This paper uses TRNSYS software to establish a simulation model of a photovoltaic/thermal combined dual-source heat pump(PV/T-DSHP)system.A nearly zero energy residential building in the hot summer and cold winter zone is selected as the research object,and the operating characteristics and energy consumption of the PV/T-DSHP system under COPs switching mode during the heating season are simulated.The results show that the average photoelectric efficiency is 15.08％,and the average photothermal efficiency is 33.05％.The average COP of the heat pump unit is 4.55 in the water-source heat pump operating mode,and 3.19 in the air-source heat pump operating mode during the heating season.The average COPs of the PV/T-DSHP system is 2.98.The system self-satisfaction rate during the heating season is 61％.
关键词
光伏光热/双源热泵/水源热泵/空气源热泵/运行模式/近零能耗建筑/性能系数(COP)
Key words
photovoltaic/thermal/dual-source heat pump/water-source heat pump/air-source heat pump/operating mode/nearly zero energy building/coefficient of performance(COP)
维普
万方数据