Study On Operation Characteristics Of Heat Pump System Using Solar Energy As Heat Source

With the rapid development of the construction industry,building energy consumption has become the key node of energy saving.The heat pump system using solar energy as heat source is a combination of solar energy phase change thermal storage wall and heat pump system.It absorbs solar radiation during the day,stores the solar energy in the phase change material,and releases the energy to the heat pump system at night.It makes the heat pump system to achieve the purpose of energy saving and emission reduction,and provides the research direction for the development of low-carbon technologies,the promotion of renewable energy applications and the improvement of energy efficiency.This paper mainly includes the following parts: the system experiment,the simulation model of the evaporator,the performance simulation of the evaporator and the heat pump system.The experimental platform is built,and several experiments are carried out.The results show that the indoor temperature can be maintained at 22 ?-26?.During the process of the system,the minimum power of the compressor can be maintained at about 200 W.The experimental data provides support for simulation model validation and performance study of evaporator and system.The steady state distribution parameter model of evaporator is established.The simulation program is verified by the experimental data,The results show that the simulated data are in good agreement with the experimental data when the system is stable.The evaporator is simulated by the simulation model,and the influence of evaporator parameters on the performance of the evaporator is studied.The experimental data are input into the program,it shows that the maximum heat transfer rate of the evaporator can reach 6k W,and the system COP can reach9.And the performance of the system is analyzed and evaluated.