R22 SUBSTITUTE MIXED REFRIGERANT

摘要

Provided are a mixture refrigerant for an air conditioner or a freezer which can replace R22 (monochlorofluoromethane, CHFClF2, or HCFC22), and a freezing system using the mixture refrigerant. The mixture refrigerant comprises 71-90 wt% of R290 (propane); and 10-29 wt% of R152a (1,1-difluoroethane). The mixture refrigerant has an ozone depletion potential (ODP) of 0.0 and a low global warming potential (GWP) and shows COP and VC similar to those of R22 (monochlorofluoromethane).