During extravehicular activities (EVAs) it is crucial to keep the astronaut comfortable. Currently, a sublimator rejects to space both the astronaut's metabolic heat and that produced by the Portable Life Support System. In doing so, it consumes up to 3.6 kg (8 lbm) of water; the single largest expendable during an eight-hour EVA. While acceptable for low earth orbit, resupply for moon and interplanetary missions will be too costly. Fortunately, the amount of water consumed can be greatly reduced if most of the heat load is radiated to space. However, the radiator must reject heat at the same rate that it is generated to prevent heat stroke or frostbite. Herein, we report on a freezable radiator and heat exchanger to proportionally control the heat rejection rate.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Performance Testing of an Advanced Lightweight Freezable Radiator


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Conference On Environmental Systems ; 2006



    Publication date :

    2006-07-17




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Freezable Radiator Testing

    Lillibridge, Sean / Navaroo, Moses / Cognata, Thomas et al. | AIAA | 2010



    Six-Tube Freezable Radiator Testing and Model Correlation

    Lillibridge, Sean / Navarro, Moses | AIAA | 2012


    Lightweight, Flexible, and Freezable Heat Pump/Radiator for EVA Suits

    Trevino, Luis A. / Izenson, Michael G. / Chen, Weibo | SAE Technical Papers | 2008


    Six-Tube Freezable Radiator Testing and Model Correlation

    Lillibridge, S. / Navarro, M. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2012