Experimental evaluation of factors affecting performance of concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM)
The photovoltaic/thermal (PV/T) system is a promising option for countering energy shortages. To improve the performance of PV/T systems, compound parabolic concentrators (CPCs) and phase-change materials (PCMs) were jointly applied to construct a concentrating photovoltaic/thermal system integrated...
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KeAi Communications Co., Ltd.
2024-03-01
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| Series: | Energy Storage and Saving |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772683523000304 |
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| author | Zhaoyang Luan Lanlan Zhang Xiangfei Kong Han Li Man Fan |
| author_facet | Zhaoyang Luan Lanlan Zhang Xiangfei Kong Han Li Man Fan |
| author_sort | Zhaoyang Luan |
| collection | DOAJ |
| description | The photovoltaic/thermal (PV/T) system is a promising option for countering energy shortages. To improve the performance of PV/T systems, compound parabolic concentrators (CPCs) and phase-change materials (PCMs) were jointly applied to construct a concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM). An open-air environment is used to analyze the effects of different parameters and the intermittent operation strategy on the system performance. The results indicate that the short-circuit current and open-circuit voltage are positively correlated with the solar irradiance, but the open-circuit voltage is negatively correlated with the temperature of the PV modules. When the solar irradiance is 500 W⋅m−2 and the temperature of the PV modules is 27.5 ºC, the short-circuit current and open-circuit voltage are 1.0 A and 44.5 V, respectively. Higher solar irradiance results in higher thermal power, whereas the thermal efficiency is under lower solar irradiance (136.2–167.1 W⋅m−2 is twice under higher solar irradiance (272.3–455.7 W⋅m−2). In addition, a higher mass flow rate corresponds to a better cooling effect and greater pump energy consumption. When the mass flow rate increases from 0.01 to 0.02 kg⋅s–1, the temperature difference between the inlet and outlet decreases by 1.8 ºC, and the primary energy-saving efficiency decreases by 0.53%. The intermittent operation of a water pump can reduce the energy consumption of the system, and the combination of liquid cooling with PCMs provides better thermal regulation and energy-saving effects under various conditions. |
| first_indexed | 2024-03-08T15:31:52Z |
| format | Article |
| id | doaj.art-af6fab8073e8490a98f6c7bcafdbef4e |
| institution | Directory Open Access Journal |
| issn | 2772-6835 |
| language | English |
| last_indexed | 2024-03-08T15:31:52Z |
| publishDate | 2024-03-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Energy Storage and Saving |
| spelling | doaj.art-af6fab8073e8490a98f6c7bcafdbef4e2024-01-10T04:39:34ZengKeAi Communications Co., Ltd.Energy Storage and Saving2772-68352024-03-01313041Experimental evaluation of factors affecting performance of concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM)Zhaoyang Luan0Lanlan Zhang1Xiangfei Kong2Han Li3Man Fan4School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, ChinaSchool of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China; School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, ChinaSchool of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, ChinaSchool of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, ChinaSchool of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China; Corresponding author.The photovoltaic/thermal (PV/T) system is a promising option for countering energy shortages. To improve the performance of PV/T systems, compound parabolic concentrators (CPCs) and phase-change materials (PCMs) were jointly applied to construct a concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM). An open-air environment is used to analyze the effects of different parameters and the intermittent operation strategy on the system performance. The results indicate that the short-circuit current and open-circuit voltage are positively correlated with the solar irradiance, but the open-circuit voltage is negatively correlated with the temperature of the PV modules. When the solar irradiance is 500 W⋅m−2 and the temperature of the PV modules is 27.5 ºC, the short-circuit current and open-circuit voltage are 1.0 A and 44.5 V, respectively. Higher solar irradiance results in higher thermal power, whereas the thermal efficiency is under lower solar irradiance (136.2–167.1 W⋅m−2 is twice under higher solar irradiance (272.3–455.7 W⋅m−2). In addition, a higher mass flow rate corresponds to a better cooling effect and greater pump energy consumption. When the mass flow rate increases from 0.01 to 0.02 kg⋅s–1, the temperature difference between the inlet and outlet decreases by 1.8 ºC, and the primary energy-saving efficiency decreases by 0.53%. The intermittent operation of a water pump can reduce the energy consumption of the system, and the combination of liquid cooling with PCMs provides better thermal regulation and energy-saving effects under various conditions.http://www.sciencedirect.com/science/article/pii/S2772683523000304Compound parabolic concentratorFactor analysisOpen-air experimentPhase-change materialsPhotovoltaic/thermal system |
| spellingShingle | Zhaoyang Luan Lanlan Zhang Xiangfei Kong Han Li Man Fan Experimental evaluation of factors affecting performance of concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM) Energy Storage and Saving Compound parabolic concentrator Factor analysis Open-air experiment Phase-change materials Photovoltaic/thermal system |
| title | Experimental evaluation of factors affecting performance of concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM) |
| title_full | Experimental evaluation of factors affecting performance of concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM) |
| title_fullStr | Experimental evaluation of factors affecting performance of concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM) |
| title_full_unstemmed | Experimental evaluation of factors affecting performance of concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM) |
| title_short | Experimental evaluation of factors affecting performance of concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM) |
| title_sort | experimental evaluation of factors affecting performance of concentrating photovoltaic thermal system integrated with phase change materials pv t cpcm |
| topic | Compound parabolic concentrator Factor analysis Open-air experiment Phase-change materials Photovoltaic/thermal system |
| url | http://www.sciencedirect.com/science/article/pii/S2772683523000304 |
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