EXPERIMENTAL STUDY ON PERFORMANCE OF PHOTOVOLTAIC/PHOTOTHERMAL SYSTEMS BASED ON PHASE CHANGE MATERIALS

Sun Xiaoqin; Liao Baichen; Li Daifeng; Zhang Xiaofeng; Shi Er; Li Jie

doi:10.19912/j.0254-0096.tynxb.2023-1715

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (2) : 441-448. DOI: 10.19912/j.0254-0096.tynxb.2023-1715

EXPERIMENTAL STUDY ON PERFORMANCE OF PHOTOVOLTAIC/PHOTOTHERMAL SYSTEMS BASED ON PHASE CHANGE MATERIALS

Sun Xiaoqin, Liao Baichen, Li Daifeng, Zhang Xiaofeng, Shi Er, Li Jie

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Abstract

Phase change materials （PCM） with isothermal heat storage and release process are used as the medium to regulate the temperature change of solar cells during the solar photovoltaic conversion process. The energy conversion performance of the PV-PCM system and the PV/T-PCM system under different solar radiation conditions was compared experimentally. The results show that PCMs can effectively slow down the temperature rise of photovoltaic modules in the PV-PCM system, but the PV-PCM system is prone to overheating under long-term experimental conditions. The combined energy conversion efficiency and energy efficiency of the PV/T-PCM system in the experiments averaged 53.8% and 14.45%, the combined energy conversion efficiency and energy efficiency of the PV-PCM system averaged 20.96% and 11.7%, and the energy conversion efficiency of the PV alone system averaged 8.89%. The results show that the use of PV-PCM and PV/T-PCM systems can significantly improve the energy performance of photovoltaic modules.

Key words

solar energy / phase change materials / energy conversion efficiency / exergy / PV/T system

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Sun Xiaoqin, Liao Baichen, Li Daifeng, Zhang Xiaofeng, Shi Er, Li Jie. EXPERIMENTAL STUDY ON PERFORMANCE OF PHOTOVOLTAIC/PHOTOTHERMAL SYSTEMS BASED ON PHASE CHANGE MATERIALS[J]. Acta Energiae Solaris Sinica. 2025, 46(2): 441-448 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1715

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