Title of article
Preliminarythermal-hydraulicphenomenainvestigationduringtotalinstantaneousblockageaccidentforCEFROriginalResearchArticle
Author/Authors
Z.Wang، نويسنده , , X.W.Cao، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
10
From page
1550
To page
1559
Abstract
TheChineseExperimentalFastReactor(CEFR)isunderinstallationandcommissioningrightnow.Itisessentialtoinvestigatecoredisruptiveaccidents(CDAs)fortheevaluationofCEFRʹssafetycharacteristic.Aspart-Ipreliminaryinvestigation,accidentoftotalinstantaneousblockage(TIB)insinglesubassemblyscaleismodeledandanalyzed.Thedegradationscenariohasbeencalculatedbyafluid-dynamicsanalysiscodeforliquid–metalfastreactors(LMFRs).Forfurtherinvestigationofaccidentprocessandinfluencetotheneighboringbundles,sevensubassemblydomainisthensimulatedandcalculatedaspart-IIinvestigation.Totalinstantaneousblockageisassumedtooccurinthecentersubassemblyundernormaloperatingconditionsandconsequencestoneighboringassembliesarestudied.Theresultshowsthatthekeyevents,suchassodiumboiling,cladmelting,fuelparticlesrelocation,hexcanmelt-throughandmeltpropagationintoneighboringsixassembliessymmetricallyareadequatelysimulated.FromcomparisonanddiscussionoftheCEFRʹsresultswiththeSCARABEEtestsandSuperphenix(SPX1)-typereactorsimulation,itisconcludedthatallthekeyeventsappearinthesamesequencewhereasthepropagationislimitedinneighboringsixassemblies.ThediscrepancyisprobablyduetolessfuelinventoryandbettercoolingcapacityinCEFRsubassemblydesign.TIBcalculationshelptogiveabetterunderstandingandpredictionofhypotheticalaccidentscenarioinsubassemblyblockageaccidentsforCEFR.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2007
Journal title
Nuclear Engineering and Design Eslah
Record number
941416
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