The Performance of An Air-Conditioning System with the Refrigerating Circle Using Air as Refrigerant

摘要

Because of the deep investigation on phasing out CFCs in refrigeration and air conditioning fields, the air, which was considered as a refrigerant, is concerned more and more due to its friendly properties to the environment of human living. Based on, in the paper the thermodynamic analysis for a refrigerating circle using air as refrigerant, the performance on the refrigerating circle that works under both high pressure state and vacuum condition was analyzed, the running characteristics of the circle in opened style and closed one were compared.The possibility of saving energy of air refrigerating circle using return air was discussed.