This paper describes the design of the Thermoelectric Electromagnetic (TEM) pump used in the SP-100 space power system. The TEM pump is designed to pump liquid (molten) lithium (Li) coolant in the Primary Heat Transport Subsystem (PHTS) and Heat Rejection Subsystem (HRSS). The pump utilizes advanced Thermoelectric (TE) cells to generate electric current that induces magnetic flux in a Z-shaped magnetic structure. The electric current and magnetic flux pass through the liquid Li perpendicular to each other to create the pumping force. The TE cells are semiconductors located between rectangular ducts connected to the reactor hot PHTS piping and the cooler HRSS piping. The temperature difference across the TE cells generates the voltage to power the pump. The design provides a minimum mass, self-regulated pump, with no moving parts and self-powered by an internal temperature gradient.


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    Title :

    Thermoelectric electromagnetic pump design for SP-100


    Additional title:

    Thermoelektrische elektromagnetische Pumpenkonstruktion fuer SP-100


    Contributors:
    Collett, J. (author) / Kugler, W. (author) / Sinha, U. (author) / Surjadi, T. (author)


    Publication date :

    1988


    Size :

    6 Seiten, 8 Bilder, 11 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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