Selected systems aspects of a 300 kW nuclear reactor power system for spacecraft have been studied. The approach included examination of two candidate missions and their associated spacecraft, and a number of special topics dealing with the power system design and operation. The missions considered were a reusable orbital transfer vehicle and a space-based radar. The special topics included: power system configuration and scaling, launch vehicle integration, operating altitude, orbital storage, start-up, thawing, control, load following, procedures in case of malfunction, restart, thermal and nuclear radiation to other portions of the spacecraft, thermal stresses between subsystems, boom and cable designs, vibration modes, altitude control, reliability, and survivability. Among the findings are that the stowed length of the power system is important to mission design and that orbital storage for months to years may be needed for missions involving orbital assembly. The power system design evolved during the study and has continued to evolve; the current design differs somewhat from that examined in this paper. (ERA citation 13:056566)


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    Title :

    System Aspects of a Space Nuclear Reactor Power System


    Contributors:
    L. Jaffe (author) / T. Fujita (author) / R. Beatty (author) / P. Bhandari (author) / E. Chow (author)

    Publication date :

    1988


    Size :

    18 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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