Evaluation of Lubricants for R410A/R407C Applications in Scroll Compressor
نویسندگان
چکیده
Sonny G. Sundaresan Copeland Corporation Sidney, Ohio, U.S.A. HCFC 22 currently used in Air-Conditioning and Heat Pump applications, is being replaced by R407C and R410A, both HFC 32 based blends. Scroll compressors are being developed to meet the improved efficiency and other system performance requirements in Air-Conditioning and Heat Pump products in North America, Europe and Asia-Pacific. Lubricant selection and optimization for compressor and system performance with new HFC refrigerant blends are still ongoing. Compressor hardware design improvements are being made to meet the higher pressure and different Refrigerant-Lubricant interaction aspects with R410A. Different schools of thoughts are offered by lubricant manufacturers to meet contaminant control aspects faced by HFC users in hermetically sealed systems. This paper discusses the status of three leading candidate lubricant with R41 OA in scroll compressors namely, Mixed Acid POE (MAPOE), Fully Branched Acid POE (FBAPOE) and Polyvinyl Ethers (PVE).
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