Research On The Integration Of Heat Storage And Heat Storage In Solar Absorption Refrigeration System

With the rapid development of our country's economy,energy consumption is increasing year by year.Now,China has become the world's largest energy consuming country.Along with the energy consumption,environmental pollution problems have become increasingly prominent,consumption structure of coal as main energy source for a long time,resulting in the air pollution in our country is more and more serious,the use of new energy sources is particularly important.With the rapid development of solar energy heat pump technology and phase change heat storage technology,this paper focuses on the application of solar absorption refrigeration system in independent buildings in different forms of heat storage in the theoretical analysis and simulation calculation.First,using MATLAB to build the vacuum tube collector,integrated model of vacuum tube collector with heat collection and phase change heat storage,and then call the corresponding collector model M files in the TRNSYS platform.establish absorption refrigeration system with solar thermal energy storage,latent heat storage and sensible heat latent heat combined heat storage without auxiliary heat source and auxiliary heat source,and the parameters of the system were simulated.The calculation results show that the meteorological conditions in Shijiazhuang area,6,7,8,the refrigerating capacity of the latent heat solar absorption refrigeration system without auxiliary heat source is increased by 9.99% compared with sensible heat storage,the collector efficiency increased by 6.66%,the coefficient of performance of the refrigeration unit slightly improved,the system power consumption is reduced by 10.97%.System COP to enhance the 23.54%;The sensible heat and latent heat storage after combined than the sensible heat,the Refrigerating capacity increased by 9.49%,the heat collector efficiency increased by 9.48%,the system power consumption is basically unchanged,the system COP upgrade 10.34%.In the refrigeration capacity under the premise,the heat collector efficiency of the absorption refrigeration system with auxiliary heat source,is increased by 7.34% compared with sensible heat storage,the coefficient of performance of the refrigeration unit is basically unchanged,the system power consumption is reduced by 11.26%,energy consumption reduced by 32.80% solar assisted heat source,can guarantee to enhance the rate of 10.29%;The sensible heat and latent heat storage after combined than the sensible heat,the collector efficiency increased by 10.51%,the coefficient of performance and power consumption of refrigeration unit is basicallyunchanged,energy consumption reduced by 31.46% solar assisted heat source,which enhance the rate of 9.97%.In the end,the absorption refrigeration system and the electric air conditioning system with auxiliary heat source are analyzed.Economic analysis shows that the solar latent heat storage refrigeration system is more economical in the independent construction of the urban villa.