The TEMP 2A-3 experiment was the first flight of a mechanically pumped two-phase ammonia thermal control system. This proof-of-concept mission was successfully flown on the STS-46 Shuttle flight in August 1992. The TEMP experiment performed well and all mission objectives were met. Valuable data has been obtained on two-phase pressure losses, heat transfer coefficients, and fluid management techniques in a micro-gravity environment. Overall temperature control results were excellent and within expected ranges. However, there were substantially more instabilities in the flow when compared with ground test data. Fortunately, the instabilities did not severely affect system operation. A description of the TEMP 2A-3 experiment is given and a comparison of the ground thermal vacuum and flight test data is presented.


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    Title :

    Thermal Energy Management Processes (TEMP 2A-3) Flight Experiment


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Conference On Environmental Systems ; 1993



    Publication date :

    1993-07-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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