Refrigerant-lubricant-interaction in HFC-esteroil systems.
Kältemittel/Kälte-maschinenöl-Wechsel-wirkungen in HFKW/Esteröl-Systemen.
Author(s) : MORRISON J. D., SCHWENNESEN K.
Type of article: Article
Summary
The paper reports on further studies of the effect of lubricants in perturbing the thermodynamic properties and cycle performance of commercially available HFC refrigerant blends. The effects of the ISO VG 32 polyolester EMKARATE RL 32S on azeotropic, near-azeotropic and zeotropic blends, both binary anf ternary, comprising R32, R143a, R125 and R134a are presented. A thermodynamic model was developed. Under most normal system operating conditions, the effects of oil are expected to be small but may become significant for those points in the cycle operating close to the dew point line of the oil-free refrigerant.
Details
- Original title: Kältemittel/Kälte-maschinenöl-Wechsel-wirkungen in HFKW/Esteröl-Systemen.
- Record ID : 1998-0803
- Languages: German
- Source: KI Luft Kältetech. - vol. 33 - n. 3
- Publication date: 1997/03
- Document available for consultation in the library of the IIR headquarters only.
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Indexing
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Themes:
HFCs;
Lubricants - Keywords: R143a; R134a; Polyolester; Lubricant; R32; R125; Substitute; Mixture; Refrigerant
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Kältemittel/Kältemaschinenöl-Wechselwirkungen i...
- Author(s) : MORRISON J. D., SCHWENNESEN K.
- Date : 1996/11/20
- Languages : German
- Source: DKV-Tagungsbericht 23. 1996 Leipzig.
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Viscosities for R22 alternatives and their mixt...
- Author(s) : GELLER V. Z., PAULAITIS M. E., BIVENS D. B., YOKOZEKI A.
- Date : 1994/07/19
- Languages : English
- Source: Proceedings of the 1994 International Refrigeration Conference at Purdue.
- Formats : PDF
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Practical solutions to new refrigeration needs.
- Author(s) : STEWART A., RANDLES S.
- Date : 1995/05
- Languages : English
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First neutral measurement results of substitute...
- Date : 1994/06
- Languages : German
- Source: Tiefkühl-Rep. - vol. 22 - n. 6
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Characteristics of refrigerant-lubricant mixtur...
- Author(s) : CORR S., MURPHY F. T., GILBERT B. E., YOST R. W.
- Date : 1993
- Languages : English
- Source: ASHRAE Transactions.
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