Extensively utilizing a special advanced airbreathing propulsion archives database, as well as direct contacts with individuals who were active in the field in previous years, a technical assessment of cryogenic hydrogen-induced air liquefaction, as a prospective onboard aerospace vehicle process, was performed and documented. The resulting assessment report is summarized. Technical findings are presented relating the status of air liquefaction technology, both as a singular technical area, and also that of a cluster of collateral technical areas including: compact lightweight cryogenic heat exchangers; heat exchanger atmospheric constituents fouling alleviation; para/ortho hydrogen shift conversion catalysts; hydrogen turbine expanders, cryogenic air compressors and liquid air pumps; hydrogen recycling using slush hydrogen as heat sink; liquid hydrogen/liquid air rocket-type combustion devices; air collection and enrichment systems (ACES); and technically related engine concepts.


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    Title :

    Cryogenic hydrogen-induced air liquefaction technologies


    Contributors:

    Conference:

    AGARD Symposium of the Propulsion and Energetics Panel on Hypersonic Combined Cycle Propulsion ; 1990 ; Madrid, Spain



    Publication date :

    1990-10-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English






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