Abstract The aim of this paper is to investigate the possibility of using an R-134a heat pump system with a conventional air-conditioning system for zero-emission vehicles. A heat pump system is one solution to heating the cabin and defrosting the windshield while consuming little energy. The system components consist of an internal heat exchanger, external heat exchanger, electrically driven compressor, electric expansion valve, and refrigerant flow change valves. Cooling capacity was examined by varying vehicle driving conditions and the compressor’s rotational speed. Heating performance for the heat pump system was investigated with various outside air temperatures and compressor rotational speeds. The experimental results using a heat pump system could provide thermal comfort in the cabin with smaller energy consumption than a direct electrical heating system. Heating capacity and air discharge temperature are up to 4.9 kW and 41.7°C, respectively, at an outside air temperature of 0°C and 7000 rpm compressor rotational speed. The power consumption of the heat pump system is about one third that of the electric PTC heating system at the same heating capacity.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Experimental study on the heat pump system using R134a refrigerant for zero-emission vehicles


    Beteiligte:
    Lee, D. (Autor:in)


    Erscheinungsdatum :

    2015




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    55.20$jStraßenfahrzeugtechnik / 55.20 Straßenfahrzeugtechnik