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
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
Journal title :
Nuclear Engineering and Design Eslah
