ML17309A540

Summary of 940324 Public Meeting W/Util to Discuss Steam Generator Replacement & Fuel Reload Changes for 1996.Agenda Encl

ML17309A540
Person / Time
Site:	Ginna
Issue date:	04/13/1994
From:	MECREDY R C ROCHESTER GAS & ELECTRIC CORP.
To:	JOHNSON A R NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation
References
NUDOCS 9404190372
Download: ML17309A540 (56)

Text

ACCELERATEDDITRIBUTIONDEMONSI'tt"i~CyTIONSYSTEMREGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)ACCESSIONNBR:9404190372DOC.DATE:94/04/13NOTARIZED:NOFACIL:50-244RobertEmmetGinnaNuclearPlant,Unit1,RochesterG,AUTH.NAMEAUTHORAFFILIATIONMECREDY,R.C.RochesterGas&ElectricCorp.RECIP.NAMERECIPIENTAFFILIATIONJOHNSON,A.R.ProjectDirectorateI-3

SUBJECT:

Summaryof940324publicmeetingw/utiltodiscussSteamgeneratorreplacement6fuelreloadchangesfor1996.Agendaencl.DISTRIBUTIONCODE:A001DCOPIESRECEIVED:LTRENCLSIZE:TITLE:ORSubmittal:GeneralDistributionDOCKET05000244RDNOTES:LicenseExpdateinaccordancewith10CFR2,2.109(9/19/72)./05000244ARECIPIENTIDCODE/NAMEPD1-3LAJOHNSON,AINTERNAL:NRR/DE/EELBNRR/DRCH/HICBNRR/DSSA/SPLBNUDOCS-ABSTRACTOGC/HDS1EXTERNAL:NRCPDRCOPIESLTTRENCL1122111111111011RECIPIENTIDCODE/NAMEPD1-3PDNRR/DORS/OTSBNRR/DRPWNRR/DSSA/SRXBOC/~LCBILE01NSICCOPIESLTTRENCL11111111101111DDDNOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISTSFORDOCUMENTSYOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:LTTR16ENCL14DDS, tlllilSllillllISIZIIIIIIIIIl>V~@ROCHESTERGASANDELECTRICCORPORATIONoe9EASTAVENUE,ROCHESTERN.Y.14649-0001ROBERTCMECREDYVicePresidentGlnnaNuclearProductionTELEPHONEAstEAcooETle546-2700April13,1994U.S.NuclearRegulatoryCommissionDocumentControlDeskAttn:AllenR.JohnsonProjectDirectorateI-3Washington,D.C.20555

Subject:

PublicMeetingonMarch24,1994todiscussSteamGeneratorReplacementandFuelReloadChangesfor1996R.E.GinnaNuclearPowerPlantDocketNo.50-244

DearMr.Johnson:

OnMarch24,1994apublicmeetingwasheldwithRochesterGasandElectricandmembersoftheNRCStafftoupdatethestaffontheevaluationofthesteamgeneratorreplacementandfuelreloadchangesatGinnaStation,currentlyscheduledforthespringof1996.Thisletterprovidesasummaryofthemeeting.J.Cutchin(NRC/OGC)beganthemeetingwithadiscussionoftheuseof10CFR50.59forsteamgeneratorreplacement.ItwasnotedthattheNRCStaffdeterminedthat10CFR50.59couldnotbeusedforreplacementatV.C.SummerbecauseseveralchangestotheTechnicalSpecificationswereintimatelyconnectedwiththeinstallationofthenewlargersteamgenerators.Mr.Cutchinstatedthatthisdidnotsignalachangeinstaffphilosophy.Underthetermsof10CFR50.59,evenifareplacementdoesnotinvolveanunreviewedsafetyquestion,priorNRCapprovalisrequiredifitinvolvesachangeintheTechnicalSpecifications.Mr.CutchinindicatedthatiftheplantcannotbeoperatedfollowingachangewithoutcertainTechnicalSpecificationamendments,thenpriorapprovalwouldberequired.However,areplacementprojectcouldbebrokendownintoseveraldiscreteplantchanges(ashasbeendoneatotherplants),withtheresultthatpriorapprovalviatheTechnicalSpecificationamendmentprocesswouldonlyberequiredforcertainspecificchanges,nottheentireproject.ThestaffobservedthatGinnaappearstobedifferentfromtheV.C.Summercaseinthatthenewsteamgeneratorswillbephysicallysimilartotheexistingones,andthatnonecessaryTechnicalSpecificationamendmentshavebeenidentified.RG&EpresentedthecurrentstatusoftheSteamGeneratorReplacementProject.RG&Enotedthattheprojectwouldbebrokendownintotwodistinctparts:thecomponentdesign;andthe9404i90372Tl404i3PDR',iADOCJC05000244'=.PDRoot) 4tIlI(kCJu~~~0, installationactivities.Therearecurrentlynointentionstofurtherbreakdownthecomponentdesignaspectoftheproject.Theinstallationactivityaspect,however,wouldbefurtherdividedintodiscreteworkactivities,notablythecontainmentopenings,riggingandhandlingofheavyloads,pipecuttingandrestoration,insulationofthegenerator,andstorageoftheoldsteamgenerators.Currentevaluationsindicatethatallchangesassociatedwiththesteamgeneratorreplacementcanbeaccomplishedwithoutpriorstaffapproval.Aschedulewaspresentedindicatingwhenfinalsafetyevaluationsfortheseitemswouldbeavailable.Thesewillbeprovidedtothestaffforinformationonly.RG&Epresentedacomparisonoftheexistingandreplacementsteamgenerators.Thestaffnotedthatthegeneratorsappearverysimilar.RG&Ediscussedthepreliminarysafetyevaluationofthereplacementsteamgeneratordesign,andthedetailedthermalhydraulicmodelsoftheprimarysystemandcontainmentbeingdevelopedtoreanalyzesomeoftheUFSARtransients.Thestaffquestionedtheneedfordetailedmodels,giventhesimilaritiesofthegenerators.RG&Epresentedanoverviewofchangesassociatedwiththe1996FuelReload.Ginnawilltransitionfromannualfuelcyclestoeighteenmonthfuelcycleswiththe1996reload,andthereforetherewouldbesomeTechnicalSpecificationamendmentsassociatedwiththereload.Ascheduleforthesesubmittalswaspresented.RG&Epresentedanoverviewofsomeofthedesignfeaturesincorporatedinthereplacementsteamgeneratortocorrectdeficienciesidentifiedinthecurrentgenerators.Thestaffobservedthattheseimprovementsseemedprudent,howevertheycautionedthatcloseattentionshouldbepaidtothematerialsusedforweldtransitions.RG&Eoutlinedtheinten'dedmethodstobeusedforthestructuralevaluationoftherestoredreactorcoolantsystem.Specifically,RG&Eintendstoincludeexplicitmodelingofwallsandsupportswhenanalyzingtherestoredsystem.Thestaffcautionedthatwhilethisappearsacceptable,closeattentionshouldbegiventothistoensurethatconsistentandconservativemodelingofthewall-RCSinterfacesaremade,particularlywithrespecttodampingfactors.RG&Ealsopresentedinformationonadisplacementmodelofthereactorcoolantsystemdevelopedtohelppredictpipemovementduringcuttingactivities.Thestaffwasquestionedastotheappropriatenessofusingtemporarysupportsorrestraints,butitwasagreedthatfurtherdetailwouldbeneededbeforearesponsecouldbeprovided.RG&Epresentedtheeffortstodatetomodelthecontainmenttoanalyzetheeffectsofthetemporaryconstructionopeningsonthestructurebothduringconstructionandafterrestorationofthecontainment.Thestaffnotedthatthemodelappearedtobeof

sufficientdetailtoanalyzealleffectsoftheopenings./CopiesoftheoverheadspresentedbyRG&Eatthismeetingareattached.RG&Eappreciatesthevaluableinputandcooperationthatwasprovidedbythestaffatthismeeting.Verytrulyyours,AttachmentBJF/327RobertC.Mecedyxc:Mr.AllenR.Johnson(MailStop14D1)ProjectDirectorateI-3Washington,D.C.20555U.S.NuclearRegulatoryCommissionRegionI475AllendaleRoadKingofPrussia,PA19406USNRCGinnaSeniorResidentInspector 00~efI GinnaStationBWI+BwltBeep(RochesterGasandElectricGINNASTATIONSTE<AMGL<NERATORIMPLACEMENTNRCSTATUSUPDATEMARCH241994AGENDA

1.0INTRODUCTION

2.0SAFETYANDLICENSING2.1PRELIMINARYSAFETYEVALUATION2.2RELAPMODEL2.3CONTEMPTMODEL24FUELCONTRACTGEORGE<WROBE<LBRIANFLYNNBOBELIASZ3.0STATUS/STRESSANALYSISUPDATEJOHNSMITHBE<RNIECARRICK3.13.23.33.43.5EQUIPMENT/INSTALLATIONSTATUSMETHODOLOGYANDAPPROACI-IACCEPTANCECRITERIASTATUSANDSCI-IEDULEDISPLACEMENTMODEL4.0S/GDE<SIGNFEATURE<S5.0CONTAINMENTOPE<,NINGMODEL6.0SUBMITTALSCHEDULE7.0RE<PLACEML<'NTVIDE<0JOHNSMITHJOHNSMITHGEORGEWROBELJOHNSMITH94p419p37224March94 C

R.E.GinnaStcamGcncratorRcplaccmcntComparisonofExistingvs.ProposedGinnaStationstvlIrecitte(RRochesterGasandE/ectricManuf./ModelPrimarySidePrcssureDrops(0%plug)NozzleinlettoNozzleoutletExistingW/44(fccdring)33.5psiReplacementBWI(fccdring)31.1psiPrimarySideFlowforabovedp's34.6E<06lbm/hr34.9E<06lbm/hIIeatTransferAreas0%Plugging15%Plugging20%PluggingTubingOutsideDiameterAvg.WallThickness~~NumberofTubesMaterial44430sq.ft.37765sq.ft.0.875in0.050in3260Inconcl600,MA54000sq.ft.43200sq.ft.'.750in0.0431in4765Alloy690,TTVolumes,primarysideInletPlenumTubesOutletPlenum133cu.ft.654.5cu.ft.133cu.ft.132.5cu.ft.710cu.ft.132.5cu.ft.SecondaryVolume,Total45SOcu.ft.4513cu.ft.SecondaryWaterMass,nominal100%(1520MWt)0%(HZP)SecondaryMassFlow,100%StcamLincOrificeSizeInitialStcamPressure,100%S4,500Ibm11S300Ibm3.3E06lbm/hr4.37sq.ft.800psiaS6,200lbm115,100Ibm3.3E06lbm/hr1.4sq.ft.875psia24March94

STEAMOUTLETTOTURBINEGENERATORDEMISTERSSECONDARYMOISTURESEPARATORSECONDARYMANWAYORFICERINGSUPPERSHELLFEEDWATERRINGSWIRLVANEPRIMARYMOISTURESEPARATORFEEDWATERINLETTUBEBUNDLEANTIVIBRATIONBARSDOWNCOMERFLOWRESISTANCEPLATELOWERSHELLWRAPPERSECQMDARYMAMOMOLETUBESUPPORTPIATESBLOWOOWNLINETUBESHEETTUBELANEBLOCKPRIMARYMANWAYPRIMARYCOOIANTOUTLETPRIMARYCOOIANTINLETQKSERIES44STEAMGENERATORNOT70SCALE922$

Babcock8WitchCanadaAdvancedSeries'PNR,Rtep/acementSteamGeneratorSteamnozzleHighelliciencymoistureseparatorsBundleinspectionaccessductFeedwalefinlelFeedwaterheaderStainlesssteellnttice4sarlubesupportgirdPVF&).Tubebundle,IHandholesIntegralverticalsupponPrimarynozzlePrimary.sidemanwayDesignObjectives~Aetrsneeierlnrnrtpoints.outslde~snaoversnper4nnsnceconsisleni>>ithexntrngsleemgenerelonsndreecrorvertuernenrs~oesrgnlormagnumretrebonyinopersbon~Act>>evehighcirculationratios~Orrvnerecrevicesondpoiernislrlovvtegnsuon~usenorvngraharesuppons~lstntstlnpressweboundsryIntegri;ydunngseismicandbuntpipeevents~Stnrmtxeluberesiauslsoess~Avoidno>>enduredvarrsnon~Assurehighsteamrturrrty(rbavo99.7$rr)under~aoperatingconCNttons~preventlooseportsspecttonondnleinlenslrce GinnaStationBechtelLsmpsonGinnaAccidentAnalysisRochesterGasandE/ectricEVALUATEANALYZEXXXXXXXXXXXXXXXXXXXX15.1IncreaseinI-IeatRemovalbytheSecondarySystem15.1.1DecreaseinFeedwaterTemperature15.1.2IncreaseinFcedwaterFlow15.1.3ExcessiveLoadIncreaseIncident15.1.4InadvertentOpeningofaSGRelief/SafetyValve15.1.5SteamLineBreaksInsideandOutsideContainment15.1.6SGReliefValveandFeedwaterControlValveFailure15.2DecreaseinHeatRemovalbytheSecondarySystem15.2.1SteamPressureRegulatorMalfunction15.2.2LossofExternalElectricalLoad15.2.3TurbineTrip15.2.4LossofCondenserVacuum15.2.5LossofOffsitePowertotheStationAuxiliaries15.2.6LossofNormalFeedwaterFlow15.2.7FeedwaterSystemPipeBreaks15.3DecreaseinRCSFlowrate15.3.1FlowCoastdownAccidents15.3.2LockedRotorAccident15.4ReactivityandPowerDistributionAnomaities15.4.1UncontrolledRCCAWithdrawalfromSubcritical15.4.2UncontrolledRCCAWithdrawalatPower15.4.3StartupofanInactiveReactorCoolantLoop15.4.4CVCSMalfunction15.4.5RCCAEjection15.4.6RCCADrop15.5IncreaseinRCSInventory15.6DecreaseinRCSInventory15.6.1InadvertentOpeningofaPressurizerSafetyorReliefValve15.6.2RadiologicalConsequencesofSmallLinesCarryingRCOutsideContainment15.6.3SteamGeneratorTubeRupture15.6.4PrimarySystemPipeRuptures15.6.4.1SBLOCA15.6.4.2LBLOCA15.7RadiologicalReleaseFromaSubsystemorComponent15.7.1RadiologicalGasWasteSystemFailure15.7.2RadiologicalLiquidWasteSystemFailure15.7.3FuelHandlingAccidents15.8AnticipatedTransientsWithoutScramChapter6,Chapter56.2.1.2ContainmentIntegrity5.2.2LowTemperatureOverpressurization24March94 GinnaStationSW<BechtelRochesterGasandElectricSTEAMGENERATORREPLACEMENT:TRANSIENTANALYSISSTATUSACTIVITYCOMPLETIONMODELSRELAPCONTEMPTCOMPLETECOMPLETEJALYZECONTAINMENTANALYZEACCIDENTS10CFR50.59EVALUATION5/949/9412/9424March94

A>>0BVII+GinnaStationBVII1Bechtel2)RochesterGasandEiectricGINNARELAP5MODELSlfAM$)>.fM)LV4)I)S)EAMLINEI)CC0I955960~965~9>00~1bOI0~>4>401>0490I>bI>0645~N~60455I504904>0N4Noeeb~40>44>40~70660>64>60~F5MlAI"M>5MI924I)OhkC'740'I02011))011>)0411)OL>1)06IS)0)1))07>1)0110ll12I)I~Ib140>OIOL06010>-0111)OIOI,06>)701>i)oe>1104>>)061>>'>>)10>>))+MIMI))~1I>>5MIIAI:4~~IM674I)042401Ot.01e)io>4)).06ON.06~))06~))074)).atIS)01I))0101-oe-04.060702276-01*10~11~ltl).I~~Id~I~-OIIOe4)S014))04I))06~7)06I))07~))074)SOI179171~002tltte1)0120612202)0l)dI)4~))1C3-110IodIOO7002nd21021)2147)dIN1641>4IIO2402>6t>o2462)I160)40pQM>>)>M>ten260I~L164lbd140f~)64tdI264tdo24lvlARCH94 ANOIGinnaSlatlortBechtelljldlp$0hRochesterGasandElectricGINNAREACTORVESSELANDCOREMODELhotlegnozzle102350106DoC9302364360leakagepathupperplenum354upperplenum368hotlegnozzle351103107348326338349100104coldlegnozzle3223343243361101coldlegnozzle32033231831632831237524MAI<CII94310380 GinnaStationBIVI1Bechtel828mOSOnCDCDRochesterGasandElectricMAINFEEDWATERAAFWWSIOECONTAlNMENT801MFWPumpA02806808810820--424!-822i-4~824~83Di81818121814816SGA625888~~82901MFWPumpB906908910918+-~~~22L~924~30931;933934920---iw==-SGB725AFWMAINFEEDWATER824ivlAl<Cfl94GinnaMFWRELAP5NodeDiagram GinnaStationBlvllBecttt1996FUELRELOAD~NEWWESTINGHOUSEFUELFABRICATIONCONTRACT~INSERTVANTAGE-5FUELVS.OFAFUELF.INCREASEFROM1.66TO1.75FqINCREASEFROM2.32TO2.50~CYCLELENGTHINCREASEFROMANNUALTO18MONTHS~INCREASESFPENRICHMENTFROM4.25W/0TO5.0W/0POSSIBLET,,DECREASEUPTO15'F24MARCH94 kl GinnaSIalionBIVIIBeChtelRochesterGasandElectricFVKIASSKMBIYCHARACTERISTICSCOMPARISONOFCURRENTVS.1996CHARACTERISTICTYPEFUELRODO.D.FUELCLADDINGMATERIALACTIVEFUELLENGTHBLANKETREGION/ENRICHMENTCENTERREGIONENRICI-IMENTBOTTOMNOZZLESCURRENT14X14OFA,0.40INZ;4141.4IN6IN/NAT.UPTO4.25W/0DFBN1996VANTAGE50.40INZ,-4141.4IN6IN/2.6W/0UPTO5.0W/0DFBNGRIDS2TOPANDBOTTOM7MIDINTERMEDIATEFLOWMIXINGDISCHARGEBURNUPSINCONEL-718Z,-4NONELOW40sGWD/MTU'NCONEL-718Z,-4NONEMID50sGWD/MTU24MARCIA94 GinnaStationBechtelRochesterGasandElectricGinnaAccidentAnalysisValveOutsideContainment15.1IncreaseinHeatRemovalbytheSecondarySystem15.1.1DecreaseinFeedwaterTemperature15.1.2IncreaseinFeedwaterFlow15.1.3ExcessiveLoadIncreaseIncident15.1.4InadvertentOpeningofaSGRelief/SafetyValve15.1.5SteamLineBreaksInsideandOutsideContainment15.1.6SGReliefValveandFeedwaterControlValveFailure15.2DecreaseinHeatRemovalbytheSecondarySystem15.2.1SteamPressureRegulatorMalfunction15.2.2LossofExternalElectricalLoad15.2.3TurbineTrip15.2.4LossofCondenserVacuum15.2.5LossofOffsitePowertotheStationAuxiliaries15.2.6LossofNormalFeedwaterFlow15.2.7FeedwaterSystemPipeBreaks15.3DecreaseinRCSFlowrate15.3.1FlowCoastdownAccidents15.3.2LockedRotorAccident15.4ReactivityandPowerDistributionAnomaities15.4.1UncontrolledRCCAWithdrawalfromSubcritical15.4.2UncontrolledRCCAWithdrawalatPower15.4.3StartupofanInactiveReactorCoolantLoop15.4.4CVCSMalfunction15.4.5RCCAEjection15.4.6RCCADrop15.5IncreaseinRCSInventory15.6DecreaseinRCSInventory15.6.1InadvertentOpeningofaPressurizerSafetyorRelief15.6.2RadiologicalConsequencesofSmallLinesCarryingRC15.6.3SteamGeneratorTubeRupture15.6.4PrimarySystemPipeRuptures15.6.4.1SBLOCA15.6.4.2LBLOCA15.7RadiologicalReleaseFromaSubsystemorComponent15.7.1RadiologicalGasWasteSystemFailure15.7.2RadiologicalLiquidWasteSystemFailure15.7.3FuelHandlingAccidents15.8AnticipatedTransientsWithoutScram6.2.1.2ContainmentIntegrity5.2.2LowTemperatureOverpressurization24March94 I1 GinnaStalionBWI(ge~ht+npsanANALYSESTHATWILLBKUPDATEDWITHRELOAD15.1.1DECREASEINFEEDWATERTEMPERATURE15.1.2INCREASEINFEEDWATERFLOW15.1.3EXCESSIVELOADINCREASEINCIDENT15.1.4INADVERTENTOPENINGOFASGRV15.1.5SLB(BOTHCOREANDM&E)I15.1.6SGRVEcFWCONTROLVALVEFAILURE15.2.7LOSSOFEXTERNALLOAD/TURBINETRIP15.3.1'LOWCOASTDOWNACCIDENTS15.6.3SGTUBERUPTURE15.6.4.1SBLOCA15.6.4.2LBLOCA15.7.3FUELHANDLINGACCIDENTS5.2.2I.OWTEMP.OVERPRESSURIZATION(BWNT)24MARCH94 GinnaStationBechtelRochesterGasandElectricSCHEDULEDATAPREPARATION4/I/94FINALIZEINPUTDATA6/1/94STARTANALYSISDRAFTREPORTFINALREPORT6/1/946/1/957/1/95SUBMITREPORTTONRC8/1/95CYCLE26STARTVP5/1/9624MARCH94 BIYI)Beef)te/EUIPMENTSTATUS~FABRICATIONBYBOWINTERNATIONAL~ALLMAJORCOMPONENTSORDEREDMAJORFORGINGS,JAPANSTEELWORKSTUBING,VALINOXSHELLPLATE,CREUSOT-LOIRE~PRIMARYHEADSCLADDINGCOMPLETENOZZLEDAMRINGSBEINGINSTALLEDPRIMARYNOZZLEBUTTERINGUNDERWAY~TUBESHEETSCLADDINGCOMPLETEREADYFORGUNDRILLINGOFTUBEHOLES~SECONDARYSHELLSLOWERSHELLCONESWELDEDHANDHOLESANDINSPECTIONPORTSBEINGINSTALLED~TRANSITIONCONKFORGINGS-HANDHOLEOPENINGSCUT24March94 GinnaStationswIsttBechtelEUIPNIENTSTATUSCONT'0TUmNGPREPRODUCTIONUNDERWAYATVALINOXPREPRODUCTIONCOMPLETEJUNE1994PRODUCTIONMATERIALBEINGMELTEDATINCOPRODUCTIONCOMPLETEDECEMBER199424March94 GinnaStationBltII+BlYI)BechtelLpmpsonlINSTALLATIONSTATUS~INSTALLATIONCONTRACTORBKCHTKLPOWERDETAILEDDESIGNINSTALLATION~DETAILEDENGINEERING1994~PROCEDUREPREPARATION1995~ACTIVITIESTODATEPROJECTINTERFACEPROCEDURESVIDEOPREPARATIONCONTAINMENTOPENINGSTUDYQAPROCEDUREMANUALPROJECTENGINEERINGPROCEDURESMANUALINSUI.ATIONSTUDYDRAFTDESIGNCRITERIAFORCONTAINMENTSTRUCTURALWORK~MAJORSUBCONTRACTORSPOWERCUTTINGLAMPSONPSI24March94 GinnaStationBlvltBechtglRochesterGasandElectricR.K.GINNASTEAMGENERATORREPIACKMKNT\STRVCTVRALEVALUATIONOFEFFECTEDCOMPONENTS&SYSTEMS=24March94 GinnaStationBlYIlBeep(REACTORCOOLANTSYSTEMLATEtSTANALYSIS~1988SNUBBERREPLACEMENT~IMPLEMENTLBB/HELBCRITERIA~RIGIDSTRUTSS/GCOLDSPRINGACCEPTANCECRITERIA~PIPINGQEQUIPMENTOSUPPORTSUSASFANSIB31.1ASMKSECTIONIIIASMESECTIONIII24March94 AHDGinnaStationBechtelIjlfhp50hCDRochesterGasandElectric38HAINS1EAMLINESTEAMGENERnlOR)A38HAiNStEAMLINES)EAMCENERA1ORREACIORCOOLAN1PUMP)B14FEEOWATERLINE14FEEOWATERLINEUPPERSUPPORTSANOSNUBBERSl'TYP.)COLOLEGHOTLEGNOTLEGINTERHEOIATESUPPORTSlTYP.)CROSSOYERLEGCOLO'LEGLOWERSUPPORTSlTYP.)REACTORCOOLANTPUHPlAREACtORvESSELVIEWOFNSSSiTEMFORGINNANUCLEARSTATION GinnaStalionBechtelSTRUCTURALMODELSBWSPAN-STRUCTURALCODE3MODELSBENCHMARKENHANCEDW/OLDS/G~ENHANCEDW/NKWS/GDEMONSTRATEUNDERSTANDINGOFCURRENTBASISANDLOOPBEHAVIORGENERATEDETAILEDLOADING/STRESSINFOFORCURRENTS/GDISTINGUISHEFFECTSOFMODELENHANCEMENTSANDS/GDIFFKRKNCKCONFIRM/CALCULATELOADS,STRESSES,ANDTHERMALMOTIONSFORNKWS/G24March94 GinnaStationBilltBechtelRochesterGasandElectricLOADINGCONDITIONSBENCHMARKDEADWEIGHT0OBKENHANCEDMODELW/OLDS/G~DEADWEIGHT0OBEENHANCEDMODELW/NEWS/GOeDEADWErCHT~THERMALOBK/SSK~LOCA/HKLBQCOLDSHUTDOWNEARTHQUAKE24March94 GinnaStationBechtelIACCEPTANCECRITERIA1.COMPARETOCURRENTANALYSISNKWLOADS<OLDLOADS=OK2.COMPARETOALLOWABLKS0pnnwGIEQVIPNtKNTAUXLINKS-B31.1ALLOWABLKS-CURRENTLBBCRITERIA-NOZZLKSLOADS-SUPPORTLOADS-<'/,6"ADDEDDEFLECTION24March94 c!1~4w~J~~

GinnaStalionBechtelLanpsenRochesterGasendElectricMODELENHANCEMENTSiNKWCONSISTENTMASSMODELINGEXPLICITMODELINGOFSUPPORTSFREQUENCYCUTOFF30HzN-411DAMPINGOLDLUMPEDMASSSTIFFNESSMATRIX100Hz2%/4%DAMPINGSINGLEANCHORPt./SINGLEMULTIPLEANCHORSPECTRAPts./ENVELOPESPECTRACLOSELYSPACEDMODESVIA10Z.RULEEXPLICITACPANALYSISFORHKLBEPSILONRULEFACTORONDISCHARGECOEFFICIENT24March94 i)sGinnaStationBwltBechtellampsanLOADINGMETHODSSEISMICDWhTHKRMALSTATICOBEYSSERESPONSESPECTRA~3AXISEXCITATION~CURRENTDESIGNSEISMICSPECTRAMULTIPLECASKSFORSUPPORTS0MODESCOMBINEDSRSSacr.osKz,vspAcKDmoDEsvw.iozRUr.ETIMEHISTORIESFORARSsONS/GSHELL24March94 1'0~+~~4~e&8~

~~.GinnaStalionBlVI+BechtelRochesterGnsandE/eclricLOADINGMETHODSLOCALHK'LBCRAFTdk,COMPAR2CODESILINEARTIMEHISTORYANAI,YSISPIPINGLINTKRNALSTRANSIENTLOADS0M/ERELEASEFORACPANALYSIS~ACPONCOMPONENTS~CONFIRMSUPPORTSACTIVERCS:LEAK-BEFORE-BREAK-RHRZZNESURGELINKSILINKIIELB:TERMINALLOCATIONSONLYMAINSTEAMFEEDWATERBLOWDOWNRECIRCNOZZLE24March94 "f~RL GinnaStationewtIBechtelRochesterGasandElectricDKADWKIGIITTHERMALSEISMICLOCAHKLBCVRRKNTEXPECTATION-INCREASE(<5%)-SAME-DECREASE'INCREASE(<15%)'DECREASE1.MODELENHANCEMENTS=MOREMARGININCREASEDWKIGIIT=LESSMARGINOVERALLEFFECT-EXPECTMOREMARGIN2.BLOWDOWNINITIALCONDITIONSWILLUSK15'FREDUCEDTAvE24March94 tI4 GinnaStationBwltgech~e/RochesterGasandElectricSTATUSdkSCHEDULEMODELSNKAmWGCOMPLETIONSTRUCTURALBENCHMAKKINGSTARTEDSEISMICANAIVSIS:COMPLETE7/94BLOWDOWNANALYSES:COMPLETE10/94LOADCOMBINATIONdt.COMPARISONSCOMPLETE1/9524March94 DISPLACEMENTMODELPURPOSERG&KTECHNICALOVERSIGHTOFRCSPIPINGCUT&WELDCONCERNSCOLDSPRING(BEFORE7AFTER)WELDFIT-UPRCSTEMPORARYSUPPORTDESIGNVIODELANSYSFINITEELEMENTMODELOFRCSPLATE&BEAMELEMENTSMODELRCSPIPEASSHELLS3400ELEMENTS/3400NODESONELOOPMODELSTATUSMODELNEARCOMPLETION24March94 GinnaStationBlVI)Etetf)t~]LpnesonRochesterGasandElectric t~CJi.II GinnaSialionSWI-,BechtellpmpeanaS/GDESIGNFEATURESPROBIKMTUBESHEETDEFECTSSLUDGEACCUMULATIONONTUBESHEETDEFECTSAT7UBESUPPORTPLATESDESIGNFEATURESCLOSEDCREVICEHYDRAULICEXPANSIONINCONEL690TUBINGHIGHCIRCULATIONRATIOINSPECTION/MAINTEN-ANCEPORTSACCESSIBLEFORSLUDGELANCINGLATTICEGRIDSSTAINLESSSTEELCONSTRUCTIONINCONEL690MATERIALHIGHCYCLEFATIGUEFANBARSUPPORTSYSTEMWATERHAMMERJ-TUBEFAILURESGOOSENECKATFEEDWArERRINGINLETI-TUBESINCONEL690FOREROSIONRESISTANCE24March94

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GinnaSlationBwl)BechtglCONTAINMENTOPENINGMODELCONTAINMENTOPENINGDESIGNINCLUDEDINBKCHTKLWORKSCOPKRGKMODELFOROVKRCHKCKOFBKCHTKLDESIGNANSYSFINITEELEMENTMODELINCLUDESENTIRECONTAXNMKNTSTRUCTUREROCKANCHORSBASErVrATSWALLSANDTENDONSSPRjNGLINEANDTRANSITIONDOMESTEEL,CONCRETEANDLINERPLATEMODELDEVELOPMENTCOMPLETEVERIFIEDAGAINSTCLASSICALSOLUTIONS~WILLBEAVAILABLETOVERIFYBECHTELDESIGNANDFORCONSTRUCTION.24March94 V'Cn GinnaStationBechtelSCHEDULEFORINkOl&'IATIOWAISUBMITTAISCOMPONENTACTIVITIESPRELIMINARYSAFETYEVALUATIONMAY1994FINALREPORT/50.59EVALUATIONMAY1995nSrAI,r.ETIO~WCTVmIKSSAFETYEVALUATIONOFCONTAINMENTOPENINGAUGUST1994SAFETYEVALUATIONOFRIGGINGANDHANDLINGSAFETYEVALUATIONOFSTEAMGENERATORPIPINGSAFETYEVALUATIONOFSTEAMGENERATORINSULATIONTESTINGANDINSPECTIONPLANOCTOBER1994DECEMBER1994DECEMBER1994MARCH199524March94 GinnaStationBechtelIpmp0anRochesterGasandElectricSCHEDULE<FORSUBMITTAI,SFORREIVIKWI-690RELIEFREQUESTMAY1994CURRENTSTFAMGENERATORTUBERUPTUREANALYSISJULY1994FUElRELOADREPORTAUGUST199524March94I E0