Research On The Performance Of Solar Energy Absorption Heat Pump Heating System

The use of solar energy as the driving heat source combined with absorption heat pump technology to heat buildings is in line with China’s current renewable energy utilization policy and can achieve energy conservation and emission reduction in the area of heating.Therefore,solar absorption heat pumps have attracted attention and have a bright future.This article first explains and analyzes the current state of energy use in the world,then leads to the development and utilization of solar energy,and then introduces the basic theory of solar radiation.Based on the mathematical description of solar collectors and the mathematical model of absorption heat pump,TRNSYS is used to simulate The software simulated single-value operating conditions for the solar heat collection system and the absorption heat pump system,and obtained the general laws that affect the performance of the solar heat collector and the performance of the absorption heat pump system.Based on solar heat collection technology and absorption heat pump technology,this paper proposes a solar absorption heat pump heating system.The system uses solar energy as the driving heat source,and water as the heat transfer medium for the solar heat collector and the absorption heat pump.The buried pipe serves as the low-temperature heat source side of the system.Based on the mathematical model of solar heat collector and the mathematical model of absorption heat pump in this paper,the TRNSYS simulation software is used to build a solar absorption heat pump heating system.This system takes the meteorological parameters of Beijing area as meteorological simulation data,simulates the system under different working conditions during the heating period,and obtains the solar heat gain,heat pump heat supply,and absorption of the system with or without thermal storage operating conditions.General conclusions of the annual performance coefficient and solar energy utilization parameters of the heat pump,and then under the condition of heat storage,the influence of the heat collection area and heat storage volume on the performance of the heat pump unit was simulated and studied.In the established solar absorption heat pump Based on the heating system,the operation plan was changed to increase the high-temperature side return water and low-temperature side heat exchange processes.By changing the return water heat exchange flow and heat collection area,the relevant parameter change trends of the system under different shunt flows were simulated and obtained.Research on the optimization design of solar absorption heat pump heating system provides theoretical support.