A greater number of manned extravehicular activities (EVAs) are anticipated for the United States Space Station compared to the few experienced on Space Shuttle missions. This requires the design of a new generation extravehicular mobility unit (EMU). Limitations inherent in the current EMU power supply--zinc silver-oxide batteries--include dry shelf-life, active wet-life, cycle-life, and recharge time, thus making its usage impractical for the Space Station.An alternative solution, a fuel cell energy storage system (FCESS), is being explored by Ergenics Power Systems, Inc. (EPSI), Wyckoff, N.J., with funding from NASA/Johnson Space Center. The ion-exchange membrane (IEM) fuel cell under consideration utilizes hydrogen stored as a metal hydride. EPSI has demonstrated experimentally that the fuel cell/hydride technology pair should be a primary candidate EMU power supply for its high volumetric/energy density and cycle life, quick recharge, durability, EMU integration, and safety.This paper describes the EMU (IEM) hydrogen-oxygen fuel cell being developed by EPSI including its construction, hydrogen storage, hydride recharge, waste heat and water removal.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A Fuel Cell Energy Storage System for Space Station Extravehicular Activity


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    Intersociety Conference on Environmental Systems ; 1988



    Erscheinungsdatum :

    1988-07-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Simulation System for Space Station Extravehicular Activity

    J. A. Marmolejo / C. Shepherd | NTIS | 1993



    Extravehicular Activity Hardware for International Space Station

    Dutton, J. | British Library Online Contents | 1997


    A Simulation System for Space Station Extravehicular Activity

    Shepherd, Charles K. / Marmolejo, Jose A. | SAE Technical Papers | 1988


    A Fuel Cell Energy Storage System Concept for the Space Station Freedom Extravehicular Mobility Unit

    Marmolejo, Jose / Rosso, Matthew J. / Adlhart, Otto J. | SAE Technical Papers | 1989