ENVIRONMENT-FRIENDLY MIXED REFRIGERANT COMPOSITION FOR AN AUTOMOBILE AIR CONDITIONER

摘要

PURPOSE: An environment-friendly mixed refrigerant composition for an automobile air conditioner is provided to be able to be used in replacement of R134a refrigerant which is regulated as one of global environment destruction materials by the Montreal Protocol, and to be able to be immediately applied with the adjustment of the refrigerant amount without the design change of the conventional refrigerator system.;CONSTITUTION: A mixed refrigerant composition for replacement of Freon-based refrigerant R134a includes 15-25 weight% of 1,1-difluoroethane (CHF_2-CH_3) and 45-55 weight% of 2,3,3,3-tetrafluoropropene (CF_3CF=CH_2), 15-25 weight% of isobutane [CH (CH_3)_3] and 5-15 weight% of cyclopropane (C_3H_6) to the whole refrigerant composition. The refrigerant composition includes 20 weight% of 1,1-difluoroethane (CHF_2-CH_3), 50 weight% of 2,3,3,3- tetrafluoropropene, 20 weight% of isobutane of [CH (CH_3)_3], and 10 weight% of cyclopropane (C_3H_6).;COPYRIGHT KIPO 2013