Research On Coupling Characteristics Of Wind-driven Heat Pump And Solar Thermal Power Generation System

Clean energy,as a using method of energy promoted by the country,has unique advantages in protecting ecological environment and adjusting energy structure.wind and solar energy will be the top priorities for future.Therefore,utilization of wind and solar have broad prospects,They are also important measures for energy conservation and environmental protection.From the wind and solar energy technologies,wind-driven heat pump and solar thermal power generation were selected.A coupled system model of wind-driven heat pump and solar thermal power generation were established.Thermodynamic analysis of the system was performed by using a simulation model.Under stable conditions,when the wind speed is 6 m/s,the solar radiation intensity is 800 W/m~2,and the ambient temperature is 15?,the coupling system collector loss is 64.81%.The efficiency is40.59%.Compared with a single heat pump or solar thermal power generation system,the coupling system improves the efficiency of the generator set by 11.97%.It increase the COP of the heat pump by 125.98%.With the increase of wind speed,heat supplied by the system increases,and the stability of heat pump becomes lower.Choosing proper evaporation temperature and condensing temperature can improve the stability of wind-driven heat pump.The analysis of matching characteristics between heat pump and compressor provides guidance for the selection of compressors for heat pump.The main innovation of thesis is that according to the principle of energy cascade utilization,a new type of complementary utilization is proposed.The research results can provide guidance for the optimization of thermal power generation system and winddriven heat pump.Figure57;Table12;Reference 51...