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
Environmental Sciences
Pranav Mehta, Abd Elnaby Kabeel, Vivek Patel, Sumit Kumar
Summary: Solar distillation using free energy from the sun is a significant technique for obtaining freshwater from salty and seawater, particularly in remote areas. The study evaluated the performance of a conventional solar still with a flat plate collector, showing increased productivity when the collector was used.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Houssam Chouikhi, Baher M. A. Amer
Summary: This paper presents a solar dryer with an indirect-mode forced convection and a PV/T air collector. The PV/T air collector produces heated air and electrical energy to facilitate convection drying in the solar dryer. Experimental and numerical simulations were conducted to analyze the performance of the dryer. The experimental results were validated by the CFD modeling, showing good agreement. The daily average efficiencies of the collector, dryer, and PV panel were estimated to be 30.9%, 15.2%, and 8.7% respectively for the solar drying system.
Article
Green & Sustainable Science & Technology
Omayma M. Abdulmajeed, Abdullateef A. Jadallah, Ghassan A. Bilal, Muslum Arici
Summary: This study investigates the effect of various mass flow rates on the performance of bi-fluid photovoltaic thermal systems. The results show that optimum mass flow rates can improve the performance of both systems.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
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.
Review
Thermodynamics
Qianrong Wang, Liu Yang, Ning Zhao, Guoying Xu, Jianzhong Song, Xing Jin, Xiaoke Li, Shenghui Liu
Summary: With the development of solar energy utilization and nanotechnology, nanofluid heat collection has attracted significant attention. This paper reviews the research progress of plasmonic nanofluids in solar collectors and PV/T systems and compares them with conventional nanofluids for the first time. The plasmonic nanofluids exhibit excellent light absorption capacity and controllable light intensity and resonance frequency.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
He Liu, You Tian, Jia'ao Liu, Dongwei Zhang, Xuehong Wu, Zengyao Li
Summary: A new solar drying system based on silica aerogels is proposed, which has high solar heat collection efficiency, high hot air outlet temperature, and high drying efficiency. Experimental results show that the optimum thickness of the silica aerogel insulation layer is 10 mm. The proposed system can meet the drying requirements of most agricultural products without an additional heat source and shorten the drying time by 58%.
Article
Thermodynamics
Dawit Gudeta Gunjo, Vinod Kumar Yadav, Devendra Kumar Sinha, Ibrahim E. Elseesy, Gulam Mohammed Sayeed Ahmed, Mostafa A. H. Abdelmohimen
Summary: A computational fluid dynamics model of a solar heater is developed in this study, and its numerical results are validated by experimental trials. The study finds that different water temperatures can be achieved by adjusting the operating parameters.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Telugu Venkatesh, S. Manikandan, C. Selvam, Sivasankaran Harish
Summary: By utilizing water-based graphene nanofluids, the energy efficiency of a hybrid PV/T system can be significantly improved while reducing the panel temperature. Increasing graphene concentration in water enhances thermal conductivity, leading to improved energy efficiency of the system.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
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)
Review
Engineering, Chemical
Lei Sun, Liu Yang, Ning Zhao, Jianzhong Song, Xiaoke Li, Xiaohu Wu
Summary: Nanofluids with excellent physical and spectral properties have the potential for multifunctional applications in solar energy systems. This paper reviews the research status of nanofluid-driven multifunctional systems, highlighting their selective absorption properties in different bands of the solar spectrum and superior performance compared to common fluids in hybrid systems. Further research is needed to optimize the systems and improve the long-term stability of nanofluids for greater impact in multifunctional applications.
Article
Green & Sustainable Science & Technology
M. Herrando, A. Coca-Ortegon, I. Guedea, N. Fueyo
Summary: This study aimed to validate a transient model of a solar hybrid pilot plant using PV-T collectors integrated with a rev-HP. The plant provides space heating, cooling, DHW and electricity to an industrial building in Zaragoza, Spain. The validation results showed good agreement between the transient model and experimental performance of the PV-T collectors, with slight deviations for thermal and electrical generation. The integration of the PV-T system with a high-performance rev-HP enables self-sufficiency in meeting the building energy demand.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Thermodynamics
A. E. Kabeel, Mohamed Abdelgaied, G. M. Mahmoud
Summary: The experimental study focused on increasing the distillate water productivity of solar stills by implementing continuous water desalination over 24 hours. A solar still was designed and operated in Egypt with the use of an electric water heater to heat the basin water during the night and early morning. Results showed a significant improvement in both distillate water productivity and overall efficiency when compared to solar stills without continuous desalination.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Green & Sustainable Science & Technology
Xiaokang Xia, Tao Gu, Miaomiao Fan, Haifei Chen, Bendong Yu
Summary: This study proposed a novel multifunctional system that combines photocatalytic purification technology with PV/T technology, and experimental results showed significant effects of TiO2 nanofluids concentration and depth on electrical performance and formaldehyde solubility. The study also investigated the photocatalytic process and energy analysis of the system in a typical day, revealing improvements in photocatalytic oxidation rate and additional sterilization time compared to conventional systems.
Article
Thermodynamics
Mohamed Lebbi, Khaled Touafek, Ahmed Benchatti, Lyes Boutina, Abdelkrim Khelifa, Mohamed Taher Baissi, Samir Hassani
Summary: The study aimed to address the issues of temperature rise and dust accumulation on solar panels in desert areas, by utilizing a new hybrid system PV/T Bi-fluid to achieve both cooling and self-cleaning simultaneously. Experimental results demonstrated the effectiveness of this system in improving electrical performance.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
Shahriyar Safat Dipta, Md Habibur Rahaman, Walia Binte Tarique, Ashraful Hossain Howlader, Ayush Pratik, John A. Stride, Ashraf Uddin
Summary: Implementing a double-sided passivation approach can enhance the performance of n-i-p structured PSCs and improve the stability and photovoltaic properties of the cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Daniel Ourinson, Andreas Brand, Andreas Lorenz, Marwan Dhamrin, Sebastian Tepner, Michael Linse, Nathalie Goettlicher, Kosuke Tsuji, Jonas D. Huyeng, Florian Clement
Summary: This work presents two approaches to reduce the amount of silver on the rear side of M2-sized industrial iTOPCon solar cells. The Cu-based approach shows promise with similar power conversion efficiency compared to the conventional approach, while the Al-based approach exhibits some limitations but demonstrates the potential of such type of contact for iTOPCon solar cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Abasifreke Ebong, Donald Intal, Sandra Huneycutt, Thad Druffel, Ruvini Dharmadasa, Kevin Elmer, Apolo Nambo
Summary: This study demonstrates the successful metallization of a PERC silicon solar cell using screen-printable copper (Cu) paste. The Cu paste contains antioxidant additives and diffusion inhibitors to prevent oxidation and diffusion of Cu. The Cu-printed cells achieved an efficiency of 19% and showed no Cu diffusion after characterization tests. The long-term stability and effectiveness of the Cu diffusion barrier were also confirmed.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Senami Zogbo, Wilfried Favre, Olivier Bonino, Marie-Estelle Gueunier-Farret
Summary: Measuring specific contact resistivity (pc) is crucial for interface engineering in high efficiency solar cells. The Transfer Length Method (TLM) is commonly used for evaluating layer sheet resistance (Rsheet) and pc, but it is not suitable for metal/Transparent Conductive Oxide (TCO) interface evaluation in silicon heterojunction (SHJ) cells. This study investigates the parameters that restrict current confinement within the TCO, including mid-gap trap density (Dit) at the a-Si:H/c-Si interface and the activation energy (Ea = Ec - EF) variation of a-Si:H contact layers.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Jean-Baptiste Charpentier, Philippe Voarino, Julien Gaume
Summary: The phenomenon of ribbon lengthening in PV modules exposed to thermal cycling is not well explained in the literature. In this study, a three layers model is proposed to explain this effect, and the predictions of the model are validated through finite element method simulations and experiments. The results show that the model predictions are consistent with the indirect measurements, but not with the direct measurements. Additionally, it is inferred that the encapsulant plays a role after the solder failure.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Jean-Baptiste Charpentier, Philippe Voarino, Julien Gaume
Summary: This study investigates the problematic ribbon lengthening observed in PV modules exposed to high amplitude thermal cycling. A simplified system model is proposed and accurate predictions are obtained using the Finite Element Method. The results show that the thickness of the encapsulant has a substantial impact on the lengthening of the ribbons.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
S. Catalan-Gomez, E. Martinez Castellano, M. Schwarz, M. Montes Bajo, L. Dorado Vargas, A. Gonzalo, A. Redondo-Cubero, A. Gallego Carro, A. Hierro, J. M. Ulloa
Summary: This study investigates the use of core-shell gallium nanoparticles as functional light scatterers on solar cells. By optimizing the nanoparticle size, the short-circuit current of the solar cells is significantly improved. The underlying physical mechanism is studied through optical measurements and simulations, and a method to reduce the plasmonic effect of the nanoparticles is demonstrated.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
M. Gamel, G. Lopez, A. M. Medrano, A. Jimenez, A. Datas, M. Garin, I. Martin
Summary: In this study, a highly reflective ohmic contact to p-type c-Ge material is demonstrated, which can improve the efficiency of thermophotovoltaic devices. The experimental results show that this contact can simultaneously meet the requirements of good back surface passivation, low electrical resistivity, and high reflectivity. Moreover, simulations suggest that implementing these back contacts has the potential to achieve conversion efficiencies comparable to high-efficiency c-Ge TPV cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Hongyang Wei, Qing Xu, Dongchu Chen, Min Chen, Menglei Chang, Xiufang Ye
Summary: This study prepared solar selective absorption films based on anodic aluminum oxide (AAO) photonic crystals using a unique electrodeposition method. The Co-Ag electrodeposited film exhibited superior solar selective absorption properties and thermal stability.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Ankit Kumar, Ankit Chauhan, Jordi Llobet, Helder Fonseca, Patricia C. Sousa, Carlos Calaza, Gil Shalev
Summary: This study found that decorating subwavelength arrays with SiO2 quasi-nanolenses (qNL arrays) can enhance the absorption of the solar spectrum. Optical absorption mechanisms in qNL arrays were investigated using near-field scanning optical microscopy (NSOM), revealing that the enhancement is a result of the combination of effective antireflection coating, increased optical interactions between adjacent dielectrics for elevated light trapping, and strong light concentration due to the presence of qNLs.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
S. Pingel, T. Wenzel, N. Goettlicher, M. Linse, L. Folcarelli, J. Schube, S. Hoffmann, S. Tepner, Y. C. Lau, J. Huyeng, A. Lorenz, F. Clement
Summary: This study demonstrates the potential to reduce silver consumption in highly efficient SHJ cells through fine-line screen printing using low temperature paste with various screens. The results show that using finer mesh allows for narrower grid fingers and lower resistance, leading to improved cell efficiency. Simulation results indicate that module wire configuration is crucial for reducing silver consumption.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Xibo He, Jun Qiu, Wei Wang, Yicheng Hou, Yong Shuai
Summary: This paper proposes a novel phase change material with high thermal conductivity and stability for fast photo-thermal conversion and storage. The experimental results demonstrate excellent durability and stability of the phase change material, with good performance in thermal conductivity and thermal storage efficiency.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Qingyuan Liu, Lin Wang, Zheng Liu, Guohua Liu
Summary: A new evaporating structure consisting of liquid marble with tunable nanowire array is proposed to enhance solar evaporation. The experiments show that the liquid marble with nanowire array exhibits outstanding evaporation performance, which has significant implications for seawater desalination or wastewater treatment.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Hao Liu, Qiming Liu, Jinpei Liu, Yonggang Zhao, Yingjie Yu, Yue An, Ganghui Wei, Yanzheng Li, Yujun Fu, Junshuai Li, Deyan He
Summary: Moisture in the air is identified as the main cause of performance degradation in organic-inorganic hybrid solar cells. Exposure to air leads to the growth of thin oxide layer on the interface and the formation of silver sulfide, increasing the series resistance and decreasing the fill factor, thus degrading the cell performance.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
E. Blanco, P. Martin, M. Dominguez, P. Fernandez-Palacios, I. Lombardero, C. Sanchez-Perez, I. Garcia, C. Algora, M. Gabas
Summary: This study addresses the lack of optical parameters for p-type Ge wafers by determining the complex refractive indices of commercial Ge wafers with varying doping levels. The obtained data successfully reproduces the critical points associated with interband transitions and absorption features below the bandgap. The refractive indices were validated through experimental measurements and solar cell simulations.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)