EXPERIMENTAL STUDY ON APPLICATION OF SOLAR PHOTOVOLTAIC THERMAL SYSTEM IN CHONGQING AREA

Pang Yantao; Zhang Zhengfei; Xiao Yimin; Li Zhengbin; Wang Li

doi:10.19912/j.0254-0096.tynxb.2024-1333

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (12) : 352-358. DOI: 10.19912/j.0254-0096.tynxb.2024-1333

EXPERIMENTAL STUDY ON APPLICATION OF SOLAR PHOTOVOLTAIC THERMAL SYSTEM IN CHONGQING AREA

Pang Yantao¹, Zhang Zhengfei¹, Xiao Yimin^1,2, Li Zhengbin², Wang Li²

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Abstract

In order to explore the performance of solar photovoltaic thermal （PV/T） system in the area of relatively poor solar energy resources, we set up a PV/T system experimental platform in Changshou District of Chongqing and carried out the research. The experimental results indicate that： The PV/T system exhibits merit power generation performance in summer and winter, with daily average power generation efficiencies of 14.08% and 14.59%, respectively. The average daily thermal efficiency in summer can reach 35.47%, and the heat collected in a single day makes the water temperature in the 1 m³ tank rise by 22.0 ℃; The average daily thermal efficiency in winter is 12.41%. Use the sensitivity analysis method to compare the impact degree of solar irradiance, cooling water temperature and ambient temperature on the power generation performance of the system. The sensitivity coefficients of the three factors are 110.15, 20.09, and 5.60, respectively, and the system has the highest sensitivity to solar irradiance This study provides reference for the application of PV/T system in Chongqing and other areas with relatively poor solar energy resources.

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PV/T / electrical efficiency / thermal efficiency / sensitivity analysis

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Pang Yantao, Zhang Zhengfei, Xiao Yimin, Li Zhengbin, Wang Li. EXPERIMENTAL STUDY ON APPLICATION OF SOLAR PHOTOVOLTAIC THERMAL SYSTEM IN CHONGQING AREA[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 352-358 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1333

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