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Compatibility of various process fluids with refrigeration oils.

[In Japanese. / En japonais.]

Author(s) : IKEDA H., TOMINAGA S.

Summary

Many kinds of process fluids are used in making components of refrigerating devices such as compressors and heat exchangers. These process fluids include cutting oils, stamping oils, rust preventive oils and cleaning solvents. Since removing these fluids perfectly after making the parts is very difficult, a small amount of these fluids inevitably contaminate the refrigerating systems. Some of the fluids accelerate the deterioration of refrigeration oils. Therefore, when introducing new refrigeration oils, it is necessary to confirm its compatibility with process fluids. In the report, the authors studied compatibility between refrigeration oils PVE (polyvinyl ether) and FB-POE (fully branched polyol ester) as used for HFC refrigerants, and various process fluids. As a result, FP-POE showed significant total acid number (TAN) increase particularly when water soluble-type process fluids were present. On the other hand, PVE showed minimal TAN increase and was confirmed to be more tolerant to contamination of process fluids than FB-POE.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2006-0563
  • Languages: Japanese
  • Source: The International Symposium on HCFC Alternative Refrigerants and Environmental Technology 2002: Latest technology for Energy Conservation, Refrigerants and Recycling on Air-Conditioning and Refrigeration Equipment for the 21st century. Proceedings.
  • Publication date: 2002/12/05

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