Review
Green & Sustainable Science & Technology
Y. Chaibi, T. El Rha, R. Sim, I. Guedea, S. Cardamas Luaces, O. Charro Gajate, T. Kousksou, Y. Zeraouli
Summary: This paper reviews various investigations conducted in recent years on photovoltaic-thermal technology, including theoretical studies, experimental works, and mathematical optimization studies aimed at improving the efficiency of this technology in terms of electrical and thermal power. Possible applications and future development of these technologies are also discussed.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Energy & Fuels
Qiliang Wang, Yao Yao, Zhicheng Shen, Hongxing Yang
Summary: A novel parabolic trough collector-photovoltaic (PTC-PV) system is proposed to enhance the thermal performance and solar utilization efficiency. Mathematical models are established and experiments are conducted to validate the superior performance of the hybrid PTC-PV system.
Article
Green & Sustainable Science & Technology
Mohammed G. Ajel, Engin Gedik, Hasanain Abdul A. Wahhab, Basam A. Shallal
Summary: Photovoltaic panels convert solar energy into electricity by using semiconductor materials and absorbing heat from solar radiation, but the efficiency of electricity generation is affected by the panel's temperature. Thus, cooling photovoltaic panels has become a focus of research, with cost reduction and energy consumption being important considerations. This study used two models of open-flow flat collectors to analyze the performance of PV panels and improve the cooling process. The results showed that the collector design had an impact on the PV/T system performance and panel temperature, with an increase in panel performance observed with both models.
Article
Multidisciplinary Sciences
Z. Khalili, M. Sheikholeslami, Ladan Momayez
Summary: In this study, a combination of thermoelectric generator (TEG) layer with conventional layers of photovoltaic-thermal (PVT) modules is used to utilize waste heat and improve efficiency. A cooling duct is installed at the bottom of the PVT-TEG unit to reduce the cell temperature. The type of fluid and structure of the duct affect the system performance. Hybrid nanofluid and three different duct configurations are implemented, and simulations show that the elliptic structure performs the best with a 6.29% enhancement in overall performance.
SCIENTIFIC REPORTS
(2023)
Review
Green & Sustainable Science & Technology
Farzad Hossain, Md Rezwanul Karim, Arafat A. Bhuiyan
Summary: The continuous increase in global energy consumption, combined with the harmful effects of fossil fuels on the atmosphere, has made the extraction of renewable energy and its conversion into electricity crucial. A hybrid photovoltaic-thermal collector offers an innovative alternative for harnessing renewable energy. The utilization of nanofluids has been found to significantly enhance the performance of hybrid PV/T solar collectors, improving overall efficiency, thermal and electrical efficiency, heat transfer characteristics, and exergy.
Article
Thermodynamics
Ehsan F. Abbas, Tahseen A. Tahseen, N. A. Madlol, Hulya S. Sulaiman, Hussein A. Z. Al-bonsrulah, Vijayanandh Raja, Mohammed Al-Bahrani
Summary: The photovoltaic/thermal (PV/T) hybrid system combines a PV panel with a thermal collector to generate both electricity and heat energy. Adding phase-change materials can enhance the efficiency of the system. The study found that adding a paraffin wax thermal storage unit to the PV/T hybrid system increased its efficiency by approximately 1.4 times compared to a system without a thermal storage unit.
INTERNATIONAL JOURNAL OF LOW-CARBON TECHNOLOGIES
(2022)
Article
Thermodynamics
Mohamed Ghazy, E. M. M. Ibrahim, A. S. A. Mohamed, Ahmed A. Askalany
Summary: This study proposes a new application for cooling photovoltaic cells using an adsorption desalination/cooling system (ADS), which improves the efficiency of the photovoltaic cells and the performance of the desalination system.
Article
Thermodynamics
Gongxing Yan, Xia Zhou, Azher M. Abed, Theyab R. Alsenani, Samia Elattar, Fan Peng, Mostafa A. H. Abdelmohimen
Summary: Parabolic trough collector (PTC) generates thermal energy by concentrating solar radiation, but integration with Photovoltaic (PV) modules significantly enhances its overall output. This research optimizes the operating parameters of the PTC/PV system and investigates the effect of rotating the receiver tube and installing metal foam on system efficiency. The optimized PTC/PV system achieves a maximum overall performance of 71.1%, but rotating the receiver tube increases the overall efficiency to 82.5% at the cost of reduced PV cell efficiency. Installing metal foam boosts electrical and overall efficiency by approximately 2% and 13.9% respectively, but slightly decreases thermal efficiency by 0.5%.
APPLIED THERMAL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Gan Huang, Kai Wang, Sara Riera Curt, Benjamin Franchetti, Ioannis Pesmazoglou, Christos N. Markides
Summary: A new type of PV-thermal collector has been developed, which can achieve high energy conversion efficiency and improve the electrical and thermal performance of the module through optimized optical filters. By adjusting the wavelength of the optical filter, the proportion of high-temperature heat and electricity can be flexibly controlled.
Article
Thermodynamics
Saeed Rubaiee, Syed Mohd Yahya, M. A. Fazal, Mohd Danish
Summary: This study investigates the thermal, optical, and suspension stability of graphene oxide nanofluid and its application in photovoltaic thermal systems. The results show that GO/EG:W nanofluid has higher thermal conductivity and stability compared to other nanofluids, making it more effective in enhancing the performance of photovoltaic thermal systems.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Energy & Fuels
Hussein M. Taqi Al-Najjar, Jasim M. Mahdi
Summary: The study has developed an accurate and fast mathematical model for PV/PCM systems, which has been validated through CFD and experimental verification. The proposed model is effective in conducting comprehensive investigations of PV/PCM performance characteristics, parametric analyses, and design.
Article
Thermodynamics
Hussein A. Kazem, Miqdam T. Chaichan, Ali H. A. Al-Waeli, K. Sopian
Summary: This paper presents the evaluation and comparison of a newly designed PV/T hybrid collector with conventional PV systems, showing that the hybrid system outperforms others in terms of electrical and thermal performance.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2021)
Article
Construction & Building Technology
Abdelkabir Zaite, Naoual Belouaggadia, Cherifa Abid, Mohammed Ezzine
Summary: A night radiative cooling technology is proposed in this study to passively solve the thermal problem caused by solar radiation absorbed by photovoltaic thermal systems but not transformed into electricity. By cooling the system water at night and using it for cooling the photovoltaic cells the next day, the proposed method reduces the daily temperature of the cells and improves their monthly gain of electrical energy compared to conventional methods.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Thermodynamics
Shiqian Dong, He Long, Jingxuan Guan, Lina Jiang, Chaoqun Zhuang, Yafeng Gao, Yanqiang Di
Summary: This research proposes a novel PV/T system and evaluates its effectiveness and stability through parameter discussions and performance analysis. The results show that the system can significantly reduce cell temperature, improve electrical output and thermal efficiency. Furthermore, using a variable water flow rate strategy can further enhance energy collection and reduce pump energy consumption.
Article
Environmental Sciences
Shweta Singh, Rakesh Kumar Singh, Anil Kumar, Virendra Kumar, Gopal Nath Tiwari
Summary: Domestic RO systems are commonly used for water purification in households. This study explores the use of RO reject and MgO/water-based nano-fluid to enhance the performance of a photovoltaic/thermal (PV/T) system. The results show that the PV/T system's performance is improved with increased flow rate and optimal concentration of nanoparticles. The findings provide valuable insights for the practical implementation of MgO/water-based nano-fluids in PV/T systems.
Article
Thermodynamics
Moustafa Al-Damook, Zain Alabdeen Hussein Obaid, Mansour Al Qubeissi, Darron Dixon-Hardy, Joshua Cottom, Peter J. Heggs
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2019)
Article
Thermodynamics
Moustafa Al-Damook, Zinedine Khatir, Mansour Al Qubeissi, Darron Dixon-Hardy, Peter J. Heggs
Summary: This paper presents a three-step strategy for the development of an energy efficient hybrid photovoltaic/thermal air system, achieving improved thermal and electric efficiencies through a multi-objective design optimization process.
APPLIED THERMAL ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
Moustafa Al-Damook, Asim Mumtaz, Darron Dixon-Hardy, Peter J. Heggs, Kaleid Waleed Abid, Mansour Al Qubeissi
Summary: This study evaluates the performance of a photovoltaic module under extreme climate conditions, with a focus on a case study in Iraq. A CFD model is developed and validated using analytical solutions and measured data. The results highlight the importance of module position, length, and inclination on heat transfer performance.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Mansour Al Qubeissi, Ayob Mahmoud, Moustafa Al-Damook, Ali Almshahy, Zinedine Khatir, Hakan Serhad Soyhan, Raja Mazuir Raja Ahsan Shah
Summary: Liquid fuel has traditionally been the primary energy source for internal combustion engines (ICE), but lithium-ion batteries (LIB) have replaced ICE for eco-friendly vehicles and reduced reliance on fossil fuels. This study compares different battery thermal management systems (BTMS) to maintain a temperature range of 15-35 degrees Celsius, prevent thermal runaway and temperature gradients, and improve LIB lifespan and performance. The proposed approach uses biodiesel as both the engine feed and coolant. Simulation results show that biodiesel fuels, such as palm, karanja, jatropha, and mahua oils, can effectively maintain LIB temperature within the optimum working range and outperform conventional coolants like air and 3M Novec.
Article
Green & Sustainable Science & Technology
Mustafa Alaskari, Arwa M. Kadhim, Ammar A. Farhan, Moustafa Al-Damook, Mansour Al Qubeissi
Summary: This paper investigates the impact of artificial roughness applied to a Solar Air Heater (SAH) absorber plate on its total thermal efficiency. The study examines the influence of geometrical parameters of V-down ribs attached below the corrugated absorbing plate of a SAH on the efficiency under real weather conditions. The results show that the roughened SAH with V-down ribs can achieve a maximum efficiency of 78.8%, which is 15.7% higher than the default smooth surface. Furthermore, the roughened SAH outperforms the smooth SAH under real weather conditions, with higher efficiencies of 17.7% and 20.1% for single- and double-glass covers, respectively.
CLEAN TECHNOLOGIES
(2022)
Article
Green & Sustainable Science & Technology
Cameron Bracken, Nathalie Voisin, Casey D. Burleyson, Allison M. Campbell, Z. Jason Hou, Daniel Broman
Summary: This study presents a methodology and dataset for examining compound wind and solar energy droughts, as well as the first standardized benchmark of energy droughts across the Continental United States (CONUS) for a 2020 infrastructure. The results show that compound wind and solar droughts have distinct spatial and temporal patterns across the CONUS, and the characteristics of energy droughts are regional. The study also finds that compound high load events occur more often during compound wind and solar droughts than expected.
Article
Green & Sustainable Science & Technology
Ning Zhang, Yanghao Yu, Jiawei Wu, Ershun Du, Shuming Zhang, Jinyu Xiao
Summary: This paper provides insights into the optimal configuration of CSP plants with different penetrations of wind power by proposing an unconstrained optimization model. The results suggest that large solar multiples and TES are preferred in order to maximize profit, especially when combined with high penetrations of wind and photovoltaic plants. Additionally, the study demonstrates the economy and feasibility of installing electric heaters (EH) in CSP plants, which show a linear correlation with the penetration of variable energy resources.
Article
Green & Sustainable Science & Technology
M. Szubel, K. Papis-Fraczek, S. Podlasek
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Green & Sustainable Science & Technology
Yang Liu, Yonglan Xi, Xiaomei Ye, Yingpeng Zhang, Chengcheng Wang, Zhaoyan Jia, Chunhui Cao, Ting Han, Jing Du, Xiangping Kong, Zhongbing Chen
Summary: This study investigated the effect of using nanofiber membrane composites containing Prussian blue-like compound nanoparticles (PNPs) to relieve ammonia nitrogen inhibition of rural organic household waste during high-solid anaerobic digestion and increase methane production. The results showed that adding NMCs with 15% PNPs can lower the concentrations of volatile fatty acids and ammonia nitrogen, and increase methane yield.
Article
Green & Sustainable Science & Technology
Zhong Ge, Xiaodong Wang, Jian Li, Jian Xu, Jianbin Xie, Zhiyong Xie, Ruiqu Ma
Summary: This study evaluates the thermodynamic, exergy, and economic performance of a double-stage organic flash cycle (DOFC) using ten eco-friendly hydrofluoroolefins. The influences of key parameters on performance are analyzed, and the advantages of DOFC over single-stage type are quantified.
Article
Green & Sustainable Science & Technology
Nicolas Kirchner-Bossi, Fernando Porte-Agel
Summary: This study investigates the optimization of power density in wind farms and its sensitivity to the available area size. A novel genetic algorithm (PDGA) is introduced to optimize power density and turbine layout. The results show that the PDGA-driven solutions significantly reduce the levelized cost of energy (LCOE) compared to the default layout, and exhibit a convex relationship between area and LCOE or power density.
Article
Green & Sustainable Science & Technology
Chunxiao Zhang, Dongdong Li, Lin Wang, Qingpo Yang, Yutao Guo, Wei Zhang, Chao Shen, Jihong Pu
Summary: In this study, a novel reversible liquid-filled energy-saving window that effectively regulates indoor solar radiation heat gain is proposed. Experimental results show that this window can effectively reduce indoor temperature during both summer and winter seasons, while having minimal impact on indoor illuminance.
Article
Green & Sustainable Science & Technology
Alessandro L. Aguiar, Martinho Marta-Almeida, Mauro Cirano, Janini Pereira, Leticia Cotrim da Cunha
Summary: This study analyzed the Brazilian Equatorial Shelf using a high-resolution ocean model and found significant tidal variations in the area. Several hypothetical barrages were proposed with higher annual power generation than existing barrages. The study also evaluated the installation effort of these barrages.
Article
Green & Sustainable Science & Technology
Francesco Superchi, Nathan Giovannini, Antonis Moustakis, George Pechlivanoglou, Alessandro Bianchini
Summary: This study focuses on the optimization of a hybrid power station on the Tilos island in Greece, aiming to increase energy export and revenue by optimizing energy fluxes. Different scenarios are proposed to examine the impact of different agreements with the grid operator on the optimal solution.
Article
Green & Sustainable Science & Technology
Peimaneh Shirazi, Amirmohammad Behzadi, Pouria Ahmadi, Sasan Sadrizadeh
Summary: This research presents two novel energy production/storage/usage systems to reduce energy consumption and environmental effects in buildings. A biomass-fired model and a solar-driven system integrated with photovoltaic thermal (PVT) panels and a heat pump were designed and assessed. The results indicate that the solar-based system has an acceptable energy cost and the PVT-based system with a heat pump is environmentally superior. The biomass-fired system shows excellent efficiency.
Article
Green & Sustainable Science & Technology
Zihao Qi, Yingling Cai, Yunxiang Cui
Summary: This study aims to investigate the operational characteristics of the solar-ground source heat pump system (SGSHPS) in Shanghai under different operation modes. It concludes that tandem operation mode 1 is the optimal mode for winter operation in terms of energy efficiency.
Article
Green & Sustainable Science & Technology
L. Bartolucci, S. Cordiner, A. Di Carlo, A. Gallifuoco, P. Mele, V. Mulone
Summary: Spent coffee grounds are a valuable biogenic waste that can be used as a source of biofuels and valuable chemicals through pyrolysis and solvent extraction processes. The study found that heavy organic bio-oil derived from coffee grounds can be used as a carbon-rich biofuel, while solvent extraction can extract xantines and p-benzoquinone, which are important chemicals for various industries. The results highlight the promising potential of solvent extraction in improving the economic viability of coffee grounds pyrolysis-based biorefineries.
Article
Green & Sustainable Science & Technology
Luiza de Queiroz Correa, Diego Bagnis, Pedro Rabelo Melo Franco, Esly Ferreira da Costa Junior, Andrea Oliveira Souza da Costa
Summary: Building-integrated photovoltaics, especially organic solar technology, are important for reducing greenhouse gas emissions in the building sector. This study analyzed the performance of organic panels laminated in glass in a vertical installation in Latin America. Results showed that glass lamination and vertical orientation preserved the panels' performance and led to higher energy generation in winter.
Article
Green & Sustainable Science & Technology
Zhipei Hu, Shuo Jiang, Zhigao Sun, Jun Li
Summary: This study proposes innovative fin arrangements to enhance the thermal performance of latent heat storage units. Through optimization of fin distribution and prediction of transient melting behaviors, it is found that fin structures significantly influence heat transfer characteristics and melting behaviors.
