RELIABILITY STUDY OF COMPRESSOR FOR ROOM AIR CONDITIONERS USING HFC BASED REFRIGERANT

摘要

Main candidates of alternative refrigerant for HCFC22 used in air conditioning system are HFC based blended refrigerants. Especially R407C and R410A are researched with first priority by many compressor and air conditioner manufacturers. HFC based refrigerants have disadvantage in lubrication because of their molecule composition and we estimated them from tribological point of view. As a result, we have found several possible modification for lubricant and materials to maintain the reliability of compressors used in the HFC based refrigerant system.