Regeneration Thermal Analysis And Experiment Of Solar Liquid Desiccant In Guangzhou

Traditional air conditioning system is used to create a comfortable environment for people and improve the work efficiency. However, it also bring some problems accordingly such as the pressure from the energy and indoor health problems. With the increasingly serious energy problems and the gradual increase of the indoor quality requirements, new energy-saving, environmental protection air conditioning system has become the pressing needs of the people. The solar-powered liquid desiccant system has become research focus in the field of building energy efficiency.Previous scholars studied on regenerative temperature solar-powered liquid desiccant from the diffusion coefficient of the desiccant solution, regeneration, regeneration efficiency and mass transfer coefficient of liquid desiccant system, and achieved some results. Based on the energy efficiency coefficient of solar liquid desiccant system as a starting point, this article adopts the way of combining theoretical calculation and experimental study to research the most suitable regeneration temperature under "all renewable thermal energy using solar thermal energy" conditions.Hot and wet climate typical area of Guangzhou as an example, on the foundation of theoretical calculations of the amount of solar radiation in the region from March to October, and analyzes its value in use in the region. By simplifying the conditions for the establishment of solar water heaters and a counter-flow adiabatic regenerator mathematical model and using TURBO C++programming to discrete and solve the model, the most appropriate solution regeneration temperature of the region is calculated theoretically. Numerical calculation results show that the largest amount of regeneration in March and April in the corresponding regeneration temperature of40℃, the optimal regeneration temperature from May to October is59℃respectively,58℃,68℃,70℃,70℃and72℃. Finally, the actual collection of45℃hot water is202.4kg/day in March,and the collected heat amount is4050.4kJ per day.