EPA/DOE energy star program has effectiveley improved efficiency of home air conditioners by 25 % with US Dollars 25 billion annual saving due to the requirement of minimum SEER 10. The population of AC powered vehicles is estimated at around 180 million. The quantity may be even larger than that of home AC. Currently automotive AC seems to work less efficiently with estimation for EER of 5 typically. If the Energy Star program could extend into automotive AC to promote energy efficiency, the result would be a significant energy saving valued at 3.38 billion gallons of gas (US Dollars 5.4 billion) annually would be resulted. To find out what caused the situation, a contrastive study has been conducted on refrigerants thermal properties, system cycling performances etc. R134a used in automobiles may not be a key factor for such a negative result, but the AC compressors may be evidently a prominent consideration. A realistic prediction for the EER rating on automotive application is 8, which would result in a U.S. Dollar 4.05 billion saving per year and a U.S. Dollar 5.4 billion if it reaches 10.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Could automotive HVAC become an EPA/DOE energy star?


    Additional title:

    Kann eine Fahrzeug-Klimaanlage ein EPA/DOE-Energy-Star werden?


    Contributors:
    Zhai, K. (author)


    Publication date :

    2001


    Size :

    7 Seiten, 6 Bilder, 6 Tabellen, 8 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Could Automotive HVAC Become An EPA/DOE Energy Star?

    Zhai, Kelvin | SAE Technical Papers | 2001


    2001-01-2480 Could Automotive HVAC Become an EPA/DOE Energy Star?

    Zhai, K. / Society of Automotive Engineers | British Library Conference Proceedings | 2001


    HVAC Door actuators for automotive HVAC

    HAN JOONG MAN / AN KYUNG JU / LEE JIN JAE et al. | European Patent Office | 2025

    Free access

    AUTOMOTIVE HVAC SYSTEM

    WISNIEWSKI CHRISTOPHER / POLUS MICHAEL / SWAILES KRISTIE | European Patent Office | 2017

    Free access

    AUTOMOTIVE HVAC SYSTEM

    WISNIEWSKI CHRISTOPHER / POLUS MICHAEL / SWAILES KRISTIE | European Patent Office | 2016

    Free access