Operation Evaluation of Multi-Source Coupling Heating System Based on TRNSYS

In order to alleviate the heating energy consumption in hot summer and cold winter areas is generally high, a variety of complementary and coupled clean energy heating will become the main form of energy supply. Taking a building in a certain area of Baotou City as the heating research object, TRNSYS software was used to establish the system operation model. Through the analysis of the heating condition of the solar collector in parallel with the auxiliary heating unit, the annual average energy efficiency ratio (COP) of the ground source heat pump and water tank combined heating is increased by 21.2% and the energy consumption is increased by 21.2% compared with that of the whole tank heating mode. A decrease of 3.23%. And in the analysis of environmental benefits, the results show that the ground source heat pump - water tank heating is better than the whole water tank heating mode.