Article
Energy & Fuels
A. Moreno, D. Chemisana, E. F. Fernandez
Summary: The study designed a high-concentration PVT module and simulated it in two representative cities in Spain and the United States. The results showed that the module performed well, meeting 95% to 100% of domestic hot water demand and over 55% of space heating, cooling, and electricity demand. The comparison with a standard PVT solar collector indicated that the HCPVT system clearly outperformed in terms of electricity and thermal energy production.
Article
Thermodynamics
Mohammad Firoozzadeh, Amir Hossein Shiravi, Marzieh Lotfi, Saule Aidarova, Altynay Sharipova
Summary: This study investigated the use of carbon black nanoparticles in water as a coolant for photovoltaic modules, finding that a concentration of 0.21 wt% of carbon black nanoparticles showed the best cooling performance, resulting in a 7% increase in output power compared to pure water coolant.
Review
Green & Sustainable Science & Technology
B. Anand, R. Shankar, S. Murugavelh, W. Rivera, K. Midhun Prasad, R. Nagarajan
Summary: This study reviews the integration of photovoltaic thermal collectors with desalination technologies, focusing on utilizing electricity and heat from the collector to reduce costs, primary energy consumption, and improve system performance. Future opportunities for improvement and exploration of photovoltaic thermal-driven desalination systems are discussed, along with the potential of using the collectors as energy sources for other desalination technologies. Comparative analysis shows that the overall performance of photovoltaic thermal coupled desalination systems is better than systems coupled with separate photovoltaic panels or solar thermal collectors.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Green & Sustainable Science & Technology
Shuhui Wang, Yongguang Yu, Wei Hu
Summary: Photovoltaic modeling research is gaining interest, with a focus on accuracy for system design and control. A novel hybrid optimization algorithm HROA is proposed for parameter extraction, offering efficiency and no need for parameter tuning.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Construction & Building Technology
Wenping Du, Ming Li, Yunfeng Wang, Xun Ma, Chengzhi Hu, Ying Zhang, Zhuoli Zhang
Summary: A novel method for constructing a distributed solar photovoltaic direct-drive cold storage system is proposed, where the key factors affecting system performance and energy efficiency are studied in detail. Experimental results show that the solar-cold energy conversion efficiency of the system is negatively correlated with solar radiation intensity and varies under different weather conditions.
BUILDING AND ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Mauricio Carmona, Alberto Palacio Bastos, Jose Doria Garcia
Summary: A novel thermal energy storage and recovery system was proposed to improve the overall efficiency of solar energy collectors by integrating a phase change material in a hybrid module. Experimental comparisons showed that the daily electrical efficiency of the hybrid PVT-PCM module increased by 7.43% compared to the traditional PV module, resulting in a total increase of 20.45% in the capability to extract useful energy from the sun.
Article
Energy & Fuels
Arash Kazemian, Ali Salari, Tao Ma, Hao Lu
Summary: A novel combined photovoltaic thermal system is proposed to solve the low outflow temperature and lack of electrical production drawbacks in conventional systems. The performance of different hybrid nanofluids is compared, and it is found that the multiwall carbon-silicon carbide hybrid nanofluid has the best performance. Moreover, the components of the solar collector in the combined system produce more entropy generation.
Article
Construction & Building Technology
Francois Veynandt, Peter Klanatsky, Helmut Plank, Christian Heschl
Summary: Hybrid photovoltaic-thermal (PVT) solar collectors combine photovoltaic and thermal technologies to produce both electricity and thermal energy. Accurate information about their thermal and electrical yields under real operating conditions is necessary for applying an optimal control approach. Traditional modelling methods may not fully capture the actual operating and installation conditions, which makes a data-driven approach based on grey box modelling, automated parameter identification, and numerical optimization important. This paper presents several PVT grey-box model structures and analyzes their accuracy and reliability using own experimental data, aiming to identify the most appropriate model variants for optimal control application within a data-driven framework.
ENERGY AND BUILDINGS
(2023)
Article
Materials Science, Multidisciplinary
Jinsha Song, Jiliang Mu, Zhengyang Li, Chengpeng Feng, Wenping Geng, Xiaojuan Hou, Jian He, Xiujian Chou
Summary: This study presents a transparent composite film that serves as an antireflective coating for solar cells and an enhanced triboelectric layer for a raindrop-harvesting nanogenerator. By incorporating micro-pyramid arrays and a conductive ionic liquid, the film effectively improves the performance of both the solar cells and the nanogenerator. This research provides a new technical approach for efficient multiclimate energy harvesting.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Energy & Fuels
Diogo Cabral
Summary: This study developed innovative concentrating PVT solar collector concepts based on a CPC geometry concept to decrease the energy/performance gap between CPVT and PV/ST solar collectors. By using an updated reflector geometry, the electrical peak efficiency of CPVT was increased and the optical efficiency was improved. The energy/performance gap between a system composed of PV + ST technologies and a CPC-PVT has been significantly reduced.
Article
Energy & Fuels
Asier Sanz, Antonio J. Martin, Ainhoa Pereda, Eduardo Roman, Pedro Ibanez, Raquel Fuente
Summary: This study focuses on the dual use of solar resources through the combination of hybrid PVT collectors and heat pumps with predictive control strategies. The experiment conducted in a real single-family house shows high shares of renewable energy, self-sufficiency ratio, and efficient utilization of heat pumps and solar energy.
Article
Green & Sustainable Science & Technology
Miso Jurcevic, Sandro Nizetic, Ivo Marinic-Kragic, Duje Coko, Muslum Arici, Effrosyni Giama, Agis Papadopoulos
Summary: A new hybrid cooling strategy was proposed for a free-standing photovoltaic panel, focusing on a novel photovoltaic-thermal collector design. Both passive and active cooling methods were utilized, with a smart regulation system, and detailed design information for the novel collector was elaborated. Experimentation and numerical analysis were conducted to investigate convective heat transfer coefficients in varying wind conditions, supporting the development of an experimental setup in Mediterranean climates. The research outcomes are essential for finalizing the experimental setup, and the proposed collector concept could be suitable for building applications in energy systems.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Engineering, Environmental
M. Vivar, M. Fuentes, J. Torres, M. J. Rodrigo
Summary: The study evaluated the efficacy of the SolWat hybrid system for solar water disinfection and photovoltaic energy generation in tertiary treatment plants, showing that it can achieve microbial disinfection and allow for water reuse in various applications. Additionally, the research found that Clostridium perfringens was the most resistant bacteria compared to E. coli and Enterococcus faecalis.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Mustapha A. Obalanlege, Jingyuan Xu, Christos N. Markides, Yasser Mahmoudi
Summary: This study investigates the techno-economic performance of a hybrid photovoltaic-thermal solar-assisted heat-pump system for a three-bedroom terraced house in Belfast, United Kingdom. The results show that a 12-panel PVT array covering an area of 16.3 m2 is the most economically viable configuration, meeting over 30% of the household's electrical demand and over 80% of the hot-water demand while reducing the electricity consumption of the heat pump.
Article
Engineering, Mechanical
H. Asadian, A. Mahdavi, T. B. Gorji, M. Gorji-Bandpy
Summary: The study investigates a hybrid system that utilizes wasted thermal energy from photovoltaic modules, known as photovoltaic-thermal (PVT) hybrid systems. By using nanofluids and copper tubes, the system's thermal efficiency and electrical efficiency can be significantly improved.
EXPERIMENTAL TECHNIQUES
(2022)
Article
Physics, Multidisciplinary
Jaime Madrid, Jaume Gine, Daniel Chemisana
Summary: This study explains the double-slit experiment by considering the sea of virtual particles near the slits, using both the Heisenberg uncertainty principle and the Kubo-Martin-Schwinger relation. Both approaches yield analogous results when applied to the experiment.
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
(2021)
Article
Energy & Fuels
J. Kret, J. Tournet, S. Parola, F. Martinez, D. Chemisana, R. Morin, M. de la Mata, N. Fernandez-Delgado, A. A. Khan, S. Molina, Y. Rouillard, E. Tournie, Y. Cuminal
Summary: This study focuses on the performance of AlInAsSb/GaSb tandem photovoltaic cells, achieving an efficiency of 5.2% under 1-sun illumination with limitations due to the properties of the AlInAsSb quaternary alloy.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Green & Sustainable Science & Technology
Chr. Lamnatou, R. Vaillon, S. Parola, D. Chemisana
Summary: This article provides an overview of photovoltaic/thermal systems categorized by the temperature of the working fluid: low-temperature, medium-temperature, and high-temperature systems. The studies cover a wide range of applications, including building-integrated, domestic, and industrial applications. Additionally, the article critically discusses key challenges related to materials, efficiencies, and technologies in the field of photovoltaic/thermal systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Thermodynamics
Jose M. Saura, Daniel Chemisana, Pedro M. Rodrigo, Florencia M. Almonacid, Eduardo F. Fernandez
Summary: The study shows that shading causes additional spatial and spectral non-uniformities, which can be reduced by using homogenizers, with SILO-Pyramid providing the best results.
Article
Green & Sustainable Science & Technology
Chr Lamnatou, D. Chemisana, C. Cristofari
Summary: This article provides a review of the application of smart grids and smart technologies in photovoltaic systems, storage, buildings, and the environment. It highlights the challenges posed by smart grids and smart systems, including residential microgeneration, user flexibility and active participation, promotion of renewable energy systems, and energy transition.
Article
Environmental Sciences
Chr Lamnatou, X. Ezcurra-Ciaurriz, D. Chemisana, L. M. Pla-Aragones
Summary: The study evaluates an extensive Iberian-pig system in Spain and finds that feed for the pigs is responsible for the major part of the environmental impacts, with maize and soya having the highest environmental impacts due to factors like transportation and use of fertilizers.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Energy & Fuels
Chr Lamnatou, D. Chemisana
Summary: Solar thermal systems play a crucial role in the building sector, and this article presents a multidimensional approach to study their development. By discussing energy policies and conducting Life Cycle Assessment, the environmental impacts of solar thermal systems in buildings were evaluated, with metallic components found to have the highest environmental impacts.
Article
Energy & Fuels
Florencia Lazzari, Gerard Mor, Jordi Cipriano, Eloi Gabaldon, Benedetto Grillone, Daniel Chemisana, Francesc Solsona
Summary: This paper presents a novel approach to forecast day-ahead electricity consumption for residential households, taking into account highly irregular human behavior. The methodology uses machine-learning techniques to handle missing data and outliers, and improves the forecasting of individual customer's electricity consumption by identifying and predicting user behavior.
Article
Energy & Fuels
A. Moreno, A. Riverola, D. Chemisana, R. Vaillon, A. Solans
Summary: Architectural glazing has advantages in aesthetics and user well-being, but can impact heating, cooling, and lighting. Ethylene tetrafluoroethylene (ETFE) cushion systems with organic photovoltaic (OPV) modules offer energy efficient glazing. This study provides a detailed analysis of an ETFE/OPV cushion, aiding in the design and understanding of performance.
Article
Energy & Fuels
Jesus M. Ceresuela, Daniel Chemisana, Nacho Lopez
Summary: A novel passive strategy is proposed to overcome the inconveniences of failure or underperformance of components in a household scale photovoltaic system. The strategy is based on network reliability and involves optimizing the array topology considering factors such as power production, power per panel ratio, and structure reliability. Different decision criteria are considered, and intuitive results are obtained.
Article
Energy & Fuels
Florencia Lazzari, Gerard Mor, Jordi Cipriano, Francesc Solsona, Daniel Chemisana, Daniela Guericke
Summary: Renewable Energy Communities (REC) have the potential to be a key driver in the energy transition by optimizing resource utilization. This study presents a tool that combines combinatorial optimization and multi-objective optimization to assist in the planning and operation of REC. Experimental results show that the developed tool achieves energy sharing with low solar energy excess, high self-consumption, and reduced CO2 emissions, ensuring low payback periods for all participants.
Article
Green & Sustainable Science & Technology
Chr. Lamnatou, D. Chemisana
Summary: In response to the growing environmental awareness, this study focuses on the life-cycle assessment of the Balance of System (BOS) for Photovoltaics (PVs), with an emphasis on the advantages of Organic Photovoltaics (OPVs). Existing research on PV systems lacks a sufficient emphasis on lightweight BOS systems, thereby highlighting the significance of flexible/lightweight PV modules for buildings and greenhouses. To address this research gap, this article aims to: i) provide an overview of BOS, ii) analyze the environmental impact of BOS in a grid-connected PV rooftop system, iii) estimate the potential reduction in environmental impact through PV systems requiring minimal BOS materials, and iv) present critical factors for OPV greenhouses and challenges in PV implementation. The results from this study, along with findings from previous research, indicate that BOS impacts range from: i) 6 to 181 kg CO2.eq/m2 of PV module, and ii) 55 to 1900 MJprim/m2 of PV module. Furthermore, considering the interdependence between the avoided impacts of a PV system and the electricity mix of a specific country, a case study based on different electricity mixes (OPV system: Spain; Italy; Portugal) is presented.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Green & Sustainable Science & Technology
Alex Moreno, Daniel Chemisana, Chrysovalantou Lamnatou, Santiago Maestro
Summary: The present article proposes a model to evaluate semitransparent photovoltaic rooftop greenhouses based on organic photovoltaics and ethylene-tetrafluoroethylene. The evaluation is conducted for five different configurations and two cities. The findings show that increasing the photovoltaic-covering surface reduces the overall energy demand of the greenhouse but also decreases the illumination for the crops. Evaluating the thermal behavior, the installation of the rooftop greenhouse reduces air-conditioning demand for both cities, with minimal effects on the adjacent floor in Paris and significant reductions in Barcelona.
Article
Chemistry, Physical
Daniel Chemisana, Oriol Teixido, Rodolphe Vaillon
Summary: A new class of thermophotovoltaic cells can convert thermal radiation power from high temperature sources into electrical power. By controlling the current density and utilizing a silicon vertical multijunction cell at high voltage, the resistive losses are reduced. With photonic engineering, higher efficiency can be achieved under high temperature conditions.
ACS ENERGY LETTERS
(2023)
Article
Energy & Fuels
Siddharth Sradhasagar, Omkar Subhasish Khuntia, Srikanta Biswal, Sougat Purohit, Amritendu Roy
Summary: In this study, machine learning models were developed to predict the bandgap and its character of double perovskite materials, with LGBMRegressor and XGBClassifier models identified as the best predictors. These models were further employed to predict the bandgap of novel bismuth-based transition metal oxide double perovskites, showing high accuracy, especially in the range of 1.2-1.8 eV.
Article
Energy & Fuels
Wei Shuai, Haoran Xu, Baoyang Luo, Yihui Huang, Dong Chen, Peiwang Zhu, Gang Xiao
Summary: In this study, a hybrid model based on numerical simulation and deep learning is proposed for the optimization and operation of solar receivers. By applying the model to different application scenarios and considering multiple performance objectives, small errors are achieved and optimal structure parameters and heliostat scales are identified. This approach is not only applicable to gas turbines but also heating systems.
Article
Energy & Fuels
Mubashar Ali, Zunaira Bibi, M. W. Younis, Muhammad Mubashir, Muqaddas Iqbal, Muhammad Usman Ali, Muhammad Asif Iqbal
Summary: This study investigates the structural, mechanical, and optoelectronic properties of the BaCuF3 fluoroperovskite using the first-principles modelling approach. The stability and characteristics of different cubic structures of BaCuF3 are evaluated, and the alpha-BaCuF3 and beta-BaCuF3 compounds are found to be mechanically stable with favorable optical properties for solar cells and high-frequency UV applications.
Article
Energy & Fuels
Dong Le Khac, Shahariar Chowdhury, Asmaa Soheil Najm, Montri Luengchavanon, Araa mebdir Holi, Mohammad Shah Jamal, Chin Hua Chia, Kuaanan Techato, Vidhya Selvanathan
Summary: A novel recycling system is proposed in this study to decompose and reclaim the constituent materials of organic-inorganic perovskite solar cells (PSCs). By utilizing a one-step solution process extraction approach, the chemical composition of each layer is successfully preserved, enabling their potential reuse. The proposed recycling technique helps mitigate pollution risks, minimize waste generation, and reduce recycling costs.
Article
Energy & Fuels
Peijie Lin, Feng Guo, Xiaoyang Lu, Qianying Zheng, Shuying Cheng, Yaohai Lin, Zhicong Chen, Lijun Wu, Zhuang Qian
Summary: This paper proposes an open-set fault diagnosis model for PV arrays based on 1D VoVNet-SVDD. The model accurately diagnoses various types of faults and is capable of identifying unknown fault types.
