A search for replacements for CFC-12 in automotive air conditioning has led to the discovery of near azeotrope-like ternary blends of HCFC-22, HFC-152a, and CFC-114 or HCFC-124. Ozone depletion potential is reduced to 0.42 with the blend containing CFC-114, and to 0.03 with the blend containing HCFC-124. The blends provide automotive cooling performance slightly better than CFC-12, have good oil/refrigerant/metals stability, and will not become flammable during hose permeation or vapor leaks. Based on initial tests, the blends appear to be viable CFC-12 replacements for vehicles equipped with nylon lined refrigerant hoses, alkylbenzene oil as compressor lubricant, and possibly molecular sieve desiccant of three Angstrom pore size.


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    Title :

    Evaluation of fluorocarbon blends as automotive air conditioning refrigerants


    Additional title:

    Untersuchung von Fluorkohlenstoffgemischen als Kuehlmittel fuer Klimageraete in Kraftfahrzeugen


    Contributors:
    Bivens, D.B. (author) / Gorski, R.A. (author) / Wells, W.D. (author) / Yokozeki, A. (author) / Lindstrom, R.A. (author) / Shimon, R.L. (author)

    Published in:

    SAE-Papers ; Mar ; 1-8


    Publication date :

    1989


    Size :

    8 Seiten, 10 Bilder, 4 Tabellen, 8 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Evaluation of Fluorocarbon Blends as Automotive Air Conditioning Refrigerants

    Yokozeki, A. / Bivens, D. B. / Gorski, R. A. et al. | SAE Technical Papers | 1989


    Evaluation of fluorcarbon blends as automotive air conditioning refrigerants

    Bivens,D.B. / Gorski,R.A. / Wells,W.D. et al. | Automotive engineering | 1989


    New Refrigerants for Automotive Air Conditioning

    Murphy, K. P. | SAE Technical Papers | 1971


    A Low Pressure Non-Fluorocarbon Automotive Air Conditioning System

    Edwards, Thomas C. | SAE Technical Papers | 1984


    A Low Pressure Non-Fluorocarbon Automotive Air Conditioning System

    Edwards,T.C. / Rovac,US | Automotive engineering | 1984