Re-design of the thermostatic expansion valve (TXV) was necessary for the efficient use of HFC-134a refrigerant in mobile air conditioning applications. Laboratory work demonstrated the need for changing both valve characteristics and inside design. The use of the new expansion valve resulted in low HFC-134a system discharge pressures with either the serpentine or “proprietary” multiflow condensers. Vehicular wind tunnel and road tests both showed the HFC-134a A/C system to have better cooling performance and similar discharge pressures at less refrigerant charge than the conventional CFC-12 system, when using the new expansion valve and multiflow condenser.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Performance Evaluation of an Automotive Air Conditioner with Expansion Valve Control Using CFC-12 & HFC-134a Refrigerants


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Congress & Exposition ; 1991



    Erscheinungsdatum :

    01.02.1991




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Refrigerants CFC-12/HFC-134a and Submarine Atmosphere Control

    McCarrick, Alan D. / Nickens, Anthony D. / Jastrzebski, Stanley A. et al. | SAE Technical Papers | 1993


    Automotive air conditioner and expansion valve

    HAYAKAWA SATOSHI / YAMAMOTO AKIHIKO / SUGAMURA RYOUTA et al. | Europäisches Patentamt | 2017

    Freier Zugriff

    Thermal Flow Analysis of HFC-134a MFC Condenser for Automotive Air-Conditioner

    Hyun, Lee Kyu / Pil, Won Jong | SAE Technical Papers | 1997


    Thermal Flow Analysis of HFC-134a MFC Condenser for Automotive Air-Conditioner

    Lee Kyu Hyun / Won Jong Pil / Society of Automotive Engineers | British Library Conference Proceedings | 1997