ML17334A898

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Requests Changes to Analysis of Record,Supporting Current Tech Specs.Proposed Revised Analysis for 3,250 Mwt Large Break LOCA Analysis Encl.Fee Paid
ML17334A898
Person / Time
Site: Cook 
Issue date: 07/23/1985
From: ALEXICH M P
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To: DENTON H R
Office of Nuclear Reactor Regulation
References
AEP:NRC:0941, AEP:NRC:941, NUDOCS 8507310028
Download: ML17334A898 (114)
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REGULATORINFORMATIONDISTRIBUTIONiTEM(RIDS)ACCESSIONNBR:8507310028DOC~DATE;85/07/23NOTARIZED:NODOCKET¹FACIL:50-315DonaldC.CookNuclearPoserPlantiUnitliIndiana~05000315AUTH,NAME,AUTt/ORAFFILIATIONALEXICHiM,P,Indiana8MichiganElectricCo,RECIPNAME.RECIPIENTAFFILIATIONDENTONiH~REOfficeofNuclearReactorRegulationiDirector

SUBJECT:

RequestschangestoanalysisofrecordisupportingcurrentTechSpecs.Proposedrevisedanalysisfor3i250MYtlargebreakLOCAanalysisencl'eepaid.DISTRIBUTIONCODE:A001DCOPIESRECEIVED:LTRENCLSIZE':TITLE:,ORSubmittal:GeneralDistributionNaiES:5~-~@P~7~OL;10/25/7405000315RECIPIENTIDCODE/NAMENRRORB1BC01INTERNAL;ACRS09ELD/HDS3NRR/DLDIRNRR/DL/TSRGNRR/DSI/RABRGN3COPIESLTTRENCL776610'111111RECIPIENTIDCODE/NAMEADM/LFMBNRR/DE/MTEBNRR/DL/ORABNMETBGFIL04COPIESLTTRENCL'011101111EXTERNAL:24XLPDRNSIC0305111111EGtIGBRUSKEiSNRCPDR021111TOTALNUMBEROFCOPIESREQUIRED:LTTR28ENCL25

~1I7,~H"IIW'WV""qCIHHII~&C.I'"W~I'I INDIANA8MICHIGANELECTRICCOMPANYP.O.BOXI6631COLUMBUS,OHIO43216July23,1985AEP:NRC:0941DonaldC.CookNuclearPlantUnitNo.1DocketNo,50-315LicenseNo.DPR-58,CHANGETOANALYSISOFRECORDSUPPORTINGFLIMITSFORNESTINGHOUSEFUELMr.HaroldR.Denton,DirectorOfficeofNuclearReactorRegulationU.S.NuclearRegulatoryCommissionl1ashington,D.C,20555

DearMr.Denton:

Bythisletteranditsattachment,werequestchangestotheanalysisofrecord,whichsupports=thecurrentTechnicalSpecificationsfortheDonaldC.CookNuclearPlantUnitNo.1.Thisrevisedanalysisissubmittedin.accordancewithaMay28,1985telephonecallwithmembersofyourstaffconcerningtheSlestinghouseBART-MREFLOODinterfacerevision,thedetailsofwhichhavebeenreportedtoyourstaffbytlestinghouseElectricCorporation.Ourreviewindicatesthatnochangeisrequiredtothe=TechnicalSpecificationsfortheDonaldC.CookNuclear-PlantUnitNo.1asaresultofthisanalysis.Theproposedrevisedanalysisiscontainedintheattachment,andisofthesameformatasAttachmentDtoletterAEP:NRC:0745M,datedAugust23,1984'Reviewofthisanalysisis=neededpriortoinitialentry-intoMode1fortheDonaldC.CookUnit1Cycle9startup.ThisiscurrentlyscheduledtooccuronAugust18,1985.TheseproposedchangestotheanalysisandtheirinteractionwiththecurrentTechnicalSpecificationswill-be-=reviewedbythePlantNuclearSafetyReviewCommittee(PNSRC)andbytheNuclearSafetyandDesignReviewCommittee(NSDRC)priortoUnit1entryintoMode1,Incompliancewiththerequirementsof10CFR50.91(b)(1),acopyofthisletteranditsattachmentshavebeentransmittedtoMr,R.C.CallenoftheMichiganPublicServiceCommission.Pursuantto10CFR170.12(c),wehaveenclosedanapplicationfeeof4150.00forthereviewoftheattachedanalysis.!85073i0028850723PDRADDCK05000315pPDR.

1t1 P~~Mr.HaroldR.DentonAEP:NRC:0941ThisdocumenthasbeenpreparedfollowingCorporateprocedureswhichincorporateareasonablesetofcontrolstoinsureitsaccuracyandcompletenesspriortosignaturebytheundersigned.Verytrulyyours,M.P.AlexichVicePresident"l IdkF Hr.HaroldR.Dentonw3wAEP:NRC:0941

Attachment:

"D.C.CookUnit13250K/tLargeBreakLOCAAnalysis",llestinghouseElectricCorporation,July,1985.cc:JohnE.DolanM.G.Smith,Jr.-BridgmanR.C.CallenG.BruchmannG.CharnoffNRCResidentInspector-Bridgman 1I~y4lfk4~tII0l1'l ATTACHMENTTOAEP:NRC:0941"DC.COOKUNIT13250MWtLARGEBREAKLOCAANALYSIS",WESTINGHOUSEELECTRICCORPORATION,JULY,1985.

'I1f')if WESTINGHOUSEPROPRIETARYCLASS314.0.1MajorLOCAAnalysesApplicabletoWestinghouseFuelIdentificationofCausesandFreuencClassificationAloss-of-coolantaccident(LOCA)istheresultofapiperuptureoftheRCSpressureboundary.Fortheanalysesreportedhere,amajorpipebreak(largebreak)isdefinedasarupturewithatotalcross-sectionalareaequaltoorgreaterthan1.0ft.ThiseventisconsideredanANSConditionIVevent,a2limitingfault,inthatitisnotexpectedtooccurduringthelifetimeofD.C.CookUnit1,butispostulatedasaconservativedesignbasis.rTheAcceptanceCriteriafortheLOCAaredescribedin10CFR50.46(10CFR50,46andAppendixKof10CFR501974)('sfollows:(1)1.Thecalculatedpeakfuelelementcladtemperatureisbelowtherequirementof2,200'F.2.Theamountoffuelelementcladdingthatreactschemicallywithwaterorsteamdoesnotexceed1percentofthetotalamountofZircaloyinthereactor.3.Thecladtemperaturetransientisterminatedatatimewhenthecoregeometryisstillamenabletocooling.Thelocalizedcladding~oxidationlimitof17percentisnotexceededduringorafterquenching.4.Thecoreremainsamenabletocoolingduringandafterthebreak.5.Thecoretemperatureisreducedanddecayheatisremovedforanextendedperiodoftime,asrequiredbythelong-livedradioactivityremaininginthecore.Thesecriteriawereestablishedtoprovidesignificantmargininemergencycorecoolingsystem(ECCS)performancefollowingaLOCA.WASH-1400(USNRC1975)presentsarecentstudyinregardstotheprobabilityofoccurrence(10)ofRCSpiperuptures3132LS-01186514.D-1 WESTINGHOUSEPROPRIETARYCLASS3SeuenceofEventsandSstems0erationsShouldamajorbreakoccur,depressurization'oftheRCSresultsinapressuredecreaseinthepressurizer.Thereactortripsignalsubsequentlyoccurswhenthepressurizerlowpressuretripsetpointisreached.Asafetyinjectionsignalisgeneratedwhentheappropriatesetpointisreached.Thesecounter-measureswilllimittheconsequencesoftheaccidentintwoways:1.Reactortripandboratedwaterinjectionsupplementvoidformationincausingrapidreductionofpowertoaresiduallevelcorrespondingtofissionproductdecayheat.However,nocreditistakenintheLOCAanalysisfortheboroncontentoftheinjectionwater.Inaddition,theinsertionofcontrolrodstoshutdownthereactorisneglectedinthelargebreakanalysis.2.Injectionofboratedwaterprovidesforheattransferfromthecoreandpreventsexcessivecladtemperatures.ThetimesequenceofeventsfollowingalargebreakLOCAispresentedinTable14.0-6.Beforethebreakoccurs,theunitisinanequilibriumcondition;thatis,theheatgeneratedinthecoreisbeingremovedviathesecondarysystem.Duringblowdown,heatfromfissionproductdecay,hotinternalsandthevessel,continuestobetransferredtothereactorcoolant.Atthebeginningoftheblowdownphase,theentireRCScontainssubcooledliquidwhichtransfersheatfromthecorebyforcedconvectionwithsomefullydevelopednucleate'oiling.Afterthebreakdevelops,thetimetodeparturefromnucleateboilingiscalculated,consistentwithAppendixKof10CFR50.Thereafter,the'1)coreheattransferisunstable,withbothnucleateboilingandfilmboilingoccurring.Asthecorebecomesuncovered,bothturbulentandlaminarforcedconvectionandradiationareconsideredascoreheattransfermechanisms.TheheattransferbetweentheRCSandthesecondarysystemmaybeineitherdirection,dependingontherelativetemperatures.Inthecaseofcontinuedheatadditiontothesecondarysystem,thesecondarysystempressureincreases14.0-2 1CWESTINGHOUSEPROPRIETARYCLASS3andthemainsteamsafetyvalvesmayactuatetolimitthepressure.Makeupwatertothesecondarysideisautomaticallyprovidedbytheemergencyfeedwatersystem.Thesafetyinjectionsignalactuatesafeedwaterisolationsignalwhichisolatesnormalfeedwaterflowbyclosingthemainfeedwaterisolationvalves,andalsoinitiatesemergencyfeedwakerflowbystartingtheemergencyfeedwaterpumps.ThesecondaryflowaidsinthereductionofRCSpressure.WhentheRCSdepressurizesto600psia,-theaccumulatorsbegintoinjectboratedwaterintothereactorcoolantloops.Theconservativeassumptionismadethataccumulatorwaterinjectedbypassesthecoreandgoesoutthroughthebreakuntiltheterminationofbypass.ThisconservatismisagainconsistentwithAppendixKof10CFR50.Sincelossofoffsitepower(LOOP)isassumed,theRCPsareassumedtotripattheinceptionoftheaccident.Theeffectsofpumpcoastdownareincludedintheblowdownanalysis.TheblowdownphaseofthetransientendswhentheRCSpressure(initiallyassumedat2280psia)fallstoavalueapproachingthatofthecontainmentatmosphere,Priortoorattheendoftheblowdown,themechanismsthatareresponsiblefortheemergencycorecoolingwaterinjectedintotheRCSbypassingthecorearecalculatednottobeeffective.Atthistime(calledend-of-bypass)refillofthereactorvessellowerplenumbegins.Refilliscompletedwhenemergencycorecoolingwaterhasfilledthelowerplenumofthereactorvessel,whichisboundedbythebottomofthefuelrods(calledbottom-of-corerecoverytime).Therefloodphaseofthetransientisdefinedasthetimeperiodlastingfromtheend-of-refilluntilthereactorvesselhasbeenfilledwithwatertotheextentthatthecoretemperaturerisehasbeenterminated.Fromthelatterstageofblowdownandthenthebeginning-of-reflood,thesafetyinjectionaccumulatortanksrapidlydischargeboratedcoolingwaterintotheRCS,contributingtothefillingofthereactorvesseldowncomer.Thedowncomerwaterelevationheadprovidesthedrivingforcerequiredfortherefloodingofthereactorcore.Thelowheadandhighheadsafetyinjectionpumpsaidinthefillingofthedowncomerand,subsequently,supplywatertomaintainafulldowncomerandcompletetherefloodingprocess.tl3tL6-071MS14.0-3 WESTINGHOUSEPROPRIETARYCLASS3ContinuedoperationoftheECCSpumpssupplieswaterduringlongtermcooling.Coretemperatureshavebeenreducedtolongtermsteadystatelevelsassociatedwithdissipationofresidualheatgeneration.Afterthewaterleveloftheresidualwaterstoragetank(RHST)reachesaminimumallowablevalue,coolantforlong-termcoolingofthecoreisobtainedbyswitchingtothecoldrecirculationphaseofoperationinwhichspilledboratedwaterisdrawnfromtheengineeredsafetyfeatures(ESF)containmentsumpsbyihelowheadsafetyinjection(residualheatremoval)pumpsandreturnedtotheRCScoldlegs.Thecontainmentspraysystemcontinuestooperatetofurtherreducecontainmentpressure.Approximately24hoursafterinitiationoftheLOCA,theECCSisrealignedtosupplywatertotheRCShotlegsinordertocontroltheboricacidconcentra-tioninthereactorvessel.CoreandSstemPerformanceMathematicalModel:TherequirementsofanacceptableECCSevaluationmodelarepresentedinAppendixKof10CFR50(FederalRegister1974).LargeBreakLOCAEvaluationModelTheanalysisofalargebreakLOCAtransientisdividedintothreephases:(1)blowdown,(2)refill,and(3)reflood.Therearethreedistincttran-sientsanalyzedineachphase,includingthethermal-hydraulictransientintheRCS,thepressureandtemperaturetransientwithinthecontainment,andthefuelandcladtemperaturetransientofthehottestfuelrodinthecore.Basedontheseconsiderations,asystemofinterrelatedcomputercodeshasbeendevelopedfortheanalysisoftheLOCA.AdescriptionofthevariousaspectsoftheLOCAanalysismethodologyisgivenbyBordelon,Massie,andZordan(1974).Thisdocumentdescribesthemajorphenomenamodeled,theinterfacesamongthecomputercodes,andthefeaturesofthecodeswhichensurecompliancewiththeAcceptanceCriteria.14.0-4 WESTINGHOUSEPROPRIETARYCLASS3TheSATAN-VI,WREFLOOD,BARTandLOCTA-IVcodes,whichareusedintheLOCAanalysis,aredescribedindetailbyBordelon,etal.(1974);Kelly,etal.(5).(1974);Young,etal.(1980)(';BordelonandMurphy(1974)(';andBordelon,(9).(16).(41etal.(1974).CodemodificationsarespecifiedinReferences2,7,13,(6)and17,Thesecodesassessthecoreheattransfergeometryanddetermineifthecoreremainsamenabletocoolingthroughoutandsubsequenttotheblow-down,refill,andrefloodphasesoftheLOCA.TheSATAN-VIcomputercodeanalyzesthethermal-hydraulictransientintheRCSduringblowdownandtheWREFLOODcomputercodecalculatesthistransientduringtherefillandrefloodphasesoftheaccident.TheLOTICcomputercode,describedbyHsiehandRaymundinWCAP-8355(1975)andWCAP-8345(1974),calculatesthecontain-mentpressuretransient.ThecontainmentpressuretransientisinputtoWREFLOODforthepurposeofcalculatingtherefloodtransient.TheLOCTA-IVcomputercodecalculatesthethermaltransientofthehottestfuelrodduringthethreephases.TheRevisedPadFuelThermalSafetyModel,describedinReference15,generatestheinitialfuelrodconditionsinputtoLOCTA-IV.SATAN-VIcalculatestheRCSpressure,enthalpy,density,andthemassandenergyflowratesintheRCS,aswellassteamgeneratorenergytransferbetweentheprimaryandsecondarysystemsasafunctionoftimeduringtheblowdownphaseoftheLOCA.SATAN-VIalsocalculatestheaccumulatorwatermassandinternalpressureandthepipebreakmassandenergyflowratesthatareassumedtobeventedtothecontainmentduringblowdown.Attheendofthe.blowdownphase,thesedataaretransferredtotheWREFLOODcode.Also,attheend-of-blowdown,themassendenergyreleaseratesduringblowdownareinputtotheLOTICcodeforuseinthedeterminationofthecontainmentpressureresponseduringthisfirstphaseoftheLOCA.AdditionalSATAN-VIoutputdatafromtheend-of-blowdown,includingthecoreinletflowrateandenthalpy,thecorepressure,andthecorepowerdecaytransient,areinputtotheLOCTA-IVcode.WithinputfromtheSATAN-VIcode,WREFLOODusesasystemthermal-hydraulicmodeltodeterminethecorefloodingrate(thatis,therateatwhichcoolantentersthebottomofthecore),thecoolantpressureandtemperature,andthequenchfrontheightduringtherefloodphaseoftheLOCA.WREFLOODalsocalculatesthemassandenergyflowadditiontothecontainmentthroughthe14.D-5 WESTINGHOUSEPROPRIETARYCLASS3break.RefloodconditionsaresuppliedtotheBART.codewhichperformstheheattransferCalculationfortheaveragefuelchannelinthehotassemblyusingamechanisticcoreheattransfermodel.ThisinformationisthenusedbyLOCTA-IVtocalculatethefuelcladtemperatureandmetal-waterreactionofthehottestrodinthecore.ThelargebreakanalysiswasperformedwiththeDecember1981versionoftheEvaluationModelmodifiedtoincorporatetheBARTcomputercode.InputParametersandInitialConditions:Theanalysispresentedinthissectionwasperformedwithareactorvesselupp'erheadtemperatureequaltotheRCShotlegtemperature.Thebasesusedtoselectthenumericalvaluesthatareinputparameterstotheanalysishavebeenconservativelydeterminedfromextensivesensitivitystudies(Westinghouse1974;Salvatori1974(';Johnson,Massie,andThompson(1Z).(11)1975).Inaddition,therequirementsofAppendixKregardingspecificmodel(8)featuresweremetbyselectingmodelswhichprovideasignificantoverallconservatismintheanalysis.TheassumptionswhichweremadepertaintotheconditionsofthereactorandassociatedsafetysystemequipmentatthetimethattheLOCAoccurs,andincludesuchitemshsthecorepeakingfactors,thecontainmentpressure,andtheperformanceoftheECCS.Decayheatgeneratedthroughoutthetransientisalsoconservativelycalculated.AmeetingwasheldattheWestinghouseLicensingOfficeinBethesdaonDecember17,1981betweenmembersoftheU.S.NuclearRegulatoryCommissionandmembersoftheWestinghouseNuclearSafetyDepartmenttodiscusstheimpactofmaximumsafetyinjectiononthelargebreakECCSanalysisonagenericbasis.FurtherdiscussionofthisissueisprovidedinaletterfromE.P.Rahe,ManagerofWestinghouseNuclearSafetyDepartment,toRobertL.TedescooftheU.S,NuclearRegulatoryCommission.Abriefdescription(14)ofthisissueisgivenbelow.WestinghouseECCSanalysescurrentlyassumeminimumsafeguardsforthesafetyinjectionflow,whichminimizestheamountofflowtotheRCSbyassuming14.0-6 d~'ESTINGHOUSEPROPRIETARYCLASS3maximuminjectionlineresistances,degradedECCSpumpperformance,andthelossofoneresidualheatremoval(RHR)pumpasthemostlimitingsinglefailure.ThisisthelimitingsinglefailureassumptionwhenoffsitepowerisunavailableformostWestinghouseplants.However,forsomeWestinghouseplants,includingD.C.CookUnit1,thecurrentnatureoftheAppendixKECCSevaluationmodelsissuchthatitmaybemorelimitingtoassumethemaximumpossibleECCSflowdelivery.Inthatcase,maximumsafeguards,whichassumeminimuminjectionlineresistances,enhancedECCSpumpperformance,andnosinglefailure,resultinthehighestamountofflowdeliveredtotheRCS.CurrentLOCAanalysisforD.C.CookUnit1hasdemonstratedthatmaximumsafeguardsassumptionsresultinthehighestpeakcladtemperature.Therefore,theworstbreakfor0.C.CookUnit1(CD=0.6)wasreanalyzed,assumingmaximumsafeguards.Results:BasedontheresultsoftheLOCAsensitivitystudies(Westinghouse1974Salvatori1974';Johnson,Massie,andThompson1975)thelimiting(11).largebreakwasfoundtobethedoubleendedcoldlegguillotine(DECLG).Therefore,onlytheDECLGbreakisconsideredinthelargebreakECCSperformanceanalysis.CalculationswereperformedforarangeofMoodybreakdischargecoefficients.TheresultsofthesecalculationsaresummarizedinTables14.0-5and14.D-6.ThecontainmentdatausedtogeneratetheLOTICbackpressuretransientareshowninTable14.D-l.ThemassandenergyreleasedatafortheminimumandmaximumsafeguardscasesareshowninTables14.0-2and14.0-3,respectively.NitrogenreleaseratestothecontainmentaregiveninTable14.0-4.Figures14.D-1through14.0-64presentthetransientsfortheprincipalparametersforthebreaksizesanalyzed.Thefollowingitemsarenoted:~di.1111d<<*dd~211dtemperature),bothonthehottestfuelrod(hotrod):14.0-7 1Ie "WESTINGHOUSEPROPRIETARYCLASS31.fluidquality,2.massvelocity;3.heattransfercoefficient.TheheattransfercoefficientshowniscalculatedbytheLOCTA-IVcode.Fiures14.0-13throuh14.0.24Thesystempressureshownisthecalculatedpressureinthecore.Theflowratefromthebreakisplottedasthesumofbothendsfortheguillotinebreakcases.Thecorepressuredropshownisfromthelowerplenum,nearthecore,totheupperplenumatthecoreoutlet.Fiures14.0-25throuh14.0-36Thesefiguresshowthehotsp'otcladtemperaturetransientandthecladtemperaturetransientattheburstlocation.Thefluidtemperatureshownisalsoforthehotspotandburstlocation.Thecoreflow(topandbottom)isalsoshown.7th~hFiures14.D-45throuh14.0-52ThesefiguresshowtheEmergencyCoreCoolingSystemflowforallofthecasesanalyzed.Asdescribedearlier,theaccumulatordeliveryduringblowdownisdiscardeduntiltheendofbypassiscalculated.Accumulatorflow,however,isestablishedintherefillandtherefloodcalculations.Theaccumulatorflowassumedisthesumofthatinjectedintheintactcoldlegs.Fiures14.D-53throuh14,0-54ThecontainmentpressuretransientusedintheanalysisisalsoprovidedfortheminimumandmaximumSIcases,Fiures14.0-55and14.0-60Thesefiguresshowtheheatremovalratesoftheheatsinksfoundinthelowercompartmentandtheheatremovalbythelowercontainmentdrain,andtheheatremovalbythesumpandLCsprays(minimumandmaximumSIcases).14.0-8 WESTINGHOUSEPROPRIETARYCLASS3Fiures14.D-61throuh14.0-64Thesefiguresshowthetemperaturetransientsinboththeupperandlowercompartmentsofthecontainmentandflowfromtheuppertolowercompartments.Totalheatremovalinthelowercompartmentisthesumofalltheheatremovalratesshown(forminimumandmaximumSIcases).Themaximumcladtemperaturecalculatedforalargebreakis2154'F,whichislessthantheAcceptanceCriterialimitof2200'F.Themaximumlocalmetal-waterreactionis6.46percent;whichiswellbelowtheembrittlementlimitof17percentasrequiredby10CFR50.46.Thetotalcoremetal-waterreactionislessthan0.3percentforallbreaks,ascomparedwiththe1percentcriterionof10CFR50.46.Thecladtemperaturetransientisterminatedatatimewhenthecoregeometryisstillamenabletbcooling.Asaresult,thecoretemperaturewillcontinuetodropandtheabilitytoremovedecayheatgeneratedinthefuelforanextendedperiodoftimewillbeprovided.3l32L:507166514.0-9

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WESTINGHOUSEPROPRIETARYCLASS3ReferencesforSection14.0-11."AcceptanceCriteriaforEmergencyCoreCoolingSystemforLightWaterCooledNuclIearPowerReactors,"10CFR50.46andAppendixKof10CFR50,FederalReister1974,Volume39,Number3.2.Rahe,E.P.(Westinghouse),lettertoJ.R.Miller(USNRC),LetterNo.NS-EPRS-2679,November1982.3.Hsieh,T.,andRaymund,M.,"LongTermIceCondenserContainmentLOTICCodeSupplement1,"WCAP-8355,Supplement1,May1975,WCAP-8345(Proprietary),July1974.4.Bordelon,F.M.etal.,"LOCTA-IVProgram:Loss-of-CoolantTransientAnalysis,"WCAP-8301(Proprietary)andWCAP-8305(Non-proprietary),1974.5.Bordelon,F.M.etal.,"SATAN-VIProgram:ComprehensiveSpace,TimeDependentAnalysisofLoss-of-Coolant,"WCAP-8302(Proprietary)andWCAP-8306(Non-proprietary),1974.6.Bordelon,F,M.;Massie,H.W.;andZordan,T.A.,"WestinghouseECCSEvaluationModel-Summary,"WCAP-8339,1974.7.Rahe,E.P.,"WestinghouseECCSEvaluationModel,1981Version,"WCAP-9220-P-A(ProprietaryVersion),WCAP-9221-P-A(Non-proprietaryversion),Revision1,1981.8.Johnson,W.J.;Massie,H.W.;andThompson,C.M.,"WestinghouseECCS-FourLoopPlant(17x17)SensitivityStudies,"WCAP-8565-P-A(Proprietary)andWCAP-8566-A(Non-proprietary),1975.9.Kelly,R.D.etal.,"CalculationalModelforCoreRefloodingAfteraLoss-of-CoolantAccident(WREFLOODCode),"WCAP-8170(Proprietary)andWCAP-8171(Non-proprietary),1974.14.D-10 I

WESTINGHOUSEPROPRIETARYCLASS310.U.S.Nuc1earRegulatoryCommission1975,"ReactorSafetyStudy-AnAssessmentofAccidentRisksinU.S.CommercialNuclearPowerPlants,"HASH-1400,NUREG-75/014.11.Salvatori,R.,"HestinghouseECCS-PlantSensitivityStudies,"HCAP-8340(Proprietary)andWCAP-8356(Non-proprietary),1974.12."WestinghouseECCS-EvaluationModelSensitivityStudies,"WCAP-8341(Proprietary)andMCAP-8342(Non-proprietary),1974.13.Bordelon,F.M.,etal.,"WestinghouseECCSEvaluationModel-SupplementaryInformation,"WCAP-8471(Proprietary)andHCAP-8472(Non-proprietary),1975.14.Rahe,E.P.(Westinghouse).LettertoRobertL.Tedesco(USNRC),LetterNo.NS-EPR-2538,December1981.15."WestinghouseRevisedPADCodeThermalSafetyModel,"MCAP-8720,Addendum2(Proprietary)andHCAP-8785(Non-proprietary).16.Young,M.Y.etal.,"BART-Al:AComputerCodefortheBestEstimateAnalysisofRefloodTransients,"MCAP-9561-PLA(Proprietary)andHCAP-9695-A(Non-proprietary)January1980.17.Thomas,C.0.,(NRC)"AcceptanceforReferencingofLicensingTopicalReportHCAP-10484(P)/10485(NP),'SpacerGridHeatTransferEffectsDuringReflood,'"LettertoE.P.Rahe(Westinghouse),June21,1984.18.SpecialReportNS-NRC-85-3025(NP),"BART-HREFLOODInputRevision".3132L507'I88514.D-11 WESTINGHOUSEPROPRIETARYCLASS3TABLE14.D-lLARGEBREAKCONTAINMENTDATA(ICECONDENSERCONTAINMENT)NETFREEVOLUME(IncludesDistributionBetweenUpper,Lower.andDead-EndedCompartments)UC746,829ftLC249,446DE,116,168IC122,400InitialConditionsPressureTemperaturefortheUpper,LowerandDead-EndedCompartmentsRHSTTemperatureServiceHaterTemperatureTemperatureOutsideContainmentInitialSprayTemperatureUCLCDE14.7psia100'F120'F120'F70'F40'F-7'F70'FSpraySystemRunoutFlowforaSprayPumpNumberofSprayPumpsOperatingPost-AccidentInitiationofSpraySystemDistributionoftheSprayFlowtotheUpperandLowerCompartmentsLCUC3600gpm240secs2835gpm"4365gpmDeckFanPost-AccidentInitiationofDeckFansFlowRatePerFan600secs39,000cfmperfanHydrogenSkimmerSystemFlowRate2,800cfmperfanAssumedSprayEfficiencyofHaterfromIceCondenserDrains100%14.0-12 I1e WESTINGHOUSEPROPRIETARYCLASS3TABLE14.D-1(continued)STRUCTURALHEATSINKSComartmentAreaft2ThicknessftMaterial1.LC2.LC3.LC4.LC5.LC6.LC7.LC8.LC9.LC10.LC.11.LC12.LC13.UC14.UC15.UC16.UC17.UC18.UC19.UC12,10511,70065,9805,4814,73528914,6903,4395,7754,9667,0132,45737829,7728,03342029,33034,1252100.0469/2.02.01.350.08330.011470.250.00790.15610.0090.00960.0370.0334.1667/.0365.0092,0209.00521.470,0469/2.0.0052steel/concreteconcreteconcretesteelsteelleadsteelsteelstee'.steelsteelsteelsteel/concretesteelsteelsteelconcretesteel/concretesteelUC:UpperCompartmentLC:LowerCompartmentOE:Dead-EndedCompartmentIC:IceCondenserCompartment3132LO-07'I6$514.0-13 A<WESTINGHOUSEPROPRIETARYCLASS2TABLE14.0-2MASSANOENERGYRELEASERATESMINIMUMSITIME(sec)O.~2000~7<4CCOK~>.$000K~1.$0COt~1.Iaaat0212~~.1400K'2.1$00KM2.1$00K~2.1700K~.3500~.2OQC~Wlaaf~..220OC02.2200K~.2400K02.250~"2$00~'..;~~-~.2500KCC.2$00t~..2000K02-.2400fOZ.2$00K02.2$50C02.4500K02~12f40~$~f~.$$$2E~:5$02C~.5422K02$$22C02~%1$2f~.$$42K02.1045KM2.124$K02.14$$~1$$2E~.2525K~.222CEND.2$25C~MASS(tb/sec)".$$2$f~~"4$4$CCO<.2$0$t~.2T4TK~.2221K~.20$'tt~'.'$1$KCIS.-"1700&05".1$04t05.~14$0K~.12T1t~~'I252K~'<%107%~~i"-.;104$~~."<$742C~.$25$EM~77$$E~~';$25~a$422K~>-;$2$$1~..$$47K~.7$$$K~,74$4C~$$3$$~4140K~~2225K~.2$$$K~.7805K402~4$$OCCO'.-.'4$$OK~g'<.'.~4$$OCM"'4%'5TZ~,4$17f~~4$17K021$K~.4$1$K~:.";,N1$%%R~$7$7K~.$$24C~.5012K~2.$0$$K~~$22t02".$25$K~.$50TK~2.$$$2K~ENERGY(BTU/sec).20$2E~.24$5E~.3$$1K~~145$EW$~1207f~.1125K~~1022K4CO~<<$$2$t~<$24$f~.$7$2KN)7.$1$CK~.T5$0C~T~$$42&N77.$277K~*<$$$4fwP.5524K~<4$$0f~,4502K~-2$$7&07'<22$$EN7T~2415K~..22$$C~.217$f~7.2$0$C'<OT.21$'2fK7T..1420K~.$$$0E~.$74$E~.1$72E~.2505K~~&45~22$$f~.2254K~.22$2EM5.2274K%75.2272K%757002C45<2272K0$.2252K0%.2225K~.22$2f0%2~~$POC.2102K~.1$7KOC~1$2TCOC.1775K~3133Lb07166114.0-14 WESTINGHOUSEPROPRIETARYCLASS3TABLE14.D-3MASSANOENERGYRELEASERATESMAXIMUMSIT(eE(src].200OE+01.4003Ei01.6000E+01.8003fi0$.$000E~02.$200Es02.1240E+02.$400E+02.1500E~02.1600Es02.1700f~02.$800E+02.$$00Ei02.200OE+02.2100E~02.2200E+02~230i3E~02.2400Es02.250OE+02.2600Ei02.2700Ei02.2800E+02.2893E+02.308efs02.3500fi02.400OE~02.4344E+02.4394fi02.4464E+02.4~92E~02.4553E402.4$77E+02.5$88E+02.5371E+02.6333E+02.7408fi02.93$0E~02.1032f~03.12~3f~03.$379E+03.1463Ei03.$578fi03.1706E~03.18sdf~03.$949E+03.2164f~03(it~isrc).6935E+05.5708EF05.397$Ei05.3076E405.2791fF052437E+05.1956EF05.$749E~05.1546f+05.$37dfs05.$225E+05.105IE+05.$591E+04.8509fs04.7006fs04.4979E+04.4677fs04.6867E+04.735If+04.6629fi04.5302E~04.4580EF04.3860E+04.3672E+04.2539E+04.2867E~03.2867E~03.2867fi03.2909E~03.2944E~03.2908EK)3.2956E~03.31b6Es03.3249fs03.4579E+04.$098fi04.1$05E~04.111$E~04.1035f~04.1038E~04.$$99E~04.104If+04.105QE+04.1064E+04.1072EF04.1152E+04.1$57f+04E'IvEfC6Y(sru/srr).3691Ei08~2$86f+08.2$$7E+08702Ei08~1568E~08~$405E+08.$$6$E+nds1051f~08.9504f+07.8649fi07.7896EF07.7056E+07.6565fs07.589$E+07.50$8E+07.3701E+07.2909E+07.3176f+07.2906Es07.2235fs07.$5$$E+07.1166E+07.9$56E~06.7425E+06.3709fs06.1091E~05.1091E~05.109If+05.$633fi05.2092E405.1623Ei05.2244f~05.5222E~OS.6043E+05.4290fs06.2085fi06.2076fs06.2055E+06.$$0$E+06.$898E~06.2182fi06".1895E~06.1909Es06.$$3$E~06.1$40E+06.2079E~06.2072fi06lllltcd011SS514.0-15

1,~WESTINGMOUSEPROPRIETARYCLASS3TABLE14.0-4NITROGENMASSANDENERGYRELEASERATESTIME(sec)FLOWRATE(lb/sec)37.539.545.547.553.555.557.560.266.268.274.276.278.280.282.284.290.292.2106.2108.2122.2124.2138.2140.2154.2156.2166.271.960.737.231.618.815.612.8266.6159.9135.983.370.359.049.140.633.318.515.76.96.33.02.71.31,20,520.470.2814.0-16 e

~))WESTINGHOUSEPROPRIETARYCLASS3TABLE14.0-5LARGEBREAKResultsDECLGCD=0.8MinSIDECLGCD=0.6MinSIDECLGC,=0,4MinSIDECLGCD=0.6MaxSIPeakCladTemp.,'FPeakCladLocation,ftLocalZr/H20Reaction(Max),LocalZr/H20Location,ftTotalZr/H20Reaction,%HotRodBurstTime,secHotRodBurstLocation,ft18736.252.816.00<0.351.06.019376.05.116.25<0.343.26.2518857.502.835.75<0.354.605.752154.6.256.466.25<0.343.205.75CalculationLicensedCorePower(MHT)102%ofPeakLinearPower(kw/ft)102%ofPeakingFactor(atLicenseRating)AccumulatorHaterVolume(ft)perAccumulator325014.0982.10950CycleAnalyzedCycle83'I32L6-07164514.0-17 JI 4'WESTINGHOUSEPROPRIETARYCLASS3TABLE14.0-6LARGEBREAKTIMESEQUENCEOFEVENTSSTARTReactorTripSignalSafetyInjectionSignalAccumulatorInjectionEndofBlowdownBottomofCoreRecoveryAccumulatorEmptyPumpInjectionMinSIDECLGCD=0.8(sec)0.000.623.8213.027.3240.0056.2728.82MinSIDECLG'D=o(sec)I0.000.633.9415.630.3543.3859.2928.94MinSIDECLGCD=0.4(sec)'0.000.644.2020.8038.4952.6465.6529.20MaxSIDECLGCD=0.6(sec)0.00,0.633.9315.730.8543.4460.2928.933I32L:607l68514.0-18 ee 1.40001.8500COONuull1I1ltl0.0OCCLCHlVSl3250HVTCCCSLICOC1Vl>VI1011VOIIKVt10lQ<g,10ou1lllrotflulo~u0$>~C~00NilltK1%~Ceg51Tl>l1.000000O.noo0oo0.50lI0.25000.00Ikmm@m~~~~~~0000000IImmmmlliisis=i851.15-18TlHKlSKC'IFIGURE14.D-1FLUIDQUALITY,DECLG(C0.8)51INSI 1.40001.2500COOKUH)11IAK,P)0.6OCCLGHIHS13250HV1ECCSLSLOCAV11HBAR1AHOHfVPAOFOr210ou*cll~0FFculoSURSUM~6~25Fll'IPCAK~6~00F>t~lIO1.00000~0.)SOOO.SUOO0.2S000.088g888SQsprowrrlPpecorlo~~~~~~~00000000>>8888SSSOS88S8ooSo~~~~~QallsOwCrdl>>8g08SSSSS~~~~0000OOOOO~h<<4>rl>>88888888~888SSSSSAirlrlAlplCIA>>FIGURE14.D.-2FLUIDQUALITY,DECLG(CM0.6)MINSI11HCiSCC) l;~00ill.i2500COOKUHlll<ACP)O.AOfCLCHIHSI3250HM1f'CCSLBLOCAMlleBARlAHONfMPAOCO=2,l0ouAilt~0~ffulOBURST~5~>5<><>PfAK~1~50Pl(~lXl.0000~0.>5000.5v000.2500CtOOClm~eOOOOOO0O'~CCl4~E4PO~~~~oooooo-OOClClooooonone@OOOOClGGCIGOOOOOOOO~~~~~'lletAPLO~vOOOOOOO0PlOO'OO)oooo~~~~OOGOGOv'1%~CllITIOnClDCOOOCn=aC'Oo~~wone~~lPvvglFIGURE14.D-3FLUIDQUALITYDECLG(CD0.4)MINSITlHf<SfCI

~<~~

1.4000COOKUNIT1(AEP)0.6DECLGMAXSI3250MW1UPRATING:,ECCSLBLOCAWITHBARTANDNEWPADFQ2.10QUALITYOFFLUIDBURST,5~75FT()PEAK,6.25FT(*)1.25001.00000.7500OI~cC0.5000.l0.25000.0000oooooneo8oooCOOOOOOcp~~~~~~~~cOOOOO>>CICIoOnOOOI.~8OOOoioOOOOlOOO00OC.iC~~~~~gl~u>O>1'>>'t(Mfiaaf(e8Oc.oOrt\8ooggo0OOO~~~~O0GogoOnCIn888O88O.OOOOOOOCO00OOOOCmFIGURE14.9-4FLUIDQUALITY,DECLG(C~0.6)MAXSI (00$ueltl~itfi0.~05CiC$$laSl5ZSO<<OfCCC5L~LOCAVI5$$OAO54%0f$5VW40f0<2l0~$Assv(loclf$OOST~C.OOflllPf1%~O.gSfTlolleo-0.0.S0.000Ctl00.00Vl5-'ISO.OO-500.00~~~~~~~~0000D4WIIlIIII5.5l$$5tS(clIIIIIISHg.N5SStIB$~~~~$$$~5555555FIGURE14.D-5kfASSVELOCITY,DECLG(C~0.8)HINSI (664'hlll<>(P:0.6GfiLC<Ik~l3.'SO<vlli(~LO(hkithRA~1kkDk(vVAOiQig.luHaw'g~iiITv(RCI~h.$C'isP(Aa~c,.(iQff,~l0C0ODO0PlO000OOOQOOCOOOOGCOOO~;0QtQPQ~~~~~~00000>>00COOOOOOCCConOO0OOOGOO00OOOO~~~~~0rv>ulwc)IP>>l1H(lSL(>000Al00m00OOOOO0oo0cooo00C'OOC~~~~~0O000000rwVrmen>>00As88SSS~~~0000OOOO0000OOOOPlrI'1lD>EOCh<<FIGURE14.D-6MASSVELOCITY,DECLG(CD0.6)MINSI

~~~IN~0 C>>04UNITTI<fPlU.oOffLtiHl>>ST3250HsTfi'.5iOiOCAVITHeaRTARO>>fVPa0f0Z.T0Hi>'.VfLO(IT<f>URST~5T5fTIlPfAK~7>0FTI~)~-c'>0.'>0:l!0.<>'>f>X~lp!i.>;I~,'ell>.Ir>Cl<vClCl~v0onoooo00OOQQQQQQOQQQev<>>eo~~~~00OOOO0Cl00000OOOO0o0ooooo0000OOQQ000OOOO~~~~~QIllAIvCOOlTTHf~SfCiClAl00Cl000OC.~meo000000noooo00000~~~~~00OOOO~AlDvOIOlClCl00Qno'0000CQ'500OQQooornav1l>l>4l~FIGURE14D-7MASSVELOCITY>DECLG(CD0.4)MINSI

COOKUNIT1(AEP)0.6DECLGMAXSIECCSLBLOCA.WITHBARTFQ~2e10MASSVELOCITYBURST,5.75FT()PEAK,6.00FT(*)50.0000CJI0.0000-50.0000~~~st~tlt~~t~~~4I4-100.0000~-~~~tt.4~tl'4f~"t--4'~4tt~~'t.<t-t--150.0000"200.0000eeIII;~:jjie~fIIII,j~~I~ee~eeeee~eIIIt-eeejeII~e~e4pe(,~IetL..--~eeIIIeIIe4.IIeI~ecee~e>>e.o'.%~0A0aoaee~W~eeetoaoceaaa~+J7QCWOae':."~e'2'ea~~~)e%Jeet'FIGURE14.D-8MASSVELOCITY,DECLG(CD~0.6)MAXSITIME(SEC) 0500.00500.00~00.00$Xe.oo~NO+00COoaValfl~~tti~.0KCLCfrlaSlaCSe<<eltCC5LOLK0itlTNIAIDO100KVtilflC~llIClT10115~CKfflfltd0005foC00fitI'tlw~L,f%filo!:.f8~0+00050.000N5.000$.00004.0000IF0000f.0000$.00008TINCl5tt)FIGURE14.D-9HEATTRANSFERCOEFFICIENTDECLG(C~0.8)MINSI II 60u.oo5oo.noF00.00300.00200.00CooaUH111(AKP)0.6OKCltHIHSI3250HV1ECCSLBLOCAVI1HBAR1AHOHCVPAOf0<2.10HCA11RAHS.CO(ff)CICN1BURSTe6.25f11IPCAx~6.00f1'I60.00050.00010.00030.00020.0006.00005.ooooi.00003.00002.nono1.0000oOCICI1)HK<SEC'IFIGURE14.D-10))EATTRANSFERCOEFFICIENTDECLG(CD0.6)NINSI I

Yf,on.ooSOO.OO<<QO00xTOO.<<<)I<<<"-e00.00COOKUHIII<ACP>0.~OfCLGHIHSI32/0H)<TfCCSLBLOCAMITHBARTAHDHCMPAOf0Z.IO><CATTRAHS.COffflCICHTBURST~S.15fJ<>PfAX-.7.50fI<~>"I>'!)(I-"<n'.ot<<)"sn.onoi0.0<)030.0005;"u.u<)0.I"Il<<).L>'><)<L,.O<)ov$.<<<)<<0I.O(<<.<03.0')oc.0')ooI.oov<)ClnClnClClClIIHf<SfC>ClClClFIGURE14.D-11IIEATTRANSFERCOEFFICIENTDECLG(CD0.4)MINSI

)>"nLi:nrrfii)ls.,lil':i)0.)0sr)r).~il)!nl).ilii:00.<)0(OIIKUh))l~AfPO.fOL(LC<AC')50HVftl(:.iBl0).AVlf~BAatAh0hlVfADf0=<,f0HfAl)aAhr.(pffft'~)f'hfP)fi':~5./5flP1AA,fi.g'ft.ifr).unn~n,n0i)O~ii.l)00CJ39.i)nl)txlb00rf0$.!)i)nhb.f):>Ill)t.i)i)llnr.rrrrrr'r)~pig))OOCie>FIGURE14.D-12HEATTRANSFERCOEFFICIENTDECLG(C~0~6)MAXSID)IMfCIC)Ve IIP>EPEPiPCWP.BOE(<CB&EkaHlk',lVllHBabelWHOHEvPAOISIlSOia,'VSvblCBit.atiltSPClSClPPAESSVRECOREBPllUI4Il1UPgI~I~pIp~0lal~PO.P1PUU.U,caqPU.pCIlIHEUSE(>~~C'IFIGURE14.D-13COREPRESSURE'ECLGCD0.8)MINSI 2500.0AEPLBLOCA.ANALYSISWZTNgARTANDHplj.pinf5Xf5OFA2.5PSIGBACKFfLL5PCTSCTPtf:fIOECLCBREAKHfK"fPRESSURECOREBOTTOHlfTOP~l~)2000.0VIf500.01000.0500.000.0CIOEDCICIAlTTHElSEC)CICICImFIGURE14.D-14COREPRESSUREDECLG(CD=0.6)MINSI 2500.0>EPLBLOCAANALYSIS'MITIIBARTI5XI5OFA215PSICBACRTILL5PCTSGTPO.aOECLGBREWERHINSIPRESSURECOREBOTTOIIIITOP~I~I2000.0I500.0Il.l000.0'500.000.0ClTIHE{5ECIClCImCIClCIClInFIGURE14.D.-15COREPRESSUREDECLG(C=0.4)MINSID 8500.0AfPLBLOCAANALYSISWITIIMRTANDNEWPAD.ISII5OFA815PSIGBACKFILl5PCISGIPOo6OECLGBRfAKPRfSSURECOREBOllOH<>TOP~l~l8000.0aI500.0aCLI000.0500.000.0OAJtIHf<SfC>CICImFIGURE14D16COREPRESSUREDECLG(CD06)MAXSII 1.00E+05AEPL'BLOCA0.8DECI.GBRFAKMINSIWITllBAUNTANDNEWPAD15xl5OFA275PSIGBACKFILL5PCTSCTPBREFLOW8.00E+046.00E+044.00E+042.00E+040.0'CDCDCDoCDoOOC4OOCDCDCDCDCDooCDCDCDTINE(sec)FIGURE14.D-17BREAKFLOWRATE,DECLG(C=0.8)MINSI I.OOEK)5AEPLBLOCAANALYSIS'WITIL.BARTANDNEWPAD15KI5OfA215PSIGBACKfILL5PCTSGTP0~6OECLCBREAKHINSIOREAKfLOUcnB.OOE+Ol6.00ERiCDCCleCLCD4.00EOi2.00E+040.0CDCDCDCDCDTIHE(SEC)CDCDCDCDmCDCDCDFIGURE14.D-18BREAKFLOWRATE,DECLG(C=0.6)MINSI 1.00EWSAEPLBLOCAANALYSISWITHBART15>15OFA215PSICBACKFILL5PCTSCOPO.lOECLCBREAKHIRSIBREAKFLOVLIan8OOEcOlCO6~OOEN)a1.00E<a2.OOE+OA0.0~DCDCD~DCDCDFIHE(SEC>CDmCDCDCDCDCDCDFIGURE>4-D-I9BREAKFLOWRATE~~'ECLG(GD0.4)MINSI

I.OOEN)5ggPLBLPgAANALYSISWITHBARTANDNEWPADIS<l5OCAF15PSIGBACl<ILL5PCTSCJP0.6OICLCBR/AKBRCAKfLOMEJd.OAK)a~5C.OOEN)i1.00foOoP.OMRl0.0CICICITIHK<SfClFIGURE14.D-20;BI'I'.%FLOWRATE,DECLG(C0.6)MAXSID 10.000AEPLBhOCA0.DECLGBREAKMIN.1THBikeD15xl5OFA2r75PSIGBACKFILL5PCTSGTPCOREPR.DROP50.000~2$.000le'LI0.0-25.000-50.0000.OOOoOCDCDOCDOOTIME(sec)OOOOOCDCDOOCDCDFIGURE14.D.-21COREPRESSUREDROP,DECLG(C=Or8)MINSI 70.000AEPLBLPCAANAT.YSISWITHBARTANDNEWPADISXI5OFA275PSICBACKFILL5,PCTSGTP0.6OECLGBREAKHINSICOREPR.OROP50.000EL25.000CC0.0-25.000-50.000-70.000C)C)CIED0TINEISEC)FIGURE14.D-22COREPRESSUREDROPDECLG(C0.6)MINSI 10.000AEPLSLOCAANALYSISWITHBARTlSx15OEA215PSIGBACKEILL5rCTSCYP0.1OECLCOREADxlNSlCOREPR.OROP50.00025.0000.0-25.000-50.000-70.000ClClCIClClClClClhltlHE<SEC>ClClmClClFIGURE14.D-23COREPRESSUREDROPDECLG(C~04)MINSID ACPLBLOCA~WALYSISWITllB~TANDllEl5al5OFi2~5BASIC84CRFILL5R(f56lR0.6OCCCGQR(aaCOR[I'R.OROR50.000a25.000E.0.0<<25.000-50.000->0.000CICItlat(rSCCsCImFIGURE14.D-24COREPRESSUREDROPDECLG(CD-0.6)~MXSI 2SOO.OCOOKUtlTTfiCP)O.tPCCLCHliSl32SOHVTCCCSltlOC1VlTfftlATiffPVCVtiPfp'2.'IOCLIPiVC~TCfffffOT100tUkST~C~00fTI11CAN~C~2SfTf+f~n2NN.OCi1SOO.OX4.tn1000.0lJS00.000.0FIGURE14.D-25PEAKCLADTEMPERATURE,DECLG(CD0.8)MINSIIn88TIH(fSCCf8C8~n88At 25000COOKUHlTT.lAf.P)0.6OECLGHIHSI3250HMTCCCSLBLOCAMlTHBARTAHOHCQPAOCOc2~lOCLIOAVC.TfHP.HOTROOBVRST.6.25TTiiPRAT.6.00fT<i2000.0CICITS00.00~J~,.iu0.0'500.JOa.nCICICICIIflCICICICI~~IIICIC3CICIVIC'ICICIFIGURE14.D.-26PEAKCLADTEMPERATURE,DECLG(CD0.6)MINSITII4C-IS(C) 2500.0COOKUHI4llACP10.1OCCLGIIIH5l3250HuTCCCSCBlOCAvllHBARTAHOHfVPAOF0=2..10CCAOAVC.TCNP.HOTROOBUF51~5.15Fl(1PCAa~1,50Clt~)2000.0nCCl500.0Zol000.0500.000.0nnClflHCt5(C)FIGURE14.D-27PEAKCLADTEMPERATURE,DECLG(C0.4)MINSID 2500.0(OINKVklll'>fPiO.bOf((GHAa',f3,'58Hvf((('.t8lO(Avlr~8/Rr1HOHfv~AOF0=8.10()AOAVCffHP.HO>ROO8VP>~S~7$ff<sffAa~Q,"yi1~~82000.0i.CIWj"-o1500.01000.0500.00.0cFIGURE14.D-28PEAKCLADTEMPERATUREDECLG(CD0.6)MAXSI<l~f~if()

f000.0l150.0COOLu~lf)i1ttf0.0OtttClflaslst50XVTttCStOLOCAMlleIi1flaDht'lftaOfOsrl0flUlOftNttIJ>VItBURST~i~OCfftittlN~Cof5f'flailakol500.01750.0Pl000.0Xf50.00ls?50.00=0.0FIGURE14.D-29FLUIDTEMPERATUREDECLG(CD.0.8)HZNSI83'tlatISttl8CSS

2OOO.O!150.CCOOAL:RillLA(Pi0.6OECLG:4IRSl3250HerCCCSLSLOCAMllH8ARlAHORCUPAOF0~2.LQfLUlolCHP(RAFURKOURSl.C.25FllIPCAR.6.00fll~)al500.0l250.04Xl000.0O.xI750.00sno.oo25c.oo0.0C7CICIu.a)C)C3allHClsfClC)~llFIGURE14.D.-30FLUIDTEMPERATUREDECLG(CD"0.6)MINSI 2OOO.OIT50.0COOKUHITITAEPI0~~CECECHIRSI3250HVTECCSiSEOCAVITReARTANONEVPAOF0*2.10FLUIOTEHPERATURE6URST.5.75FTt,)PEA@,7.$0FTI~)lDISOO.O.":O.OC7TSO.OOS00.002SO.OOU.oCDCDCICDCICD~IlTIHE<SECiFIGURE14.D-31FLUIDTEMPERATUREDECLGCD'4)MINSI

,'r,sir'.0l>>.s.gCorervHltl.iveri0.6OE(iCHas'.I3:SOHvfICCNLBiOCAsir~BirrrWHOH(vriprp=&.lpr(plPfgMPfRATIJrrIBgegci~%.>')rr:~afla~6.pcrrs~.~~rpCQll)rip,.ri/X.i;rr.irpaH.IIcy,'if)s')0.0'!i~FIGURE14.D-32FLUIDTEMPERATUREDECLG(Cg0.6)MAXSIrlHf<Sf(>

7000.0AEPLBLOCA0.8DECLGBREAKMINSX'lFLOWRATECOREBOTTOM()TOP,(*)5(}00.02500.00.0('I(.-2500.0-5000.0Ia);(!!--hII-7000.0OOOOOOOOOOOOOOOOOOFIGURE14.0.-33COREFLOW(TOPANDBOTTOM)DECLG(C=0.8)MINSIDflH(IS(C(

)000.0AEPLBLOCAANALYSISWITHBARTANDNEWPAD."-)SX15OEA2TS,PSlGBACKElLL5PCTSGTP0GOECLGBREAKMlNSl2-FLOVRATECORLBOTTOM1)TOP1~)LJCflCD5000.02500.0CDI~v0.0-2500.0-5000.0-)000:0CDCDCDCDCDCVTIME{SEC)CDIDCDCDIDCDCDCDFIGURE14.D.-34COREFLOW(TOPANDBOTTOM)DECLG(CD=0.6)MINSI 1000.0AEf'SLOCAANALYSISWITHBARTlsxl5OfA275PslCSACrfll.L5PCI5Clp0.~OECLCSREArHlk5I7-fLOVRAfECORE607EOHlIlOR~5000.0<<<<:<<tv2500.00.0-2500.0-5000.0-l000.0ClClCICIflHE<<5EC>FIGURE14.Q-35COREFLOW(TOPANDSOTTQY)DECLG(C0.4)MINSI g~4>

t004.0ifPteLOCiFOR)atlMVtVPRAtlkGAgilV5I5VlthSiRtik0kfVPl0t5a]5Oti?t5P5ICSi(atl<a5Ptt5GtP0.6Oft<I;Bifid7-tLQVRAtffQRf80ttOH<ItQP~l~)LJlaoDI5000.08500.0CD0.0.}500.0-5000.0-t000.0CDCItIHftsfCIClmFIGURE14.D-36COREFLOM(TOPANDBOTTOM)DECLG(C~0.6)MAXSID 20.017.515.0lAEPLBLOCA0.8DECLGBREAKMINSI15xl3OFA275PSIGBACKFILL5PCTSGTPgATERLEVE~IE~P'%Y'~W'IDOWNCOMER12.510.07.55.0CORE2.50.0C)TIME(sec)OUlFIGURE14.0-37REFLOODTRANSIENT-CORE&DOWNCOMERWATERLEVELSDECLG(CD0.8)MINSI zo.cooIr.saaAEPCoco.COEC.CAgMI'%$l84RI-RfCLOOOIIVoAOZPS84<ILLl'4E$$U4(IS~IS0<<'gAtf4LfVfL(FTIDOWNCOMERls.ooa!z.soaIcoaaLo1.saaas.oicaCOREz.scoa0.0CICIC7VlC7MIMI($(ClC7IflClCIliFIGURE14.D.-.38REFLOODTRANSIENT-CORE&DOWNCOMERWATERLEVELSDECLG(CD=0.6)MINSI ZO.COGlc.SOOl$.000Afc'oto.c0ft.C8<<ctl'tSI8i4:>fcl003ZcS8<<c,tht'<<f$5t'tcflSalSOcgli<cftcLfVflic<cDowNLDMERlZ.S00lO.OOOc.SOOO~CS.0000C.oRGZ.SOOGO.OCtC7C7CtC7CJCPllccfcSfClFIGURE14.D-'39RFPLOODTRANSIENT-CORF.&DOWNCOMERWATERLEVELSDECLG(CD0.4)MINSI 20.>NO11.'LOOAKP3250HVTC0*0a6OIClG8KHA!51BAR1-RKit000215Sa~lLLPttK55uttKttIvPi015i15OCAvatfttt.Ivfti11iDOWNCOMER15a00012.'50010.000>.50005.0000CORE2.50000.0oOClCIan881IHI{5EC)IFIGURE14.D-40REFLOODTRANSIENT-CORE&DOWNCOMERWATERLEVELSDECI.G(C>=0.6)MAXSI

2.0ARPLHLOCA0.8DECLGBREAKMINSIFLOODRATE(fn/sec)1.751.51.251.0AO0.750.50.250.0oooooooTIME(sec)ooooCVFIGURE14.D-41REFLOODTRANSIENT,COREINLETVELOCITYDECLG(C=0.8)MINSI

)hg4hL~~~V4AEl'O)0~0OfCaC8KMaS!BAR>.-~i<l000Wl'voA3.?~584tliaPa(SSueffbatb"r4<L000RAEllh/S[C)!.?5001.."3."3Vl0.1533IXnnC)0gh(IQ0?'N0.0nnnnnC)C)r)Or'C~<!>ElSf'IFIGURE14.D-42REFLOODTRANSIENT,COREINLETVELOCITYDECLG(C=0.6)NINSI Z.OCTOl.>SCOAEPco*o.~0(.ce~>>lhslei~>-~t>ooooZ150<>ILL>'>>lSS>>>>El'llIS0>A>loooCAT(tlh/SEC)1~SOOO~1.ZMOI.CCOO~e0.>SOOCICI0.$000O.ZSOO0.0C7ciC7nC7C7AlfI>>f>S(C>E3C7C7C7nCPFIGURE14.D.-43REFLOODTRANSIENT,COREINLETVELOCITYDECLG(C=0.4)HINSI

4f<:3'59Hv(0=6.6Ofi<flhH<I-'4<<1-f(fj<QC)/It<]g'<<f55<.<<$<fv<A()I<]+i<4<Lin~4<'tf'<<<'5E(<CIClCIIDFIGURE10,D'-44REFLOOD<TRANSIENTSCOREINLETYEAN/n"B~r,ir,(En=A.t)Fhxhl PUMPEDECCSFLOWREFLOODDECLG(CD=D.B)MINIMUMSl7.57.08.54J~e.ot-5.55.0')h.5h.0C)8.5C3Lal3.0K2.52.01.51.0.5~~~~0SO100150TIME(sec)FIQQRE14~D45PlJMPEDECCSFLOW(REFLOOD)DECLG(CD0~8)MINSI200 8.07.57.0CDe.sMV7PUMPEDECCSFLOWREFLOODDECLG(CD=0.6)MINIMUMSlQs.s5.04.54.0C)8.5CDLLI3.0K2.5Q7Sos1.05010150TIME(sec)FIGURE14.D-46PUMPEDECCSFLOW(REFLOOD)DECLGQC~0.6)MINSID200 i0000mte.aeoPUMPEDECCSFLOWLBEFLOOD).-OECLG(CD0i)HlNS1c)8.0000~a.oooaI-2.00000.0CIC7FIGURE14.D-47PUMPEDECCSFLOW(REFLOOD)DECLG,(C=0.4)MINSI PUMPEDECCSELOWREFLOODDECIG(CO=O.6)MAXIMUMSl50.i00,isOTINE(sec)FIGURE14.0-48PUHPEOECCSFLOW(REFLOOD)OECLG(CD=0.6)MAXSI200250 1000b.atfieiOCiO.e.I.i.tr,Be[A~MIN:,IvlIHBA&lAiiOHfvri0IS~ls<2>spslcBkaalli,i.spalsr.tpl((i>4.Floes8000.6000.4000.2000.0.(lIM(<5['FIGURE14.D-49ACCUNJLATORFLOW(BLOWDOWN)DECLG(CD=0.8)MINSI I.OOErt)iAEPLBLOCAANALYSISWITHBARTANDNEWPADISxl5Ol'4215PSICBACKFILL5PCTKCTP0.6OECLGBREAKHINSIACCUH.FLOMLJ8000.0x6000.0LJEJF000.02000.00.0CDCDCDCDCDCDCDAlTINE<SEC)CDCDCDCDCD~ICDCDFIGURE14.D-50ACCUMULATORFLOW(BLOWDOWN)DECLG(C=0.6)MINSID I.QQEWiAEPLBLOCAANALYSISWITHBARTISXISOFA21SPSIGBACKFILLSPCFSCOPO.aOECLCBBEAhHlk5IACCVH.FLOVLJvBQQQ.QO<oooo.oLJlooo.02000.00.0CIOOOCIClFIHEISECICIOCIOCICICIFICIIRE14.D-51ACCUMIJLATORFLOW(BI.OWDOWN)DECLG(CD04)MIN."I II)~g l.00fN)4AIPIBIOTA'ANALYSTS:WITIIBARTANDNEWPAD.lSllSOCAZ>SPSIGBACKClllSPClSCTP0~COfCCGbbfAaACCVH~KLOVI000.0EBBoIAC000.0lJE1000.0Z000.00.0oooflHf<SfCIFIGURE14.D-52ACCUMULATORFLOW(BLOWDOWN)DECLG(CD0.6)MAXSI Ihe"aIESil."s-)f'e!4)~Ij.,+gCIrrI\IJV--)-r+H.iKIIpI+Lng4JM3<<rD.+])-cRJJV~I3:g~.J.3~I+l)'QjI3T.~I)'T))-3-r)lIj3:.+.qt"I)>~~3c~As~)IIIi.i.<<..)-r~)I'Ig.47+~~-:-t+'fTe~I~~I--OlI3f,,.)pF-,p:.fsyCI~II~<'w~If-;5gled'-'i'3l~~L.-imp,I+'~Ill~-'i-."V.-::-I--.'!-)'IIiI 8.00007.0000D.C.COOKMAX-Sl6.00005.0000tD~4.0000~~3.00002.00001.0000CDCDCDCDCDCDlACDCDCDCDTlHE(SECONDS)CDCDCDCDCDCDCDCUCDCDtACDCDCDCDmFIGURE14.D-54CONTAINMENTPRESSURE,MAXIMUMSI 0II1IILIlij+I1GTc1Ga~C~~1G1G'00.0200.0TtRE(SEC))00.0~oo.o%000FIGURE14.D-55LOWERCOMPARTMENTSTRUCTURALHEATREMOVALRATE,MINIMUMSI S~iIiOCitito~IHo~TINECtEC)fttalpZG~g4,g"56LOIIEhCONtANTNESTSTNUCTUNALIIEAThENOVALhATEMAXIMMSX I0~t~~IeIIIiIIIl$IiIIIItis~~~4~al100>>Cjojo'.Cl00.0PCO.CttnEISKt))CC.C%04.1FIGURE14.D-57HEATREMOVALBYLCDRAINMINIMUMSI 1010~ol1Ho~T1IIECSEC)AH+~FIGURE14.D-58HEATkEll4YAL~YLCORAL%':MAXIM'I.

200.01'ing(5Et!)FIGURE14.D-59HEATREMOVALBYSUMPANDLCSPRAYMINIMJMSI FIGURE14.D<<60HEATREMOUALBYSUMPANDLCSPRAYMAXIMUMSI LI)VI'<0.02GO.O100.0~T!ICE{SCC)FIGURE14.D.-61COMPARTMENTTEMPERATURE,MINIMUMSI

300.00250.00O.C.COOKHAX-SlTEHPERATURE200.00HERCOMPARTMENT150.00~~100.00~50.000PPERCOMPARTM0.0CDCDCDCDCDCDCDCD.CDTtHE(SECONOS)CDCDQCDCDCDCDEUCDCDCDtlatCUCDCDCDCDmFIGURE14.D-62COMPARTMENTTEMPERATURE>>MAXIMUMSI

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