• Title of article

    IncreasedfuelburnupinaCANDUthoriumreactorusingweapongradeplutoniumOriginalResearchArticle

  • Author/Authors

    Sümer?ahin، نويسنده , , KadirY?ld?z، نويسنده , , Hac?Mehmet?ahin، نويسنده , , Necmettin?ahin، نويسنده , , AdemAc?r، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2006
  • Pages
    11
  • From page
    1778
  • To page
    1788
  • Abstract
    WeapongradeplutoniumisusedasaboosterfissilefuelmaterialintheformofmixedThO2/PuO2fuelinaCanadaDeuteriumUranium(CANDU)fuelbundleinordertoassuretheinitialcriticalityatstartup. Twodifferentfuelcompositionshavebeenused:(1)97%thoria(ThO2)+3%PuO2and(2)92%ThO2+5%UO2+3%PuO2.Thelatterisusedtodenaturizethenew233Ufuelwith238U.Thetemporalvariationofthecriticalityk∞andtheburn-upvaluesofthereactorhavebeencalculatedbyfullpoweroperationforaperiodof20years.Thecriticalitystartsbyk∞=∼1.48forbothfuelcompositions.Asharpdecreaseofthecriticalityhasbeenobservedinthefirstyearasaconsequenceofrapidplutoniumburnout.Thecriticalitybecomesquasiconstantafterthesecondyearandremainsabovek∞>1.06for∼20years.Afterthesecondyear,theCANDUreactorbeginstooperatepracticallyasathoriumburner. Veryhighburnupcouldbeachievedwiththesamefuelmaterial(upto500,000MW·D/T),providedthatthefuelrodcladdingswouldbereplacedperiodically(afterevery50,000or100,000MW·D/T).Thereactorcriticalitywillbesufficientuntilagreatfractionofthethoriumfuelisburntup.Thiswouldreducefuelfabricationcostsandnuclearwastemassforfinaldisposalperunitenergydrastically.
  • Journal title
    Nuclear Engineering and Design Eslah
  • Serial Year
    2006
  • Journal title
    Nuclear Engineering and Design Eslah
  • Record number

    941297

    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=941297