Simulation study on solar-assisted air-source heat pump system for heating in cold area

Carries out a heating experiment on an air-source heat pump (ASHP)system heating for an office building in Zhengzhou city. Analyses the influences of outdoor temperature and heating load ratio on operation performance.The results indicate that ASHP system is technologically but not economically feasible in cold area in winter. Based on the experimental data, simulates and studies the combined system of ASHP and solar collector. Analyses the effects of condensing temperature, evaporating temperature, collector area and supply water temperature on the heating performance of the system for different heating areas, and recommends more rational operating and matching modes.