher = {Horizon Research Publishing},
abstract = {Residential buildings account for the 63% of the total energy consumption of the building stock. The existing residential building stock exceeds the number of newly built dwellings in most developed countries. Therefore, the energy efficient renovation of the existing housing stock is imperative in order to reduce the building energy consumption. For this reason, European Union ranked the improvement of the buildings' energy performance as a high priority in its research agenda. Following Europe's 20:20:20 objective, this case study investigates refurbishment scenarios in order to achieve Nearly Zero Energy Buildings (NZEBs) in Cyprus. The research focuses on the Multi-family House typology, as classified in the framework of the Intelligent Energy Europe EPISCOPE project and specifically on retrofitting a Multi-family building constructed after 2006. A representative Multi-family building from the corresponding residential building typology in Cyprus was chosen and modelled using the software interface of the official Simplified Building Energy Model tool (iSBEM_Cy) for issuing Energy Performance Certificates (EPC). The study investigates whether it is possible for such a building to reach the Nearly Zero Energy Building standards with the implementation of the national energy performance requirements and identifies the lurking obstacles and challenges through building simulations.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Georgiou, Marios D.; Bonanos, Aristides M.; Georgiadis, John G.
In: Journal of Heat Transfer, vol. 139, no. 1, 2017, ISSN: 15288943.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Georgiou2017a,
title = {Experimental investigation of transitional natural convection in a cube using particle image Velocimetry Part II: Turbulence quantities and proper orthogonal decomposition},
author = {Marios D. Georgiou and Aristides M. Bonanos and John G. Georgiadis},
url = {http://asmedigitalcollection.asme.org/heattransfer/article-pdf/139/1/012503/6214289/ht_139_01_012503.pdf},
doi = {10.1115/1.4034167},
issn = {15288943},
year = {2017},
date = {2017-01-01},
journal = {Journal of Heat Transfer},
volume = {139},
number = {1},
publisher = {American Society of Mechanical Engineers (ASME)},
abstract = {An experimental investigation of transitional natural convection in an air filled cube was conducted in this research. The characteristic dimension of the enclosure was H=0.35 m, and data were collected in the middle plane of the cavity. The Rayleigh number range examined was 5:0 × 107 ≤ Ra ≤ 3:4 × 108. In Part I, the authors presented the mean velocity profiles in the enclosure and conducted heat transfer measurements on the hot wall. An expression between Nu and Ra numbers was concluded and compared against other correlations available in literature. In the present work, the authors present a complete description of the flow in the enclosure by quantifying the low turbulence regime developed in the cavity. This was accomplished by estimating Reynolds stresses, turbulent kinetic energy, vorticity, and swirling strength. Proper orthogonal decomposition (POD) was employed to analyze the flow fields obtained from the experimental data and retain the most salient features of the flow field. This study attempts to close the gap of available experimental data in the literature and provide experimental benchmark data that can be used to validate CFD codes since the estimated error from particle image velocimetry (PIV) measurements is within 1-2%.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Serghides, Despina; Michaelidou, M.; Christofi, M.; Dimitriou, Stella; Katafygiotou, Martha C.
Energy Refurbishment Towards Nearly Zero Energy Multi-family Houses, for Cyprus Journal Article
In: Procedia Environmental Sciences, vol. 38, pp. 11–19, 2017, ISSN: 1878-0296.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Serghides2017c,
title = {Energy Refurbishment Towards Nearly Zero Energy Multi-family Houses, for Cyprus},
author = {Despina Serghides and M. Michaelidou and M. Christofi and Stella Dimitriou and Martha C. Katafygiotou},
doi = {10.1016/J.PROENV.2017.03.068},
issn = {1878-0296},
year = {2017},
date = {2017-01-01},
journal = {Procedia Environmental Sciences},
volume = {38},
pages = {11--19},
publisher = {Elsevier},
abstract = {Following Europe's 20:20:20 objective, this case study investigates refurbishment scenarios in order to achieve Nearly Zero Energy houses, in Cyprus. The study investigates amongst other aspects of the European recast, two approaches that will be decisive for the development of the building sector in Cyprus: The measures and techniques to be implemented in order to achieve nearly Zero Energy Houses (nZEB) in Cyprus and the analysis of cost optimisation. The research focuses on the Multi-Family House typology as classified in the framework of EU project EPISCOPE. The building was modelled using the official governmental software iSBEM_cy tool, according to the European Directives 2002/91/EC and 2010/31/EC. The aim was to upgrade it into a nearly Zero Energy Building (nZEB) by investigating the effectiveness of the energy refurbishment both in terms of energy savings and payback period. Two scenarios were developed in order to evaluate the energy efficiency and the cost effectiveness of the conservation measures. Through analysis of the results, the efficiency of each strategy and technique employed towards minimising the energy consumption and the greenhouse gas emissions was evaluated, in terms also of its cost effectiveness. Furthermore, the results of the research were investigated in order to assess whether the nZEB requirements, as developed by the MECIT, are appropriate for the existing Multi-Family houses in Cyprus and whether alternative strategies may be employed in order to meet the target of nZEB and to reduce effectively the energy consumption and the CO2 emissions.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Blanco, Manuel J.; Miller, S.
Introduction to concentrating solar thermal (CST) technologies Journal Article
In: Advances in Concentrating Solar Thermal Research and Technology, pp. 3–25, 2017, ISBN: 9780081005170.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Blanco2017a,
title = {Introduction to concentrating solar thermal (CST) technologies},
author = {Manuel J. Blanco and S. Miller},
doi = {10.1016/B978-0-08-100516-3.00001-0},
isbn = {9780081005170},
year = {2017},
date = {2017-01-01},
journal = {Advances in Concentrating Solar Thermal Research and Technology},
pages = {3--25},
publisher = {Woodhead Publishing},
abstract = {Concentrating solar thermal (CST) technologies provide promising and diverse opportunities to power the present and future needs of humankind. All solar energy systems are designed to maximise the advantages provided by the sun as an energy source and to minimise the disadvantages. CST technologies collect and concentrate radiation from the sun to transform it into high-temperature thermal energy. This thermal energy can later be used for a plethora of high-temperature thermal applications, such as heating and cooling, process heat, material treatments, electricity production, or chemical processes. This chapter provides a background to the sun as our most valuable energy source, the defining characteristics of CST technologies, and the need and limits associated with the concentration of sunlight. It presents the competing tendencies for the efficient conversion of direct solar radiation into useful thermal energy and the subsequent transformation into work by a heat engine and explains how this leads to the existence of an optimum in the overall light-to-work conversion efficiencies of a CST system in terms either of the operating temperature or the solar radiation concentration capabilities of the system. It also provides an overview of the four main commercially available solar concentrating technologies, along with the current state-of-the art of CST technologies for electricity and process heat generation, solar chemistry, and thermal energy storage, and an overview of the major research efforts around the world to increase the cost-competitiveness of CST technologies and ensure that they will play a major role in the necessary and urgent transition to a much more environmentally friendly world energy system. Finally, the chapter presents the overall concept of this book on advances in concentrating solar power research and technology, which aims to provide an overview beyond the state-of-the-art of CST technologies, with a focus on advanced CST concepts that are emerging as incremental or step-changes in CST technology.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Blanco, Manuel J.; Oikonomou, Th. I.; Drosou, V.
EU-SOLARIS: The European Infrastructure for Concentrated Solar Thermal and Solar Chemistry Technologies Journal Article
In: Procedia Environmental Sciences, vol. 38, pp. 485–491, 2017, ISSN: 18780296.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Blanco2017,
title = {EU-SOLARIS: The European Infrastructure for Concentrated Solar Thermal and Solar Chemistry Technologies},
author = {Manuel J. Blanco and Th. I. Oikonomou and V. Drosou},
doi = {10.1016/j.proenv.2017.03.111},
issn = {18780296},
year = {2017},
date = {2017-01-01},
journal = {Procedia Environmental Sciences},
volume = {38},
pages = {485--491},
publisher = {Elsevier BV},
abstract = {EU-SOLARIS project is a European project, co-funded by the 7th framework programme of the European Union. It is a Research Infrastructure (RI) initiative aimed to foster and promote the scientific and technological development of Concentrating Solar Thermal (CST) and Solar Chemistry technologies. EU-SOLARIS aims to create a new legal entity to explore and implement new and improved rules and procedures for the overall coordination and join exploitation of the main European RI for CST and Solar Chemistry technologies, in order to optimize RI development and Research and technology Development (R&D) coordination. It is expected to be the first of its kind, where industrial needs and private funding will play a significant role. The success of the EU-SOLARIS initiative will be the establishment of a new governance body, aided by sustainable financial models for this unique European large and distributed research infrastructure in the CST and Solar Chemistry fields. EU-SOLARIS is expected to be an important tool in consolidating Europe's leadership in these areas. This will be accomplished by linking the research community and the industry involved in the CST sector and providing them the research infrastructures needed to innovate and advance the state of the art of CST and Solar Chemistry technologies. EU-SOLARIS is also expected to increase the efficient use of the economic and human resources required throughout the European research context and to provide efficient resource management to complement research and to avoid unnecessary technological duplication and repetition. This article presents the vision, objectives, activities and current status of the EU-SOLARIS project and discusses the most important - expected to be achieved - outcomes of the project, which is currently at its last year of its preparatory phase.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Alaric||Fylaktos Montenon, Nestor
First solar air-conditioning system in Cyprus supported by a Fresnel collector Conference
2017.
@conference{nokey,
title = {First solar air-conditioning system in Cyprus supported by a Fresnel collector},
author = {Montenon, Alaric||Fylaktos, Nestor
},
year = {2017},
date = {2017-01-01},
urldate = {2017-01-01},
abstract = {The needs for cooling in summer in Mediterranean countries like Cyprus are huge. Usually mechanical chillers and heat-pumps cover these needs. At a country scale level but, they generate greenhouse emissions because electricity production relies mainly on the use of fossil fuels. Such a situation also concerns many other countries of the Mediterranean region. On the other hand, the solar radiation and more particularly, the mean Direct Normal Irradiation (DNI) is high (from 1994 to 2010, DNI average was 1968 kWh/year/m2. This encourages using solar concentration to directly provides the necessary energy for cooling in summer and heating in winter. The Cyprus Institute installed in 2015 a Fresnel collector on the roof of the KEPA School to support the cooling and heating system of the Novel Technologies Laboratory (NTL), which is a near to zero energy building (NTZEB). The Fresnel collector heats up thermal oil at 170°C, then it exchanges its heat with a pressurized water loop. The heat is stored in a pressurized tank vessel and ensures two hours of autonomy for a cooling absorption chiller. This permits to work also in cloudy conditions or to shift the production to peak loads. The solar cooling system was integrated on the HVAC system of the NTL, in order to reduce its electricity consumption by avoiding the use of the heat-pump or chillers. The absorption chiller produces cooling in summer and is bypassed in winter, and the heat is directly used for heating. This platform is the first one in Cyprus and is a pilot test bench to promote solar cooling in urban environment in Mediterranean countries. Fresnel collectors are light enough to be installed on large urban roofs, around 30 kg/m2, and can heat up fluid to higher temperature than classical flat plate collectors. Storing at higher temperatures than 90°C ensures the
continuity of cooling or heating. Absorption chillers also consume much less electricity than conventional heat-pumps and chillers. Coupling Fresnel collector, thermal storage and absorption chiller technologies permits to reduce dramatically the electricity consumption and also emissions responsible of global warming.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Serghides, Despina; Michaelidou, M.; Demetriou, Stella; Katafygiotou, Martha C.
Energy Refurbishment Towards Nearly Zero-Energy Terrace Houses in the Mediterranean Region Book Chapter
In: Mediterranean Green Buildings and Renewable Energy: Selected Papers from the World Renewable Energy Network's Med Green Forum, Chapter 21, pp. 293–310, Springer, Cham, 2017, ISBN: 9783319307466.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@inbook{Serghides2017b,
title = {Energy Refurbishment Towards Nearly Zero-Energy Terrace Houses in the Mediterranean Region},
author = {Despina Serghides and M. Michaelidou and Stella Demetriou and Martha C. Katafygiotou},
url = {https://link.springer.com/chapter/10.1007/978-3-319-30746-6_21},
doi = {10.1007/978-3-319-30746-6_21},
isbn = {9783319307466},
year = {2017},
date = {2017-01-01},
urldate = {2017-01-01},
booktitle = {Mediterranean Green Buildings and Renewable Energy: Selected Papers from the World Renewable Energy Network's Med Green Forum},
pages = {293--310},
publisher = {Springer, Cham},
chapter = {21},
abstract = {The building sector in Europe is responsible for an estimated 40% of the total energy consumption and 10% of total CO2 emissions. Given an annual rate of 1 % of addition of new buildings in the existing building stock, the energy efficient renovation of the existing housing stock is imperative in order to reduce building energy consumption. It is for this reason that the European Union (EU) ranked the improvement of the energy performance of the old building stock as a high priority on its research agenda. Following Europe's 20:20:20 objective, this case study investigates refurbishment scenarios that will make it possible to achieve nearly zero-energy buildings (nZEBs) in Cyprus. The research focuses on the terrace family house typology in Cyprus, as classified in the framework of the Intelligent Energy Europe, EU project EPISCOPE. The aim is to upgrade an old terrace building built before 1980. It into a nZEB with the implementation of national energy performance requirements, as drafted by the Ministry of Energy, Commerce, Industry and Tourism (MECIT). A representative terrace family building was chosen and modeled using the Simplified Building Energy Model iSBEMcy tool. This is the official government software in Cyprus used for issuing Energy Performance Certificates (EPCs) for the categorisation of the energy class of buildings and the calculation of CO2 emissions according to European Directives 2002/91/EC and 2010/31/EC. The study investigates whether it is possible for an old terrace family building to meet nZEB standards and identifies the lurking obstacles and challenges through building simulations. To this end, various refurbishment scenarios were developed, aimed at fulfilling the MECIT requirements. The efficiency of each strategy and technique employed towards minimising energy consumption and greenhouse gas emissions was evaluated, in terms also of its cost-effectiveness. Furthermore, the results of the research were investigated to assess whether the nZEB requirements, as developed by MECIT, are appropriate for existing terrace family houses in Cyprus and whether alternative strategies may be employed to meet the target of nZEB and to effectively reduce energy consumption and CO2 emissions.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {inbook}
}
Marakkos, Costas; Stiliaris, Efstathios G.; Guillen, Elena; Montenon, Alaric C.; Papanicolas, Costas N.
American Institute of Physics Inc., vol. 1850, no. 1, 2017, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Marakkos2017,
title = {Temperature and thermal power measurements for a helical-coil steam generator in a thermal storage tank of molten solar salt},
author = {Costas Marakkos and Efstathios G. Stiliaris and Elena Guillen and Alaric C. Montenon and Costas N. Papanicolas},
url = {http://aip.scitation.org/doi/abs/10.1063/1.4984532},
doi = {10.1063/1.4984532},
issn = {15517616},
year = {2017},
date = {2017-06-01},
urldate = {2017-06-01},
booktitle = {AIP Conference Proceedings},
volume = {1850},
number = {1},
pages = {150003--1 -- 150003--11},
publisher = {American Institute of Physics Inc.},
abstract = {The steam power output of a helical-col generator is both experimentally and numerically examined using Nusselt number correlations from literature. Validation studies of the correlation models examined herein are performed for a mass flux G of 84 kg.s-1.m-2, power output Q of 15.5 kW, supply pressure P of 0.81 MPa and internal tube-diameter to coil-diameter ratio Di/Dc of 0.027. Existing two-phase models applied with Newton's Law of cooling, lead to an under-prediction of the coil size, namely, the tube length requirement for a specified power output by about 20%.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Montenon, Alaric C.; Fylaktos, Nestor; Montagnino, F. M.; Paredes, Filippo; Papanicolas, Costas N.
Concentrated solar power in the built environment Proceedings
American Institute of Physics Inc., vol. 1850, no. 1, 2017, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems, Energy Planning & Analysis
@proceedings{Montenon2017,
title = {Concentrated solar power in the built environment},
author = {Alaric C. Montenon and Nestor Fylaktos and F. M. Montagnino and Filippo Paredes and Costas N. Papanicolas},
url = {http://aip.scitation.org/doi/abs/10.1063/1.4984402},
doi = {10.1063/1.4984402},
issn = {15517616},
year = {2017},
date = {2017-06-01},
urldate = {2017-06-01},
booktitle = {AIP Conference Proceedings},
volume = {1850},
number = {1},
pages = {040006},
publisher = {American Institute of Physics Inc.},
abstract = {Solar concentration systems are usually deployed in large open spaces for electricity generation; they are rarely used to address the pressing energy needs of the built environment sector. Fresnel technology offers interesting and challenging CSP energy pathways suitable for the built environment, due to its relatively light weight (<30 kg.m-2) and low windage. The Cyprus Institute (CyI) and Consorzio ARCA are cooperating in such a research program; we report here the construction and integration of a 71kW Fresnel CSP system into the HVAC (Heating, Ventilation, and Air Conditioning) system of a recently constructed office & laboratory building, the Novel Technologies Laboratory (NTL). The multi-generative system will support cooling, heating and hot water production feeding the system of the NTL building, as a demonstration project, part of the STS-MED program (Small Scale Thermal Solar District Units for Mediterranean Communities) financed by the European Commission under the European Neighbourhood and Partnership Instrument (ENPI), CBCMED program.},
keywords = {Advanced Renewable Energy Systems, Energy Planning & Analysis},
pubstate = {published},
tppubtype = {proceedings}
}
Votyakov, Evgeny; Papanicolas, Costas N.
Consistent multiphysics simulation of a central tower CSP plant as applied to ISTORE Proceedings
American Institute of Physics Inc., vol. 1850, no. 1, 2017, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Votyakov2017,
title = {Consistent multiphysics simulation of a central tower CSP plant as applied to ISTORE},
author = {Evgeny Votyakov and Costas N. Papanicolas},
url = {http://aip.scitation.org/doi/abs/10.1063/1.4984561},
doi = {10.1063/1.4984561},
issn = {15517616},
year = {2017},
date = {2017-06-01},
urldate = {2017-06-01},
booktitle = {AIP Conference Proceedings},
volume = {1850},
number = {1},
pages = {160027--1 -- 160027--8},
publisher = {American Institute of Physics Inc.},
abstract = {We present a unified consistent multiphysics approach to model a central tower CSP plant. The framework for the model includes Monte Carlo ray tracing (RT) and computational fluid dynamics (CFD) components utilizing the OpenFOAM C++ software library. The RT part works effectively with complex surfaces of engineering design given in CAD formats. The CFD simulation, which is based on 3D Navier-Stokes equations, takes into account all possible heat transfer mechanisms: radiation, conduction, and convection. Utilizing this package, the solar field of the experimental Platform for Research, Observation, and TEchnological Applications in Solar Energy (PROTEAS) and the Integrated STOrage and Receiver (ISTORE), developed at the Cyprus Institute, are being examined.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Bonanos, Aristides M.; Georgiou, Marios C.; Guillen, Elena; Papanicolas, Costas N.
CSP+D: The case study at the PROTEAS facility Proceedings
American Institute of Physics Inc., vol. 1850, no. 1, 2017, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Bonanos2017a,
title = {CSP+D: The case study at the PROTEAS facility},
author = {Aristides M. Bonanos and Marios C. Georgiou and Elena Guillen and Costas N. Papanicolas},
url = {http://aip.scitation.org/doi/abs/10.1063/1.4984564},
doi = {10.1063/1.4984564},
issn = {15517616},
year = {2017},
date = {2017-06-01},
urldate = {2017-06-01},
booktitle = {AIP Conference Proceedings},
volume = {1850},
number = {1},
pages = {170001},
publisher = {American Institute of Physics Inc.},
abstract = {The PROTEAS facility, located on the southern coastline of Cyprus, hosts an experiment aiming to investigate the co-generation of electricity and desalinated seawater from concentrated solar power, providing a unique opportunity to test on a pilot-scale the CSP+D co-generation scheme. In the present paper, heat sources that would otherwise be rejected to the environment are explored along with their potential thermal contribution, and the performance of a thermal distillation unit utilizing these sources is investigated. Several low-temperature heat sources are available to be used for seawater preheating, whereas the novelty of the design of the receiver allows for its thermal losses to be harnessed and used to drive the desalination cycle.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Neophytou, Marina; Mouzourides, Petros; Marakkos, Costas
An experimental investigation of thermal circulation in urban street canyons Proceedings
Nantes, 2017.
Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Neophytou2017,
title = {An experimental investigation of thermal circulation in urban street canyons},
author = {Marina Neophytou and Petros Mouzourides and Costas Marakkos},
url = {https://www.researchgate.net/publication/323689201},
year = {2017},
date = {2017-01-01},
urldate = {2017-01-01},
booktitle = {International Workshop on Physical Modelling of Flow and Dispersion Phenomena Dynamics Urban and Coastal Atmosphere},
address = {Nantes},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Serghides, Despina; Dimitriou, Stella; Kyprianou, Ioanna; Papanicolas, Costas N.
Elsevier Ltd, vol. 134, 2017, ISSN: 18766102.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@proceedings{Serghides2017,
title = {The Adaptive Comfort Factor in Evaluating the Energy Performance of Office Buildings in the Mediterranean Coastal Cities},
author = {Despina Serghides and Stella Dimitriou and Ioanna Kyprianou and Costas N. Papanicolas},
doi = {10.1016/j.egypro.2017.09.588},
issn = {18766102},
year = {2017},
date = {2017-01-01},
urldate = {2017-01-01},
booktitle = {Energy Procedia},
volume = {134},
pages = {683--691},
publisher = {Elsevier Ltd},
abstract = {This paper examines the thermal comfort conditions during summer and winter in an existing office building in an urban context. It investigates and correlates the results obtained from a questionnaire survey, conducted during summer and winter, with the two comfort models - for mechanically ventilated spaces and non-mechanically ventilated ones - in order to determine the most appropriate one for the energy performance evaluation of the office buildings in the coastal Mediterranean region. The study is carried out within the framework of the Urban Europe project Smart Urban Isle and it specifically refers to the Cyprus case study. The project considers the bioclimatic design of the buildings and of their urban environment, as well as potential energy management systems, in order to define and evaluate urban isles as a basic unit of energy measurement for Smart Cities. The Cyprus case study focuses on the impact of the thermal comfort Standards on the energy performance evaluation of the buildings and it promotes the sustainable and energy efficient design by selecting the most appropriate Standard to assess the thermal comfort for occupants. .},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {proceedings}
}
Bonanos, Aristides M.; Votyakov, Evgeny
Sensitivity analysis for thermocline thermal storage tank design Journal Article
In: Renewable Energy, vol. 99, pp. 764–771, 2016, ISSN: 18790682.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Bonanos2016,
title = {Sensitivity analysis for thermocline thermal storage tank design},
author = {Aristides M. Bonanos and Evgeny Votyakov},
doi = {10.1016/j.renene.2016.07.052},
issn = {18790682},
year = {2016},
date = {2016-12-01},
journal = {Renewable Energy},
volume = {99},
pages = {764--771},
publisher = {Elsevier Ltd},
abstract = {Concentrated solar power coupled with thermal energy storage is a promising approach for providing the world with clean, renewable, sustainable and cost-competitive power on a large scale. Thermocline thermal energy storage has been proposed as an efficient and cost-competitive alternative to the traditional two-tank design. The thermocline thickness is directly linked to the efficiency of the storage tank. Sensitivity analysis is thus applied to a model of the thermocline thickness to identify the parameters that influence it the most. Results indicate that the tank height along with the thermophysical properties of the solid filler material influence the tank efficiency the most, with fluid properties and having a secondary effect.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Serghides, Despina; Dimitriou, Stella; Katafygiotou, Martha C.
Towards European targets by monitoring the energy profile of the Cyprus housing stock Journal Article
In: Energy and Buildings, vol. 132, pp. 130–140, 2016, ISSN: 03787788.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Serghides2016,
title = {Towards European targets by monitoring the energy profile of the Cyprus housing stock},
author = {Despina Serghides and Stella Dimitriou and Martha C. Katafygiotou},
doi = {10.1016/j.enbuild.2016.06.096},
issn = {03787788},
year = {2016},
date = {2016-11-01},
journal = {Energy and Buildings},
volume = {132},
pages = {130--140},
publisher = {Elsevier Ltd},
abstract = {Energy efficient renovation of the existing housing stock is imperative to reduce building energy consumption since the building sector in Europe accounts for an estimated 40% of the energy used from all sectors and more than 80% of the buildings today will still exist in 2020. Following Europe's energy objectives, the paper investigates, based on the European Union Directives, the current energy refurbishment rates and examines the future energy performance of the Cyprus housing stock, in order to determine if they are adequate in achieving the Europe energy targets. The research focuses on pilot houses in Cyprus, which include dwellings from all typologies as classified, according to the IEE project EPISCOPE. The houses were monitored and based on the collected data and the performed simulations, their current and future energy performance are presented in the form of Energy Performance Indicators (EPIs). From the study, it is observed that with the current trends the national climate protection energy targets are unattainable. This is mainly due to the inadequate rate and depth of energy refurbishment of the existing housing stock and the ineptness of the Directives to address effectively the reduction of the cooling energy needs in the new constructions.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Georgiou, Marios C.; Bonanos, Aristides M.
A transient model for forward and parallel feed MED Journal Article
In: Desalination and Water Treatment, vol. 57, no. 48-49, pp. 23119–23131, 2016, ISSN: 19443986.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Georgiou2016,
title = {A transient model for forward and parallel feed MED},
author = {Marios C. Georgiou and Aristides M. Bonanos},
url = {https://www-tandfonline-com.proxy2.library.illinois.edu/doi/abs/10.1080/19443994.2016.1180480},
doi = {10.1080/19443994.2016.1180480},
issn = {19443986},
year = {2016},
date = {2016-10-01},
journal = {Desalination and Water Treatment},
volume = {57},
number = {48-49},
pages = {23119--23131},
publisher = {Taylor and Francis Inc.},
abstract = {The aim of this paper is to investigate the performance of a multiple effect distillation (MED) unit potentially coupled to a concentrated solar power plant and validate the results with the predictions of a dynamic model that was developed for this purpose. A small-scale (10 kWthermal) four effect distillation system was designed and built to demonstrate proof of principle of the concentrating solar power–desalinating sea water system integration. In order to fully characterize this small-scale MED unit, an understanding of the performance for steady state and transient conditions is required. Initially experiments were performed in a steady state situation, various parameters were examined and the experimental findings have already been published. After the initial experimental findings of the steady state operation, the performance of this unit was also investigated for transient conditions. The experimental procedure followed was identical as in the steady state conditions, with the main difference being the variation in the heat input supply to the system as a function of time. For the present study, the heat input supplied to the unit varied between 5 and 10 kWthermal. At the same time, a dynamic model was also developed in order to predict the performance of this unit in consecutive time steps of operation. The performance was calculated in terms of performance ratio (the ratio of the distillate product flow rate to the feeding steam flow rate) and the model results were validated against the experimental findings. The results showed that there is a really good match between the experimental data and the predicted ones from the model.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Navarro, Ana A.; Ramírez, Lourdes; Domínguez, Pablo; Blanco, Manuel J.; Polo, Jesus; Zarza, Eduardo
Review and validation of Solar Thermal Electricity potential methodologies Journal Article
In: Energy Conversion and Management, vol. 126, pp. 42–50, 2016, ISSN: 01968904.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Navarro2016,
title = {Review and validation of Solar Thermal Electricity potential methodologies},
author = {Ana A. Navarro and Lourdes Ramírez and Pablo Domínguez and Manuel J. Blanco and Jesus Polo and Eduardo Zarza},
doi = {10.1016/j.enconman.2016.07.070},
issn = {01968904},
year = {2016},
date = {2016-10-01},
journal = {Energy Conversion and Management},
volume = {126},
pages = {42--50},
publisher = {Elsevier Ltd},
abstract = {With the strong dependence of national economies on energy, interest in solar energy potential assessments is increasing in countries with high solar radiation levels. This article reviews four methodologies proposed in the literature by four different organizations (IDAE, Greenpeace, NREL, and DLR) and proposes a new one (LRS) for assessing the potential of Solar Thermal Electricity (STE) generation in a given country. Derived from these five methodologies, nine cases are studied (IDAE, GP2, NREL1, NREL3, DLR2, DLR2′, LRS1, LRS2, and LRS3). In this study, we followed a two-step STE potential assessment procedure. In the first step, suitable areas for locating STE plants in the country are identified. In the second step, STE plants are assumed to be built and operated in the suitable areas selected in the first step, and the annual electricity generated by these hypothetical plants is estimated. To compare the assessed methodologies, all cases have been applied to the same test country: Spain. Because a relatively large number of commercial STE plants are in operation in Spain, the location of these commercial plants was used to define a simple but effective validation test. A validation process is proposed for the IN-OUT decision based on the buffers containing each existing STE plant. Inside each buffer, a mix of suitable and unsuitable pixels is often included. Thus, the process starts with the decision whether a plant could be considered “IN” the suitable area or not. After the evaluation of the percentage of pixels considered as suitable inside the buffer, and comparing with only the power block pixel location, the second option was selected since it provides good results and simplifies any further treatment. The validation process also considers a minimum of near 90% of the STE plants “IN” suitable areas in order to consider a specific case valid. This means that if a case leaves out more than 10% of the real STE plants, it was considered far from reality and rejected. Cases IDAE, NREL3, DLR2, and the new LRS3 have been validated using the described validation procedure and the last three have very close results with similar levels; this is an important outcome that aims to compare potential assessments performed in different countries by different institutions.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Grigoriev, Victor; Corsi, Clotilde; Blanco, Manuel J.
Fourier sampling of sun path for applications in solar energy Journal Article
In: AIP Conference Proceedings, vol. 1734, no. 1, pp. 020008, 2016, ISSN: 0094-243X.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Grigoriev2016,
title = {Fourier sampling of sun path for applications in solar energy},
author = {Victor Grigoriev and Clotilde Corsi and Manuel J. Blanco},
url = {https://aip.scitation.org/doi/abs/10.1063/1.4949032},
doi = {10.1063/1.4949032},
issn = {0094-243X},
year = {2016},
date = {2016-05-01},
journal = {AIP Conference Proceedings},
volume = {1734},
number = {1},
pages = {020008},
publisher = {AIP Publishing LLCAIP Publishing},
abstract = {A systematic approach is presented for the sampling and interpolation over sun path. The annual sun path is described in terms of the ecliptic longitude and hour angle so that all possible position...},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Georgiou, Marios C.; Bonanos, Aristides M.; Georgiadis, John G.
Evaluation of a solar powered distillation unit as a mitigation to water scarcity and climate change in Cyprus Journal Article
In: Desalination and Water Treatment, vol. 57, no. 5, pp. 2325–2335, 2016, ISSN: 19443986.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Georgiou2016a,
title = {Evaluation of a solar powered distillation unit as a mitigation to water scarcity and climate change in Cyprus},
author = {Marios C. Georgiou and Aristides M. Bonanos and John G. Georgiadis},
url = {https://www-tandfonline-com.proxy2.library.illinois.edu/doi/abs/10.1080/19443994.2014.989637},
doi = {10.1080/19443994.2014.989637},
issn = {19443986},
year = {2016},
date = {2016-01-01},
journal = {Desalination and Water Treatment},
volume = {57},
number = {5},
pages = {2325--2335},
publisher = {Taylor and Francis Inc.},
abstract = {Cyprus, an island facing water scarcity periods throughout its history, has to cope with even more intense periods due to climate change as it is predicted by several climate models. The aim of the present study is to evaluate the performance of a single-effect distillation unit and the potential of its integration with a concentrated solar power system as a mitigation technique to the water scarcity. Specifically, a single-effect distillation unit for seawater desalination was developed and its performance in terms of performance ratio (PR) (ratio of distillate product and steam fed to the unit) was experimentally investigated. The main parameters examined were the thermal input power, and the temperature and flow rate of the inlet seawater. For several seawater flow rates, three different initial heat loads were used (Tst,1, Tst,2, Tst,3). Experiments were repeated for two seawater inlet temperatures, Tsw1, Tsw2. A one-dimensional model based on conservation of mass and energy was developed to predict the performance of the device. The results showed that lower heat input load results to a higher value of the PR of the unit and also under constant heat load, a higher temperature of the seawater lead to higher distillate product. The developed model adequately captured the behavior of the device. Thus, it is concluded that such a unit should be expanded into a multiple-effect unit and also implemented with a concentrated solar power system as a mitigation technique to the water scarcity of the island.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Katafygiotou, Martha C.; Serghides, Despina
Schools: Trends and Perspectives Book Chapter
In: Energy Performance of Buildings: Energy Efficiency and Built Environment in Temperate Climates, pp. 251–268, Springer, Cham, 2016, ISBN: 9783319208312.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@inbook{Katafygiotou2016,
title = {Schools: Trends and Perspectives},
author = {Martha C. Katafygiotou and Despina Serghides},
url = {https://link.springer.com/chapter/10.1007/978-3-319-20831-2_13},
doi = {10.1007/978-3-319-20831-2_13},
isbn = {9783319208312},
year = {2016},
date = {2016-01-01},
urldate = {2016-01-01},
booktitle = {Energy Performance of Buildings: Energy Efficiency and Built Environment in Temperate Climates},
pages = {251--268},
publisher = {Springer, Cham},
abstract = {This chapter's emphasis is on existing school buildings, with an overview of the European and, more specifically, the Mediterranean region. Following the overview of schools in the Mediterranean region, the study focuses on secondary schools in Cyprus. It identifies the prevailing building practices in school construction with specific reference to the schools in Cyprus. The construction and energy consumption details of the secondary school buildings in Cyprus are also presented. Indoor comfort and energy efficiency are analyzed through questionnaires, surveys, interviews, and simulations on specific pilot school buildings. The field studies are conducted to evaluate the indoor thermal conditions during the students' classes. Further investigation of the energy efficiency of schools is carried out through building simulations. Existing situations, current trends and tendencies of schools provide essential information to facilitate the energy performance assessment of the building stock and to highlight the potential of energy savings and the upgrading of their indoor comfort.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {inbook}
}
Montenon, Alaric C.; Paredes, Filippo; Giaconia, Alberto; Fylaktos, Nestor; Bono, Silvana Di; Papanicolas, Costas N.; Montagnino, F. M.
Solar multi-generation in the Mediterranean area, the experience of the STS-MED project Proceedings
La Palma de Mallorca, 2016.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems, Energy Planning & Analysis
@proceedings{Montenon2016,
title = {Solar multi-generation in the Mediterranean area, the experience of the STS-MED project},
author = {Alaric C. Montenon and Filippo Paredes and Alberto Giaconia and Nestor Fylaktos and Silvana Di Bono and Costas N. Papanicolas and F. M. Montagnino},
url = {http://proceedings.ises.org},
doi = {10.18086/eurosun.2016.05.06},
year = {2016},
date = {2016-10-01},
urldate = {2016-10-01},
booktitle = {EUROSUN},
address = {La Palma de Mallorca},
abstract = {A solar multi-generation approach has been implemented through four demonstrative plants in Italy, Cyprus, Jordan and Egypt based upon solar concentrating collectors. Different design options have been developed, including technologies that have been adapted and downsized from the utility scale of CSP plants, with the aim to be integrated at building, settlement and community scale. Demo plants have been conceived as living labs in order to support the further development of the technologies in a real-life environment, supporting the local smart specialization strategies in collaboration with SMEs, local stakeholders and citizens.},
keywords = {Advanced Renewable Energy Systems, Energy Planning & Analysis},
pubstate = {published},
tppubtype = {proceedings}
}
Papanicolas, Costas N.; Bonanos, Aristides M.; Georgiou, Marios C.; Guillen, Elena; Jarraud, Nicolas; Marakkos, Costas; Montenon, Alaric C.; Stiliaris, Efstathios G.; Tsioli, E.; Tzamtzis, George; Votyakov, Evgeny
CSP cogeneration of electricity and desalinated water at the Pentakomo field facility Proceedings
American Institute of Physics Inc., vol. 1734, no. 1, 2016, ISSN: 15517616.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@proceedings{Papanicolas2016,
title = {CSP cogeneration of electricity and desalinated water at the Pentakomo field facility},
author = {Costas N. Papanicolas and Aristides M. Bonanos and Marios C. Georgiou and Elena Guillen and Nicolas Jarraud and Costas Marakkos and Alaric C. Montenon and Efstathios G. Stiliaris and E. Tsioli and George Tzamtzis and Evgeny Votyakov},
url = {http://aip.scitation.org/doi/abs/10.1063/1.4949196},
doi = {10.1063/1.4949196},
issn = {15517616},
year = {2016},
date = {2016-05-01},
urldate = {2016-05-01},
booktitle = {AIP Conference Proceedings},
volume = {1734},
number = {1},
pages = {100008--1 -- 100008--8},
publisher = {American Institute of Physics Inc.},
abstract = {The Cyprus Institute's Pentakomo Field Facility (PFF) is a major infrastructure for research, development and testing of technologies relating to concentrated solar power (CSP) and solar seawater desalination. It is located at the south coast of Cyprus near the sea and its environmental conditions are fully monitored. It provides a test facility specializing in the development of CSP systems suitable for island and coastal environments with particular emphasis on small units (<25 MWth) endowed with substantial storage, suitable for use in isolation or distributed in small power grids. The first major experiment to take place at the PFF concerns the development of a pilot/experimental facility for the co-generation of electricity and desalinated seawater from CSP. Specifically, the experimental plant consists of a heliostat-central receiver system for solar harvesting, thermal energy storage in molten salts followed by a Rankine cycle for electricity production and a multiple-effect distillation (MED) unit for desalination.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {proceedings}
}
Votyakov, Evgeny; Bonanos, Aristides M.
Algebraic model for thermocline thermal storage tank with filler material Journal Article
In: Solar Energy, vol. 122, pp. 1154–1157, 2015, ISSN: 0038092X.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Votyakov2015,
title = {Algebraic model for thermocline thermal storage tank with filler material},
author = {Evgeny Votyakov and Aristides M. Bonanos},
doi = {10.1016/j.solener.2015.10.047},
issn = {0038092X},
year = {2015},
date = {2015-12-01},
journal = {Solar Energy},
volume = {122},
pages = {1154--1157},
publisher = {Elsevier Ltd},
abstract = {A recent perturbation model (Votyakov and Bonanos, 2014) is solved with an algebraic approximation. Results are in agreement with independent numerical results of Yang and Garimella (2010). The algebraic model reveals several scaling ratios as well as a non-monotonic behavior of the thermocline thickness as a function of fluid Reynolds number.},
keywords = {Advanced Renewable Energy Systems},
pubstate = {published},
tppubtype = {article}
}
Theophilou, M. K.; Serghides, Despina
Estimating the characteristics of the Urban Heat Island Effect in Nicosia, Cyprus, using multiyear urban and rural climatic data and analysis Journal Article
In: Energy and Buildings, vol. 108, pp. 137–144, 2015, ISSN: 0378-7788.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Theophilou2015,
title = {Estimating the characteristics of the Urban Heat Island Effect in Nicosia, Cyprus, using multiyear urban and rural climatic data and analysis},
author = {M. K. Theophilou and Despina Serghides},
doi = {10.1016/J.ENBUILD.2015.08.034},
issn = {0378-7788},
year = {2015},
date = {2015-12-01},
journal = {Energy and Buildings},
volume = {108},
pages = {137--144},
publisher = {Elsevier},
abstract = {In order to detect the Urban Heat Island Effect and its consequences on heating and cooling degree days, an analysis of the hourly meteorological measurements during the period 1983-2011 for the city of Nicosia in Cyprus has been conducted. The stations used were located in the City Center (station no.640) and the area of Athalassa (station no. 666) in Nicosia, which are low altitude Mediterranean climatic stations. The temperature change that has been identified on both stations has an impact on heating and cooling degree days. Cooling degree days follow a statistically positive trend for both stations. Heating degree days follow a negative trend for both stations, with the Nicosia City Center station being the only one with a statistically significant trend. Additional cooling degree days have been calculated for the station of Nicosia City Center during the summer period June-August, and less heating degree days during the winter period December-February, in comparison with the Athalassa Area Station, highlighting the existence of the Urban Heat Island Effect. The Urban Heat Island Effect is determined to be stronger during the winter period, mainly in February. Finally, the mean differences, as calculated, in cooling and heating degree days follow a non-statistically significant trend.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Serghides, Despina; Dimitriou, Stella; Katafygiotou, Martha C.; Michaelidou, M.
Energy Efficient Refurbishment towards Nearly Zero Energy Houses, for the Mediterranean Region Journal Article
In: Energy Procedia, vol. 83, pp. 533–543, 2015, ISSN: 1876-6102.
Abstract | Links | BibTeX | Tags: Sustainable Built Environment
@article{Serghides2015c,
title = {Energy Efficient Refurbishment towards Nearly Zero Energy Houses, for the Mediterranean Region},
author = {Despina Serghides and Stella Dimitriou and Martha C. Katafygiotou and M. Michaelidou},
doi = {10.1016/J.EGYPRO.2015.12.173},
issn = {1876-6102},
year = {2015},
date = {2015-12-01},
journal = {Energy Procedia},
volume = {83},
pages = {533--543},
publisher = {Elsevier},
abstract = {The building sector in Europe is responsible for an estimated 40% of the total energy consumption and 10% of the total CO2 emissions. Given that new buildings represent only about 1% of the housing stock annually, it is estimated that more than 80% of the existing buildings will still exist in 2020. Therefore, the energy efficient renovation of the existing housing stock is imperative in order to reduce the building energy consumption. It is for this reason that the European Union ranked the improvement of the energy performance of the old building stock, as a high priority in its research agenda. Following Europe's 20:20:20 objective, this case study investigates refurbishment scenarios in order to achieve Nearly Zero Energy houses, in Cyprus. The research focuses on the Single Family House typology, as classified in previous studies for Cyprus, in the framework of the IEE, EU project EPISCOPE and specifically on retrofitting an old house that was built before 1980. The aim is to upgrade it into a Nearly Zero Energy Building (nZEB) with the implementation of the national energy performance requirements, as drafted by the Ministry of Energy, Commerce, Industry and Tourism (MECIT). Following the EPISCOPE project methodology, a representative Single Family House from the corresponding residential building typology in Cyprus was chosen and modeled using the iSBEMcy tool. This is the official governmental software in Cyprus used for issuing Energy Performance Certificates (EPC), for the categorization of the energy class of the building and the calculation of the CO2 emissions according to the European Directives 2002/91/EC and 2010/31/EC. The study investigates whether it is possible for an old Single Family House to reach the nZEB standards and identifies the lurking obstacles and challenges, through building simulations. To this end, various refurbishment scenarios were developed, with the implementation of strategies aiming at fulfilling the MECIT requirements. Through analysis of the results, the efficiency of each strategy and technique employed towards minimising the energy consumption and the greenhouse gas emissions was evaluated, in terms also of its cost effectiveness. Furthermore, the results of the research were investigated in order to assess whether the nZEB requirements, as developed by the MECIT, are appropriate for the existing single-family houses in Cyprus and whether alternative strategies may be employed in order to meet the target of nZEB and to reduce effectively the energy consumption.},
keywords = {Sustainable Built Environment},
pubstate = {published},
tppubtype = {article}
}
Kakoniti, Androula; Georgiou, Gregoria; Marakkos, Costas; Kumar, Prashant; Neophytou, Marina
The role of materials selection in the urban heat island effect in dry mid-latitude climates Journal Article
In: Environmental Fluid Mechanics 2015 16:2, vol. 16, no. 2, pp. 347–371, 2015, ISSN: 1573-1510.
Abstract | Links | BibTeX | Tags: Advanced Renewable Energy Systems
@article{Kakoniti2015,
title = {The role of materials selection in the urban heat island effect in dry mid-latitude climates},
author = {Androula Kakoniti and Gregoria Georgiou and Costas Marakkos and Prashant Kumar and Marina Neophytou},
url = {https://link.springer.com/article/10.1007/s10652-015-9426-z},
doi = {10.1007/S10652-015-9426-Z},
issn = {1573-1510},
year = {2015},
date = {2015-09-01},
journal = {Environmental Fluid Mechanics 2015 16:2},
volume = {16},
number = {2},
pages = {347--371},
publisher = {Springer},
abstract = {This work investigates the role of materials selected for different urban surfaces (e.g. on building walls, roofs and pavements) in the intensity of the urban heat island (UHI) phenomenon. Three archetypal street-canyon geometries are considered, reflecting two-dimensional canyon arrays with frontal packing densities ($łambda$f) of 0.5, 0.25 and 0.125 under direct solar radiation and ground heating. The impact of radiative heat transfer in the urban environment is examined for each of the different built packing densities. A number of extreme heat scenarios were modelled in order to mimic conditions often found at low- to mid-latitudes dry climates. The investigation involved a suite of different computational fluid dynamics (CFD) simulations using the Reynolds-Averaged Navier–Stokes equations for mass and momentum coupled with the energy equation as well as using the standard k-$epsilon$ turbulence model. Results indicate that a higher rate of ventilation within the street canyon is observed in areas with sparser built packing density. However, such higher venti