The biggest global issue currently is global warming and ozone layer depletion is one the reasons behind this. The domestic refrigerators are consuming millions of tons of chlorofluorocarbons and hydrofluorocarbons as refrigerants and damaging the environment through the ozone layer depletion. In current research the use of Liquified Pressurized Gas (LPG) as a refrigerant is experimentally investigated for refrigeration purpose. The LPG comprises of a mixture of 56% butane, 25% propane and approximately 17% iso- butane. It is economical, easily available, eco-friendly in nature and produces cooling effect in less time. The high-pressure LPG is stored in cylinder, and it is passed through the capillary tube of small diameter and large length, then it goes to evaporator and phase change of LPG occurs from liquid to gas through expansion process. Due to phase change from liquid to gas latent heat of evaporation is gained by the liquid refrigerant and the temperature decreased and LPG produces cooling effect in the surrounding environment.

Keywords- Liquefied petroleum gas; Chlorofluorocarbon; Hydrofluorocarbon; Ozone layer depletion; Global warming