New immiscible refrigeration lubricant for HFCs.
Author(s) : SUNAMI M., TAKIGAWA K., SUDA S., SASAKI U.
Summary
The study examines the capability of a family of very low-viscosity alkylbenzenes (AB) used in high-side rotary compressors for HFCs. In the development of refrigeration lubricants for HFCs, miscibility is one of the most important problems to be solved. Therefore polyalkylene glycol and polyol ester (POE), which have good miscibility, have been applied in new HFC applications. However, it is difficult for these lubricants to maintain long-term durability in high-side rotary compressors. In friction tests under high HFC pressure, ABs with much lower viscosities than mineral oil maintained a much stronger oil film than the combination of mineral oil/R12 or POE/HFCs. These results were also proven by compressor durability tests. From the study of the solubility of ABs and HFCs, it is suggested that the total amount of refrigerant can be reduced because HFCs are barely soluble with ABs inside the high-side shell.
Details
- Original title: New immiscible refrigeration lubricant for HFCs.
- Record ID : 1997-0766
- Languages: English
- Source: ASHRAE Transactions.
- Publication date: 1995/06/24
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
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Themes:
Compressors;
Lubricants - Keywords: Lubricant; Substitute; Miscibility; Refrigerant; Rotary compressor; Compressor
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- Author(s) : SHIRAFUJI Y., KATO T., IZAWA T., et al.
- Date : 1998/11/26
- Languages : Japanese
- Source: Proceedings of the International symposium on HCFC alternative refrigerants '98: latest technology for higher performance and higher efficiency air conditioning and refrigeration equipment to the 21st century.
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Control of refrigerant vapour release from poly...
- Author(s) : SWALLOW A., SMITH A., GREIG B.
- Date : 1995/06/24
- Languages : English
- Source: ASHRAE Transactions.
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Evaluation of HFC rotary compressor and system.
- Author(s) : NOMURA M., HIODOSHI S., TOYAMA T., KAWAHARA K., KANAYAMA T.
- Date : 1996/07/23
- Languages : English
- Source: Proceedings of the 1996 International Compressor Engineering Conference at Purdue.
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Evaluating lubricants for lower GWP refrigerant...
- Author(s) : KARNAZ J. A.
- Date : 2016/07/11
- Languages : English
- Source: 2016 Purdue Conferences. 23rd International Compressor Engineering Conference at Purdue.
- Formats : PDF
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Mischbarkeit, Löslichkeit und Löseverhalten von...
- Author(s) : DKV, SCHWENNESEN K., CORR S., RANDLES S., WHITTAKER A.
- Date : 1997/11/19
- Languages : German
- Source: DKV-Tagungsbericht 24. 1997, Hamburg.
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