Thermal design features of the ESA European Polar Platform are described. Due to the low conductivity of the CFRP/aluminium honeycomb sandwich panels of the Payload Equipment Bay, carbon/carbon thermal doublers are used as heat spreaders for high dissipating units. The main challenge for the thermal design of the Data Relay Satellite Terminal Outboard Assembly are the motor gears and the rotary joints. High RF dissipation combined with low thermal capacitances result in extreme orbital temperature variations. The temperature limits are met by a proper selection of thermooptical properties and thermostatically controlled heaters.


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    Title :

    Polar Platform - Thermal Control of Payload Equipment Bay and Data Relay Satellite Terminal


    Additional title:

    Sae Technical Papers


    Contributors:
    Cataloglu, A. (author) / Reich, G. (author) / Szigetvari, Z. (author)

    Conference:

    International Conference on Environmental Systems ; 1995



    Publication date :

    1995-07-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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