COMPARATIVE STUDY ON ENERGY ECONOMY OF THREE SOLAR HEAT PUMP HEATING SYSTEMS DURING HEATING SEASON

Li Jinping; Zhou Jingqiu; Huang Juanjuan; Kang Jian; Vojislav Novakovic

doi:10.19912/j.0254-0096.tynxb.2025-0275

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (7) : 598-609. DOI: 10.19912/j.0254-0096.tynxb.2025-0275

COMPARATIVE STUDY ON ENERGY ECONOMY OF THREE SOLAR HEAT PUMP HEATING SYSTEMS DURING HEATING SEASON

Li Jinping^1~3, Zhou Jingqiu^1~3, Huang Juanjuan^1~3, Kang Jian^1~3, Vojislav Novakovic⁴

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Abstract

To investigate the impact of the differences in the coupling of heat pumps with different collectors in cold and arid regions on the operational performance of the system, evacuated tube collectors, large flat plate collectors, and PV/T collector and air source heat pumps were integrated for mathematical modeling and performance simulation, and their energy economy during the heating season was compared. The results show that the PV/T heat pump heating system has a better comprehensive effect, with an average solar fraction of 58.11% and an energy efficiency ratio of 4.85 during the heating season. Compared with evacuated tube collectors and large flat plate collectors, the solar fraction has increased by 22.4% and 46.7% respectively, and the energy efficiency ratio has increased by 31.4% and 60.6% respectively. And the PV/T heat pump heating system not only produces heat but also generates electricity, during the heating season, the system maintains an average daily power generation efficiency of 13.9%, with a return on investment period of only 5.5 years.

Key words

solar energy / air source heat pumps / photovoltaic/thermal / energy economics / comparative analysis

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Li Jinping, Zhou Jingqiu, Huang Juanjuan, Kang Jian, Vojislav Novakovic. COMPARATIVE STUDY ON ENERGY ECONOMY OF THREE SOLAR HEAT PUMP HEATING SYSTEMS DURING HEATING SEASON[J]. Acta Energiae Solaris Sinica. 2026, 47(7): 598-609 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0275

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