A dual-membrane gas trap is currently used to remove gas bubbles from the Internal Thermal Control System (ITCS) coolant on board the International Space Station (ISS). The gas trap consists of concentric tube membrane pairs, comprised of outer hydrophilic tubes and inner hydrophobic fibers. Liquid coolant passes through the outer hydrophilic membrane, which traps the gas bubbles. The inner hydrophobic fiber allows the trapped gas bubbles to pass through and vent to the ambient atmosphere in the cabin. The gas trap was designed to last for the entire lifetime of the ISS, and therefore was not designed to be repaired. However, repair of these gas traps is now a necessity due to contamination from the on-orbit ITCS fluid and other sources on the ground as well as a limited supply of flight gas traps. This paper describes a novel repair technique that has been developed that will allow the refurbishment of contaminated gas traps and their return to flight use.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A Novel Repair Technique for the Internal Thermal Control System Dual-Membrane Gas Trap


    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




    A Novel Repair Technique for the Internal Thermal Control System Dual-Membrane Gas Trap

    Leimkuehler, T. O. / Patel, V. / Reeves, D. R. et al. | British Library Conference Proceedings | 2005


    Operational Experience with the Internal Thermal Control System Dual-Membrane Gas Trap

    Lukens, Clark / Reeves, Daniel R. / Holt, James M. et al. | SAE Technical Papers | 2003


    Operational Experience with the Internal Thermal Control System Dual-Membrane Gas Trap

    Leimkuehler, T. O. / Lukens, C. / Reeves, D. R. et al. | British Library Conference Proceedings | 2003


    Dual-Membrane Gas Trap for the Space Station Freedom Internal Thermal Control System

    Brubaker, Inara M. / Faust, Michael B. / Zhou, S. James | SAE Technical Papers | 1993


    Recent Operational Experience with the Internal Thermal Control System Dual-Membrane Gas Trap

    Leimkuehler, T. O. / Lukens, C. / Reeves, D. R. et al. | British Library Conference Proceedings | 2004