Performance Analysis of Solar-Heat Pump Heating System for Mining Building

Taking the mining area buildings in Yulin area as the main research object, the annual heat load of the building is calculated. The maximum heat load is 1890 kW, and the domestic heat load is 126 kW. Aiming at the heat load demand, the simulation models of solar series water source heat pump (SA-WSHP) and solar parallel air source heat pump (SA-ASHP) system are established by TRNSYS software, and their performance is compared and analyzed. The feasibility of solar collector plate, water source heat pump, air source heat pump, water tank and other components is verified by experiments, and the water supply and return temperature, heating performance, heat supply and power consumption of the two systems are compared. The results show that the supply and return water temperature and COP of the solar series water source heat pump system are relatively stable, and the energy consumption is reduced by 48.7%. The heating of Yulin mining area shows that the solar energy series water source heat pump system is more efficient and energy saving.