This paper describes the use, operation, and preliminary thermal modeling of a Portable Oxygen Subsystem (POS). The POS is a partial rebreather which is being developed for Shuttle Orbiter support. Normally used as a pre-breather for denitrogenization prior to EVA, this semi-closed, breath powered breathing system can also be used for emergencies in the event of a contaminated or oxygen-deficient cabin atmosphere, to support an emergency transfer between vehicles, or as a clean oxygen supply in the event of a contaminated ambient atmosphere in the vicinity of the Orbiter after landing.


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    Title :

    A Portable Oxygen Subsystem - Description and preliminary thermal performance prediction


    Contributors:
    Sribnik, F. (author)

    Conference:

    Intersociety Environmental Systems Conference ; 1980 ; San Diego, CA


    Publication date :

    1980-07-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English