COMPREHENSIVE PERFORMANCE OF PV/T-GCHPS UNDER HEATING CONDITIONS

Wang Haitao; Zhang Ji; Hu Ning; Cheng Zude

doi:10.19912/j.0254-0096.tynxb.2022-0533

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (8) : 195-202. DOI: 10.19912/j.0254-0096.tynxb.2022-0533

COMPREHENSIVE PERFORMANCE OF PV/T-GCHPS UNDER HEATING CONDITIONS

Wang Haitao, Zhang Ji, Hu Ning, Cheng Zude

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Abstract

PV/T-GCHPs （photovoltaic/thermal - ground-coupled heat pump systems） is a system that realizes the complementary utilization of geothermal energy and solar energy. The experimental platform of the system was designed and built, and the effect of the temperature of the outlet water from the borehole on the power generation performance of the photovoltaic panel was analyzed through experiment and simulation under the heating conditions of the PV/T-GCHPs, and the heating performance coefficients of PV/T-GCHPs and GCHPs were compared. The results show that when the heat pump load is 75%, the circulating water flow rate is 0.28 kg/s, the outlet temperature of the buried pipe is 8 ℃, the maximum power generation efficiency of photovoltaic panels is increased by 6.4%, and the average heating performance coefficient of PV/T-GCHPs is increased by 2.2% compared with GCHPs. The maximum heating performance coefficient is increased by 2.4%.

Key words

solar energy / geothermal energy / heat conduction / PV/T-GCHPs / photoelectric efficiency / heating performance coefficient

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Wang Haitao, Zhang Ji, Hu Ning, Cheng Zude. COMPREHENSIVE PERFORMANCE OF PV/T-GCHPS UNDER HEATING CONDITIONS[J]. Acta Energiae Solaris Sinica. 2023, 44(8): 195-202 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0533

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