ML17254A910
| ML17254A910 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 08/08/1984 |
| From: | KOBER R W ROCHESTER GAS & ELECTRIC CORP. |
| To: | PAULSON W A Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8408150108 | |
| Download: ML17254A910 (23) | |
Text
05000244REGULATORYINFORMATIONDISTRIBUTIONSYSH(RIDS)ACCESSIONNBR'800815(108DOC~DATE!84/08/08NOTARIZED:NODOCKET.0FACIL:50-240Robert)EmmetGinnaNuclea'rPlantiUnitliRochesterG05000240AUTH'BYNAMEAUTHORAFFILIATIONROBERtRel4eRochesterGas5ElectricCarp.'ECIP,NAMERECIPIENTAFFILIATIONPAULSONiWeA~OperatingReactorsBranch5.
SUBJECT:
Discussesencl,resultsofanalysisorReactorVesselSurveillanceCapsuleT~supporting821208applicationfor'mendtoLicenseDPR-18.Fluencedata8analysispresentedinYCAP10086verified,DISTRIBUTIONCODE:A001SCOPIESRECEIVED:LTRENCL/SIZE:TITLE:ORSubmittal:GeneralDistributionNOTES:NRR/DL/SEP1cy,OL+09/19/69RECIPIENTIDCODE/NAMENRRORB5BC01INTERNALSADHLFMBNRR/DE/MTEBNRR/DL/ORABNRR/DSI/RABRGN1COPIESLTTRENCL77011-0111RECIPIENTIDCODE/NAMEELD/HOSPNRR/DLDIRNHETBEGFE04COPIESLTTRENCL011l.EXTERNALSACRSNRCPDRNTISNOTES'902611111LPDRNSIC0305TOTALNUMBEROFCOPIESREQUIRED:LTTR27ENCL24 II'o;lC
tIIIIIIIIIgZZZZZS1am<Owl~*'IIIII"XWn'P::::ROCHESTERGASANDELECTRICCORPORATIONo89EASTAVENUE,ROCHESTER,N.K14649-0001ROGERW.KOBERVICEPRESIDENTELECTRIC&STEAMPRODUCTIONTELEPHONEAREACODETld546-2700August8,1984DirectorofNuclearReactorRegulationAttention:Mr.WalterA.Paulson,ActingChiefOperatingReactorsBranchNo.5U.S.NuclearRegulatoryCommissionWashington,D.C.20555
Subject:
ReactorVesselSurveillanceCapsuleTR.E.GinnaNuclearPowerPlantDocketNo.50-244
DearMr.Paulson:
OnDecember8,1982anApplicationforAmendmenttoOperatingLicensewassubmittedtotheNRCincorporatingtheresultsoftheanalysisofreactorvesselsurveillancecapsuleT.ThisanalysiswasperformedbyWestinghouseandpublishedasWCAP-10086.TheresultsoftheneutrontransportcalculationspresentedinWCAP-10086wereobtainedusingastatisticallybasedgeneric2-loopcorepowerdistributionandcross-sectionsemployingaPlexpansionofthescatteringmatrix.Inspiteofthegoodagreementbetweenmeasurementsandcalculationsatthesurveillancecapsulelocations,bothoftheseassumptionswerequestionedbytheNRCstaffintheirreviewofWCAP-10086.Inparticular,theconsiderationofplantspecificcorepowerdistributionsandtheuseofaPexpansionoftheneutronscatteringcross-sectionswererequested.Inordertoaddressthesetwoissues,neutrontransportcal-culationsinRIIgeometrywerecarriedoutusingtheDl@IdiscreteordinatescodeandtheSAILORcross-sectionlibrary.TheSAILORlibraryisa47group,ENDF-BIVbaseddatasetproducedspecificallyforlightwaterreactorapplications.AnisotropicneutronscatteringistreatedwithaPexpansionofthecross-3sections.Twosetsoftransportcalculationswerecarriedouttoprovidetheappropriatedatatoaddresstheissuesathand.Thefirst,asinglecomputationintheforwardmode,utilizedthePcross-sectionsinconjunctionwiththegeneric2-looppowerdistributiontoprovideadirectP3/Plcomparison.ThesecondsetofcalculationsconsistedofaserxesofsevenadjointanalysesrelatingpowerdistributionswithinthecoretothefastneutronfluxatfourlocationsonthepressurevesselaswellasatthegQQoP8408150108840808'DRADOCK05000244,PPDR e
ROCHESTERGASANDELECTRICCORP.DATEAugust8g1984Mr.WalterA.PaulsonSHEETNO.centerofeachsurveillancecapsule.TheseadjointimportancefunctionswerethenusedalongwithactualcoreburnupinformationtogenerateplantspecificfluencelevelsonacyclebycyclebasisfortheR.E.Ginnareactor.AP3scatteringcross-sectionexpansionwasusedforalloftheadjointanalyses.Thetransportmethodology,bothforwardandadjoint,usingtheSAILORcross-~potionlibraryhasbeenbenchmarkedagainsttheORNLPCAfacilityaswellasagainsttheWestinghousepowerreactorsurveillancecapsuledatabase.TheresultsofthesebenchmarkingstudieswillbeavailableinareporttobeissuedbyWestinghousebytheendof1984.However,asindicatedinourletterofOctober10,1983,thebenchmarkingstudiesindicatethattheuseofSAILORcross-sectionsandgenericdesignbasispowerdistributionsproducesfluxlevelsthattendtobeconservativebyabout7-22%.Thisconservatismistobeexpectedsincethegenericpowerdistributionsincludea2ostatisticaluncertaintybasedonplant-to-plantandcycle-to-cyclevariationsinperipheralpower.Itisunlikelythatasinglereactorwouldhaveapowerdistributionatthenominal+2olevelforalargenumberoffuelcycles.Whenplantspecificpowerdistributionsareusedwiththeadjointimportancefunctions,thebenchmarkingstudiesshowthat.fluencepredictionsarewithin+15%of'easuredvaluesatsur-veillancecapsulelocations.Further,thesepredictionsalsotendtobeingoodagreementwiththePcalculationsbasedonthegenericpowerdistribution.Thatls,the2ouncertaintyaddedtotheperipheralpowertendstooffsetdeficienciesinthePanaly-sisrelativetotheP3approach.1ResultsofAnalsisResultsoftheplantspecificfluenceevaluationsfortheR.E.GinnareactoraresummarizedjnTables1through7.Dataarepresentedforthe0<14.5,30,and44.5azimuthal00locationsatthepressurevesselinnerradiusinTables1through4,respectively.Correspondingdataapplicabletotgecenterofsurveillancecapsulespositionedat13,23,and33aregiveninTables5through7.Inallcases,plantspecificfastneutronfluxandfluencelevelsforeachoperatingcyclearelistedalongwithpredictionsusingaconstantfluxlevelbasedonPandPcross-sectionsandthegenericdesignbasiscorepowerdis(ri-butions.1InregardtothedatacontainedinTables1through7,theplantspecificcorepowerdistributionsusedforcycleslAthrough13werederivedfromactualburnupdata.Thecycle14powerdistributionwastakenfromthenucleardesigndatagiveninWCAP-10505.Aswiththepowerdistributiondata,thefullpowerirradiationtimesforcycleslAthrough13wereobtainedfromthecyclespecificburnupdata.Theirradiationtimeforcycle14wascomputedfromthedesignburnupof8800MWD/MTUspecifiedinWCAP-10505.Cycle14beganinSpring1984.
I ROCHESTERGASANDELECTRICCORP.DATEAugust8,1984Mr.WalterA.PaulsonSHEETNO.3Whereappropriate,measuredfluencevaluesfromsurveillancecapsulesV,R,andThavebeencomparedwithcalculatedvalues.Theseanalytical/experimentalcomparisonsareshowninTables5and6.Itshouldbenotedthatthemeasuredvaluesrepresenttheaveragefluencederivedfromallneutronsensorscontainedineachsurveillancecapsule.Further,inkeepingwiththeNRCrequest,thefluencelevelsarebasedonspectrumaveragecross-sectionsobtainedfromtheSAILORP3analysis.Therefore,measuredfluencevalueslistedinTables'and6differslightly(from1%to8%)fromthecorrespondingvaluesgiveninTable6-12ofWCAP-10086.Thesevariationsintheexperimentalvaluesarewellwithintheuncertaintyinthemeasurementsthemselves.ThefollowingconclusionscanbedrawnfromanexaminationofTables1through7.l.OverthelongtermtheplantspecificSAILORP3analysisisinexcellentagreementwiththeGAMBITPanalysis.Attheprojectedendofcycle14theP3/Plluenceratiosareasfollows:0vessel014.5vessel030vessel44.5vessel13capsule023capsule33capsule0SAILORP3/GAMBITPl0.981.011.041.140.920.950.922.Forsurveillancecapsules,V,R,andTthefluencepredictionsbasedonplantspecificSAILORP3analysisareinexcellentagreementwithdosimetrydata.Analytical/experimentalcomparisonsareasfollows:SAILORP3/MEASUREMENTCapsuleVCapsuleRCapsuleT0.990.950.923.AnalysisusingSAILORPcross-sectionsandthegenericdesignbasiscorepowerdistributionproducescon-3servativeresultsrelativetotheothertwoanalyticalapproachesaswellastothesurveillancecapsulemeasurements.
ROCHESTERGASANDELECTRICCORP.D4TEAugust8,1984Mr.,WalterA.PaulsonSHEETNO.4Basedontheseconclusions,thefluencedataandanalysispresentedbyWCAP-10086isverifiedandsupportsourapplicationofDecember8,1982.ertrulyyours,~ulRogerW.Kober
ROCHESTERGASANDELECTRICCORP.AUgUst8g1984Mr.WalterA.PaulsonSHEETNO.5
References:
2.Soltesz,R.G.,R.K.Disney,J.Jedruch,andS.L.Zeigler,"NuclearRocketShieldingMethods,Modification,UpdatingandInputDataPreparation-Volume5-Two-DimensionalDiscreteOrdinatesTransportTechnique",WANL-PR-(LL)-034,Vol.5,August1970.SAILORRSICDATALIBRARYCOLLECTIONDLC-76,"Coupled,Self-shielded,47Neutron,20Gamma-ray,P3,Cross-sectionLibraryforLightWaterReactors".3.McElroy,W.N.,"LWRPressureVesselSurveillanceDosimetryImprovementProgram:PCAExperimentsandBlindTest",NUREG/CR-1861,June1981.4~LetterJ.E.MaiertoD.M.Crutchfield,October10,1983.
Table1SD-RSA-84/2153FASTNEUTRONE>1.0MeVEXPOSURE.ATTHEPRESSUREVESSELINNERRADIUS-'O'ZIMUTHALANGLECycleNo.IrradiationTime(EFPS)CycleAvg.Fj,ux(n/cm~-sec)CUMULATIVEFLUENCE(n/cm2)PlantSpecificGeneric,GenericP3P31A18235678910111213142.09x102.38x100.71x102.88x102.17x101.84x102.42x102.35x102.20x102,62x102.51x101.83x102.30x102.32x102.27x103.88x104.16x104.22x103.62x103.60x104.63x103.93x103.74x104.40x104.13x103.97x103.86x104.53x103.11x103.05x108.101.802.103.143.934.785.736.617.588.669.651.041.141.211.28x101p18x1018x10x1018x10x1018x1018x1P18x1018x1018x10"x10x101p198.26x101.77x102,05x103.18x104.04x104.77x105.72x106.65x107.52x108.55x109.55x101.03x101.12x101.21x101.30x101.01x102.15x102.50x103.88x104.93x105.82x106.98x108.12x109.18x101.04x101.16x10191.25x10191.37x10191.48x101.59x1019P102Notes:1-9=3.95x10n/cm-sec.avg1p=4.82x10n/cm-sec.
'0np1 SD-RSA-84/2153Table2FASTNEUTRONE>1.0MeV.EXPOSUREATTHEPRESSUREVESSELINNERRADIUS-14.5'ZIMUTHALANGLECycleNo.IrradiationTime(EFPS)CycleAvg.Fj,ux(n/cm~-sec)PlantSpecificP3:-1Generic,GenericP1P3CUMULATIVEFLUENCE(n/cm2)1A1B2345678910111213142.09x102.38x100.71x102.88x102.17x101.84x102.42x102.35x102.20x102.62x102.51x101.83x102'0x102.32x102.27x102.34x102.48x102.57x102.22x102.38x102.81x102.47x102.48x102.67x102.59x102.46x102.39x10102.61x101.93x101.97x104.89x101.08x101.26x10181.90x102.42x102.94x103.53x104.12x104.70x105.38x106.00x106.44x107.04x107.49x107.94x104.97x101.06x101.23x101.92x102.44x102.87x103.45x10401x104.53x105.16x105.75x106.19x106.74x107.29x107.83x106.11x10,1.31x101.52x102.37x103.01x103.55x104.27x104.96x105.61x106.38x107.12x107.66x108.34x109.03x109.70x10Notes:1-5=238x10n/cm-sec.102102=2.95x10n/cm-sec.
~l SD-RSA-84/2153Table3FASTNEUTRONE>1.0MeVEXPOSUREATTHEPRESSUREVESSELINNERRADIUS-30AZIMUTHALANGLECycle'No.IrradiationTime(EFPS)CUMULATIVEFLUENCE(n/cm2)CycleAvg.F/ux'PlantSpecificGeneric,Generic(n/cm-sec)P3Pl-P3lA1B2345678910ll1213142.09x102.38x100.71x102.88x102.17x101.84x102;42x102.35x102.20x102.62x102.51x10l.83x102.30x102.32x102.27x10'.50x101.53x101.75x10.1.46x101.80x101.71x101.62x101.71x101.76x101.84x101.78x101~48x101.43x101.27x101.54x103.14x106.78x,108.02x101.22x101.61x101.93x102.32x102.72x103.11x10.3.59x104.04x104.31x10'4.63x104.92x105.27x103.24x106.93x108.03x101.,25x101.59x101.87x102.25x102.61x102.95x103.36x103.75x10403x104.39x104.74x105.09x10.-4.12x10.8.81x101.02x101.59x102.02x102.38x102.85x103.32x103.75x104.27x104.76x105.12x105.58x10603x106.48x10Notes:1-5=1.55x10n/cm-sec.102ayg10Pay=1.97x10n/cm-secP
'ill:4 SD-RSA-84/2153Table4FASTNEUTRONE>1.0MeVEXPOSUREATTHEPRESSUREVESSELINNERRADIUS-44.5'ZIHUTHAL'ANGLECUMULATIVE'FLUENCE(n/cm2)CycleNo.IrradiationCycleAvg.TimeFiux(EFPS)(n/cm~-sec)PlantSpecificP3GenericPlGenericP31A1B23456789101112.13142.09x102.38x100.71x102.88x102.17x101.84x102.42x102.35x102.20x102.62x102.51x101'.83x102.30x102.32x102.27x101.29x101.31x101.60x101.30x101~62x101.36x.l0-1.30x101.38x101.58x101.68x101.63x101.45'x101.39x101.05x101.54x102.70x10,5.81x.106.95x101.'07x101.42x101.67x101.99'102.31x102.66x103.10x103.51x103.77x104.09x104.34x104.69x102.65x5.68x'.58x1.02x1.30x1.53x1.84x2.14x2.42x2.75x3.07x3.30x3.59x3.84x4.13x]017101710"101810180181'0"10101810181081018018101810183.647.789.Ol1.401.782.102.522.933.313.774.214.524.92,5.335.72x10x1017x10x1018x10"x10x1018x1018x1018x1018x1018x10"x1018x101018Notes:1-9=1.27x10n/cm-sec.1022-p=1.74x10n/cm-sec.102 FSD-RSA-84/2153Table5FASTNEUTRONE>1.0MeYEXPOSUREATTHE13'URVEILLANCECAPSULE.CENTERCycleNo.IrradiationTime(EFPS)CUMULATIVEFLUENCE(n/cm)CycleAvg.GenericPjux'1ant'Specific'n/cm-sec.)PCapsule,PlMeasurementGenericP31A1B2345678910111213142.09x10238x1070.71x102.88x102.17x101.84x102.42x102.35x102.20x102.62x102.51x101.83x10230x102.32x10227x101.19x101.27x101.30x101.13x101.17x101~43x101.24x101.23x101.36x101.29x101.23x10~1.22x101.36x109.43x109.49x102.49x105.51x10186.44x106.53x109.69x10.1.02x101.22x101.49x101.79x102.08x102.37x102.71x103.02x103.24x103.56x103.78x104.00x10192.'785.956.891.071.361.611.932.242.532.883.2-1'.463.764.074.37x'1018x10181018x101019x10x10"x10191019x10x1010191019x10x103.07x106.57x107.61x101.18x101.50x101.77x10192.13x102.48x102.80x103.18x103.55x103.82x104.16x104.50x104.83x10Notes:1-P=1.33x10n/cm-sec.1022-5=1.47x10n/cm-sec.112
'V'le'~*~~IIpCII~f' FSD-RSA-84/2153Table6FASTNEUTRONE)1.0MeVEXPOSUREATTHE23'URVEILLANCECAPSULECENTERCUMULATIVEFLUENCE(n/cm)CycleNo.IrradiationCyc1eAyg.Time,F)ux(EFPS)'n/cm-sec.)P1antSpecificPCapsu1e3Measurement~:1GenericPlbeneric~2P3lA2.09x101B2.38x1020.71x1032.88x1042.17x1051.84x1062.42x1072.35x1082.20'x1092.62x10102.51x10ll1.83x10122.30x10132.32x10142.27x106.86x107.14x107.80x106.61x107.82x108.14x107.50x107.82x107.95x108.07x107.74x107.18x106.85x105.95x106.55x101.43x103.13x103.69x105.59x107.29x108.79x101.06x101.24x101.42x101.63x101.82x101.96x102.11x102.25x102.40x101.78x101.60x101.863;42x10,3.983.97x10>4.6118'.6.18x107;187.84x10,9.119.25x101.081.11x101.29191.29x101.501.46x101.701.66x101.931.85x102.151.99x102.322.17x-10'2.522.35x-102.732.52x102.93x1018.x1018x101018x1018x10x10"x10x101019x1019x10"1019x10"x10Notes:1-Hay766x10n/cmsec.1022pay=8.91x10n/cm-sec10 wcll~f~
D-RSA-84/2153Table7FASTNEUTRONE>1.0MeVEXPOSUREATTHE33'URVEILLANCECAPSULECENTERCUMULATIVEFLUENCE(n/cm2)Irradiation'yc1eAvg.Cyc1eTimeFluxNo.(EFPS)(n/cm~-sec)PlantSpecificP3GenericPlGenericP31A1B2345678910ll121314,'2.09x102.38x1070.71x102.88x102.17x101.84x102.42x102.35x102.20x102.62x102.51x101.83x102.30x102.32x102.27x106.066.147.245.957.406.756.456.867.227.617.396.035.785.006.381010x101010x10x10"x1010x10"x10101010x10"x10x101010x1010x101.27x102.73x103.24x104.96x106,.56x107.80x10937x101.10x101.26x101.46x101.64x101.75x101.88x102.00x102.14x101.48x103.16x103.66x105.69x107.22x108.52x101.02x101.19x101.34x101.53x101.71x101.84x102.00x10192.16x10192.32x10191.68x10183.60x10184.18x10186.50x108.25x109.73x101.I7x101.36x101.53x101.75x101.95x102.10x102.28x102.47x10,2.65x10Notes:1-9=7.08x,10'n/cm-sec.1021022-9=8.06x10n/cm-sec.avg 0