International Space Station (ISS) Crewmembers perform one of three denitrogenation protocols prior to performing Extravehicular Activities (EVAs) using the International Space Station (ISS) Airlock. The three denitrogenation protocols are: a) Exercise, b) Campout, and c) In-suit. EVA gas usage is categorized into Denitrogenation, Extravehicular Mobility Unit (EMU) oxygen use during EVAs, and air loss gas usage. The amount of gas usage depends on the denitrogenation protocol that is used. Each protocol's gas usage will differ as a result of different requirements of denitrogenation and EMU support. Flight data is correlated with theoretical values when it is available. The correlation to flight data provides a validation of the analysis data.Theoretical and actual gas usages from the ISS were calculated for EVAs out of the Airlock during Stage 7A to Stage 11A. Components of denitrogenation and EMU support gas usage are included. These components include quick donning mask, EMU purge, EMU prebreathe, EMU fill, and partial pressure control support. The amount of air loss experienced during the depressurization of the ISS Airlock Crewlock to space is also included.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    International Space Station (ISS) Extravehicular Activity (EVA) Gas Usage


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Conference On Environmental Systems ; 2005



    Publication date :

    2005-07-11




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Extravehicular Activity Hardware for International Space Station

    Dutton, J. | British Library Online Contents | 1997



    Overview of International Space Station Extravehicular Activity System

    Dutton, J. / American Society for Civil Engineers; Aerospace Division | British Library Conference Proceedings | 1996



    International Space Station Computer Aided Extravehicular Activity Worksite Analysis

    Hagale, T. J. | British Library Conference Proceedings | 1996