• Title of article

    StrengthevaluationofasteamdistributiondeviceintheIgnalinaNPPaccidentlocalisationsystemOriginalResearchArticle

  • Author/Authors

    GintautasDundulis، نويسنده , , RenatasKaralevicius، نويسنده , , SigitasRimkevicius، نويسنده , , RonaldF.Kulak، نويسنده , , AlgirdasH.Marchertas، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2006
  • Pages
    10
  • From page
    201
  • To page
    210
  • Abstract
    TheIgnalinaNPPhasapressuresuppressiontypeofconfinement,whichisreferredtoastheaccidentlocalizationsystem(ALS).TheALSpreventsthereleaseoftheradioactivematerialfromtheNPPtotheenvironmentduringaloss-of-coolantaccident(LOCA).TenwaterpoolsarelocatedinthetwoALStowers(fivepoolsineachtower),whichseparatethedrywellfromthewetwell.Thesewaterpoolscondensetheaccident-generatedsteamandpreventhighoverpressuresinthecompartments. Thesteamdistributiondevice(SDD),withtheverticalventpipes(nozzles)thatareinsertedunderthewaterofthecondensingpools,connectsthedrywellandthewetwell.Incaseofanaccident,thesecomponentsmustbecapableofwithstandingthedynamicloadsgeneratedbyaLOCAforsuccessfulpressuresuppressionfunction. ThispaperpresentsthetransientanalysisoftheSDDandtheirconnectionstotheverticalsteamcorridorsfollowingaLOCA.Athermo-hydraulicanalysisoftheSDDwasperformedusingthestate-of-the-artCOCOSYScodetodeterminepressureandtemperaturehistoriesresultingfromaLOCA.ThefiniteelementcodeNEPTUNEwasusedtoevaluatethestructuralintegrityoftheSDDanditssupportingreinforcedconcretewall.Resultsshowthat,althoughportionsoftheSDDundergoplasticresponseandtheoutsidesurfaceoftheverticalsteamcorridorreinforcedconcretewallcracks,thestructuralintegrityoftheSDDandwallaremaintainedduringaLOCA.
  • Journal title
    Nuclear Engineering and Design Eslah
  • Serial Year
    2006
  • Journal title
    Nuclear Engineering and Design Eslah
  • Record number

    895984

    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=895984