On-orbit temperature and humidity control (THC) is more easily accomplished when the THC hardware is either consistently dry (i.e., no humidity control is occurring), or consistently wet. The system is especially challenged when intermittent wet/dry conditions occur. The first six years of on-orbit ISS operations have revealed specific concerns within the THC system, specifically in the condensing heat exchanger and the downstream air/water separator. Failed or degraded hardware has been returned to ground and investigated. This paper presents the investigation findings, and the recommended hardware and procedural revisions to prevent and recover from the effects of intermittent condensing conditions.


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    Title :

    Challenges to Cabin Humidity Removal Presented by Intermittent Condensing Conditions


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Conference On Environmental Systems ; 2007



    Publication date :

    2007-07-09




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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