Title of article :
Block-typeHTGRspentfuelprocessing:CEAinvestigationprogramandinitialresultsOriginalResearchArticle
Author/Authors :
MichelMasson، نويسنده , , StéphaneGrandjean، نويسنده , , JerômeLacquement، نويسنده , , StéphaneBourg، نويسنده , , JeanMarieDelauzun، نويسنده , , JacquesLacombe، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Abstract :
ConsideringthecriteriaputforwardbytheGenerationIVForumtoselectfuturenuclearsystems(preservationofresources,minimizationoffinalwasteimpact,economics,etc.),theimpetusfortheveryhigh-temperatureHe-cooledreactorraisestheissueofprocessingthefuelinthecontextofaclosedcyclewithactiniderecycling.Duetotheuniquestructureoftheparticlefuelusedforthisclassofreactors,thedifficultiesessentiallyinvolveaccessibilitytotheuraniumkernelscoatedbycarbonandSiClayersanddispersedinalargevolumeofgraphite.Startingfrompastexperienceinthisfield,aresearchprogramhasbeenrecentlyundertakenbytheCEAtoproposeattractivesolutions.Themechanicalextractionofcompactsfromthespentfuelblocksappearstobeapromisingapproach,aswellasremovingthegraphitefromthecompactsbypulsedcurrentstofreetheparticles.Subsequentremovalofthecarbonandsiliconcarbidelayersbyhightemperatureoxidationorbycarbochlorinationtoaccessthekernelsisassessed.Foractiniderecycling,gelationappearstobeasuitableprocessforfabricatingthekernels.ThispaperprovidesabriefoverviewsofthedevelopmentscurrentlyinprogressattheCEA.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
