Simulation Study and Comparative Analysis of Composite Energy System Based on TRNSYS

Abstract Taking a two-story building in Shenyang as an example, this paper uses DeST-C and TRNSYS software to simulate the heat pump system and the solar coupled heat pump system. It is modeled by DeST-C software.And the results show that the construction area of 288㎡and the annual cumulative heat load of 14906KW•h, the annual cumulative cooling load of 8103.49 KW•h. The COP value of the solar coupled heat pump system is 11.62%, which is higher than that of the simple heat pump system, and the energy saving effect is remarkable. Through the PVT collector system and vacuum tube solar collectors coupled the heat pump found that, these two solar-related components to the heat pump system COP value changes brought about by the same, are increased by more than 10%. However, due to the PVT collector system collector efficiency is low. It is not recommended.