Title of article
DevelopmentofSIRIUS-Nfacilitywithsimulatedvoid-reactivityfeedbacktoinvestigateregionalandcore-widestabilityofnaturalcirculationBWRsOriginalResearchArticle
Author/Authors
M.Furuya، نويسنده , , F.Inada، نويسنده , , T.H.J.J.vanderHagen، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
15
From page
1635
To page
1649
Abstract
TheSIRIUS-Nfacilitywasdesignedandconstructedforhighlyaccuratesimulationofcore-wideandregionalinstabilitiesofanaturalcirculationBWR.Areal-timesimulationwasperformedinthedigitalcontrollerformodalpointkineticsofreactorneutronicsandfuel-rodconductiononthebasisofmeasuredvoidfractionsinreactorcoresectionsofthethermal-hydraulicloop.Stabilityexperimentswereconductedforawiderangeofthermal-hydraulicconditions,powerdistributions,andfuelrodtimeconstants,includingthenominaloperatingconditionsofatypicalnaturalcirculationBWR.Theresultsshowthatthereisasufficientlywidestabilitymarginundernominaloperatingconditions,evenwhenvoid-reactivityfeedbackistakenintoaccount.Thestabilityexperimentswereextendedtoincludeahypotheticalparameterrange(double-voidreactivitycoefficientandinletcoresubcoolingincreasedbyafactorof3.6)inordertoidentifyinstabilityphenomena.TheregionalinstabilitywasclearlydemonstratedwiththeSIRIUS-Nfacility,whenthefuelrodtimeconstantmatchestheoscillationperiodofdensitywaveoscillations.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2005
Journal title
Nuclear Engineering and Design Eslah
Record number
894946
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