Title of article
ReactivitycontrolsystemofthehightemperatureengineeringtestreactorOriginalResearchArticle
Author/Authors
YukioTachibana، نويسنده , , HiroakiSawahata، نويسنده , , TatsuoIyoku، نويسنده , , ToshioNakazawa، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
13
From page
89
To page
101
Abstract
Thereactivitycontrolsystemofthehightemperatureengineeringtestreactor(HTTR)consistsofacontrolrodsystemandareserveshutdownsystem.Duringnormaloperation,reactivityiscontrolledbythecontrolrodsystem,whichconsistsof32controlrods(16pairs)and16controlroddrivemechanismsexceptforthecasewhenthecentercontrolrodsareremovedtoperformanirradiationtest.Inanunlikelyeventthatthecontrolrodsfailtobeinserted,reserveshutdownsystemisprovidedtoinsertpelletsofneutron-absorbingmaterialintothecore.
Alloy800Hischosenforthemetallicpartsofthecontrolrods.Becausethemaximumtemperatureofthecontrolrodsreachesabout900°Catreactorscrams,structuraldesignguidelineanddesignmaterialdataonAlloy800Hareneededforthehightemperaturedesign.ThedesignguidelinefortheHTTRcontrolrodisbasedonASMECodeCaseN-47-21.Designmaterialdataisalsodeterminedandshowninthispaper.Observingtheguideline,temperatureandstressanalysiswereconducted;itcanbeconfirmedthatthetargetlifeofthecontrolrodsof5yearscanbeachieved.
Varioustestsconductedforthecontrolrodsystemandthereserveshutdownsystemarealsodescribed.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894807
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