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In response to global regulation of high global warming potential (GWP) refrigerants, the application of lower GWP refrigerants to air conditioning equipment has been strongly accelerated. Toward the adoption of new refrigerant alternatives, evaluations of tribological properties of sliding elements in compressors are essential because the physical properties of refrigerant oil mixed with the refrigerant strongly affect the seizure resistance of the compressors. Here, we selected several refrigerants including hydrofluoroolefin (HFO) as candidates for a low-GWP refrigerant applicable to refrigerant compressors. We measured the viscosity of lubricating oil mixed with the liquid refrigerant. We also performed seizure resistance tests in refrigerant oil with low concentration in the liquid refrigerant to evaluate seizure resistance under the condition that the liquid refrigerant is returned to the compressor.
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Details
- Original title: Tribological properties of sliding elements in refrigerant compressors lubricated by low-GWP refrigerant/oil mixtures.
- Record ID : 30024298
- Languages: English
- Source: 2018 Purdue Conferences. 24th International Compressor Engineering Conference at Purdue.
- Publication date: 2018/07/09
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Indexing
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Themes:
Compressors;
HFCs;
Lubricants;
Blends - Keywords: Viscosity; Friction; Lubrication; Low GWP; Oil; HFO; Testing; Refrigerant; Compressor
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Concentration measurement of refrigerant/lubric...
- Author(s) : GINIES P., EVEN Y., GUESNAY Q.
- Date : 2018/07/09
- Languages : English
- Source: 2018 Purdue Conferences. 24th International Compressor Engineering Conference at Purdue.
- Formats : PDF
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Properties of lubricants for refrigeration syst...
- Author(s) : NAKAJIMA S., MATSUMOTO T., KAWAGUCHI Y.
- Date : 2018/07/09
- Languages : English
- Source: 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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THE SOLUBILITY AND VISCOSITY OF MIXTURES OF R13...
- Author(s) : THOMAS R. H. P., WU W. T., PHAM H. T.
- Date : 1991/08/10
- Languages : English
- Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
- Formats : PDF
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R404A alternative refrigerant D407.
- Author(s) : ARIMOTO H.
- Date : 2016/04
- Languages : Japanese
- Source: Refrigeration - vol. 91 - n. 1062
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POE lubricant candidates for low GWP Refrigerants.
- Author(s) : CHEN Y. K., HUNG J-T., TANG H-H., et al.
- Date : 2016/07/11
- Languages : English
- Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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