An automotive propulsion concept is presented which utilizes liquid nitrogen as the working fluid for an open Rankine cycle. Ambient heat exchangers are used to power an engine that is configured to maximize heat transfer during the expansion stroke. If sufficient heat input during the expansion process can be realized then this cryogenic propulsive system would provide greater automotive ranges and lower operating costs than those of electric vehicles currently being considered for mass production. The feasibility of meeting this engineering challenge has been evaluated and several means of achieving quasi-isothermal expansion are discussed.


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    Title :

    Quasi-Isothermal Expansion Engines for Liquid Nitrogen Automotive Propulsion


    Additional title:

    Sae Technical Papers


    Contributors:
    Hertzberg, A. (author) / Mattick, A. T. (author) / Knowlen, C. (author) / Deparis, H. (author) / Williams, J. (author)

    Conference:

    1997 SAE Future Transportation Technology Conference and Exposition ; 1997



    Publication date :

    1997-08-06




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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