Energy and exergy analysis of solar photovoltaic photothermal-heat pump systems

In view of whether the solar photovoltaic photothermal-heat pump system has energy saving advantages, this paper uses TRNSYS software to establish a simulation model of the solar photovoltaic photothermal-heat pump system, and verifies it with the measured data. The annual operation comparisons with a single photovoltaic power generation system and a single air-source heat pump system are carried out, and the energy analysis and exergy analysis are carried out. The results show that the annual average electrical efficiency, annual total power generation, COP of heat pump units, energy consumption and exergy loss of the solar photovoltaic photothermal-heat pump system are better than those of a single photovoltaic power generation system combined with a single air-source heat pump system.