Advantages of using UO2-X in fuel elements are discussed.Change of the initial uranium dioxide content due to burn-up, themal diffusion, as well as fuel component carry-over through the fuel element cladding and vent system is calculated. It is shown that while the fuel element works, the oxygen coefficient increases. The initial value of O/U=1.990-1.998 providing preservation of the hypostoichiometric content during life time is recommended.The authors results on UO2-X structure investigation under conditions of heating-cooling and long storage, as well as comparative data on free swelling are given besides literature data on UO2-X properties.


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    Title :

    Possibilities of Using Hypostoichiometric Uranium Dioxide in Thermionic Fuel Elements


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    27th Intersociety Energy Conversion Engineering Conference (1992) ; 1992



    Publication date :

    1992-08-03




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English


    Keywords :


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