Results of trade studies comparing optimum pumped fluid and hybrid heat pipe/pumped fluid radiator designs are presented. Design variables considered in the system optimization analyses include transport fluid properties and Reynolds number, pump loop component reliabilities, micrometoroid protection, heat pipe spacing, manifolding and flow routing in pumped fluid designs, transport tubing spacing and diameters, and radiator fin parameters. Criteria for evaluating candidate radiator system designs include mass, radiator area, and overall system reliability. The studies show advantages in constructing large systems from small independent subsystems with oversizing to account for subsystem failures. The optimum size and survivability of the subsystems are identified as a function of the radiator construction, the system heat rejection requirements, the mission duration, and the system reliability requirements. (Wassmann)


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    Title :

    Optimum design of spacecraft radiators for large capaciyx or long duration mission applications


    Additional title:

    Optimaler Entwurf von Raumfahrzeugheizkoerpern mit grosser Kapazitaet fuer die Anwendung bei Langzeitmissionen


    Contributors:

    Published in:

    Publication date :

    1979


    Size :

    8 Seiten, 10 Bilder, 7 Tabellen, 19 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English