Abstract:

A solar-powered adsorption cooling system was designed.The system can realize both open-type circulation mode and closed circulation mode by switching the pipeline.The operation performance under two different circulation modes was studied，which includes temperature variations of solar collector arrays and adsorption chillers as well as refrigerating output variations of the system.From the experiments，it was shown that open-type system operated stably because of regulating effect by heat storage water tank.However，obvious wave characters could be observed in the operation of closed system.Besides，closed system has the advantages of higher solar collecting efficiency as well as higher COP，which leads to evident energy conservation.