Application of PVT Coupled Solar Heat Pump System in the Renovation of Existing Campus Buildings

Bing Liu, Linqing Yang, Tiangang Lv, Li Zhu, Mingda Ji () and Weihang Hu
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Bing Liu: Three Gorges Electric Energy Co., Ltd., Wuhan 430010, China
Linqing Yang: Three Gorges Electric Energy Co., Ltd., Wuhan 430010, China
Tiangang Lv: Three Gorges Electric Energy Co., Ltd., Wuhan 430010, China
Li Zhu: National Industry-Education Platform of Energy Storage, Tianjin University, Tianjin 300072, China
Mingda Ji: National Industry-Education Platform of Energy Storage, Tianjin University, Tianjin 300072, China
Weihang Hu: Tianjin International Engineering Institute, Tianjin University, Tianjin 300072, China

Energies, 2024, vol. 17, issue 19, 1-20

Abstract: A photovoltaic thermal panel (PV/T) is an integrated module that harnesses both photovoltaic and solar thermal technologies to convert solar energy into electricity and heat, thereby enhancing overall energy efficiency. This paper aims to explore the suitability of PV/T solar heat pump systems across various climate zones and assess their potential for widespread application. By analyzing the operating principles of an indirect expansion PV/T solar heat pump system in conjunction with the climate characteristics of different regions, MATLAB R2019b/Simulink software was employed to evaluate the photoelectric performance of PV and PV/T systems in representative cities across five distinct climate zones in China during typical winter days. Key metrics, such as power generation, hot water storage tank temperature, indoor temperature, and system COP, were chosen to assess the heating performance of the PV/T solar heat pump system. The findings indicate that the winter ambient temperature significantly affects the photoelectric efficiency of both the PV and PV/T systems. While higher latitudes with lower ambient temperatures yield greater photoelectric efficiency, the southern regions exhibit higher power generation during winter. The winter heating effectiveness of the PV/T solar heat pump system is mainly influenced by indoor and water tank temperatures, with Harbin’s system performing the poorest and failing to meet heating demands, whereas Nanjing’s system shows the best results.

Keywords: PV; PV/T; heat pumps; photoelectric efficiency; thermal performance evaluation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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