EXPERIMENTAL STUDY ON PERFORMANCE OF PHOTOVOLTAIC DIRECT-DIRVEN PV/T DUAL-SOURCE HEAT PUMP HOT WATER SYSTEM

Chu Leichi; Zhao Shanguo; Gao Yuanzhi; Liu Chang; Zhang Xiaosong

doi:10.19912/j.0254-0096.tynxb.2021-1606

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (5) : 188-194. DOI: 10.19912/j.0254-0096.tynxb.2021-1606

EXPERIMENTAL STUDY ON PERFORMANCE OF PHOTOVOLTAIC DIRECT-DIRVEN PV/T DUAL-SOURCE HEAT PUMP HOT WATER SYSTEM

Chu Leichi¹, Zhao Shanguo^2,3, Gao Yuanzhi¹, Liu Chang¹, Zhang Xiaosong¹

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Abstract

In order to solve the problems of poor thermal performance and large energy loss of traditional PV/T（photovoltaic-thermal） dual-source heat pump, a photovoltaic direct-driven PV/T dual-source heat pump hot water system （solar + air source） is proposed in this paper, and the experimental study of the system is carried out. The results show that under the outdoor experimental conditions of the average outdoor ambient temperature of 27.9 ℃ and the average solar radiation intensity of 691.1 W/m² in summer, the system runs for about 4 h, the 250 L of water at 26.5 ℃ is heated to the target temperature of 55 ℃, and the average COP of the heat pump is 8.83. During the experiment, the average temperature of the PV/T module is 9.8 ℃ lower than that of the pure photovoltaic module under the same operating conditions, and the optoelectronic performance is relatively improved by 17.53%.

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solar heat pump / PV/T / cogeneration / DC drive system

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Chu Leichi, Zhao Shanguo, Gao Yuanzhi, Liu Chang, Zhang Xiaosong. EXPERIMENTAL STUDY ON PERFORMANCE OF PHOTOVOLTAIC DIRECT-DIRVEN PV/T DUAL-SOURCE HEAT PUMP HOT WATER SYSTEM[J]. Acta Energiae Solaris Sinica. 2023, 44(5): 188-194 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1606

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