ML17334A898

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)

Text

REGULATOR INFORMATION DISTRIBUTION iTEM(RIDS)ACCESSION NBR:8507310028 DOC~DATE;85/07/23NOTARIZED:

NODOCKET¹FACIL:50-315 DonaldC.CookNuclearPoserPlantiUnitliIndiana~05000315AUTH,NAME,AUTt/ORAFFILIATION ALEXICHiM,P, Indiana8MichiganElectricCo,RECIPNAME.RECIPIENT AFFILIATION DENTONiH~REOfficeofNuclearReactorRegulationi Director

SUBJECT:

Requestschangestoanalysisofrecordisupporting currentTechSpecs.Proposedrevisedanalysisfor3i250MYtlargebreakLOCAanalysisencl'eepaid.DISTRIBUTION CODE:A001DCOPIESRECEIVED:LTR ENCLSIZE':TITLE:,OR Submittal:

GeneralDistribution NaiES:5~-

~@P~7~OL;10/25/74 05000315RECIPIENT IDCODE/NAME NRRORB1BC01INTERNAL; ACRS09ELD/HDS3NRR/DLDIRNRR/DL/TSRG NRR/DSI/RAB RGN3COPIESLTTRENCL776610'111111RECIPIENT IDCODE/NAME ADM/LFMBNRR/DE/MTEB NRR/DL/ORAB NMETBGFIL04COPIESLTTRENCL'011101111EXTERNAL:

24XLPDRNSIC0305111111EGtIGBRUSKEiSNRCPDR021111TOTALNUMBEROFCOPIESREQUIRED:

LTTR28ENCL25

~1I7,~H"IIW'WV""qCIHHII~&C.I'"W~I'I INDIANA8MICHIGANELECTRICCOMPANYP.O.BOXI6631COLUMBUS, OHIO43216July23,1985AEP:NRC:0941 DonaldC.CookNuclearPlantUnitNo.1DocketNo,50-315LicenseNo.DPR-58,CHANGETOANALYSISOFRECORDSUPPORTING FLIMITSFORNESTINGHOUSE FUELMr.HaroldR.Denton,DirectorOfficeofNuclearReactorRegulation U.S.NuclearRegulatory Commission l1ashington, D.C,20555

DearMr.Denton:

Bythisletteranditsattachment, werequestchangestotheanalysisofrecord,whichsupports=the currentTechnical Specifications fortheDonaldC.CookNuclearPlantUnitNo.1.Thisrevisedanalysisissubmitted in.accordance withaMay28,1985telephone callwithmembersofyourstaffconcerning theSlestinghouse BART-MREFLOOD interface

revision, thedetailsofwhichhavebeenreportedtoyourstaffbytlestinghouse ElectricCorporation.

Ourreviewindicates thatnochangeisrequiredtothe=Technical Specifications fortheDonaldC.CookNuclear-PlantUnitNo.1asaresultofthisanalysis.

Theproposedrevisedanalysisiscontained intheattachment, andisofthesameformatasAttachment DtoletterAEP:NRC:0745M, datedAugust23,1984'Reviewofthisanalysisis=neededpriortoinitialentry-intoMode1fortheDonaldC.CookUnit1Cycle9startup.Thisiscurrently scheduled tooccuronAugust18,1985.Theseproposedchangestotheanalysisandtheirinteraction withthecurrentTechnical Specifications will-be-=reviewed bythePlantNuclearSafetyReviewCommittee (PNSRC)andbytheNuclearSafetyandDesignReviewCommittee (NSDRC)priortoUnit1entryintoMode1,Incompliance withtherequirements of10CFR50.91(b)(1),

acopyofthisletteranditsattachments havebeentransmitted toMr,R.C.CallenoftheMichiganPublicServiceCommission.

Pursuantto10CFR170.12(c),

wehaveenclosedanapplication feeof4150.00forthereviewoftheattachedanalysis.

!85073i0028 850723PDRADDCK05000315pPDR.

1t1 P~~Mr.HaroldR.DentonAEP:NRC:0941 Thisdocumenthasbeenpreparedfollowing Corporate procedures whichincorporate areasonable setofcontrolstoinsureitsaccuracyandcompleteness priortosignature bytheundersigned.

Verytrulyyours,M.P.AlexichVicePresident"l IdkF Hr.HaroldR.Dentonw3wAEP:NRC:0941

Attachment:

"D.C.CookUnit13250K/tLargeBreakLOCAAnalysis",

llestinghouse ElectricCorporation, July,1985.cc:JohnE.DolanM.G.Smith,Jr.-BridgmanR.C.CallenG.Bruchmann G.CharnoffNRCResidentInspector

-Bridgman 1I~y4lfk4~tII0l1'l ATTACHMENT TOAEP:NRC:0941 "DC.COOKUNIT13250MWtLARGEBREAKLOCAANALYSIS",

WESTINGHOUSE ELECTRICCORPORATION, JULY,1985.

'I1f')if WESTINGHOUSE PROPRIETARY CLASS314.0.1MajorLOCAAnalysesApplicable toWestinghouse FuelIdentification ofCausesandFreuencClassification Aloss-of-coolant accident(LOCA)istheresultofapiperuptureoftheRCSpressureboundary.

Fortheanalysesreportedhere,amajorpipebreak(largebreak)isdefinedasarupturewithatotalcross-sectional areaequaltoorgreaterthan1.0ft.Thiseventisconsidered anANSCondition IVevent,a2limitingfault,inthatitisnotexpectedtooccurduringthelifetimeofD.C.CookUnit1,butispostulated asaconservative designbasis.rTheAcceptance CriteriafortheLOCAaredescribed in10CFR50.46(10CFR50,46andAppendixKof10CFR501974)('sfollows:(1)1.Thecalculated peakfuelelementcladtemperature isbelowtherequirement of2,200'F.2.Theamountoffuelelementcladdingthatreactschemically withwaterorsteamdoesnotexceed1percentofthetotalamountofZircaloyinthereactor.3.Thecladtemperature transient isterminated atatimewhenthecoregeometryisstillamenabletocooling.Thelocalized cladding~oxidation limitof17percentisnotexceededduringorafterquenching.

4.Thecoreremainsamenabletocoolingduringandafterthebreak.5.Thecoretemperature isreducedanddecayheatisremovedforanextendedperiodoftime,asrequiredbythelong-lived radioactivity remaining inthecore.Thesecriteriawereestablished toprovidesignificant margininemergency corecoolingsystem(ECCS)performance following aLOCA.WASH-1400 (USNRC1975)presentsarecentstudyinregardstotheprobability ofoccurrence (10)ofRCSpiperuptures3132LS-011865 14.D-1 WESTINGHOUSE PROPRIETARY CLASS3SeuenceofEventsandSstems0erationsShouldamajorbreakoccur,depressurization'of theRCSresultsinapressuredecreaseinthepressurizer.

Thereactortripsignalsubsequently occurswhenthepressurizer lowpressuretripsetpointisreached.Asafetyinjection signalisgenerated whentheappropriate setpointisreached.Thesecounter-measureswilllimittheconsequences oftheaccidentintwoways:1.Reactortripandboratedwaterinjection supplement voidformation incausingrapidreduction ofpowertoaresiduallevelcorresponding tofissionproductdecayheat.However,nocreditistakenintheLOCAanalysisfortheboroncontentoftheinjection water.Inaddition, theinsertion ofcontrolrodstoshutdownthereactorisneglected inthelargebreakanalysis.

2.Injection ofboratedwaterprovidesforheattransferfromthecoreandpreventsexcessive cladtemperatures.

Thetimesequenceofeventsfollowing alargebreakLOCAispresented inTable14.0-6.Beforethebreakoccurs,theunitisinanequilibrium condition; thatis,theheatgenerated inthecoreisbeingremovedviathesecondary system.Duringblowdown, heatfromfissionproductdecay,hotinternals andthevessel,continues tobetransferred tothereactorcoolant.Atthebeginning oftheblowdownphase,theentireRCScontainssubcooled liquidwhichtransfers heatfromthecorebyforcedconvection withsomefullydeveloped nucleate'oiling.

Afterthebreakdevelops, thetimetodeparture fromnucleateboilingiscalculated, consistent withAppendixKof10CFR50.Thereafter, the'1)coreheattransferisunstable, withbothnucleateboilingandfilmboilingoccurring.

Asthecorebecomesuncovered, bothturbulent andlaminarforcedconvection andradiation areconsidered ascoreheattransfermechanisms.

TheheattransferbetweentheRCSandthesecondary systemmaybeineitherdirection, depending ontherelativetemperatures.

Inthecaseofcontinued heatadditiontothesecondary system,thesecondary systempressureincreases 14.0-2 1CWESTINGHOUSE PROPRIETARY CLASS3andthemainsteamsafetyvalvesmayactuatetolimitthepressure.

Makeupwatertothesecondary sideisautomatically providedbytheemergency feedwater system.Thesafetyinjection signalactuatesafeedwater isolation signalwhichisolatesnormalfeedwater flowbyclosingthemainfeedwater isolation valves,andalsoinitiates emergency feedwaker flowbystartingtheemergency feedwater pumps.Thesecondary flowaidsinthereduction ofRCSpressure.

WhentheRCSdepressurizes to600psia,-theaccumulators begintoinjectboratedwaterintothereactorcoolantloops.Theconservative assumption ismadethataccumulator waterinjectedbypassesthecoreandgoesoutthroughthebreakuntilthetermination ofbypass.Thisconservatism isagainconsistent withAppendixKof10CFR50.Sincelossofoffsitepower(LOOP)isassumed,theRCPsareassumedtotripattheinception oftheaccident.

Theeffectsofpumpcoastdown areincludedintheblowdownanalysis.

Theblowdownphaseofthetransient endswhentheRCSpressure(initially assumedat2280psia)fallstoavalueapproaching thatofthecontainment atmosphere, Priortoorattheendoftheblowdown, themechanisms thatareresponsible fortheemergency corecoolingwaterinjectedintotheRCSbypassing thecorearecalculated nottobeeffective.

Atthistime(calledend-of-bypass) refillofthereactorvessellowerplenumbegins.Refilliscompleted whenemergency corecoolingwaterhasfilledthelowerplenumofthereactorvessel,whichisboundedbythebottomofthefuelrods(calledbottom-of-core recoverytime).Therefloodphaseofthetransient isdefinedasthetimeperiodlastingfromtheend-of-refill untilthereactorvesselhasbeenfilledwithwatertotheextentthatthecoretemperature risehasbeenterminated.

Fromthelatterstageofblowdownandthenthebeginning-of-reflood, thesafetyinjection accumulator tanksrapidlydischarge boratedcoolingwaterintotheRCS,contributing tothefillingofthereactorvesseldowncomer.

Thedowncomer waterelevation headprovidesthedrivingforcerequiredforthereflooding ofthereactorcore.Thelowheadandhighheadsafetyinjection pumpsaidinthefillingofthedowncomer and,subsequently, supplywatertomaintainafulldowncomer andcompletethereflooding process.tl3tL6-071MS 14.0-3 WESTINGHOUSE PROPRIETARY CLASS3Continued operation oftheECCSpumpssupplieswaterduringlongtermcooling.Coretemperatures havebeenreducedtolongtermsteadystatelevelsassociated withdissipation ofresidualheatgeneration.

Afterthewaterleveloftheresidualwaterstoragetank(RHST)reachesaminimumallowable value,coolantforlong-term coolingofthecoreisobtainedbyswitching tothecoldrecirculation phaseofoperation inwhichspilledboratedwaterisdrawnfromtheengineered safetyfeatures(ESF)containment sumpsbyihelowheadsafetyinjection (residual heatremoval)pumpsandreturnedtotheRCScoldlegs.Thecontainment spraysystemcontinues tooperatetofurtherreducecontainment pressure.

Approximately 24hoursafterinitiation oftheLOCA,theECCSisrealigned tosupplywatertotheRCShotlegsinordertocontroltheboricacidconcentra-tioninthereactorvessel.CoreandSstemPerformance Mathematical Model:Therequirements ofanacceptable ECCSevaluation modelarepresented inAppendixKof10CFR50(FederalRegister1974).LargeBreakLOCAEvaluation ModelTheanalysisofalargebreakLOCAtransient isdividedintothreephases:(1)blowdown, (2)refill,and(3)reflood.Therearethreedistincttran-sientsanalyzedineachphase,including thethermal-hydraulic transient intheRCS,thepressureandtemperature transient withinthecontainment, andthefuelandcladtemperature transient ofthehottestfuelrodinthecore.Basedontheseconsiderations, asystemofinterrelated computercodeshasbeendeveloped fortheanalysisoftheLOCA.Adescription ofthevariousaspectsoftheLOCAanalysismethodology isgivenbyBordelon, Massie,andZordan(1974).Thisdocumentdescribes themajorphenomena modeled,theinterfaces amongthecomputercodes,andthefeaturesofthecodeswhichensurecompliance withtheAcceptance Criteria.

14.0-4 WESTINGHOUSE PROPRIETARY CLASS3TheSATAN-VI,

WREFLOOD, BARTandLOCTA-IVcodes,whichareusedintheLOCAanalysis, aredescribed indetailbyBordelon, etal.(1974);Kelly,etal.(5).(1974);Young,etal.(1980)(';BordelonandMurphy(1974)(';andBordelon, (9).(16).(41etal.(1974).Codemodifications arespecified inReferences 2,7,13,(6)and17,Thesecodesassessthecoreheattransfergeometryanddetermine ifthecoreremainsamenabletocoolingthroughout andsubsequent totheblow-down,refill,andrefloodphasesoftheLOCA.TheSATAN-VIcomputercodeanalyzesthethermal-hydraulic transient intheRCSduringblowdownandtheWREFLOODcomputercodecalculates thistransient duringtherefillandrefloodphasesoftheaccident.

TheLOTICcomputercode,described byHsiehandRaymundinWCAP-8355 (1975)andWCAP-8345 (1974),calculates thecontain-mentpressuretransient.

Thecontainment pressuretransient isinputtoWREFLOODforthepurposeofcalculating therefloodtransient.

TheLOCTA-IVcomputercodecalculates thethermaltransient ofthehottestfuelrodduringthethreephases.TheRevisedPadFuelThermalSafetyModel,described inReference 15,generates theinitialfuelrodconditions inputtoLOCTA-IV.

SATAN-VIcalculates theRCSpressure,

enthalpy, density,andthemassandenergyflowratesintheRCS,aswellassteamgenerator energytransferbetweentheprimaryandsecondary systemsasafunctionoftimeduringtheblowdownphaseoftheLOCA.SATAN-VIalsocalculates theaccumulator watermassandinternalpressureandthepipebreakmassandenergyflowratesthatareassumedtobeventedtothecontainment duringblowdown.

Attheendofthe.blowdown phase,thesedataaretransferred totheWREFLOODcode.Also,attheend-of-blowdown, themassendenergyreleaseratesduringblowdownareinputtotheLOTICcodeforuseinthedetermination ofthecontainment pressureresponseduringthisfirstphaseoftheLOCA.Additional SATAN-VIoutputdatafromtheend-of-blowdown, including thecoreinletflowrateandenthalpy, thecorepressure, andthecorepowerdecaytransient, areinputtotheLOCTA-IVcode.WithinputfromtheSATAN-VIcode,WREFLOODusesasystemthermal-hydraulic modeltodetermine thecorefloodingrate(thatis,therateatwhichcoolantentersthebottomofthecore),thecoolantpressureandtemperature, andthequenchfrontheightduringtherefloodphaseoftheLOCA.WREFLOODalsocalculates themassandenergyflowadditiontothecontainment throughthe14.D-5 WESTINGHOUSE PROPRIETARY CLASS3break.Refloodconditions aresuppliedtotheBART.codewhichperformstheheattransferCalculation fortheaveragefuelchannelinthehotassemblyusingamechanistic coreheattransfermodel.Thisinformation isthenusedbyLOCTA-IVtocalculate thefuelcladtemperature andmetal-water reactionofthehottestrodinthecore.Thelargebreakanalysiswasperformed withtheDecember1981versionoftheEvaluation Modelmodifiedtoincorporate theBARTcomputercode.InputParameters andInitialConditions:

Theanalysispresented inthissectionwasperformed withareactorvesselupp'erheadtemperature equaltotheRCShotlegtemperature.

Thebasesusedtoselectthenumerical valuesthatareinputparameters totheanalysishavebeenconservatively determined fromextensive sensitivity studies(Westinghouse 1974;Salvatori 1974(';Johnson,Massie,andThompson(1Z).(11)1975).Inaddition, therequirements ofAppendixKregarding specificmodel(8)featuresweremetbyselecting modelswhichprovideasignificant overallconservatism intheanalysis.

Theassumptions whichweremadepertaintotheconditions ofthereactorandassociated safetysystemequipment atthetimethattheLOCAoccurs,andincludesuchitemshsthecorepeakingfactors,thecontainment

pressure, andtheperformance oftheECCS.Decayheatgenerated throughout thetransient isalsoconservatively calculated.

AmeetingwasheldattheWestinghouse Licensing OfficeinBethesdaonDecember17,1981betweenmembersoftheU.S.NuclearRegulatory Commission andmembersoftheWestinghouse NuclearSafetyDepartment todiscusstheimpactofmaximumsafetyinjection onthelargebreakECCSanalysisonagenericbasis.Furtherdiscussion ofthisissueisprovidedinaletterfromE.P.Rahe,ManagerofWestinghouse NuclearSafetyDepartment, toRobertL.TedescooftheU.S,NuclearRegulatory Commission

.Abriefdescription (14)ofthisissueisgivenbelow.Westinghouse ECCSanalysescurrently assumeminimumsafeguards forthesafetyinjection flow,whichminimizes theamountofflowtotheRCSbyassuming14.0-6 d~'ESTINGHOUSE PROPRIETARY CLASS3maximuminjection lineresistances, degradedECCSpumpperformance, andthelossofoneresidualheatremoval(RHR)pumpasthemostlimitingsinglefailure.Thisisthelimitingsinglefailureassumption whenoffsitepowerisunavailable formostWestinghouse plants.However,forsomeWestinghouse plants,including D.C.CookUnit1,thecurrentnatureoftheAppendixKECCSevaluation modelsissuchthatitmaybemorelimitingtoassumethemaximumpossibleECCSflowdelivery.

Inthatcase,maximumsafeguards, whichassumeminimuminjection lineresistances, enhancedECCSpumpperformance, andnosinglefailure,resultinthehighestamountofflowdelivered totheRCS.CurrentLOCAanalysisforD.C.CookUnit1hasdemonstrated thatmaximumsafeguards assumptions resultinthehighestpeakcladtemperature.

Therefore, theworstbreakfor0.C.CookUnit1(CD=0.6)wasreanalyzed, assumingmaximumsafeguards.

Results:BasedontheresultsoftheLOCAsensitivity studies(Westinghouse 1974Salvatori 1974';Johnson,Massie,andThompson1975)thelimiting(11).largebreakwasfoundtobethedoubleendedcoldlegguillotine (DECLG).Therefore, onlytheDECLGbreakisconsidered inthelargebreakECCSperformance analysis.

Calculations wereperformed forarangeofMoodybreakdischarge coefficients.

Theresultsofthesecalculations aresummarized inTables14.0-5and14.D-6.Thecontainment datausedtogeneratetheLOTICbackpressure transient areshowninTable14.D-l.Themassandenergyreleasedatafortheminimumandmaximumsafeguards casesareshowninTables14.0-2and14.0-3,respectively.

Nitrogenreleaseratestothecontainment aregiveninTable14.0-4.Figures14.D-1through14.0-64presentthetransients fortheprincipal parameters forthebreaksizesanalyzed.

Thefollowing itemsarenoted:~di.1111d<<*dd~211dtemperature),

bothonthehottestfuelrod(hotrod):14.0-7 1Ie "WESTINGHOUSE PROPRIETARY CLASS31.fluidquality,2.massvelocity; 3.heattransfercoefficient.

Theheattransfercoefficient showniscalculated bytheLOCTA-IVcode.Fiures14.0-13throuh14.0.24Thesystempressureshownisthecalculated pressureinthecore.Theflowratefromthebreakisplottedasthesumofbothendsfortheguillotine breakcases.Thecorepressuredropshownisfromthelowerplenum,nearthecore,totheupperplenumatthecoreoutlet.Fiures14.0-25throuh14.0-36Thesefiguresshowthehotsp'otcladtemperature transient andthecladtemperature transient attheburstlocation.

Thefluidtemperature shownisalsoforthehotspotandburstlocation.

Thecoreflow(topandbottom)isalsoshown.7th~hFiures14.D-45throuh14.0-52ThesefiguresshowtheEmergency CoreCoolingSystemflowforallofthecasesanalyzed.

Asdescribed earlier,theaccumulator deliveryduringblowdownisdiscarded untiltheendofbypassiscalculated.

Accumulator flow,however,isestablished intherefillandtherefloodcalculations.

Theaccumulator flowassumedisthesumofthatinjectedintheintactcoldlegs.Fiures14.D-53throuh14,0-54Thecontainment pressuretransient usedintheanalysisisalsoprovidedfortheminimumandmaximumSIcases,Fiures14.0-55and14.0-60Thesefiguresshowtheheatremovalratesoftheheatsinksfoundinthelowercompartment andtheheatremovalbythelowercontainment drain,andtheheatremovalbythesumpandLCsprays(minimumandmaximumSIcases).14.0-8 WESTINGHOUSE PROPRIETARY CLASS3Fiures14.D-61throuh14.0-64Thesefiguresshowthetemperature transients inboththeupperandlowercompartments ofthecontainment andflowfromtheuppertolowercompartments.

Totalheatremovalinthelowercompartment isthesumofalltheheatremovalratesshown(forminimumandmaximumSIcases).Themaximumcladtemperature calculated foralargebreakis2154'F,whichislessthantheAcceptance Criterialimitof2200'F.Themaximumlocalmetal-waterreactionis6.46percent;whichiswellbelowtheembrittlement limitof17percentasrequiredby10CFR50.46.Thetotalcoremetal-water reactionislessthan0.3percentforallbreaks,ascomparedwiththe1percentcriterion of10CFR50.46.Thecladtemperature transient isterminated atatimewhenthecoregeometryisstillamenabletbcooling.Asaresult,thecoretemperature willcontinuetodropandtheabilitytoremovedecayheatgenerated inthefuelforanextendedperiodoftimewillbeprovided.

3l32L:507166514.0-9

'

WESTINGHOUSE PROPRIETARY CLASS3References forSection14.0-11."Acceptance CriteriaforEmergency CoreCoolingSystemforLightWaterCooledNuclIearPowerReactors,"

10CFR50.46andAppendixKof10CFR50,FederalReister1974,Volume39,Number3.2.Rahe,E.P.(Westinghouse),

lettertoJ.R.Miller(USNRC),LetterNo.NS-EPRS-2679, November1982.3.Hsieh,T.,andRaymund,M.,"LongTermIceCondenser Containment LOTICCodeSupplement 1,"WCAP-8355, Supplement 1,May1975,WCAP-8345 (Proprietary),

July1974.4.Bordelon, F.M.etal.,"LOCTA-IV Program:Loss-of-Coolant Transient Analysis,"

WCAP-8301 (Proprietary) andWCAP-8305 (Non-proprietary),

1974.5.Bordelon, F.M.etal.,"SATAN-VI Program:Comprehensive Space,TimeDependent AnalysisofLoss-of-Coolant,"

WCAP-8302 (Proprietary) andWCAP-8306 (Non-proprietary),

1974.6.Bordelon, F,M.;Massie,H.W.;andZordan,T.A.,"Westinghouse ECCSEvaluation Model-Summary,"

WCAP-8339, 1974.7.Rahe,E.P.,"Westinghouse ECCSEvaluation Model,1981Version,"

WCAP-9220-P-A (Proprietary Version),

WCAP-9221-P-A (Non-proprietary version),

Revision1,1981.8.Johnson,W.J.;Massie,H.W.;andThompson, C.M.,"Westinghouse ECCS-FourLoopPlant(17x17)Sensitivity Studies,"

WCAP-8565-P-A (Proprietary) andWCAP-8566-A (Non-proprietary),

1975.9.Kelly,R.D.etal.,"Calculational ModelforCoreReflooding AfteraLoss-of-Coolant Accident(WREFLOOD Code),"WCAP-8170 (Proprietary) andWCAP-8171 (Non-proprietary),

1974.14.D-10 I

WESTINGHOUSE PROPRIETARY CLASS310.U.S.Nuc1earRegulatory Commission 1975,"ReactorSafetyStudy-AnAssessment ofAccidentRisksinU.S.Commercial NuclearPowerPlants,"HASH-1400, NUREG-75/014.

11.Salvatori, R.,"Hestinghouse ECCS-PlantSensitivity Studies,"

HCAP-8340 (Proprietary) andWCAP-8356 (Non-proprietary),

1974.12."Westinghouse ECCS-Evaluation ModelSensitivity Studies,"

WCAP-8341 (Proprietary) andMCAP-8342 (Non-proprietary),

1974.13.Bordelon, F.M.,etal.,"Westinghouse ECCSEvaluation Model-Supplementary Information,"

WCAP-8471 (Proprietary) andHCAP-8472 (Non-proprietary),

1975.14.Rahe,E.P.(Westinghouse).

LettertoRobertL.Tedesco(USNRC),LetterNo.NS-EPR-2538, December1981.15."Westinghouse RevisedPADCodeThermalSafetyModel,"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)"Acceptance forReferencing ofLicensing TopicalReportHCAP-10484(P)/10485(NP),

'SpacerGridHeatTransferEffectsDuringReflood,'"

LettertoE.P.Rahe(Westinghouse),

June21,1984.18.SpecialReportNS-NRC-85-3025 (NP),"BART-HREFLOOD InputRevision".

3132L507'I88514.D-11 WESTINGHOUSE PROPRIETARY CLASS3TABLE14.D-lLARGEBREAKCONTAINMENT DATA(ICECONDENSER CONTAINMENT)

NETFREEVOLUME(IncludesDistribution BetweenUpper,Lower.andDead-Ended Compartments)

UC746,829ftLC249,446DE,116,168IC122,400InitialConditions PressureTemperature fortheUpper,LowerandDead-Ended Compartments RHSTTemperature ServiceHaterTemperature Temperature OutsideContainment InitialSprayTemperature UCLCDE14.7psia100'F120'F120'F70'F40'F-7'F70'FSpraySystemRunoutFlowforaSprayPumpNumberofSprayPumpsOperating Post-Accident Initiation ofSpraySystemDistribution oftheSprayFlowtotheUpperandLowerCompartments LCUC3600gpm240secs2835gpm"4365gpmDeckFanPost-Accident Initiation ofDeckFansFlowRatePerFan600secs39,000cfmperfanHydrogenSkimmerSystemFlowRate2,800cfmperfanAssumedSprayEfficiency ofHaterfromIceCondenser Drains100%14.0-12 I1e WESTINGHOUSE PROPRIETARY CLASS3TABLE14.D-1(continued)

STRUCTURAL HEATSINKSComartmentAreaft2Thickness ftMaterial1.LC2.LC3.LC4.LC5.LC6.LC7.LC8.LC9.LC10.LC.11.LC12.LC13.UC14.UC15.UC16.UC17.UC18.UC19.UC12,10511,70065,9805,4814,73528914,6903,4395,7754,9667,0132,45737829,7728,03342029,33034,1252100.0469/2.0 2.01.350.08330.011470.250.00790.15610.0090.00960.0370.0334.1667/.0365

.0092,0209.00521.470,0469/2.0

.0052steel/concrete concreteconcretesteelsteelleadsteelsteelstee'.steelsteelsteelsteel/concrete steelsteelsteelconcretesteel/concrete steelUC:UpperCompartment LC:LowerCompartment OE:Dead-Ended Compartment IC:IceCondenser Compartment 3132LO-07'I6$

514.0-13 A<WESTINGHOUSE PROPRIETARY CLASS2TABLE14.0-2MASSANOENERGYRELEASERATESMINIMUMSITIME(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$2TCOC.1775K~3133Lb07166114.0-14 WESTINGHOUSE PROPRIETARY CLASS3TABLE14.D-3MASSANOENERGYRELEASERATESMAXIMUMSIT(eE(src].200OE+01.4003Ei01.6000E+01.8003fi0$.$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

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.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

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.2072fi06 lllltcd011SS514.0-15

1,~WESTINGMOUSE PROPRIETARY CLASS3TABLE14.0-4NITROGENMASSANDENERGYRELEASERATESTIME(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

~))WESTINGHOUSE PROPRIETARY CLASS3TABLE14.0-5LARGEBREAKResultsDECLGCD=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<0.343.205.75Calculation LicensedCorePower(MHT)102%ofPeakLinearPower(kw/ft)102%ofPeakingFactor(atLicenseRating)Accumulator HaterVolume(ft)perAccumulator 325014.0982.10950CycleAnalyzedCycle83'I32L6-071645 14.0-17 JI 4'WESTINGHOUSE PROPRIETARY CLASS3TABLE14.0-6LARGEBREAKTIMESEQUENCEOFEVENTSSTARTReactorTripSignalSafetyInjection SignalAccumulator Injection EndofBlowdownBottomofCoreRecoveryAccumulator EmptyPumpInjection MinSIDECLGCD=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 "200.0000 eeIII;~: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-9HEATTRANSFERCOEFFICIENT DECLG(C~0.8)MINSI II 60u.oo5oo.noF00.00300.00200.00CooaUH111(AKP)0.6OKCltHIHSI3250HV1ECCSLBLOCAVI1HBAR1AHOHCVPAOf0<2.10HCA11RAHS.CO(ff)CICN1 BURSTe6.25f11IPCAx~6.00f1'I60.00050.00010.00030.00020.0006.00005.ooooi.00003.00002.nono1.0000oOCICI1)HK<SEC'IFIGURE14.D-10))EATTRANSFERCOEFFICIENT DECLG(CD0.6)NINSI I

Yf,on.ooSOO.OO<<QO00xTOO.<<<)I<<<"-e00.00COOKUHIII<ACP>0.~OfCLGHIHSI32/0H)<TfCCSLBLOCAMITHBARTAHDHCMPAOf0Z.IO><CATTRAHS.COffflCICHT BURST~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-11IIEATTRANSFERCOEFFICIENT DECLG(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-12HEATTRANSFERCOEFFICIENT DECLG(C~0~6)MAXSID)IMfCIC)Ve IIP>EPEPiPCWP.BOE(<CB&EkaHlk',lVllHBabelWHOHEvPAOISIlSOia,'VSvblCBit.atilt SPClSClPPAESSVRECOREBPllUI4Il1UPgI~I~pIp~0lal~PO.P1PUU.U,caqPU.pCIlIHEUSE(>~~C'IFIGURE14.D-13COREPRESSURE'ECLG CD0.8)MINSI 2500.0AEPLBLOCA.ANALYSIS WZTNgARTANDHplj.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.BART ANDNEWPAD15KI5OfA215PSIGBACKfILL5PCTSGTP0~6OECLCBREAKHINSIOREAKfLOUcnB.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$.000le'LI0.0-25.000-50.0000.OOOoOCDCDOCDOOTIME(sec)OOOOOCDCDOOCDCDFIGURE14.D.-21COREPRESSUREDROP,DECLG(C=Or8)MINSI 70.000AEPLBLPCAANAT.YSIS WITHBARTANDNEWPADISXI5OFA275PSICBACKFILL5,PCTSGTP0.6OECLGBREAKHINSICOREPR.OROP50.000EL25.000CC0.0-25.000-50.000-70.000C)C)CIED0TINEISEC)FIGURE14.D-22COREPRESSUREDROPDECLG(C0.6)MINSI 10.000AEPLSLOCAANALYSISWITHBARTlSx15OEA215PSIGBACKEILL5rCTSCYP0.1OECLCOREADxlNSlCOREPR.OROP50.00025.0000.0-25.000-50.000-70.000ClClCIClClClClClhltlHE<SEC>ClClmClClFIGURE14.D-23COREPRESSUREDROPDECLG(C~04)MINSID ACPLBLOCA~WALYSISWITllB~TANDllEl5al5OFi2~5BASIC84CRFILL5R(f56lR0.6OCCCGQR(aaCOR[I'R.OROR50.000a25.000E.0.0<<25.000-50.000->0.000CICItlat(rSCCsCImFIGURE14.D-24COREPRESSUREDROPDECLG(CD-0.6)~MXSI 2SOO.OCOOKUtlTTfiCP)O.tPCCLCHliSl32SOHVTCCCSltlOC1VlTfftlATiffPVCVtiPfp'2.'IOCLIPiVC~TCfffffOT100tUkST~C~00fTI11CAN~C~2SfTf+f~n2NN.OCi1SOO.OX4.tn1000.0lJS00.000.0FIGURE14.D-25PEAKCLADTEMPERATURE, DECLG(CD0.8)MINSIIn88TIH(fSCCf8C8~n88At 25000COOKUHlTT.lAf.P)0.6OECLGHIHSI3250HMTCCCSLBLOCAMlTHBARTAHOHCQPAOCOc2~lOCLIOAVC.TfHP.HOT ROOBVRST.6.25TTiiPRAT.6.00fT<i2000.0CICITS00.00~J~,.iu0.0'500.JOa.nCICICICIIflCICICICI~~IIICIC3CICIVIC'ICICIFIGURE14.D.-26PEAKCLADTEMPERATURE, DECLG(CD0.6)MINSITII4C-IS(C) 2500.0COOKUHI4llACP10.1OCCLGIIIH5l3250HuTCCCSCBlOCAvllHBARTAHOHfVPAOF0=2..10CCAOAVC.TCNP.HOT ROOBUF51~5.15Fl(1PCAa~1,50Clt~)2000.0nCCl500.0Zol000.0500.000.0nnClflHCt5(C)FIGURE14.D-27PEAKCLADTEMPERATURE, DECLG(C0.4)MINSID 2500.0(OINKVklll'>fPiO.bOf((GHAa',f3,'58Hvf((('.t8lO(Avlr~8/Rr1HOHfv~AOF0=8.10()AOAVCffHP.HO>ROO8VP>~S~7$ff<sffAa~Q,"yi1~~82000.0i.CIWj"-o1500.01000.0500.00.0cFIGURE14.D-28PEAKCLADTEMPERATURE DECLG(CD0.6)MAXSI<l~f~if()

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

2OOO.O!150.CCOOAL:RillLA(Pi0.6OECLG:4IRSl3250HerCCCSLSLOCAMllH8ARlAHORCUPAOF0~2.LQfLUlolCHP(RAFURK OURSl.C.25FllIPCAR.6.00fll~)al500.0l250.04Xl000.0O.xI750.00sno.oo25c.oo0.0C7CICIu.a)C)C3allHClsfClC)~llFIGURE14.D.-30FLUIDTEMPERATURE DECLG(CD"0.6)MINSI 2OOO.OIT50.0COOKUHITITAEPI0~~CECECHIRSI3250HVTECCSiSEOCAVITReARTANONEVPAOF0*2.10FLUIOTEHPERATURE 6URST.5.75FTt,)PEA@,7.$0FTI~)lDISOO.O.":O.OC7TSO.OOS00.002SO.OOU.oCDCDCICDCICD~IlTIHE<SECiFIGURE14.D-31FLUIDTEMPERATURE DECLGCD'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-32FLUIDTEMPERATURE DECLG(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-FLOVRATE CORLBOTTOM1)TOP1~)LJCflCD5000.02500.0CDI~v0.0-2500.0-5000.0-)000:0CDCDCDCDCDCVTIME{SEC)CDIDCDCDIDCDCDCDFIGURE14.D.-34COREFLOW(TOPANDBOTTOM)DECLG(CD=0.6)MINSI 1000.0AEf'SLOCA ANALYSISWITHBARTlsxl5OfA275PslCSACrfll.L 5PCI5Clp0.~OECLCSREArHlk5I7-fLOVRAfE CORE607EOHlIlOR~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-tLQVRAtf fQRf80ttOH<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'IDOWNCOMER 12.510.07.55.0CORE2.50.0C)TIME(sec)OUlFIGURE14.0-37REFLOODTRANSIENT

-CORE&DOWNCOMER WATERLEVELSDECLG(CD0.8)MINSI zo.cooIr.saaAEPCoco.COEC.CAgMI'%$l84RI-RfCLOOO IIVoAOZPS84<ILLl'4E$$U4(IS~IS0<<'gAtf4LfVfL(FTIDOWNCOMER ls.ooa!z.soaIcoaaLo1.saaas.oicaCOREz.scoa0.0CICIC7VlC7MIMI($(ClC7IflClCIliFIGURE14.D.-.38REFLOODTRANSIENT

-CORE&DOWNCOMER WATERLEVELSDECLG(CD=0.6)MINSI ZO.COGlc.SOOl$.000Afc'oto.c 0ft.C8<<ctl'tSI 8i4:>fcl003ZcS8<<c,tht'<<f$5t'tcflSalSOcgli<cftcLfVflic<cDowNLDMER lZ.S00lO.OOOc.SOOO~CS.0000C.oRGZ.SOOGO.OCtC7C7CtC7CJCPllccfcSfClFIGURE14.D-'39RFPLOODTRANSIENT

-CORF.&DOWNCOMER WATERLEVELSDECLG(CD0.4)MINSI 20.>NO11.'LOOAKP3250HVTC0*0a6OIClG8KHA!51BAR1-RKit000 215Sa~lLLPttK55uttK ttIvPi015i15OCAvatfttt.Ivfti11iDOWNCOMER 15a00012.'50010.000>.50005.0000CORE2.50000.0oOClCIan881IHI{5EC)IFIGURE14.D-40REFLOODTRANSIENT

-CORE&DOWNCOMER WATERLEVELSDECI.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<l 000Wl'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>oooo Z150<>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(f j<QC)/It<]g'<<f 55<.<<$<fv<A()I<]+i<4<Lin~4<'tf'<<<'5E(<CIClCIIDFIGURE10,D'-44REFLOOD<TRANSIENTS COREINLETYEAN/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-49ACCUNJLATOR FLOW(BLOWDOWN)

DECLG(CD=0.8)MINSI I.OOErt)i AEPLBLOCAANALYSISWITHBARTANDNEWPADISxl5Ol'4215PSICBACKFILL5PCTKCTP0.6OECLGBREAKHINSIACCUH.FLOMLJ8000.0x6000.0LJEJF000.02000.00.0CDCDCDCDCDCDCDAlTINE<SEC)CDCDCDCDCD~ICDCDFIGURE14.D-50ACCUMULATOR FLOW(BLOWDOWN)

DECLG(C=0.6)MINSID I.QQEWiAEPLBLOCAANALYSISWITHBARTISXISOFA21SPSIGBACKFILLSPCFSCOPO.aOECLCBBEAhHlk5IACCVH.FLOVLJvBQQQ.QO<oooo.oLJlooo.02000.00.0CIOOOCIClFIHEISECICIOCIOCICICIFICIIRE14.D-51ACCUMIJLATOR FLOW(BI.OWDOWN)

DECLG(CD04)MIN."I II)~g l.00fN)4AIPIBIOTA'ANALYSTS:WITII BARTANDNEWPAD.lSllSOCAZ>SPSIGBACKClllSPClSCTP0~COfCCGbbfAaACCVH~KLOVI000.0EBBoIAC000.0lJE1000.0Z000.00.0oooflHf<SfCIFIGURE14.D-52ACCUMULATOR FLOW(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'3 l~~L.-imp,I+'~Ill~-'i-."V.-::-I--.

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PRESSURE, MAXIMUMSI 0II1IILIlij+I1GTc1Ga~C~~1G1G'00.0200.0TtRE(SEC))00.0~oo.o%000FIGURE14.D-55LOWERCOMPARTMENT STRUCTURAL HEATREMOVALRATE,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

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

300.00250.00O.C.COOKHAX-SlTEHPERATURE 200.00HERCOMPARTMENT 150.00~~100.00~50.000PPERCOMPARTM0.0CDCDCDCDCDCDCDCD.CDTtHE(SECONOS)

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MAXIMUMSI

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