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Refrigerant/oil interaction in HFC/ester oil systems: effects on thermodynamics and refrigerating capacity.

Kältemittel/Kältemaschinenöl-Wechselwirkungen in HFKW/Esteröl-Systemem: Auswirkung auf Thermodynamik und Anlagenleistung.

Author(s) : MORRISON J. D., SCHWENNESEN K.

Summary

The paper reports on the effect of refrigerating machine oils on thermodynamic properties and performance in the circuits of commercially available HFC blends. Azeotropic, near-azeotropic and zeotropic binary and ternary blends from R32, R143a, R125 and R134a, in combination with an ISO-VG32 polyolester, were considered. Calculations show that oil proportions of 1-2% can influence refrigerating performance, compression enthalpy and COP.

Details

Original title: Kältemittel/Kältemaschinenöl-Wechselwirkungen in HFKW/Esteröl-Systemem: Auswirkung auf Thermodynamik und Anlagenleistung.
Record ID : 1998-0108
Languages: German
Source: DKV-Tagungsbericht 23. 1996 Leipzig.
Publication date: 1996/11/20
Document available for consultation in the library of the IIR headquarters only.

Links

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Indexing

Themes: HFCs;
Lubricants
Keywords: R143a; R134a; Polyolester; R32; R125; Thermodynamic property; Substitute; Performance; Mixture; Oil; Refrigerant