ML17319B048
ML17319B048 | |
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Site: | Cook ![]() |
Issue date: | 09/10/1981 |
From: | INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
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{{#Wiki_filter:D,C.COOKPLANTUNITNO.2REACTORBUILDINGCONTAINMENTINTEGRATEDLEAKRATETESTAPRIL30-MAY4,1981INDIANA8MICHIGANELECTRICCOMPANY9888109i504378i09i0PDRADOCK05000315PDR
D.C.COOKPLANTUNITNO.2CONTAINMENTINTEGRATEDLEAKRATETESTAPRIL30-MAY4,1981TABLEOFCONTENTSSection1.0Introduction~Pae2.0ILRTAcceptanceCriteria3.0ILRTResults4.0ConductofTest4.1OrganizationofTest4.2LogofTimeandEvents5.0TestInstrumentationandEquipment5.1TableofInstruments5.2InstrumentSpecifications5.3SensorLocations5.4InstrumentErrorAnalysis5.5PressurizationApparatus1010111212146.0ContainmentModelandLeakRateCalculations146.1VolumelleighingFactors6.2ContainmentPressureandVaporPressure6.3ContainmentTemperatures6.4StatisticalDeterminationoftheLeakRate6.5UpperConfidenceLimit6.6LeakRateComputerProgram,'LRTEST'517171819227.0'LRT'rogramPrintout24Pagei TableofContentsContinued.Section8.0DataAnalysisandSummaries8.1GraphicalAnalysis8.2ProgramSummaries~Pae3232359.0LocalLeakTestProgram9.1PastTestResultsSummary9.2l1ay'1981LocalLeakTestResults44445310.0ReferencesPageii 1.0IntroductionThefirstperiodicIntegratedLeakRateTest(ILRT)fortheDonaldC.CookNuclearPlant-Unit2reactorcontainmentwassuccessfullycompletedonMay4,1981bypersonnelofIndiana8MichiganElectricCompany(18M).TheILRTwasperformedasspecifiedinsurveillancetestprocedure12THP4030STP.202,Rev.3andincompliancewithAmericanNationalStandard-ANSIN45.4-1972,'LeakageRateTestingofContainmentStruc-turesforNuclearReactors'ndCodeofFederalRegulations10CFR50AppendixJ-'PrimaryReactorContainmentLeakageTestingforHaterCooledPowerReactors'.Theabsolutetestmethodwasusedonthe3com-partmentcontainmentmodeldevelopedforboththeUnit1andUnit2PreoperationalIntegrated"LeakRateTests.Datawascollectedathalfhourintervalsovera24hourtestperiod.Thisdatawasusedto.calculatethenormalizedweightoftheinitialdryairmassremaininginthecontainmentateachhalfhourinterval.ThemeasuredTypeAleakagerate,Lam,istheslopeofastraightlinedeterminedforalinearleast-squaresfitofthecalculatednormalizedweightvs.time.2.0ILRTAccetanceCriteriaTheUnit2TechnicalSpecificationsandSection5oftheFinalSafetyAnalysisReport(FSAR)definethecontainmentallowableleakage,La,as0.25percentbyweightofthecontainmentairper24hoursatapressure,Pa,of12.0psig.Themeasuredleakagerate.Lam,mustbedemonstratedtobelessthan0.75La,(0.1875'Awt/day)asrequiredby10CFR50AppendixJ.Inaddition,theaccuracyoftheleakagemeasurementmustbeverifiedbyperformingasupplementaltest,theresultsofwhichareacceptableprovidedthedifferencebetweenthesupplementaltestresultsandtheTypeAresultsiswithin'.25La'(0.'0625/wt/day).AsspecifiedinSection5.0ofD;C.CookPlantSurveillanceTestProcedure12THP4030STP.202andinaccordancewith10CFR50AppendixJSectionIII-A,'LeakageTest-Requirements,TypeA'ests',thetestwasconsideredacceptablewhenthefollowingcriteriahadbeenmet:2.1Theleakrate,asdeterminedbythe95%upperconfidencelimitoftheleastsquaresline,Lam/955hasconvergedtoan'acceptablelevel:'Lam/95K(0.75La-TypeCLeakagePenalty}2.2ThedurationoftheILRThasexceededtheminimumof12hou'rsandthedifferencebetweenthe954upperconfidenceleakagelimitandtheleakagerateitselfdoesnotexceed,0.0625/wt/dayinthemostrecentdataset.Page1
2.3Theupperconfidencelevelleakageandthemeasuredleakagedonotshowanegativetrendoverthelastfourdataruns.TheSupplementalTestwasconsideredacceptablewhenthe'followingcriteriaweremet:2.4ThedurationoftheSupplementalTestmeetsorexceedstheminimumof6hours.-2.5Thesumoftheimposedleak,L,andtheleakagemeasured~duringtheTypeAtest,L,i3within+0.25Lofthecompositeleakage,L,meNuredinthesupplementaltest.(L+L-0.25L)<L<(L+L+0.25L)ThecriteriausedforthisIntegratedLeakRateTestismorestringentthanthatspecifiedin10CFR50AppendixJ.ThesecriteriaincorporateadditionaltestcommitmentsmadebyD.C.CooktotheNuclearRegulatoryCommission.These.additionalcommitmentsareembodiedinaresponsetoguestion22.14ofAppendixgo'ftheD.C.CookNuclearPlantUnit2FSAR.3.0ILRTResults3.1=LeakageRateSummary:DurationofTypeATest:24hoursDurationofSupplementalTest:6hoursA.ILRT'TypeA'eakRate,LamB.ILRT'TypeA'55UpperConfidenceLimitLeakRate,Lam/95%C.TypeCLeakagePenaltyNeasuredLeakage*'wt24hours-0.05287-0.05748-0.015975AllowableLeakage*Xwt/24hours-0.1875**0.75La-TypeCLeakagePenalty++=-0.1875-(-0.015975)=-0.17153N/AD.ImposedLeakRate,Lo-0.200605La<Lo<La-0.125<Lo<-0.25E.SupplcmentalTest=CompositeLeakage,Lc-0.24631N/AF.SupplementalTest-Correlationam(LcLo)0.00716Lam-(LcLo)<.25La**Lam-(Lc"Lo)<~0625Page2
Theslopeofthelinearregressionlinecomputedforweightremaininginthecontainmentasafunctionoftimeisnegativesinceweightremaininginthecontainmentdecreasesasafunctionoftime.Henceleakageoutofthecontainmentisshownasnegativeinthe-table.**10CFR50AppendixJcriterion++Testcriterionspecifiedbyplantprocedure12THP4030STP.202+GuidelineproposedbyANS274DraftNo.1.ItemA,L,isthemeasuredcontainmentleakageafter24hoursoftBingdatainone-halfhourintervals.Itwascalculatedusingthe'AbsoluteMethod'na'totaltime'asisasdescribedinAmericanNationalStandardN45.4-1972.ItemB,L/95%,isthe95KupperconfidencelimitoftheleakrateI'tiscalculatedfromthevarianceoftheslopeoftheleast-squareslineandthevalueofthet-distributionfora95KconfidencethatL/95/istheupperlimitoftheactualleakrate.ItemC,ThetypeCpenaltyleakageiscalculatdfromthelocalleakagetestprogramconductedperplantprocedure12THP4030STP.203,'TypeBandCLeakRateTest'.TheTypeCpenaltyleakagerepresentstheleakageofsystemspenetratingthecontainmentpressureboundarythatisrequiredtobedrainedandventedfortheTypeAtest,thatduetoexistingpiping,configurationsorplantconditionscouldnotbedrainedorvented.TheleakageofisolationvalvesassociatedwiththesesystemsappearsinTable3.2.The".otalonTable3.2,expressedinweightpercentperday,issubtractedfromtheallowableleakagespecifiedforItemBinSection3.1.TheuseoftheTypeCpenaltyinli'euofdrainingtheaffectedsystemwaspartofcommitmentsmadetotheNRCandappearsformallyinAppendi,xg,question22.'l4oftheUnit2FSAR.ItemD,L,istheimposedleakusedinthesupplementaltesttoverifyt3eaccuracyoftheTypeAtest.InaccordancewithguidelinesofANS274DraftNo.1andtheUnit2TechnicalSpecificationstherateoftheairbleed,inweightX/day,wasestablishedat.2006wt5/day.Page3 Table3.2TeCPenaltLeakaeForUndrainSstemsRCDTtoRCDTppsCPNP40IsolationValvesDCR-205DCR-206Leakage~SCCMRCSystemaccumulatorfilllinesRefuelingwaterlinetoRefuelingCavity6836ICM-256SF-151SF-15349.6Cont.SumpLinetoHasteHoldupTanks41DCR-600DCR-601748.6NESWtoandfromContainment6061.4RCPSealHaterLines11121314CS-442-1CS-442-2CS-442-3CS-442-476.2CVCSLetdownandExcessLetdownLines3437QCR-300~50.0QCM-250&-350SampleLinesfromAccumulators81ICR-5ICR-6SampleLinesfromPressurizer66NCR-109&1100NCR-107&108CYCSChargingLine35.CS-32160.6GlycolLinesto.andFromIceCondenserAHU's86VCR-10&11VCR-201TotalTypeCLeakagePenalty(SCCM)=7046.4Expressedin/La=6.39Expressedin/wt/day=.015975Page4 fll,fl! ItemE,thecompositeleakage,L,istheslopeoftheleastsquareslinedeterminedfromthedatatakenduringthe.supplementaltest.Ideally,LwouldbeequaltothesumofLandL.camoItemF,SupplementalTestCorrelation.10CFR50AppendixJrequiresthattheagr'cementbetweenLand(L+L)iswithin.25L.Thetableshowsthatth5correlHion8etweenLand(L+L)isa'00716/wt/dayor0.03L.4.0ConductofTest4.1OranizationofTestTheD.C.CookPlantPerformanceEngineeringSectionwasresponsibilefortheIntegratedLeakRateTest.Functionsperformedbypersonsinvolvedinthetestcouldbesubdividedbetweenpre-testandtestactivities.Figure4.1.1and4.1.2illustratetheorganizationofpre-testandtestactivities,respectively.Pre-TestResonsibilitiesTestSupervisor-OrganizedeffortsrequiredtoensurethereadinessofUnit2ContainmentSystemsandtestinstrumentationfortheconductofthistest.Thisincludedarrangingforinstrumentcalib'ration,installation,andsystemchannelverification,andcompletingtestprerequisites.InstrumentTechnicians-Performedinstallationandchannelverificationoftest.instrumentsystem.ContainmentInspectionGroup-Organizedandconductedaninspectionofallaccessiblecontainmentinteriorandexteriorsurfaces,penetrationsandassociatedsystems.Evaluatedandreportedinspectionresultsandwasresponsiblef'rinitiatingany'correctiveactionrequired.LocalLeakTestProgramGroup-PerformedTypeBandCLeakRateTestasperplantprocedure12THP.4030STP.203.Responsibleforinitiationcorrectiveactionasindicatedbytestresults.ReportedresultstoTestSupervisor.DepartmentInterfaces-Contactedasrequiredtohelpsafisfytestprerequisites.TestResonsibilitiesTestSupervisor-(1per12hourshift)Responsibleformaintenanceoftestdocumentation,datainspection,andthegeneralconductofthetest.Page5 Timekeeper/DataCoordinator-(1per12hour'hift)Maintainedcontroloverdatacollectionintervalsandtransferreddatatothecomputerinputformat.DataDispatcher-(1per12hourshift)Checkedthetransferofdatafromdataacquisitionsystemtapesanddatatakers'heetstothecomputerinputformat.Shuttledcodingformsfromtestareatocomputerterminal,loadedpunchedcardsintocardreader,andcheckedtransferofdatafromcodingformstocomputerprintout.DataTakers-(3per12hourshift)Responsiblefortherecordingofspecifictestinstrumentreadings.KeypunchOperator-(1per8hourshift)Responsibleforpunchingdataontocardsfromcodingsheet.Assisteddatadispatcherincheckingtransferofdatafromcodingformstocomputerprintout.Page6 FIGURE4.1.1-PRE-TESTORGANIZATIONTESTSUPERVISORINSTRUMENTTECHNICIANSCONTAINMENTINSPECTIONLOCALLEAKTESTPROGRAMTESTGROUPDEPARTMENTINTERFACESw/OPERATIONS,CSI,MAINT.FIGURE4.1.2-TESTORGANIZATION'ESTSUPERVISORKEYPUNCHOPERATORINSTRUMENTTIMEKEEPERDATACOLLEC-TIONCOOR.AEPSCCOMPUTERTECHNICALSUPPORTCANTONDEPARTMENTINTERFACESw/OPERATIONS,C8tI,MAINT.,RADPROTECTIODATADISPATCHERSDATATAKERSPage7
AEPSCComputerTechnicalSupport-Canton-Oncallincaseofafailureofeitherthedataanalyaisprogramorthecomputersystem.InstrumentTechnicians-(2per12hourshift)Responsibleformaintainingalltestinstrumentationinaproperoperatingcondition.DepartmentInterfaces-Contactedasrequiredtocompletetestrequirements.4.2LoofTimesandEventsHavingsatisfactorilycompletedtheinstallationandcheckoutofalltestinstrumentation,asuccessfulcontainmentinspection,thevalveline-up.initialconditions,andallothertestpre-requisites,pressurization'ofthecontainmentwasinitiated.PressurizationoftheUnit2reactorcontainmentbeganat0530hoursonMay1,1981.Containmenttemperatures,pressures,'ndvaporpressures,andambienttemperatureandbarometricpressurewereloggedonanhourlybasis.Eachdatasetcollectedwereassigneda'RunNumber'tartingwithRun81at0600hours.At0130onMay2,1981pressurizationwasterminatedatapressureof12.4932PSIG(Run25P).Duringthepressurizationperiodtwoseparateentriesweremadeintothecontainmentinstrumentroomtoworkondewpointhygrometers.RewiringofthehygrometerreadoutscorrectedthehygrometerproblemsonallhygrometersexceptVPL-2.Itwasdecidedjustpriortotheendofthepressurizationperiodtorunthetestwithoutthisredundanthygrometer.*ThroughouttheremainderofthetestYPL-Iwasusedaloneforlowervolumedewpoint.Thestabilizationperiodwasinitiatedat0200onMay2.Aftertheminimumperiodof4hours,containmenttemperaturesweremonitoredcloselytodeterminewhenthestabilizationcriteriahadbeenmet.Stabilizationcriteriadefinedbyprocedure12THP4030STP.202are:a.Thedurationofthestabilizationperiodhasexceededtheminimum4hours.b.Thecontainmenthasbeenmaintainedatapressureof12.0(+0.5,-0.0)psigforaminimumof2hours.c.TheweighedaveragetemperatureintheUpper,Lower,and'IceCondensercompartmentshasnotvariedmorethan0.1'F/hroverthelastfour(4)hourperiod.d.NosingleUpper,LowerorIceCondensercompartmenttemperaturereadinghaschangedmorethan0.5'Fduringthelasthourofthestabilizationperiod.Page8 ij Atapproximately0300itwasdiscoveredthataheaterwasenergizedonHV-CUV-2whichwasrunning.Thisheaterwassecuredandallventilatingunitsinthecontainmentwerestartedtotrytocirculateairtoimprovethetemperaturedistribution.tlostofthefanstrippedoffduetothermaloverloadafteraboutonehourandwereleftoff.Allfansweresecuredatabout0530.After15hoursallofthestabilizationcriteriaweremetandthestabilizationperiodwasdeclaredoverat1700onHay2,1981(Run31S).The'TypeA'estwasbegunat1730onHay2,1981withacontainmentpressureof12.3799psig.Preliminaryleakagecal-culationsperformedforthestabilizationperiodhadindicatedthatthe'TypeA'estcriterionhadalreadybeensatisfied.Itwasnowjustamatterofcontinuingthehalf-hourdatacollectionintervalsuntiltheminimum24hourtimerequirementandotherselfimposedcriteriahadbeenmet.After24hoursofdatacollectionthe'TypeA'estwasdeclaredsuccessfullycomplete.(Run49T).AfterRadiationProtectiondrewasampleofthecontainmentairforanalysis,airwasbledfromthecontainmentthroughacali-bratedrotameter.Thisleakratewasestablishedat3.1scfm(.2006wtI/day)whichisinaccordancewiththeUnit2TechnicalSpecifications(quantitygreaterthan255oftotalmeasuredleakageatPa)andtheguidelinesofANS274Draft1(.5LL<L).Atthecompletionoftheminimum6hoursofdat3c8lleciionthesupplementaltestandtheILRTwasdeclaredsuccessfullycomplete.Thesupplementaltestshowedacorrelationbetweenthemeasuredleakandtheimposedleakof.03L,wellwithintherequirementoflessthan.25L.Thecontaikmentwassubsequentlydepressurizedandsy'stemswererestoredtonormalasrequiredbyplantoperations.Page9 5.0TestInstrumion8EuimentTable5.1TesnstrumentationItemPressureMeasurementManufacturerMensorQuartzModelRan<acQM10100-0010-100psig0-75psia*~AccuracTestID+0.015readingPU-l,PL-1,PL-2.0001psiresolutionPI-1,PI-2PU-2"TexasInstr.Manometer1450-50psia+.03%reading.0001psiresolutionPatmTemperatureSensors/BridgeHycalEngineering1000PlatinumRTD's/MatchedModularLin-earizingBridgesRTS-4233-BUpperCont.,ESD-9050-AIceCond.(0-100'F)+0.06'FLowerCont.(0-120'F)ETR-101thruETR-146,AmbientDewPointTemperatureTemperatureRecorderSupplementalTestFlowmeterEG3tGFlukeBrooksMirrorSurfaceDataLoggerRotameter992(B)6604)224081110-080-100'F-50to+100'C0-40mV0-4v0.2to5.6SCFMi0.5'F+0.3'C+0.014reading+0.005Kspan+lc/FSYPL-l,VPL-2VPI-1,VPI-2,VPU-1,VPU-2ETR'sDewPointsSupplcmentalHeiseTestPressureGageBourdonTubeCCM0-3psig0.1Ã,FSN/A*0-75psiaQuartzmanometerusedattestconnectionPU-2.Page10 5.2InstrumentSecificationsTheinstrumentationusedduringtheILRTisshowninTable5.1.Eachoftheinstrumentsshownherewassuppliedwithcalibrationperformedwithin6monthsofthetestandtraceabletotheNationalBureauofStandards.CalibrationconversionformulasandcorrectionswerepreprogrammedintotheILRTcomputerprogramtoallowdirectinputofallpressure,temperatureanddewpointinstrumentreadings.Twoprecisiont3ensorquartzmanometerswereusedforredundantmeasurementofthepressureineachoftheupper,lower,andicecondensercompartmentsofthecontainment.Aseventhwasusedtomonitoratmosphericpressureduringthetest.Thethreecontainmentcompartmentswereinstrumentedwithatotalofforty-six.(46)100platinumRTDsensors.Theupper,lower,andicecondensercompartmentscontained16,23and7sensorsrespectively.Eachsensorislocatedtorepresentthetemperatureofauniquesub-volumewithinitscompartment.Thesub-volumescollectivelyrepresentthetotalvolumeoftheirrespectivecompartment.EachRTDreadingisconvertedintheleakratecomputerprogramtotemperatureindegreesFahrenheit.Eachtemperatureisweighedbythefractionofthetotalcompartmentvolumecontainedinthesub-volumetheRTDrepresents.Thesumoftheweighedtemperaturesineachcompartmentistheweighedaveragetemperatureofthatcompartment.Pagell
SixCambridgeDewPointHygrometerswereusedformonitoringcompartmentdewpointtemperaturesforthedeterminationofvaporpressureintheleakratecomputerprogram.Theyprovidedredundantmeasurementofdewpointineachofthelowercontainment,uppercontainmentandicecondenser.TheUnit1andUnit2preoperationaltestsusedonly4hygrometers,2inthelowervolumeandoneinboththeupperandicecondenservolumes.Forthistest,twohygrometerswereaddedfortheupperandicecondenservolumes.Theoriginal4hygrometersarethet1odel8992dewpointhygrometersusedintheUnit1andUnit2preoperationaltests.Thenew)1odel8660hygrometersareimprovedandmorecompactthantheNodelf992.Theyalloperateonthesameprinciple.Theairsampleisdrawnthroughinstrumentlinesacrossamirroredsurfaceofwhichthetemperatureiscontrolledbyanopticalfeedbackcircuittopreciselythepointatwhichadew(orfrost)appears.ThemirrortemperatureismeasuredbyaplatinumRTDimbeddedinthebodyofthemirror.Thesensorandcontrolunitswerelocatedinsidethelowercontainmentvolumesothatthesampleswouldbemaintainedatthecontainmentpressure.Theerrorassociatedwitheachindividualdewpointmeasurementis+0.5F.Theadditionofredundantmeasurementsdidnotsignificantlyaffecttheerroroftheoveralldewpointtemperaturemeasurementsystem.Page12 1J ABrooksrotameterwasusedinthesupplementaltesttomeasureandmaintainaconstantflowratefortheimposedleak.Itwascalibratedintherangeof0.6to6scfmat14.7psiaand70Fwithanaccuracyof+1.05ofFullScale.Theactualinlettemperatureandpressureforthesupplementaltestwere63.7and18.8psia.ThetemperaturewasmeasuredusingETR-133whichisincloseproximitytotheendoftherotameterinletlineinsidethelowercontainment.Pressurewasmeasuredattheinlettotherotameteritselfusinga0-30psiaHeisegage.Thetemperatureandpressurereadingswereusedtocorrecttheindicatedrotameterreadingstostandardconditionsusingthefollowingrelationship:Wcorr=WindX+TETR-133XGageatm14.7WcorrWindETR-133atmCorrectedrotameterflowinpathIndicatedrotameterflowincfmRotameterinlettemperature,'Atmosphericpressure,psia5.3SensorLocationsThelocationsofthesensorsusedforthistestwereidenticaltothelocationsoriginallyspecifiedfortheUnit1andUnit2preoperationalILRT's,Figure5.2.1(MSK-78C)showsthelocationinsectionviewsofthecontainment.5.4~ATheinaccuraciesassociatedwiththeuseofthetestinstrumentationpackageusedintheUnit2PreoperationalILRTinmeasurementofthecontainmentleakageratewasdeterminedtobe+0.076L.AcopyoftheanalysiscalculationiscontainedintheUnit2.PreoperationalIntegratedLeakRateTestReport.IntermsoftheimpactonthiserroranalysisonlyinsignificantdifferencesexistbetweentheinstrumentationpackageusedintheUnit2Preoperational-ILRTandthepackageused,inthistest.Theerroranalysisandthe+0.076LresultobtainedfortheUnit2Pre-operationalILRTTsconsidlredtobealsorepresentativeofthemodifiedinstrumentationpackageusedinthistest.Page13 5.5ContainmentPressurizationAaratusAsintheUnit1andUnit2Preoperationaltests,theplantairsystem,inconjunctionwithtestpressurizationfiltersanddriers,wereusedforpressurizingthecontainment.Theairentersthecontainmentatapproximatelyambienttemperatureandadewpointofapproximately-20'F.Theairentersthecon'tainmentthroughasparepenetrationintheuppervolume.Avalveisprovidedatthepenetrationoutsidethecontainment,wheretheairlinecanbeisolatedandclosedwithablankflange.6.0ContainmentModelandLeakRateCalculationThecontainmentleakareperformedbythe'absolute'ethodona'totaltime'sdescribedinAHS-N45.4-1972.Thecontainmentdesignpressureis12.0psigandallowableleakage(0.75La)is0.18755wt/day.Thecontainmentmodelandleakagecalculationsusedtoperformthistest-areessentiallythesameastheonesusedintheUnit1andUnit2preoperationaltests.A3-compartmentmodelisemployedforthecalculationofthecontainmentleakrate.ItwasdevelopedtoaccommodatethedistinctandwidelyvariedenvironmentalconditionsexistingineachoftheUpper,LowerandIceCondenserVolumes.Thenormalizedfractionoftheinitialcontainmentdryairmass,W,iscalculatedonacompartmentalbasisbyratioingthesumofntheproductofeachcompartment'sdryairdensityandcompartmentvolumefractionsasdeterminedfromdatacollectedattimet,tothesamevaluedeter-minedfromtheinitialdatacollectedatntimet.0Expressedinequationfons:1Wn=KWFunUn+VWFLnLn+VWFP-VPP-VPuTunLTPIn-VPInTIn1RVWFUUoUo+VWFLoL+VWFUoLoIo-VPIoTIoPage14 Ipli Where:W=normalizedweightremainingincontainmentattimet(dimensionless)nft-1bsR=gasconstantfordryair=53.34ibm-'R(Thetermscancel)VWF=VolumeWeighingFactor(EachcompartmentvolumeisratioedtotheLowerCompartmentVolume)(dimensionless)P=CompartmentTotalPressure(psia)VP=CompartmentVaporPressure(psi)T=CompartmentWeighedAverageTemperature(degreesRankine)UpperCompartmentLowerCompartmentIceCondenserInitialTimetimeatnthdatacollection6.1VolumeWeihinFactorsTable6.1.1showsthecompartmentfreevolumedistributionfornormaloperation:Table6.1.1*.ContainmentFreeVolumeComartmentFreeVolumeftUpperLowerIceCondenserTotal687,819365,614210,7231,264,156ThevolumedistributionexistingatthetimeofthetestmaydifferfromthevaluesindicatedinTable6.1.1intwoways:*Ref.AEPSCI&CCalculation12-PI-05'VolumeWeighingFactors'age15 1.ThetotalvolumeoftheicecondenserinTable6.1.1doesnotincludethevolumeoficeresidentinthe'icebasket'.2.Thelocationofthemoveablesectionsofthereactormissileshielddonotnecessarilyhavetobeinplaceduringthetest.TheicecondenservolumewasadjustedforthepresenseofthevolumeoficeintheicecondenserasdeterminedbytheIceBasketWeighingProgram,performedperplantprocedure12THP4030STP.211betweenMajch16andApril8,1981.Thetotaliceweightw~s2.637x10pounds.Thestandarddensityofice,563lbs/ft,isassumedtocalculatethevolumedisplaced,47,095ft.3ThisreducesthenetfreevolumeintheIceCondenserto163,628ft.Thelocationofthemovablesectionsofthereactormissileshieldaffectsthevolumedistributionbetweentheupperandlowervolumes.Whentheshieldisremovedfromitsnormaloperatingpositionitprovidesopenaccesstothecont~olroddrives,andreactorheadfromtheuppervolume.The16,147ftoffreevolumeabovetheheadnormallyisolatedfromtheuppervolumebytheshields,isthenindirectcommunicationswiththeuppervolume.Whentheshieldsareinplace,thevolumeisventedonly.tothelowercontainmentandisthereforeconsideredpartofthelowervolume.Table6.1showsthevolumedistributionofthe'containmentwithamissileshieldremoved,whichisthepositiontheshieldswereinfor)heperformanceofthistest.Hadtheshieldsbeeninplace,16,147ftwouldhavebeensubtractedfromtheuppervolumetotalandaddedtothelowervolume.ThecontainmentvolumesusedinthecalculationsoftheleakrateinthistestareshowninTable6.1.,2.Table6.1.2ContainmentVolumeAd'ustedForConditionsExistinDurinUnit2ILRT.ComartmentFreeVolumeftUpperLowerIceCondenserTotal703,966349,467163,6281,217,061VolumeweighingfactorsweredeterminedfromthevaluesinTable6.1.2'.Thevolumeweighingfactorsexpresscompartmentvolumesinper-unitusingthelowervolumeas'base'.Table6.1.3showsthevolumeweighingfactorsusedforthecalculationoftheleakrateinthis,test.Page16 Table6.1.3ContainmentVolumeHeihinFactorsderivedfromTable6.1.2ComartmentUpperLowerVuLVLLVolumelieihinFactor2.01441.0000IceCondenserIVL0.46826.2ContainmentPressureandVaorPressure6.3Equation6-1showsthatthecompartmentpressuresarecompen-satedforvaporpressureinthecalculationofweightremain-inginthecontainmentvolume.Theevaporationofwaterfromtheexposedsurfacesofwatervolumesinthecontainmentwouldresultinanincreaseincontainmentvaporpressureaswellastotalpressure.Thecondensationofwatervaporontocontainmentsurfacescoolerthanthedewpointofthevaporwouldcauseadecreaseinboththevaporpressureandtotalpressure.Ifthetotalpressurewerenotcompensatedforvaporpressure,vaporpressureincreasesduetoevaporationwouldreflectanapparentincreaseofthecontainmentairmass,whichwhensuperimposedoveramasslossduetocontainmentleakagewouldresultinameasuredleakrateofalessmagnitudethantheactualleakrate.Condensationwouldresultinameasuredleakagegreaterthantheactualleakrateifthecorrespondingvaporpressurechangewerenotaccountedfor.ThesensitivityoftheleakratecalculationstovaporpressurechangesisespeciallygreatinanIceCondenserContainmentsincetheenergyabsorbingicebedreducesthedesignaccidentpressurefrom50-60psig,typicalofconventionalcontainments,to12psig.Thevaporpressurethereforerepresentsalargefractionofthetotalpressureintheicecondensercontainment.ContainmentTemeraturesContainmenttemperaturesareusedtocompensatetheweightremainingcalculationfortotalpressurechangescausedbythethermalexpansionorcontractionofthecontainmentatmosphere.Itisrecognizedthattemperaturegradientsexistinthecontainmentandtemperaturechangeswillnotnecessarilybeuniformthroughoutthecontainment.ThereforethecontainmentPage17 isinstrumentedwith46temperatureprobes,locatedsuchthateachmonitorsafractionofthetotalcontainmentvolume.Intheestablishmentoftemperaturesub-volumeboundariesandtemperatureprobelocation,considerationwasgiventothelocationofphysicalthermalbarriersandheatsourcesandsinks.Thesub-volumesaregenerallydifferentinsizeaswellasshape,thus,indeterminingaveragecontainmenttemp-erature,temperaturereadingsareweighedasafunctionofthevolumefractiontheyrepresent.Theweighingoftemperaturereadingsoccursonacompartmentalbasis.Theweightedaveragetemperatureinacompartmentisgivenbythefollowingexpression.NcTZTKvgcni=].cniciTavl<eighedaveragecompartmenttemperature(')cnforcompartmentcattimetnKcnTemperatureatsensoriincompartmentcat'imetK.CiTemperatureweighingfactorassociatedwithsensoriincompartmentc.Totalnumberofsensorsihcompartmentc.Temperatureweighingfactors,likethevolumeweighingfactorsdiscussedinSection6.1varyasafunctionofbothicecondenserloadandreactormissileshieldplacement.6.4TheStatisticalDeterminationoftheLeakRateThereisinevitablyacertianamountofrandomerrorassociatedwiththeleakratemeasurementsandthecontainmentleakageitselfthatcauseavarianceinthecalculatedremainingweight,Wn,andtheleakrate,Lam.InordertodeterminetheleakratefromWnafteratestperiodoft,afirstorder(linear)least-squaresfitofWvstisperformed.nThismethodselectsafunction,W(t)=bt+a,inwhichslope,bandintercept,a,aredeterminedbyminimizingthevarianceg,ofWwithrespecttoW(t).ThevarianceofWnrelativetoW(t)fs:Page18 2"(Wi-W(t))=z(Wi-(bt.+a))n1=1(6.4-1)Thevaluesofaandbthatestablishtheminimumvariance~aregivenbythehomogeneoussimultaneoussolutionofthepartialderivativesofawithrespecttoaandb:0and-=0BaBa~aaBb(6.4-2)Thesolutionoftheaboveyield:nnnEWt-EWEi=1i=1i=1(6.4-3)n.2nnnEt~.zW~-zt.EW~i=1i=1i=1i=1n2nzti-(zt)i=11=1(6.4-4Theslopeofw(t),b,istheleakrateexpressedasthechangeinnormalizedcontainmentweightperunittime.Theunitoftimeusedishours,andthus,Lisgivenby2400Lam=tn(Xwt/day)6.5TheUerConfidenceLimitThe951UpperConfidenceLimitoftheleakrateisdeterminedfrom'hevarianceoftheslopeoftheleast-squaresline,W(t),andthevalueofthet-distributionforn-2degreesoffreedombasedonaone-sided95%confidenceinterval.Theuseoftheone-sidedintervalinthistesthasreplacedthetwo-sidedintervalusedintheUnit1andUnit2Preoperationaltests.Thetwo-sidedlimitplacedupperandlowerboundsaboutthemeasuredleakratewithinwhichtherewasa95Kcertaintyofthe'actual'eakrateexisting.Sincetheintervaldeterminedbythismethodissymmetrical,the954two-sidedintervalwasactuallyimposinga97.5Ãconfidenceontheupperboundoftheleakrate.Theimpositionofa954confidenceontheupperlimitoftheleakrateisequivalenttotakingtheupperboundofa90/two-sidedinterval.Page19 Thet-distributionisusedtoestimatetheintervalaboutthemeanvalueofafinitesetofv(nu)independentnormallydistributedmeasurementswithinwhichthemeanofthepopu-lationofinfinitemeasurementsfromwhichthefinitesetwastaken;existstoastatedlevelofconfidence.ReferringtoTable6.5.1,thevalueKofthet-distribution,asdeterminedfromthepointatwhichthecumulativedis-tributionofthet-distributionhasthenormalizedvalue~/2,definesatwosidedintervalaboutthemeanofo(nu)independentmeasurementstheentirepopulationofmeasurementsexisttoaconfidenceof1n.Thet-distributionisnormalizedsuchthatitsmeaniszeroandthestandarddeviationisone.ThisallowsK(v,a)tobeapplieddirectlytothemean,x,andstandarddeviations,ofanysampleUindependentmeasure-mentsrepresentinganormallydistributedpopulation.Theconfidencelimitsareexpressedasx+K(u,a)S.Intheapplicationofthisstatisticalmethodtotheleakratetest,theslopeoftheleast-squaresline,b,isthe'mean'a/ueoftheleakrateandthevarianceofthe'mean',S,isgivenby:nS=E(W.-(bt.+a))bi=1nwhere,t=Et.l=lPage20 tI, Oh>>)Oa>>TABL~6,$,lDISTR!StTIOlSOFgO>>Sr>>caoffreeclocnKoK0.10Probabilicyo0.0$I0.0ll0.001I245678910II121314151617181920212223242526272829306012063142.920nM32.132XOI51.9431JL951.860IJU31.8'121.7961.782.1.771I7611.7531.746I7401.7341.7291.725.1.72l1.7171.7141.7111.708I.r061.7031.701I.&991.6971.6841.6711.6581.64512.70643053.1822.77655712.447236523062262222SLAI2.179~2.1602.14$2.1312.120'.1102.1012.0932.086%0802.0742.0692.06429602.056,2.0522.0482.0452.042'.0212.000I.980'.960&3.6579.9255.8414.6044.0323.'7073.499335532505.1695.1063.0553.0122.9772,9472.921231982.S782.S612445"X$31ZSI923072.79757872.779Z.r7I2.763~2.756L7502.7042.&602.617Zi76636.619.31398IÃ9418.6106.859$.9595;4055.0414.78143874.43743184221'.1404.0734.0153.9653.922~3.88)~3.8503.8193.7923.7673.7453.7253.7073.6903.6743.6593.6463851.3.460)3733491icuamblcSiresthe>>aloesofccorrespondingto>>ccsnus>>aloeso(theprooabiiicyo0>>eelofsilnifceancelofarandomeaciablciaUin9cnscctecheshadedareasintheRlscre.foraci>>cnnumberofdryreesoffreedomraeaihblcforcheccticnacicmoferror.Foraonnudcdtcschcennfcdcncc0rnftsareobtaincdforocrihistablciscahcnfromiaoicillofFisherfsYaccscSccruoorfi>>kkcj>>rBi>>f>>fcrcf.Byn'cafe>>r>>f.>>M.Mrec&Erst>>rntoublashedbyQliectBcBoydl'dEoinburSilbypermissionoftheauthorsandpublishers'heabove~~able'susedtodeterminetheaporopriatevalueof'K'asedonprevai3.'cgdemeesoffreedom.Thistablehasbenez"racted"omBasicStatisticalMethods:or=.~i.ers~cd,Scintists.IPage21 6.6Ofthetotalofnmeasurements(W.t.)onlyn-2areindependentsinceaandb,theslopeandinterchptoftheleast-squaresline,havingbeenderivedfromn(W.t.),canpredictanytwo(W.t.)withtheothern-2measuremeht3.Hence,v=n-2.11Thevalueofausedisthatwhichcorrespondstoa90/two-sidedconfidenceintervalwhichisequivalenttoa1-a/2or95Ãone-sidedinterval.Thevalueofaistherefore0.1.Now,theupperconfidencelimitoftheleakrate,b,isexpressedas:b-K(n-2,O.1)=SbThenegativesigndefinestheupperlimitsincethevalueofbisnegative.TheLeakRateComuterProram'LRTEST'heleakratecomputerprogram,'LRTEST',hasreplacedearlierversionsofthetwoprogramsusedintheUnitIandUnit2preoperationaltest,knowas'CCVDREP'nd'CCVREPT'.'LRTEST'ncorporatestherevisedstatisticalanalysisdiscussedinSection6.5andanaddeddegreeofflexibilitythatitspredecessorslacked.'LRTEST'ccommodatestheoperatorinputofcertain'fixed-data':thecalibrationconversionandcorrectioncoefficientsofthepresentinstrumentationsystem,andthevolumeandtemperatureweighingfactors.,ThefixeddatarepresentsthatwhichisfixedforthedurationofoneILRT,butwillvaryfromoneILRTtothenext.'LRTEST'eceivestestdatafromacardreader.Therawtestdatacollectedforeachtestintervaliscodedontoinputdatacodingsheetsandpunchedontocomputercards.Thedataincludesthedatarunnumber,theelapseddecimaltimefromrun81inhours,the46containmenttemperaturesinmillivolts,sevenpressures(6containment,1barometric)inpsia,anddewpointtemperaturesinmillivolts.Thedatacardsareaccumulatedinadeckintheorderoftherunnumbers.Theprogramestablishesafilefortherawdataandcomputesvaluesexpressedintheproperengineeringunits.Theprogramcomputestheaveragecompartmentandcontainmentpressures,thecontainmentpressurerelativetoatmospheric,theweighedaveragecompartmenttemperatures,andtheaveragecompartmentdewpointtemperatures.Fromtheaveragedewpoint,thevaporpressureiscalculatedusingtheGoff-Gratchformulasforsaturationvaporpressureoverwateroroverice.Page22
Foreachrunofthecomputerprogram,therawinputdataandtheabovecomputedvaluesaresummarizedforthemostrecentdatarun.Thisisavaluableaidtoinputdataerrorcheckingandanalysis.Also,attheoptionoftheprogramoperatorthissummarymaybeprintedforanoperator-specifiedrangeofrunsendingwiththelastdatarun.Aseparatesummaryofaveragecompartmentpressures,temperaturesandvaporpressuresisalsoprintedforeitheralltherunsenteredintotheprogram,orforalltherunsinarangespecifiedbytheoperator.Theelapsedtimeprintedforboththeindividualrunsummariesandtheoverallsummaryiscontrolledbythestartingpointoftherange.Afterthreedatarunshavebeenmadeorthreerunsareavailableintheuserspecifiedrange,(aminimumofthreerunsisrequiredtoperformtheleast-squaresandstatisticalanalysis)theprogramcalculatestheleakrateand95%upperconfidencelimitoftheleakrate.Inaddition,theprogramcalculatestheremainingweightofthecontainment,andofeachcompartment.Theremainingweightsinacompartment'c',isgivenbythefollowing:.P-PVcncncncnPPVcoTheindividualcompartmentremainingweightsareusedonlyasanaidtodatainterpretation.Acopyof'ILRTEST'ppearsasSection7.0ofthisreport.TheprogramoutputsforthistestcanbefoundinSection8.0ofthisreport.Page23 7.0D.C.COOKNUCLEARPLANTCONTAINMENTINTEGRATEDLEAKRATETESTPROGRAM'LRTEST'age24 e-HBR=ILRTESTol/14/75LIB=>>%%%%%%%ANERICANELECTRZRSERVICECORPORATIONCOMPUTERAPPLICATIONSDIVISIO'.(SOURCELIBRARYOUTPUTol/28/8111.23.27PAGE0002-=-----QIBRARYjFEB5l98iRKCiKTVF100010000020000030000040000050000060000070000080000090000100000110000120000130000140000150000160000170000180030%302%303%304%305001900002000002100002200002300002400002500002600002700002800002900003000003100003200003300003400003500003600003?0000380000390000400000410000420000430000440000450000460000470000480000490000500000510000520000530000540000550030IMPLICITREAL>>8(A-HP-Z)REAL>>8K>LVPDIMENSIONTEHPUC(16)<<TEMPLC(24)>TEHPZC(7)DIMENSIONTEHPU(16)<<TEHPL(24)>TEHPI(7)DATALUC<<LLCtLIC/16~24>7/DIMENSIONRTDLl(16)<<RTDL2(24)<<RTOL3(07)DATARTDL1/'ETR-101ETR-102ETR-103ETR-104ETR105'>.--'ETR-106ETR-107ETR-108ETR-109ETR-110'ETRill~'TR112>ETRlltTR128<<ETR133>ETR113/DATARTOL2/'ETR-122'ETR-123'ETR-124'ETR-125'ETR-126'TR-127TR-129TR-130'ETR-131TR-132'ETP.-134'ETR-135'<<'ETR-136'>'ETR-137'ETR-138'TR-139TR-140TR-141TR-142TR-143t'ETR144ETR145ETR-146ETR-113'/DATARTDL3/'ETR-115-'<<'ETR-116'>'ETR-117'>'ETR-118'<<'ETR-119-'>'ETR-120'>'ETR-121'/DIHENSIONMUC(99)<<MLC(99)tWZC(99)>M(99)>TINE(99)<<NRA(99)t-ATUC(99)>APUC(99)>AVPUC(99)>ATLC(99)>APLC(99)>AVPLC(99)>ATIC(99)>APZC(99)<<AVPIC(99)DIMENSIONK(18)<<SR(70)>DP(6)<<LVP(6)>PRES(7)tPRESC'(7)<<VPR(6)DIMENSIONWTUP(16)>WTLOM(24)>WTICE(7)>TABLE(97)DATATABLE/6~314<<2~920<<2~353>2132<<2~015<<l943>l895<<l860<<l833~-1.812>1.796>1.782>1.771>1.761>1.753>1.746>1.740>1.734<<1.729>1.725<<-1.721,1.717,1.714,1.711,1.708,1.706,1.703,1.701,1.699,1.697,1.695,-1694>l692>1691>l689tl688>1~687<<1~686>l685>1684>l683<<l682>1681>l680<<l679<<l679<<l678>l677>l676<<l676>l675>1675<<l674<<-1.673>1.673>1.672>1.672>1.671>1.671>1.671>1.670<<1.670<<1.669<<1.669<<-1.669<<3%1.668>3%1.667<<3%1.666>4%1.665>4%1.664>5%1.663>5%1.662>-5%1.661/DATAMDUP<<MDLO>MDIC/UPPER<<LOWER>ZCE/STARTOFPROGRAHI=1OLGIOO=DLOGZQ(1013.246DO)DLGO=OLOG10(6.107100).MDEH=0.0READ(5<<300>ERR=22<<END=12)Cl>C2>C3>C4>C5>C6<<IXS>IXE<<IPR0FORMAT(6F6~3<<4X<<13>?X>13>?X<<13)I-"2READ(5>301>ERR=22<<END=12).K1FORMAT(6F11.6/6F11.6/6F11.6)I"-3READ(5<<302<<ERR22>END12)SKFORHAT(ZOF8.5/10F8.5/10F8.5/loF8.5/10F8.5/10F8.5/ZOF8.5)Z=4READ(5>303<<ERR22<<END=12)MTUP<<MTLOMtMTZCEFORHAT(loF6.5/6F6.5/11F6.5/13F6.5/7F6.5)I==5READ(5>304>ERR2'2>END-12)VWFltVWF2>VWF3FORMAT(3F7.5)WRITE(6>305)Cl>C'2<<C3>C4>C5<<C6tK(l)tK(2)>K(3)>K(7)<<K(8)<<K(9)<<K(13)<<K(14)>K(15)<<K(4)~K(5)>K(6)<<K(10)<<K(ll)<<K(12)~K(16)tK(17)tK(18)>SRFORMAT(1Hl<<l4X>%%%THISISACHECKOFTHEINPUTDATA%%%////1H'RTD)1ILLI-VOLTTOFAHRENHEITCONVERSIONCOEFFICIENTS'/lH>6X>UPPER>12X>LPO'OR>13X>ICE/1H>F5~2<<3X>F52>4X<<F5~2~3X<<%%ol/27/78%%02/02/78%%01/27/78------%%01/27/78%%01/27/78%%01/27/78%%01/27/78-=---%%01/27/78%%ol/27/78%%01/27/78%%01/27/78%%01/27/78%%01/27/78%%Ol/27/78==--%%01/27/78%%ol/27/78%%01/27/78%%ol/27/78%>>01/27/78==----=%%01/27/78%%05/23/78%%05/23/78%%05/23/78=----%%05/23/78%%05/23/78%%05/23/78>>>>05/23/78=--===--%%05/23/78%%05/23/g8%%01/27/78=%%=01/27/78%%01/27/78%%ol/27/78%%01/27/78%>>02/22/78-===-=-.%%01/27/7802/22/78%%02/22/78%%01/27/7801/27/78-%%01/27/78%%01/27/78%%Ol/27/78-===---.%%10/24/77%%01/27/78%%01/27/78%%10/18/77%%=01/27/78-02/02/78%%10/18/77%%01/27/78%>>Ol/27/78------=--%%ol/27/78%%10/18/77%%10/18/7710/1~77Paae25 R=ILRTEST01/14/75LIB=<))))))))))))))SOUR~NARYOUTPUT01/28/81,11.23.27003005600005700005800005900006000006100006200006300006400006500ooeeoo006700ooesoo006900007000007100007200007300007400007500007600007700007800007900ODSDOO008100008200008300008400006500008600008700008800006900009000009100009200009300009400009500OD960000970000980000990001000001010001020001030001040001050001060001070001D600010900011000011100011200011300F5~2>4X>F52~3X>F5~2//Ii1H>HYGROtlETERt(ILLIVOLTTO'FAtlREt(HEITCOHVERSIOi(COEFFZCIEt(TS'/lH)T15>'UPPER-1'T48>>-=-----=LO)1ER1)T82>ICE1/1H)9(Flo5)1X)//1H)T15>UPPER2)T)8)'LO'HER-2')TG2)'ICE-2'/1H)9(F10.5)1X)////1H)'t(At(Ot(ETERPRESSURECORRECTICt(COEFFICIENTS'/T40)PU1/10(lX>F74)//1H~38X>PU2/1H)9(F74>>lX)>>F7~4//1H>38X>'PL1/1H>9(F7~4)lX)>F7.4//1H)38X)'PL-2'/1H)9(F7.4>lX)>F7.4//1H)36X)'PZ-1'/1H)9(F74>lX)~F74//1H~3SX>'PI2'/1H>9(F74>>lX)>F7)//1H>36X>>PATt1llH>9(F74>1X)~F74)WRITE(6>306)WTUP>WTLOW>WTZCE>VWF1>VWF2>VWF3306FORHAT(lH->'RTDWEIGHTItlGFACT/?5'/jH>27X>'UPPER'/ZH>9(F5.4)lX))F54/jH>5(F54>lX)>F54//1H">27X>LO>iER/1Hslo(F54~1X)>F54/lH>12(F54)1X)>F54//1H)28X>'CEI1H)6(F54>lX)>F54////1H>'VOLU11EWEIGHTINGFACTORS'/1H>1X>UPPER>2X>'OWER'3X>'ICE'/1H>2(F6.4)lX)>F6.4)IF(IXS.LE.O)ZXS=1IF(ZXE.LE.O)IXE=99902/22/78<))IF(WTUP(16).LE.O.O)GOTO701-LLC=23GOTO702701LUC=15702NR"-0LZCP1=LIC+1LUCP1=LUCt1<CNRISSTORAGEINDEX>PROGRAtlDATAACCESSLOOPSTARTSHERE.)tDO20IR=199IBYP=0READ(5>>100>ERR=42>END=32)NRD>TZHER100FOPt1AT(Z3,1X)F5.2)02/22/78lE%%CINPUTSEQUEt(CECHECK))%ZF(t(R.EQ.O.OR.HRD.GT.HRO)GOTO703WRITE(10)901)IR>t(RD%)f901FORilAT(1HO>2X,'ILR005IDINCORRECTDATASEQUENCE'2X>I2,2X,I3)02/24/78<))GOTO2332IF(IPR.HE.O)GOTO40IPR-"99GOTO55703HRO=t(RO=.=-.K%IF(t(RO.GT.ZXE)GOTO32ZF(t(RO.GE.IXS)GOTO705IBYP=1GOTO707705ZF(t(RO.EQ.ZXS)TZt(EST=TZtlERNR=NR+1TINE(ti)\)=TIt(ERTlt(ESTttRA(t'iR)=HRD200FORHAT(lHl>'RUNt(UHBER'4XsZ3/lHs'ELAPSEDTINE'2X>F5~2///1H~02/22/78))>'COtlTAItli(EHTTEtlPERATURESDATACHECK'//1H>7X>'UPPERVOLUHE's21X>'LOWERVOLUHE')19X)'ZCECONDEt(SER'llH)3X)'RTD'2X>'t1ILLI-VOLTS'2X)'DEG~F-'7X)'RTD'2X>'HILLZ-VOLTS'2X>>-'DEG.F.'7X)'RTD'2X>>'t)ILLI-VOLTS'2X>'DEG.F.'707READ(5ilol>ERR=42~Et?D=62)TEtlPUC101FORtlAT(10(F5.21X)/6(F5.21X))READ(5)102ERR=42END=62)TEHPLC102FORMAT(jj(F5.2>>jX)/13(F5.2>jX))READ(5>103>ERR=42>END=62)TEt1PIC103FORtlAT(7(F5.2,1X))IF(ZBYPEQ1)GOTO4510/18/7701/27/7801/27/78Ol/27/7602/D2/7810/24/7710/24/7710/24/7710/24/77Ol/27/78=01/27/7610/18/7710/18/7710/18/77--10/18/7701/27/78o2/22/7e01/27/78=01/27/7801/27/7801/27/7802/02/78=----.-01/27/7801/27/78Ol/27/78Ol/27/78--=--01/27/7801/27/7802/22/7801/27/7802/09/78Ol/27/7802/24/7801/27/78=-===-ol/27/7e01/27/7801/27/7801/27/78=====-=01/27/7801/27/7801/27/7801/27/78-=-01/27/7802/02/7801/27/7801/27/7802/22/7810/18/7710/24/7710/16/77-=-=--==-10/le/7701/27/7810/18/7701/27/76--10/24/7701/27/7810/18/7701/2f78Page26 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R=ILRTEST01/14/75LIB=>><wwNwxwSOURRARYOUTPUT01/28/8111.23.27oo>034600034700034800034900035000035100035200035300035400035500035600035700035800035900036000036100036200036300036400036500036600036700036800036900037000037100037200037300037400037500037600037700037800037900038000038100038200038300038400038500038600038700038800038900039000039100039200039300039400039500039600039700039800039900040000040100201FORMAT(lHl>4SX>'SUMMARYOFAVERAGES'///1H>2X>>'RUNIt'2X>'ELAPSED>2X>3(34HAVGTEtlPAVGPRESSAVGVPRESS)/lH>10X>TINE'6X>UPPER'6X>'UPPER'7X>UPPER>6X>'LOWER'6X>'LOWER'7X>'LOWER'7X>Z-CE'BX>'ICE'9X>'ICE'/)DO43I=1>HR43WRITE(9>202)HRA(I)>TIME(I)~ATUC(I)~APUC(I)>AVPUC(I)>ATLC(I)>APLC(I)~AVPLC(I)>ATIC(I)>APIC(I)>AVPIC(I)202FOR)'IAT(1H>2X>Z3>4X>F6.2>2X>3(F9.4>2X>F9-4~3X~F9-4>2X)JVRITE(9,205)205FORtIAT(lH1>34X>'RESULTSOFTHELINEARREGRESSZOHANALYSIS'///-1H>2X>'RUHit'>SX>'W'>llX>'LEAKAGERATE'>9X>'LEAKAGE'>9X>WUPPER>7X>'WLOWER>9X>WICE/1H>10X>'EXPERIMENTAL~-6X>'UPPERLItfIT'llX>'RATE'SX>'CONTAZHMEtiT'>3X>'COtiTAItitlEtiT'5X>'CONDENSER'/)REGRESSZOHLOOPDO44Z=3>HRTSS=TSS+TINE(I)%TINE(Z)TS=TS+TIt'IE(Z)WS=WS+M(Z)T2SW=T25W+TINE(I)I>M(I)ARUM=TSS<WS-TS<T2SWXHRR=IADEN=XHRR<TSS-TS<TSA=AtmM/ADEN.3fttBt(UM=Xt(RRNT2SW-TS>WSB"-SHUN/ADEtlII=IWSUil=0.0SUMOFSQUAREDDIFFERENCESDO46L=l>ZIWLR=Ai8<TINE(L)3f%IF(DABS(W(L)-MLR).LE.1.0D-39)GOTO46-VSUtl=WSUtl+(W(L)-MLR)<(M(L)-MLR)COtiTItiUEAT=TS/Xt(RRTOT=AT%ATDO48tl=2>ZI48TOT=TOT+(TIME(N)-AT)I>(TINE(N)-AT)B=2400.0MBEKK=TABLE(ZI-2)SIGMAB=DSQRT(WSUN/(TOT<(XHRR-2.0)))DEL=EKK<SIGMAB+2400.0BU=B-DEL20644V>RITE(9>206)HRA(II)>W(ZZ)>BU>B>llUC(IZ)>WLC(ZZ)>WIG(ZZ)-=-.==)It(FORtIAT(T4>Z3>5X>F9.5>2(9X~F9.5)>7X>F9.5>SX>F9'>6X>F9.5)COHTItIUE%CEHDOFREGRESSIONLOOPWRZTE(9>203)B>A203FORMAT(IHO21X'FINALLEAKAGERATE(%PERDAY)='9.55X'INTERCE-PT='>F9.5)I'RZTE(9,204)BU204FORMAT(1HO>21X>'PPERCOHFIDEtiCELIMITFORTHERATEIS>F95)24CALLEXITEHD01/27/7801/27/7802/'02/7802/02/7801/27/7801/27/7801/27/7801/27/78=-01/27/7801/27/7805/23/7805/23/7805/23/7801/27/'7801/27/7801/'27/78-01/27/7801/27/7801/27/7801/27/7801/27/7801/27/7801/27/7801/27/78==-===01/27/7801/27/7801/27/7801/27/78-..==.01/27/7801/27/7801/27/7801/27/78==-=----01/27/7801/27/7801/27/7801/27/78-.-.-01/27/7802/02/7801/27/7801/27/78=01/27/7801/27/7805/23/7805/23/7805/23/7801/27/7801/27/7801/27/?801/27/7801/27/7805/23/7805/23/7801/27/78WS=W(l)+W(2)%%01/27/78WRITE(9>201)=-=-==-%%01/27/78-=----=--Paqe31
8.0DataAnalsisandSummariesThissectionofthereportcontainsgraphicalanalysisofdataobtainedduringtheconductoftheILRT.The'ILRTEST'rogramsummariesofaveragecontainmenttemperatures,pressures,andvaporpressures,andleakratecalculationsappearinSection8.2ofthisreport.Pasttestexperiencehasshownthattheinstrumentationpackageusedforthis'estisquitecapableofmeasuringtheleakrateaccurately,asevidencedbytherapidconvergenceofthe95Ãupperconfidencelimitoftheleakrateandtheexcellentcorrelationofresultsbetweenthe'TypeA'ndtheSupplementalTest.Theerroranalysisfortheinstrumentationsystempredicts+0.0195wt/day,andthistestcorrelateswellwithinthatinterval.8.1GrahicalAnalsisFigure'8.1.1isaplotofcontainmentweightremainingvs.timefortheTypeATest,theslopeoftheleast-squareslineisthecalculatedleakrate.Asecondlineisdrawnusingtheverticalinterceptoftheleast-squareslineandaslopecorrespondingtothe955upperconfidencelimitleakage.Alinecorrespondingtotheallowableleakrate(0.75L)isalsoshowntoillustratetherelativelywidemargin5ywhichtheleakagecriterionwasmet.Figure8.1.2isaplotofthecontainmentweightremainingvs.timefortheSupplementalTest.Theslopeoftheleast-squareslineisthecompositeleakagerate(L).Usingtheverticalinterceptofthisleast-squaresline,twoadditionallinesaredrawncorrespondingtotheSupplementalTestcorrelationlimits[(L+L+.25L)>L>(L+L-.25L0].Page32 4I.f>ik
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'fIy 8.2'LRTEST'roramSummariesD.C.CookUnit2,IntegratedLeakRateTestApril30-May4,19818.4.1FixedProramInformation~Pae8.4.2PressurizationRuns1P-25PSummaryofAverages8.4.3StabilizationRuns1S-31ASummaryofAveragesPreliminaryLeakRateAnalysis8.4.4'TypeA'estRuns1T-49TSummaryofAveragesTypeALeakRateAnalysis8.4.5SupplementalTestRuns1Su-13SuSummaryof'veragesSupplementalLeakRateAnalysisPage35 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HF.SULTSOFIHELINEARHIONANALYSISHVNWF.XPCHItiCNTALLEAKAGE.HATE.()PPCHLIMIT(CAKAOCHa'(CWI)PPFHWLOWERCONTAINMENTCONTAINMFNTWICCC0NOFIIS8RJ45/IUII12IJ141516I/Id19Zo2122232425262/ZH293031I00008l.nnuOJ0'99hs0999880~949630'99'910'99/10~999580.99961(1+99954U.999540~999400.999510'99560~999550'99630.9996Z0')99610+999800'99850999710'99/8Oe999680~999/50.999700~999460'99650'99/ZO.99961-0'07?6-026726-0'2300-0~62003-0~57978-O.438e8-0'8287-0'/062-0'J833-0'1941-0.29810-0.27152-o.Z!~e52-n23vlv~021993-0'0026-0F18296"016815-014814-0F12826-n.llS9o-o.lozes-0'9474-Oi0853?-0'7845-0.08120-0~07639-0~07005-o.oevzvFINaLLEAKAGEPaTE0~18/120'4V91-0'b991-0'bb98-0~J3200-Oe22206-0'1919-0'4045-O.ZJ33c-02J303-OoZZ530-0~cubRV-VS20044-0e18634-0~I/34J-0~Ibb19-0~IJ99/-OUI@770-0IIV&39-o.u84oe-0'/455>>0'6320-O.ob818-0~0>08/-0F04629-0.05102-Oou4820-0F04334-0'4230(%PLHOAY)=-0~04230I.OOOleI.noo21I~000J4I00093I.nnovoI00132IoooovlI~00048I00051I.ono48I~00053I.nnoe2I.nOOel1.000691,00069I.nonniI~000841.00085I~000831.000971.00085I~00095I.oon89I.oon94I00096I.ooln41.00094IooolloI~00095INTERCFPT=1.000080'99970~998520'98170~997790~997560~998230~998300~998300'98300998270~998360'98240'98270998340'98380.998350~998320~999090~999060~998850'98890'98790+998900'98760~998750'98740~9987'50~998670~999840~999760'99460'99190'99080~999060'98950.998690998540~998b40~998300.99817'0.997990.9976~0997660.99747099/44VS9973'5u.997270'97150~997050~996930~996940~996690'96730'96640'94690~996360.996240.99623UPPERCONFIOCNCELIMITFORTHCHATEIS-0'67?7Page38 SUMMARY0GESRUNllELANSEUIIHEAVGTEMPAVGPRESSAVGVPRESSAVGTEMPAVGPRESSAVGVPRESSAVGTEHPAVGPRESSUPPER.UPPER,...=.UPPER-,.LONER...LOWER...LOHER...]CK.ICE.AVGVPRESSICEI2356789101112131415]6]7]8192021222324250~01.002F002.50F00F005.006F007+008009.0010.0011.001200]3<<0014.0015.0016.0017F00]7<<5018.0018~So19F001'020.0069.]4]769625069.708769'49469,749569'86969A]6869'55769'58869'95669'19869<<907869'33369.961269'?7869'73669'95070.022870'340To.oe5869'08469.274869.212469'28469.15970~00~00~00~00'.0~00~00~00~00~00~00~00<<00'0<<0~000~025'80326'85726'29026<<79]826'73326.82542e.8]e726'550601'1307'9350~0590'12572'897.0~0523.071572.18410.0577'485721833.0~0=610.7735..72+]5690~0.590'40372'1690~0603'Z7972'7900~0609'247,72+]7530~0670.857872'1920~0659'61472'8770~0636191471'969.-.00608'6867]<<92080~01]1.93877l.eso6o.o0<<]335.7]<<8?8]..0~00<<]5807]<<73350~00<<]53071F66290~00<<]020..7]~59]3-00=0<<]]2271449525~16630110371'4892615860<<]095=.7]~3925Zb<<50450.107271269426.'76110.107271.117626'435==01072710603267962010687096982678620106470'595269257o.]2]eo.12eS0~12940<<]3030~13100<<]3200'344013340~]3040<<]2640~12160~11700<<]]290<<]090o.lo4e0F10100~0967=-0~09440~08980~08870~08740~085700847.0~08270~0819]6<<85040~016.8627<<0~01'5220~0]6+85840~01'793=0~01701970~01'0730~016~9747.-0~017~09340~017~09550<<01691560~0]680320~01'7250~016.75240~016'8940,016'2640~016~9594.0~0=]7+]78625'9321'7S226<<]83317~2175<<26<<532]17'70526'91417'44226.7741172955.268271]7~290326'1521'24026'5560<<52660~5330468~3?415]]<<]095537'050505.7419542'652516'?284200445372'06336426043]4<<8742244.08790~03210'6000~1549,.-015080'3450.03450~03210~03340~03450~03420~03360'348Page39 q<1>15'h<IY<s).5Vt.e>h('taa~r<i~~~)aee)<s1)1<)i)9)ii)IlHa>)e>7)7<Ph)iar"Ipea<<s31nr)calh$6<Ieiers<<r4>ie<<rehCae,ieIce>caieII5)<aii>I)"I('<>es,hes).<~>>)<le>r,~aiil,<e<iie~<~c>4~bi'sa>C.')~if,<~'>I<I<>7p>EIt~(ee~>4n.0<>necsea)A~<es>)0~~s>]).isn))who))~(io)7.5n)'l~(}n)l,h<1)4~O<s)4~pcl)h~5<>)Ca17.0011~>>>)>s~<io)IeC>n)aV.<.n)'1.5>I70~s><1r~I71~(ioP),h<~pr<I0ei(>7<.on)g~hes)ia~<>>1c>V6Il"r'<<pa.5if>s,ps-'.<a><<t>./</rsi>i,I])!<>~aIce/a<<iir;~5hrasinfera~Ca>h'>ia(p's,eilriar>~~37)>.6~a5cs~+e><<e>fsh,>-e>7><i(>~>0,3ifse~as<>9Its."1.3)66eee]%IS,'l<ahPI6~raIei<<f6.)'pc?<Ifaf>,'<ee].>cscp~,)hieI<Fii,3473ia(>,llgoC(>~79'If>f.!5~I)Hcl3ielCI,)'ebuCa6~jPr<75<6(s~r106(a(p~)31466~c<si>4Ci)~pi<94fa(i,)nh7tsf>r"s?95tcp~))HAF(i~)<<5'pi'ci~)a>foalCsfp~)e>91C6,)h76i(i,).<a<<Fh~)e>'.3>tFtpe))1'If<'>,I'>)0fsf>~Ce>]riiip~sarr>9r6.(/0)iefp~I')I>C6"173/apc>.II4<<Is<>h<arC>~r<ielehpis~tace)cer'i.,>>i,Ah)is~<5l7II,italrf.~Ia,)piapisttJef.i'ib'<)i,i'66277?.Cr)lee<a)Fh7>>b)%(s)ei~h)i>3pfi.<s))IP('ieI<)Qhi'fibc'.)77(i.b1c>]ps4.<'Si?0'erf>ihi047+.ts)753Pc-815)pht<1'IA76~81t'0i'f~014376F8)39?Ca~8176Pis~8c>c676.8)]376~<10P3?c>.805>3?i.<)0(1?hi<5074Pri8045PCi~8>oh7)Cs.an?776~8<)4676~<><1Ihph.)s(iPApc.8onppc~79'1376~/94<>?ha794/7I'i~7ascia>Pie~/9ho)ha79r"7/s~Ia?46pfi/a<ps<pi>~I'>74AV<>scIe>pl-c>$<<as<a)IP<>i'rsb<Is<.3'I<>~<>>I'190~s>>>lis<I,<,5>.C>&c>I0<>>l)80oit)e'>~<>>s)r0~'I>>0II0~01><e<0~<>I'>1(i~07'))0~0/91A,<I?e35s0~0/Hb0.01820~0/7'90.07770~0/7/n07680~076.>0.07hIn.075/o,07%10.07<>10.A/cpI0~0'I,jI0.67540.o7<><<0~015)0~0131f>~07400~0Iran0'7320~07350'7350~oIJ5o.<11350~0/350~<I/320t<1.<>lc)A.o/)1(i~0/)cs0.<>'I)<iAV<~(<rile)Ii<<5uI<i~),Ics>sI,>.)0).II<')03Ii1ae)lhI>>.<i<,)~I>>0IC>II>ie(~11MI<1~04)c?cii~cc>5>5)Iu0!i'30'I0~)!;ct<Io~04257!1~0)1/C>4~C>a>(sf>h9~99i!4Cs>~99ea)IO~0162(a9~Vt.01C>9'51469.960169.<ihn969.9<<h<<ip'99:<6'r?c>9~919's69'0H3C>9~(<94269~HHBC>69'49669'558>969.>55356'/857069.8i?926'9~>53ti/69.8299i>98?cs069.8)9><69'95h69~/90<>69~7880699i'9ii9i1715isY~IIi.'4c>4.lhi:Je>9~746>>i9/J1954./J/96'i~'I3/4aay,7)<]isi>~7)]eshV(is>sr)ha<(I><ch<r)r.~5<'3)<ri~0<)lr'C~I'sr'I'~>i)ca<<ris~>>)islar'.>~itr,'l'r.~H)sl;r'4~I')r'32h.I')'l.lc'<~>a1c>3P(s~><1'>3pf.>a)73P(aalt)re53ZhSa)a>1AH))Hi!Ci8oo'I76~H)(>726AH]07?6~Hn+I2/paHn47?Cp~Ho<a?.P6~Hf)'Pi?f.'o+a?fa5<e)4P?6,4077P6HA27)fHno'IPh79<<72f.799776.79/7Pf.797776i/912jj?i.~7947Zf7'97726.794226F7>>]7Zf~7947,Ph,7ali.'?.2f>~793726~785<7Pr,~7877pt.751<<6ph,7al77pF~7><I)pt>7>sr)I'3)6Ph~75)cac>?i~I>',jiaZh,I~<36i,o<>V85.1'~hI<~>at>ai'I.07('6<I~OInes0OIl>ci07(see<I07(l<<0~0I<ice0~07030,A7(eap4.<i'Io<O~Atsh'I<I~(i>s140Ots/(50~(1ti000~0(ajaiA.P619A.06)to0.Af>81n.06P)0.067900(stabo.n6840.(>686C>~Hot<6006H6n.06Ht,0.06920,06H8na069(0.0688<)~06H9n.06930~nt>92n.eh'>I<3.064]0.06<<J0.064/<1~064(>0~At>r>50'647n.06>a<<0.06<<o<1~Ah<a3n.n(.ii<<<1~(i64cpA.AC4)A.nt.ri<<<1~(i(>.)'90~ni4)0~(>Cire(hV<~I<Ie)P)CI)/~.)(si~iII.J(e>h1/43)J)I.<<o<i)1I~17<>.s)/~c>i>0!p)/~eeases)I.!>4)0)I~i>C)/~4i-><IS)'Iri.lr'i]I~46)J)I,<<9021/<<7i>4)Ic<<]611~!386111h7/>0]I.t15/]I~C>hr..p1/.842<<)Ia<<hi<911.<<.18111<<1'/9)/.:3()e1/~'i8311I~J97.1)I.J(.0J1/.2'?Ca(1/J4311'I~31(i(i)I..I))51/~3916]I.27hb11.3]581/.3o]11/.3)>351I~JS<<<41I.<<ce)5]I..I>~>cs1/~47<pZ1I~4?ca6]1~4<<6811.ei7)C]Ie'>9ca/11.<<o]h1/<<r11:]I.3i'5<J)7cap<<I'./>V(~IIe).64)(:),ts.l6<Ii.'+~IS.S.<Cs2<~H3))Ii)I>i)6~t)C>a<iCs>8)i>fp)t.Csp/<i',5>~8i?f>Ii?F~8i'I1Zi,~55)iePc.'<-ts).l)'<-.t<Z]7.i6t)i'.)c.'ta~81912<p.IS)7'I25'8)4/?ti~8)'pl2(.81iilZf.~8)h?2(i.814I26.8171Zii~80982('H10R2i<5108ZC.8045<2fi8084Z(i80653Zf8023if>~802HZc~80032fi~8004ih.7919Z6~79H42fs.7959?6.'1969Zf~7964(f~7914Zt.r9642.7964(ie~79i>4C.'67934c?fa~7'r04?.i-~790426./u)n(6'<<45)h.'I>a/0Zi.I>'u(I2h.lhth26.Ic<f>5hV(VI>4]:.<8>h)Cf.n.n3)nn.O.3)ii0.03)I0.A)ln0~0l<<60.0354A~035hA.n1)1n.nlaI0'3310.0.3?ep0.03?70~03'310~03340~<13340'33900l.'l90~nia)<In.n3c00~UJ41o.n.354n.n33(in.n3:lo00337.0'331O.o33no.n32i0'3100'31550'3400~03i>2n.nJZ)0a03'3'50.0331A.na?7n.n33100.3?I0~03080'311o.n3)(30'3i'7A.n33J0'333oioJ?r".n.0.3C.O0~03i'900327n.nl)10~0J)1Page40 kF'>tlt.TSOFIHF.L]ILhwkFG)>FSS)ONh:IALYR)r.Ix)-I~'t.lNlht.I.FAYI<GLlaAIf,I)I'PFkl.)!4)ILt.hhDGF.kn11.WI)I>>>r.t>ts'(><<F.I-C(iNIA)N>F)4TCON)A)N>>LN)]C];C{>NI)Ft)SFI>3l>ci'I>1>>]rlll)))4]Cs]6)7I><)97(ii>]??73?I4?raraCa?.7.cc<?s>I<)323)>I~'35';3/>;31'I>1I~>Ca(1c.)Cas>CatCsCaCa(iCa/caslCa'>(1~<)YU'),1(a~19I')ll(1,'j>>>>'>70~G>>9/<>n.>)9><2ri99<>><can.<>99'>n0~'>>>9'c'.<>9'>>Or..ail/9i4{1~>>l><>usa0~<>c)<?><1ct~9<>9110~>>us>fsC>(>~<>9<>/c)r'.>>91n(1,<isj>>'/5(1~C>9>>/rpli<jl)>s<>11~>>c)<>cs(n.'>9<>10(<~c>9<>I1(l~>>9>>10(>~>>>>>>1R(1~'>>><16O.<>9>>550~<><j>>(ar>0~>><>a/5(an.<>9<>4n(1~G>>941(a>>s)9l>I>ci~<>9<)>>><)~<>9<>63Q~>>>><<54{1">99h?11~>>Ct<>sj4(1~>>>>9>)V.>>>>960n9994I(s~'>9<<s0(>~c)9l1caca0~c>99cs>Ii~c)9<>caI{'>>9>><C>n~<><a<><slCi~>>9't'sI(1~<>Ilj<sI0bors/4-tl.2<~{>68n~)7<><j4-n.?7>>]f,-r..23c600~I9f>Ca4c>~)>>7/a-n~1'3<>-n.130<in011406-O.O'97>>?.-O.nb?hi0~t)8691-(1.0969C.-n.0970?-n.]04m-n.(l~l?H0~0'90?R-0'87?50~Q8h20-n~08?3?-n.o76?H-n~U72n>-h06<?>>3-n.nb7>>O-O.O7O33-n.of>806-n.(){<Hhr!-O.ntIc3-n.ne987-n.0683o-n.0665H-r..0642?0~06'.(%6-Q~(16]l3-{>Qenr>4-n.n58>>cn~0'>867Oa>>>76-n.o~986-n.neon)-n.0~9<4-n.n,<>>69-O.uf04?<1~n5>>40-n.Oct><4:1-n.ti-Ic>>!-Va]163)-0~08>>7'I-U~04563-rl,)I?H9-o.]62<jH,.-01JI'.jb-I)~09$6)3-0.09i?H.I-U.U909'I-0.(I/vt)b-Q.ueb?]-O.oh]ie-0~r?bi?74-Qao/332-o~u/6]]-U~0>3459-0.01'1>>v-0.07)9V-U~U1062-0.07112-u.06829-U~06203-0F06929-0~V5749-U~Ub635-0.059?4-U~Ob7c>4-0~Ubol<9-u.obt<?e-0~Vt>0<9)-0V'.>9>>2-O~UHH5(>-0~ube3)-O.ubh]u-0'5398-0'53<3/-U~ub2?1>-0~ubc>2'I-Q~06261-u~nb3930~U6414-Q~nb44.<0~ttb4<jl0u>54)-u~l>6453-u.ub.l7(a-u~bees></].rnorIn.>>>>><i71.norm.'I0.9>>>>G?n.>>>>>>c>c,].nr>non].nnnn>>>><)c)>>71.nunc>h).Onr>p7].r<nn)3).(>nnnk1.nounsn.9>>9>>c,)arm(i)30~<>>>l>c><j].Onn)~].nnr)l>>].non>>1].norm?1.1)nrlnc).nno]p1enein()P).nnnn>>].nnnohn~<<997].nnnol0~9>>li>>6.).nOnr?1)<>>>s)<>O)~onnlnn~9>>9>>9I.Otic>(>3n.9<>>>>31onnn40')>>99]).()nnn3n.9<)G>>4o~G>><>Gr>O.>>>>lin>>n.>>>><><>)n~<)C>9<>){1~i<cia)~>ca0~<>Cas)>s4n~>><><><<911~9<>~>l>)sC)~<><>l>ra<>0~9>>992l.uooain.9<</9U099'?HOOs9>>9810.999H)O>><>9>>ccl~9>>l/84n.999(.(i0s9>>912n.99913~0.9<>91?0~99<If>c>0.9995?O.9>>94nV.9'?9hlin.999610.9>>9560.999530~999<>2Q~99jc>H0999430o.9994n09"9350.999150'9'9370)>>9?R0,9>>92>3n.999()90~99'j]99>>9'IC<0.99940n~999<'>0~9'9944n.999.'ll>0.9>>9430'>>92'50.9992'~9<>914n~9>>9?5n.>>>9?1n~9'99?>s1>~c?>>9].lrl.9'?9?2(1~99/2{1U'>>>97?0~999t>1u~99'>440'99500'9>>i?30.999291?~999290~9991?os999]fU~99917U~999160.999U90.99896U~998'9c'.9988/-u.99R59u.998280'98510~99HC<?U.998520'9864r).9>>815U~99H780'98H30'?9865U.9981?0'98680'98800~998'520'9R590~9<j><550'9H350.99>3530'9HSO0'9H50U~9983);O.9c?8<,10~'998170~99H29u~998050'9HU)0~>>9197u~99/'?7u~9>>18(iu,>>9794U.'>9'1990.99><V3u~991'94I'.;/IIIn~nr>Fkn)F<is~tsrlaC;>>>fII;I1>r'II<>>&<aIPIIf{?1~lait."<n(F.c)'>c.'~1IR(1~nas'/Cl>~<IIvrFP]1>~>>99<>3Page41
SUMMARYOFESRUN0ELAPSEQTIMEAVGTEMPUPPERAVGPRFS5UPPF.RAVGVPRESSAVGTEMPAVGPRFSSAVGVPRESSAVGTEMPUPPER..LOWER..-LOWFR--==LOWFH---=ICEAVC>>PRES5ICEAVGVPRF:SSICE~I12367891011lz130~00F50I~001.50F00250F003.50F00F505.00S.bn6.00654948265921165'95665.965665'30465893365.P82865.904265.902565'30465.924265.~zee65'55726~781326'81726>>7778?6'78326775726I75326.f72326.771426'68826766726'667?64I65426'6240'7050>>07080~0708n.nvoo..00703=0~07050.07050'7080.07050~0705007050'7030~069569.666469'47869.esl869635769'39269.e41e69609169'1216'9.5984695950694594869.584269'94026'726ze.vvee26'691ze.veoe26.7671ze.veee26'6312676?I26'61626'59026'590?64757026'5400~06390~0641-o.Oele0~0623=0'6230'6240.06220.0624o.nezs0'6270'62So.nbzs0'62617'456175942174451717454e173863.17'786173872174472317'71117.422417414317.2215174447026'78126'78126'74626'75126'72126.771626~768126'67626'66126.763726'62226'6222676070'3270.03310'3350403030'3060.03180.03210.03220.03170'3240'3220~03270~032944>>lX1'(It4C>>Page42 I'
RUNEXPE.RIMENTALRESULTSOFTHELINEAPRE.ONANALYSISLEAKAGERATELEAKAGEwUPPERWLOwERwICEUPPERLIMIT,...RATE=CONTAINMENT=CONTAINMENT.CONOENSERIt34567810ll12130.999980'99950'99910'99920'99820'99730.999680'99570'99580'99590'9940-I~39701-0'0246-0'8909-0.21488-0.22165-0+25223-0'6284-0'8690-0'80170'6445-0'8030-0'5509-0'0993-0~14493-0.12636=Oe15421-0'8959-0F21035-0'3688-0.23981-0'2956-0'46310'99960'99870'99830'99880'99790'99700'99620999490'99500'99460.999320'9998IF000000999910'99880+99982=...0.999760'99770'99670999680'99610'9949I~00003I~00017I~00019lo000140'99980'99780'99750'99730'99701.000080'99SS..~1~FINALLEAKAGE.RATEl%PFROAY)=-0~24631INTERCFPT=I~00009UPPERCONFIOENCELIMITFORTHERATEIS-0~28030Pane43
9.0LocalLeakTestProram9.1PastTestResultsSummarLocalleaktestshavebeenconductedperiodicallyonUnit2inaccordancewithguidelinesspecifiedin10CFR50AppendixJ,theFSAR,andthePlantTechnicalSpecifications.Testingisperformedunderplantprocedure12THP4030STP.203,'TypeBandCLeakRateTest'.Theprogramconsistsof'TypeB'estsdesignedtodetermineleakagethroughthecontainmentelectricalandpipepenetrations,airlockdoorsealsandoverallairlockleakage,and'ypeC'estsdesignedtodetermineleakagethroughcontainmentisolationvalves.Table9.1.1summarizesthetestresultsforTypeBandCtestingperformedsincetheUnit2Preoperationaltest.Theleakagedetectioninstrumentationusedintheconductofthe'TypeBandC'estsiscertified,traceabletoNBS,andcalibratedprior'tothetests.Theinstrumentsconsistof4calibratedflowmeters,ofdifferentranges,connectedinparallel.Atestisperformedbyisolatingatestvolumeboundbythecontainmentisolationbarriersunderexamination.Thetestvolumeispressurizedto12.0psig.Aregulatorintheairsupplylinetotheleakratemonitormaintainsthetestvolumepressureat12.0psigwhiletheflowmetersmeasuretheairflowrequiredtomaintainthispressure.Thisflowisequivalenttotheleakageoutofthetestvolume.Exacttestpressureandtemperatureisrecordedandusedtoconvertthemeasuredleakagetostandardconditions.Table9.1.1TeBandCTestResultsSummarLeakageExpresseasFractionofL)TestDateAllowableTypeB0.147TypeC0.443TypeB8C0.6May1979Dec.1979May19810.00330.00410.01160.12610.20900.16330.1290.2130.175Table9.1.2showsthevalveswhichwerefoundtoleakinexcessoftheguidelineleakageduringthetwoprevioussurveillancetests,May-June1979andOctober-December1979.Thevalvesmarkedwithanasterisk(*)werealsofoundtoexhibitexcessiveleakageduringthemostrecentsurveillance,May1981.(See,alsoTable9.1.3).Table9..1.4liststhosevalveswhichwererepaired,duringtheMay1981surveillance,andalsogivesashortsynopsisoftherepair.Page44 Itshouldbenotedthattheguidelineleakageisnotanacceptancecriteria.ItisstrictlyaguidefortheTestEngineertouseindeterminingwhetherrepairsshouldbemade.Seventeenofthethirty-eightvalveswhichfailedtheTypeCtestwerefoundintheNon-EssentialServiceWaterSystem(NSW).Threeofthesevalves(checkvalvesNSW-415-1,NSW-417-1,NSW-244-1)havefailedthetwoprevioussurveillancetests,while9othercheckvalvesfailedthelasttest.Threeofthesevenairoperatedvalvefailureswererepeatsfromtheprevioustest.Thecheckvalveswererepairedbycleaningtheseatingsurfacesandreplacingthegaskets.Ifthecheckvalvehadaneopreneseat,theentirevalvewasreplaced.Theairoperatedvalveswererepairedbycleaningandlappingtheseatingsurfaces.TheothergroupofvalvesfoundleakingaboveguidelinevaluestheContainmentPurgevalves.Thevalvesinthisgroupwhichfailedwere:VCR-1018VCR-201Instr.Rm.SupplyVCR-1028VCR-202Instr.Rm.ExhaustVCR-1045VCR-204LowerCont.ExhaustITheInstrumentRoomSupplyandtheLowerContainmentExhaustPurgeValveshavefailedtheprevioustwotestswhiletheInstrumentRoomExhaustPurgeValvesfailedforthefirsttimein1981.Allofthesevalveswererepairedbycleaningtheneopreneseal,andthenlubricatingwithDow-CorningSiliconeIII.WhenVCR-104andVCR-204weretestedaftertheabovementionedrepair,theleakagewasstillexcessive(27,000SCCt1).Abeadwasthenweldedtotheedgeofthevalveflappertoincreasethetightnessoftheneoprenesealwhenthevalvewasclosed.ThisrepairreducedtheleakageinVCR-104andVCR-204to50SCCH.Page45 Table9.1.2ValvesAsFoundsccmAsLeft~sccmMay-June1979LeakageAsFound~sccmAsLeft~sccmOct.-Dec.1979LeakageNSW-415-1NSW-415-3NSW-415-4NSW-419-2NS-19-3NSW-419-4NSW-244-1NSW-244-25000Passed5000681PassedTesteAasnstWCR-930TestedAainstWCR-9345000.0Passed39,90014,00046,00024,00047,00047,0005,00037,00071862150764220NS-244-3NS-44-4NS-417-450002000PassedPassed14,00037,0008,00040,0002191001000CR-930CR-934CR-967WCR-901500050002000PassedPassedTestedAainstNSW-419-4Passed7400*WCR-909(CR-921WCR-933CR-9515000PassedPassedPassed8,000170005000240005618125137*WCR-952WCR-954*WCR-958WCR-961*VCR-101VCR-201VCR-103VCR-203PassedPassedPassedPassedPassed2000TestedAainstVCR-203600044140002400040025,000PassedPassed325TestedAainstWCR-95410000TestedAainstVCR-201VCR-104TestedAainstVCR-204TestedAainstVCR-204~VCR-204VCR-1056000301TestedAainstVCR-205410003000PassedCR-05ECR-18ECR-28CS-442-1SI-18920002472Passedasse5000105PassedTested38PassedainstECR-28SM-1N-102VCR-10VCR-115000360PassedTestedAainstVCR-114959975500PassedPassedPassed500VCR-20VCR-21N-160TestedAgainstVCR-21290.Passed1300Passedasse520Page46
~~I~~~~~~I'II'I'I'eI'III'lII~e~~IIIIII-~'.IIII'I~I~I~-~'.~e~~~~~-~'I~-~'.IIIIIII~~~~~I~IIe~'eel~~
4 Table9.1.3-TypeCFailures-May1981~~IAULLNudtVALVt.b------------OItill.I.fA<<AGLINf.XCfSS..~)t<fLfAKAGfVOLUtILDfSC>>IP)IONLfA<tAGfGutufI.Ir<F.ISCCHILLAInrif.ASfQU<<DISCCHILfAICAbfASLf.tItSCCHICI.VIIISW-415"IAt<DMelt-903CVN-I'I<2lCUVINSM".<<lo-IANDMelt-.922CI'II-.2bcuv4NSW-,I)-4ANDMCtt-')34CIN-ehltCI'NSM-24<<-IAt<0'MCI<-945CVtt-26IICPIMCII-95IANDMelt.-.955.,CI!tt:26ltcl'Nsw-2444ANDwet<-')hllcPN-uhIICV4WCR-954ANI)MCII-95uCI'N-uhCLV.2NSM-.<<l5"2At<D.MCA=9OD.CPN=i.'2CLV3NSW-hl5-3ANDMCII-9lICPtt-23CLV3MCN-')U')AttuASCII-')I0CI'N-23CUV2.r<SM-hl9-.2ANDMCI<=926.Cl'N=27....CUV3NSW-4I9-3ANUMCI<-')30CI'N-u5CUV3WCI'I-929At<0Wert-93)CVN-45IICI'NSM-2!<9-2ANDMCII-.')46CI'tt-.27NCI'WCI<-952ANDWCII-')56CON-27INSII<~i<Hat.A'SItlSM-4l7-h<MCN-963CPN-73IttslltoI'IM.MLSIt<SW-.OI7;3<MCII-967CPtt=73Ir<STII.I<H.Iul<GfSUPI<LYVert-tut,aalINSIII.I<H.fA>>AUST'CII-I02,iu2IIUIIGflLowfltPut<<iftl<tlVCll..lao~204CPN.63Itft.lffvl.vt:.<loo.Iovltrsl-luucl'lt-I5All<IAIII/I<AUGASHO>>lJul<St<"ICVN-3l4<la,UU2000+00360.00i2ooo,uo360~00.............t..2000~00360.UO360F002000~UU2000F00../20.00.........>..2000,0U,I20,002000.00720.00,+2000F00400.00:.....t2000F00,400F00i2000.0U400,00>2000.uo3boF00.....C,2000F00360F002000.UU240qua+20UU~Uo.240.00....}.20UO.UU.l6UUF004470blleuU.UOi<<0000.00......-..3600~00Ii'.0~0060.00...>r<oooa.ou.<<UI~672340~Uu720.0029')43.55..<<uu.ao.....)502.uh0~0.35.la2u')0~I60~u)0.050~0239,320~00+0ISl.23I.996.2<<6<<,rlu0'Ooo0~Ua.o0+024tl<<20<<o6)49.77hut,e72340ou.N-.ZAt<Dvt.rtlIIDIIFul<IICD1NIDU<DCII=2UI,.......,-'.........I2000......v2000.0U.AUPage48
(,Table9.1.3Continued-;IAt)Lt.NU4tVALVESSIIOMlttGLEAKAGEINCxcfssUII)It,GUIUELINf.I.EAKAIif.VOLUHCOCSCH)PIIOII,.LCAKAGt...,....,.LEAKAGt:GIIIOELIt)EASFOUNDISCCHIISCCH)I.faKnGE.....ASLEFIISCCH))<littIlf.CINCILtICH305CPN45I)CIUFLIN)iCAVeOIIAlttSF-l59~l60CPN-42CLVANOCUVOIIAIN)ID)IOCII-62U162)Cf'N-3lEUNIsut)PIoIIUI~5oct)-600e60lcl'N-4IIUIIU~00l390F00)360F00>2000F00l20F00l290~70360+00...,...,740~59...,0'.740.5').l390F000~0ItCUISAHI'Lt'.NCII-I00eI0ICI'N"0IalttI'nul/ItnuGasHut)lionEctl-33cPN-3l60F00l40l~32I401o32..:60~00..........II9'9.....II9~8$AIHI'nttl/Ital)GASHutttC)l-Jl)32CPN-32CUNAIIIluCut)1~AC)I)02tI03CPN=29I20IOO,3303~I2l20~00...=...399~25...3303'2.399'5tt"2IOI'AlIiCft-30IUOltONINJ~ICH-250CPN-74CPN"4445.0nl)9.712tn.oo>40000.00I)9+7799.62LC)tIOCI'NCOII.S2e5CC)t-243-25CPN-25CC>t10Cl'tICOILS2s5CC)I-244-25CPN-25CC)t'IOCI'NCOILS3~4CCII-244-72CPII-7260.00.6000I009~57007~6660+00IOO)o700.0Own250'7CCMFIIOHCEI)-ICCH-43lCCwIOCtt)-2CCI~-n32CC)tFAOHCEO-2CCII-433CPI~-25CPN-12CPtt-1290F0090,00l24.76I19~6690,00...>.?000.00Oen0,00~0Page49 Table9.1.4LeakRatesofContainmentIsolationValves,andCorrectiveActionsTakenValveNSW-415-1NSW-419-1NSW-419-4NSW-244-1WCR-951WCR-948WCR-958NSW-415-2NSW-415-3WCR-909NSW-419-2NSW-419-3WCR-929NSW-244-2WCR-952NSW-417-4NSW-417-3AsFound~SCCM30,000.01,500.02,000.02,000.02,000.02,000.02,000.02,000.02,000.02,000.02,000.02,000.02;000.02,000.02,000.02,000.02,000.0Page50AsLeft~SCCM0.035.02100.00.010.00.0240.00.00.0650.02000.065.00.00.00.00.00.0CorrectiveActionReplaceddisc,replacedgaskets(SJO-07592-4)Cleanedseatingsurface(SJO-07592-1)Cleanedvalve,replacedgaskets(SJO-07592-12)Cleanseat,replacegaskets(SJO-07592-13)Lapseats.replacedgaskets(SJO-07592-14)Lappedseat,replacedgaskets(SJO-07592-16)Lappedseat(SJO-07592-17,39)Lappedseats,replacedgaskets,disc(SJO-07592-9,45)Replacedvalve(SJO-07592-3,40)Cleaned5replacedgaskets(SJO-07592-2)Replacedvalve(SJO-07592-5,41)Replacedvalve(SJO-07592-6)Lapseats,replacedgaskets(SJO-07592-7)Replacedvalve(SJO-07592-10)Cleanedvalve(SJO-07592-11)Lapped,replacedgaskets(SJO-07592-33,48)Lappedseat,replacedgaskets(SJO-07592-32)
'
Table9.1.4ContinuedValveAsFound~SCCMAsLeft~SCCMCorrectiveActionVCR-101,2014,500.0VCR-102,20240,000.0VCR-104,20440,000.025.0205.050.0Cleanedinternals,tubedwithSilicone111(SJO-07592-42)Cleaned,lubedsealwithSilicone11(SJO-07592-49)WeldedS.S.tovalvesoitwouldseatagainsttheneopreneseal(SJO-07592-43)SM-1N-160DCR-620DCR-621SF-159ECR-33ECR-31,33CCW-243-25CCW-244-25CCW-244-72CCM-431CCM-432CCM-433NSW-244-42,340.12,000.0~1,300.01,300.02,000.01,400.03,300.01,000.0800.01,800.02,000.0125.0180.02,000.02340.00.0TestedAgainstDCR-6210.00.01400.03300.00.00.0250.00.00.00.00.0Cancelled(SJO-07592-31)Lappedseatandcleaned(SJO-07592-46Cleaned,bluedseat(SJO-07592-24)Cleanedandbluedseat(SJO-07592-25,50)Replaceddiaphragm(SJO-07592-27)Cancelled(SJO-07592-28)Cancelled(SJO-07592-29)Replacedseats(SJO-07592-22)Replacedseats(SJO-08592-23)Installednewdisc,lappedseat(SJO-08592-21)Lappedseat,cleaned(SJO-08592-18)Lappedseat,cleaned(SJO-08592-19)Lappedseat,cleaned(SJO-07592-20)Replacedvalve(SJO-08592-15)Page51
Table9.1.4ContinuedValveCTS-131-WAsFound~SCCM15.491CCMAsLeft~SCCM0.0CCMCorrectiveActionCleaned,bluedseat(SJO-07592-34)CTS-131-E3.853CCM0.861CCNCleaned,bluedseat(SJO-07592-36)ICN-25040,000.00.0Lappedseat(SJO-07592-51)Page52
9.2Hay1981LeakTestResults0,C~COOKNUCARPLANTUNITNO~2TYPE"8"AND"C"LEAKRA)ETFSTOFCONTAINMENTISOLATIONVALVESDURINGAPRL1981OUTAGETY)E."8"DATAINFORMATIONTtSTVOLUHECOHPLtTEDTESTVOLUHFSOESCRIPTIONGUIDELINELEAKAGECORRECTEOLEAKAGETRIALNOWHENVOLUHEPASSED12345710PERSONNELAIRLOCKS612'L~CPN-N/APERSONNELAIRLOCKS650'L~CPN-N/AZONE3PENETRATIONSltttCTf?ICAL)CPN-N/AZONE4PENETRATIONS(HECHANICAI)CPN-N/ABLINDFLANGE-FUELTRANS)'tRCPN-IBLINDFLANGE-PLANTAIRTOCONTCPN-29BLINDFLANGE-ICE,LOADING.CPN-57BL'INDFLANGE-ICELOADINGCPN-BOERBLINDFLANGE;-FLUXTHHBLtHANDLECPN76BLINDFLANGE-SPARE(UNIT2ONLY)CPN-67551105511'1173.0)173+0120001200.0480'720'960'240'58~0I~00'171.7850.00'0'120+I74'0'IIIIIII1IIPage53 o~+"4~~o~"D~I:~COOKNUCLEARPLANTeUNITNOTYPE"8"AND"C"LEAKRAIETESTOFCONTAINMENTISOLATIONVALVESDURINGAPRL1981OUTAGETYI'F."C"DATAINFORMATIONTESTVOLUME,OESCRlPIIONCOMPLETEDTESTVOLUMESGUIOELINE1.EAKAGECORRECTEOLEAKAGF.TRIALNO'WHENVOLUMEPASSED12345e7891011121314151617181920?I2223242526272829.30313233343536373839404143CLV1NSW-415-1ANDWCH-903CPN-17~21CLVIWCR901ANDWCR-'902CPN-17UZICLV4NSW-415-4ANOWCH-915CPN-sOi24CLV4WCR-913ANDWCH-9145CPN-ZQ)24.CUV1NSW-419-1ANOWCH-9?ZCPN-26CUQIWCR-921ANUWCH-923CPN-Z6CUV4NSW-419-4ANDWCH-934CPN-84CUV4WCR-933ANI)WCR-935CPN84RCPINSW-244-1ANOWCH-945CPN-26RCP1WCR-951ANOWCH-'955CPN-26Rcp4Nsw-244-4ANDwcH-94HcpN-84RCP4WCR-954AMI)WCH-958CPN-84CLV2NSW-415-2ANDWCH-906CPN-22CLV2WCR-905ANDWCH-907CPN2?CLV3NSW-415-3ANDWCH"911CPN-23CLV3WCR-909ANI)WCH-910CPN-23CUV2NSW419-2ANOWCH-926CPN-27CUV2WCR-925ANI)WCH-927CPN-27CUV3NSW-419-3ANDWCH930CPN-85CUV3WCR-929ANDWCH-931CPN-85Hcp2Nsw-244-zANDwcH-946cpN-27RcP2'wcR-952ANDwcH-956cPN-27Rcp3Nsw-z44-3ANDwcH-947cpN-BsRCP3WCR-953ANOWCH-957CPN-85INSTR~RH~EASTNSW-411-4WCR-963CPN-73.INSTR'M~EASTwcR-961~WCH-962CPN-73INSTR'H,WFSTNSW-417-3iWCH-967CPN-73INSTR.RH.WESTWCR-965~WCH-966CPN-73.INSTR'HPURGESUPPLYVCH-101F201INSTR'HEXHAUSTVCH-102~?02IPUHGE)LOWERPURGESUPPLYVCH-103'03CPN64LOWERPIIRGEEX'CR-104t204CPN-63UPPERPURGESUPPLYVCH)05ti05CPN59UPPERPIIRGEEXHVCH-lob206CPN60PRESS~RELIEFPU>eEVCH-10I~207CPN-65HYn~RETURNLINEtCH-lotZOCPN95HYDESAMPLEECR-11F21CPN-95MY'AMPLEECf)-IZ~ZZCPM95HYD.SA~~LEECR-I3.23CPN-95HYn.saMpLEECR-14.24cpN-93HYD~SAMPIEECRlent25CPN95Hvo.5AMpLEEcR-le.26cpN-93HYO~SAMPLEECR)7+27CPN937?0~0720'720'720'480'480'480'480'360'.360'360'360',7?0'720.0720+0720'480'480'480'480'360'360'36Q~0360'.240'240'240'240'leBO.Oleoo.o2880io3600.03600oo2880'1440'eo.oeo.oeo.o60'eo.o60'eo~0eo.o0~0.350+3149+40~035'99'2090'99'0'.10~00~0239'..0~0.185.20+0651+21996.20~064~9=0~00'Oio0~00.00'Oeo0'90'24'204F679549'124.2794'0'0'48'Qio0~039'0'0~00~02I1I2I2I222331323I32213I2I2Page54 4o"~"DCDCOOKNUCLEARPLANT~UNITNP2~o<<>>~oooTYPE"8"ANO"C"LEAKRn(ETES)OrCONTAINMENTISOLATIONVALVESDURINGAPRL1981OUTAGETYPE'C"DATAINFORMATIONTESTVOLUHEOFSCRIP'(IONCOMPLETEDTESTVOLUMESGUIOELINELEAKAGECORRECTEOLEAKAGETRIALNOWHENVOLUHF.PASSED44454e474849505152535455sesr585960ele26364esee67e869707172737475767778798081828384858eHYO~SAMPLEECR-Jr)~28CPN-93HYO~SAMPLEECH-IVAN29CPN"93HCP-ISEALWATERCS-442-1CPN-11RCP-4SEALWATFHCS-442-4CPN-14RCP-2SEALWATFPCS-442-2CPN-12RCP-3SEALWATFP.CS-442-3CPN-13RELIEFVLVE.HDR.ToPHT.S1-189CPN-ISAIRPART/RADGASHONITOHSH"ICPN-31N-2TOACCUHULATOHSN102CPN-32N-?TOPRTN159CPN-74PRIMARY'WATERTOPHTPW"275CPN-33CHGTOREGENHEATEX's-321CPN-35DEADWEIGHTCnLI8.Nlx-151-VlCPN-30GLYCOLSUPP(YVCH-10~llCPN-86GLYCOLRETURNVCH-20y2iCPN-56N-2ANDVENTHDRl'ORHCUTUCR-203e207N-2ANDVENTHORFORHCUTN160~OCH-201ICF.CONDAHUDRAINHUHUCR-610'11CLVANUCUVDRAINHOHU(H-620'21CPN-31RCDTORAI)lHDHOCH-205rcveCPN-40CONTSUMPTOHUT'SOCH-600bolCPN-41RCSLETDOWNOCR-300CPN-34HCPSFALWATERRElURNOCH-250350CPN-37RHRHECIRC~E'CM-305CPN-45RH(rRECIRC>W'CM-306CPN-46pwFDHRxcnvscHow209(212).2lo(21llREFUELINGH20RXCAVSFISI(152)rl53(154)REFUFLINGCAV~DRAIN5)'-159eleoCPN42HOTLEGsAMPLESNCH-IobiloeCPN-eePHFSSLloSAMPLE.NCR-107.108CPN-eeSTEAHSAHPLENCR-109~llvCPN-eeRcoTsnMpLERGR-)vo.loicpN-81PHTsAMP(EDcR-202i204cPN-81ACCUHSAHPLESICP-5~6CPN-81AIHPAHT/HAOGASMONITOHECH-33CPN-31'N~SIPPOISCHeICM"26VCPN-43(68)'S'IPPOISCHICM-265CPN-68(43)AIRPAHT/HAOGASMONtcH-31~32CPN-32CONAIRTOCONT~XCR-100~101CPN-74CONAIHTOCONT~XCH-IOZe)OJCPN-29N-2TOPRTGCH-301CPN-74N-2TOACCUMULATORSSV-101'CR-314SITESTLINESIIll~I/2t194CPN3260'60'120'120'120.0120'120.0eo.o60'45'1800180'30'480'480'120'120'300'120'480'3600120'480'1080.01080'120.0300'360'eo.o60060'60'60'eo.oeo.o240'240'120'120'120'45F060.0270'26.719F80025.420'30+5401~9-.=--2340.10~00~0Ioo2eo.e0~00~00~025'0~010.00~0.....0~0'748~60~0sory01390'105~0=-.--0'0'000'0~00'119+90~00~01401'0'49'3303.10'399'119'0~00'Page55 DECDCOOKNUCLFARPLANTeUNITNo+2>>O4oooooTYPE"8"ANO"C"LEAKRATETESTOFCONTAINMENTISOLATIONVALVESOUHINGAPHL1981OUTAGETYPE"C"OATAINFORMATIONCOMPLETEDTESTVOLUMFSTESTVOLUMEOESCRIPTIONGUIOELINECORRECTEOLFAKAGELEAKAGETRIAINOWHENVOLUMEPASSEO87888990919293949596979899100101102103104105106107108109110lllll?113114115116117118119PWTOPRTNCR-252CPN-33CCWFORHCPOILCLHSCCM-452'54t458CCWFOHRCPOILCLHSCCM-4bli453t459CCWFOREXCESSLUMXCCH-46046ZCPN-75CCWFOHRXSUPPOHISCCH457~CCW-135CCWFORHXSUPPORTSCCH-4bb~456CPN-82GRABSAMrLESM-4~6CPN-92'CONTPRESSAD8ISOLPPP-300CPN-94CONTPRESSAiBISOLPPP301"6N-92CONTPRFSSAiBISOLPPP-302CPN-91CONTPHFSSA8ISOLPPP-30JCPN-96CONTPFFSSALARMPPA-310311CPN-97CONTVHFSSALARMPPA-312'1JCPN-98BORONINJeICM-?50CPN"44BORONIN'CM-?51CPN-44WELOCHANtlELPRESSCA-181SCPN-83wELOCHANNELPRESSCA-181NCPN-83GRABSAMPLESM-8+10CPN-89CCWTOCPNCOII.SZe5CCw-243-25CPN-25CCWTOCPNCOILS2'CCW-244-25CPN-25CCWTOCPNCOILS3'CCW-243-72CPN-72CCwTOCPNCOILS3e4CCW-244-72CPN-72CCWTOCEO-ICCM-430CPN-25CCWFROMCFO-ICCM-431CPN-25CCWFHOMCPNCOILS2~5CCH-440CPN-25CCWTOCEO-2CC<-432CPN"72CCWFHOMCEO-2CCM-433CPN-72CC'WFROMCPNCOILS3e4CCH-441CPN-72GLYCOLSUPPLYEXP'-Ibetl'~9CPN-86GLYCOLRETURNEXP'-Ibl)158CPN-56POSTACCIOENTSAMPLINGRETUHNCPN-67POSTACCIOFNTSAMPLINGSUPPLYCPN-67POSTACCIOENTSAMPLINGH-II/IZCPN-3218001200'1200'360'240'240060'ooo0'0'000~0.0~0-240~0240'30'30'eo.o60'60'eo.o60'90F090'90090'90'90'eo.oeo.o30'30'eo.o139~779~699'1197159~7109'74'.0'0~00'0'0'.49~8-..99~60~00'0~05'0'.0~00'250.50'000~00'0~035.00~00~024'90'0'Page56 0~C~COOKNUCLEAPIANT~UNITNP~2++++++++4+TYPE"8"ANO"C"LEAKPAlETESTOtCONTAINHENTISOLATIONVALVESOURINGAPRL1981OUTAGECONTAINMENTSPRAYCHECKVALVFSCHECKVALVE,STARTTIMEFINISHIIHFSTARTELEVATIONFINISHELEVATIONLEAKRATETOPASSLEAKRATEACTUALDATETESTEOSUPPLEMtNTALJOBVROUW,RCTS-127E.CTS-127WCTS"131ECTS-1318CTS-131WCTS-131W12-'l12:ll12:119:012:ll9:016:I)16'-ll16:1113:016:11IO:0634F000634~OOV640.000640~OOV640F000640~OOU634F000633'90639'06640F000639'22639'7921'1022'50F000F0003'303'30-0~0-0i2373'530'15'9108613-?73-273-274-203-274-203634Page57 DC~COOKNUCLE.ARPLANT~UNITNOTYPE"8"ANO"C"LEAKRATF.TESTOFCONTAINMENTISOLATIONVALVESDURINGAPRL1981OUTAGELEAKRATF.SUHHARVSCCHLAIYPEs>8nTYPF."C"1275.6S19423.070'116.0+1762TOTAL20698F7101878COHPLLTIONRATE,SUHHARYTOTALTESTEDINITIALLY-129FAILEO"30PASSED-99TOTALRETESTEO-30FAILEO-0PASSED-30OUTOF129VOLUHESTOTFST~0STILLHAVETO8E'TESTEDOVERALLCOHPLETIONRATE.IS100F00'5Page58
10.0REFERENCES
10.1DonaldC.CookNuclearPlantFinalSafetyAnalysisReport10.1.1InitialLeakageRateTestingofContainmentSection5.2.110.1.2ContainmentLeakageTestProgramQuestion5.93,AppendixQContainmentIntegratedLeakRate(TypeA)TestingQuestion022.14,AppendixQ(Unit2)10.1.4LocalLeakRate(TypeBandC)TestingQuestion022.15,AppendixQ(Unit2)10.2DonaldC.CookNuclearPlantUnitNo.1TechnicalSpecifications10.2.1ContainmentSystems-ContainmentLeakageSpecifications:3.6.1.2SurveillanceRequirements:4.6.1.210.2.2ContainmentSystems-ContainmentAirLocksSpecifications:3.6.1.3SurveillanceRequirements:4.6.1.310.3AmericanNationalStandardsInstitute(ANSI)10.3.1ANSN45.4-1972'LeakageRateTestingofContainmentStructuresforNuclearReactors'0.3.2ANSN274DraftNo.1,'ContainmentSystemLeakageTestingRequirements'0.4CodeofFederalRegulations,10CFR50AppendixJ,'PrimaryReactorContainmentLeakageTestingforWater-CooledPowerReactors.10.5DonaldC.CookPlant,Unit2'ReactorContainmentBuildingIntegratedLeakRateTest(Preoperational)TestReport'.10.6DonaldC.-CookPlantSurveillanceTestProcedures10.6.112THP4030STP.202,'ntegratedLeakRateTest'0.6.212THP4030STP.203,'TypeBandCLeakRateTest'0.6.312THP4030STP.204,'PersonnelAirLockLeakageTest'age59 g,.tI0 AttachmentNo.1toAEP:NRC:00500EAdditionalIni'ormationonHydrogenMitigationandControlDonaldC.CookNuclearPlantUnitNos.'and2.SupplementtoAEP:NRC:00500C 1.0DistributedInitionSstemDISInstrumentRoomIsolationOurreviewofthecommunicationpathsbetweentheinstrumentroomandthelowervolumesubcompartmentshasrevealedthatlimitedcommunicationexiststhroughseveralsmallopeningsandanumberofpipesleeveswhicharenotsealed.Therefore,theDISdesigndescribedinAttachmentNo.2'oourAEP:NRC:00500Aletterhasbeenmodifiedtoincludetwo'additionaligniters(onepertrain)intheinstrumentroom.Thesetwoadditionaligniterswillbeinstalled~,}nUnit1duringthecurrentrefuelingoutageandinUnit2duringthenexticeweighingsurveillanceshutdown(late1981)(SeeSection3.0belowforadiscussionofClasixresults).Thus,theCookPlantDISwillemployatotalofseventy(70)ignitersperUnit.1.2DISTechnicalSecifications,2.0ProposedTechnicalSpecificationTable3.6-1A,submittedbyourAEP:NRC:00500CletterdatedMay29,1981,hasbeenmodifiedtoreflecttheadditionoftwoigniters(onepertrain)intheinstrumentroom.RevisedpagesreflectingthischangeforeachUnitoftheCookPlantarecontainedinAttachmentNo.4.IceCondenserInsulationsTheicecondensersinCookUnits1and2areverysimilartothoseinMcGuireandSequoyah-.,However,,insteadofpolyurethanefoam,fiber-glassencapsulatedinpolyethylenebagsis'mployedintheCookUnitsforinsulationpurposes.Theinsulationis'ocatedbetweenthecon-tainmentwallandthecranewallandtheairhandlingducts,andiscoveredbygalvanizedsteelsheetswithjointsbetweenpanelssealedtopreventvaporpenetration.Fiberglassexhibitsverystablematerialcharacteristicsevenathightemperatures.Existingdataindicatethatfiberglassbeginsto'soften(1)atabout1350oF,andthatsignificantdecompositionisnotexpectedexceptatmuchhighertemperatures.Theothercomponentwhichmakesuptheinsulationassembliesispolyethylenesheets.Thethicknessofthesesheetsisabout6mils.Reviewofexistingliteratureonthethermophysicalpropertiesofpolyethyleneshowsthat.significantdegradation(greaterthanafewperceptperhour)hasbeenobservedattemperaturesinexcessof700oF<).Theenergycontentofpolyethyleneisreportedtobeabout1.3x104BTU(3f P~J~At1I0 RecentanalysisperformedfortheCookUnitsusingthemodifiedCLASIXcodepredictsupperplenumtemperaturesofapproximately1100oFforshortdurations(seeAttachmentNo.2).Burnsintheupperplenumexistfornomorethan10seconds.Theshortestintervalbetweenburnsisapproximately60seconds.TheCooktemperatureprofileoftheupperplenumgeneratedbyCLASIXissimilartothatofSequoyah.UsingtheCLASIXresultsattheupperplenumastemperatureinputs,TVAhascalculatedtheheat-uprateofequipment,suchasigniterassemblyboxandcablewithinconduits,intheregionandfoundthattheinsidesurfacetemperatureofthemetalcasingdoesnotexceed270oF.Therefore,itisreasonabletobelievethat,duetothesimilaritybetweenth'etransienttemperatureinputdataforCookandSequoyah,theresultsobtainedbyTVAcanbeusedasagoodapproximationfortheinsidesurfacetemperatureofthegalvanizedsteelcoverontheinsulation.Giventheseconditionsattheupperplenum,theinsulationbehindthesteelcoversisnotexpectedtobeexposedtotemperatureswhichmightleadtosub-stantialamountofpolyethylenedegradation.Calculationoftheenergycontentforallthepolyethyleneintheupperplenumrevealsthattherewouldbeabout7x106BTUre-leasedintothecontainmentevenintheunlikelyeventofitscompletedecomposition.Thisamountofenergyis.lessthanfortypercentoftheenergycalculatedbyDukePowerforthe'ntermediatedeckdoorsandislessthantenpercentoftheenergygeneratedfromhydrogencombustionforatypicalCLASIXanalysis.Moreover,basedontheheattransfercalculationsperformedoninsulationheat-upintheice-bedregionbyDukePowerfortheMcGuirePlant,thetemperatureofthesurfaceadjacenttotheinsulationisestimatedtobeabout370oF.DuetothesimilarconfigurationoftheCookandMcGuireicecondensers,theheattransferresultsreportedbyDukeareapplicabletoCook.Hence,thepolyethyleneintheice-bedregionoftheicecondenserisnotlikelytoexperiencesubstantialdegradationunderthesepredictedconditions.Therefore,despitethefactthatadifferenttypeofinsulationisusedattheCookicecondensers,itappearsthatthepotentialimpactofinsulationdegradationonthecontainmentissimilartothatofMcGuireandSequoyah.3.0CLASIXCodeResultsAttachmentNo.2tothissubmittalcontainsthepreliminaryresultsofaCook-specificCLASIXanalysisutilizingpassiveheatsinks,afanflow/headcurveandaseparatenodalvolumerepresentation ~IV@I (p~I.oftheicecondenserupperplenum.Thisanalysisindicatesthatthepeakpressureduetohydrogencombustionremainsbelowthecontainmentdesignpressure.Asexpected,nocombustionoccurred,intheuppervolume,thefan/accumula'torrooms,or'hedead-endedvolume.Atotalofthirtyseven(37)burnsarepredicted;seveni.nthelowervolumeandthirtyintheupperplenum.Slightlylessthanonemillionpoundsoficeremainatthecompletionofthetransient.4.0ContainmentAirRecirculation/droenSkimmer(HYS)FansVTheresultsoftheCLASIXanalysismentionedinSection3.0indicatethatmaximumdifferentialpressurebetweenthefan/accumulatorroomanduppervolume'of2.5psi;withthehigherpressureexistingintheuppervolume.Inthecours'eofourinvestigationofthefansurvivability,'ehaveidentifiedapotentialfailure'echanismduetothepossibledevelopmentofadifferentialpressureacrossthe'fanhousingwhentheuppercompartmentpressureisgreaterthanthefan/accumulatorroompressure.Insuchcasethefanhousingcouldcollapse.l<eareinvestigatingvariousmodificationstotheHYSfanswhichwouldeliminatethisconcernandwillreporttoyouonthescheduleforthecompletionoftheselectedmodificationsinalatersubmittal.
References:
(1)Baumeister,.T.,etal,'StandardHandbookforMechanicalEngineers,'cGraw-Hill(2)Madorsky,S.,'ThermalDegradationofOrganicPolymers,'nterscience,1964(3)Tewarson,A.,etal,'CategorizationofCableFlammability,'PRIReportNP-1200,Part1,1979(4)'ResolutionofEquipmentSurvivabilityIssuesfortheSequoyahNuclearPlant,'VA,May1981 I~o<g4I AttachmentNo.2toAEP:NRC:00500EAdditionalInformationonHydrogenMitigationandControlDonaldC.CookNuclearPlantUnitNos.Iand2CLASIXCodeAnalysis ~-l%,~i TABLE1CookCLASIXInputMARCHReactorCoolantMassandEnergyReleaseRatesS2DSuenceTime(seconds)0.021722478318038044428475257006012696070627206.,H20MassReleaseRate(1bn/sec)197.2190.544.8553.5334.8221.4048.4219.4214.075.2534.7184.060H20EnergyReleaseRate(Btu/sec)1.167x101.097x105.230x106.547x104.262x102.842x105.558x102.182x1041.583x105.989x105.388x104.693x10 Il TABLE2.CookCLASIXInputMARCHHydrogenGenerationRatesandTemperaturesS2DSuenceTime(seconds)0.03480380441164428475257006330664869608070HMassReleaseRate(1hn/sec)0.00.00.04130.2600.7401.070.4300.2230.1600.1170.0367H2Temperature(F)6161671582795771612555535519519 I'kVe TABLE3CookCIASIXInputMARCHFissionProductEnergyReleaseRatesS2DSeuenceTime(seconds)0.0381041164428475253767080EnergyReleaseRate(Btu/sec)0.00.018034800670870007135 Il,I0 TABLE4CookCLASIXInputBurnParametersLowerCompartmentIceCondenserLowerPlenumIceCondenserUpperPlenumUpperCompartmentDeadEndedFAN/ACCRegionRoomsHydrogen7FforIgnitionVHydrogen/FforPropagationHydrogenFractionBurnedMinimumOxygenPFforIgnitionMinimaOxygenPFtoSupportCombustion0.080.080.850.050.00.080.080.850.050.00.080.080.850.050.00.080.080.850.050.00.080.080.850.050.00.080.080.850.050.0BurnTime(sec)*13*Basedonaflamespeedof6ft/sec. TABLE5CookCLASIXInputComrtmentInitialConditionsVolume(ft)3Temperature(F)02pressure(psia)N2pressure(psia)H20pressure(psia)LowerCompartment249/6811103.1411.670.19IceCondenserLowerPlenum24700323.1811.810.OQIceCondenserUpperPlenum47010323.1811.810.UpperCompartment681283753.1711.770.06DeadEndedRegion61105983.1611.710.13FAN/ACCRooms548281103.1411.670.19 TABLE6CookCLASIXInputFlowPathParametersMinimumFlowArea(ft)LC-LPLP-UPUP-UPUC-LCDE-LCF/A-LC******224030'lowLossCoefficient2.053.041.451.54.24.2BurnPropagationDelayTime(sec)*0*Basedonaflamespeedof6ft/sec.**Functionofdooropening. TABLE7CookCLASIXInputIceBedParametersParameterInitialIceMassInitialIceHeatTransferAreaHeatofFusionofIceFlowLossCoefficientInitialNetFreeGasVolumeValue2.37x10ibm2.93x10ft248Btu/ibm~0.4286780ft*Includes150Btu/ibmactualheatoffusionplus98Btu/ibmtoraiseicecondenserdraintemperaturefrom32Fto130F. TABLE8CookCLASIXInputIceCondenserDoorParametersLowerInletDoorsMaximunOpeningAngleMinimumDifferentialPressureforMaximumOpeningMaximumFlowAreaBypassFlowArea550.0069psi990ftIntermediateDeckCoorsMaximumOpeningAngleNinimumDifferentialPressureforMaximumOpeningMaximumFlowAreaBypassFlowArea895.5psi1326ft20ftTopDeckDoorsMaximumOpeningAngleMinimumDifferentialPressureforMaximumOpeningMaximumFlowareaBypassFlowAreaMinimumDifferentialPressuretoInitiateDoorOpening891.15psi2040ft20ft0.005psi TABLE9CookCIASIXInputAirReturnFan/HdrenSkimmerSstemParametersParameterNumberofTrainsInitiationTimeFlowFractionsperTrainUC-F/ALC-F/ADE-F/AFlowRateHead(inH20)Value0.95690.03590.0024FlowRatePerTrain(cfm)0.01.02.03.04.04.55.06.06.56.86.96.95.305.054.754.454.153.973.803.423.102.501.600.0x104x104x104x10x104x104x104x1044x10x1044x10*Initiated10minutesafterthecontainmentreaches3.0psigpressure. TABEZ10CookCIASIXInputSraSstemParametersParameterDropDiameter(in)DropFallTimeFlowRategpn0.027610.6640005.751.681800528F/A0.02760.0276Temperature(F)DropFilmCoefficient(Btu/hrftF)InitiationTimesec125201252012520*Initiated30secondsafterthecontainmentreaches3.0psigpressure. P~0 TABLEllCookCLASIXInputComrtmentDendentPassiveHeatSinkParametersParameterTemperatureLowerCompartmentIceCondenserLowerPlenumIceCondenserUpperPlenumUpperCompartmentDeadEndedRegionFan/AccumulatorRoomsValue110F15F75F98F110FRadiantHeatTransferBeamLeng&LowerCompartmentIceCondenserLowerPlenumIceCondenser.UpperPlenumUpperCompartmentDeadEndedRegionFan/AccumulatorRooms25.0ft8.5ft8.5ft59.0ft8.5ft8.5ft*SeeTable15. TABLE12CookCIASIXInputMaterialDendentPassiveHeatSinkParametersParameterMaterialValueEmmissivity*ConcreteCarbonSteelPaintStainlessSteel0.90.90.90.4ThermalConductivit+(Btu/hrftF)VolumetricHeatCapacity*(Btu/ftF)PaintonSteel(UC"PaintonSteel(LC,DE,F/A$gP)PaintonConcreteConcreteCarbonSteelStainlessSteel~~nton~oAc.<Q&<PaintonSteel(UC)PaintonSteel(LC,DE<F/AQVf)PaintonConcreteConcreteCarbonSteelStainlessSteel0.210.220.0870.8427.39.87g.8+29.814.729.830.259.259.2erExitHeatTransferCoefficient*PainttoSteelorConcrete(Btu/hrftF)2ConcretetoConcreteConor~tcQeSteelSteeltoConcrete'teeltoSteelLastLayerAdiabaticWall1010IO10100*SeeindividuallowerplenumwalldatainTable15.~6lQ)tlpug~pp~~een~iderMi~ipwiS'<<~+>~"+cozz~c~czen~i.&~edvs~pguava r~ TABLE13CookCLASIXInputUrComrtmentPassiveHeatSinksCLASIXWallNumber'escriptionInitialWallTemperatureSurface2(F)Area(ft)LayerNumberNumberofNodesLayerMaterialLayerThickness(ft)7575260862151210215PaintCarbonsteelConcreteConcretePaintCarbonsteel0.0010.0311.890.0010.0375755284595225126323010PaintCarbonsteelConcreteConcreteConcretePaintCarbonsteelConcrete0.0010.05111.50.0010.060.83757535025433315~8123ConcreteCarbonsteelConcreteConcreteConcrete0.150.030.63754381128ConcreteConcrete11.53 0 TABLE14CookCIASIXInputLowerComrtmentPassiveHeatSinksCLASIXWallNumberDescriptionInitialWallTemperatureSurface2(F)Area(ft)LayerNumberNumberofNodesLayerMaterialLayerThickness(ft)11054012215PaintS.steel0.0010.0310121101101101105953224gR304k797212312345230It)215126212321263PaintS.steelCD~~$gPaintS.steelConcreteConcreteConcretePaintConcreteConcretePaintConcreteConcreteConcrete0.0010.06a.Rp0.0010.03112.050.001GVV0.001111.61 lp TABLE15CookCIASIXInputIceCondenserLowerPlenumPassiveHeatSinksC[ASIXInitialWallWallTemperatureSurface2LayerNumber(F)Area(ft)NumberNumberofNodesLayerMaterialLayerThickness(ft)LayerConductivity(Btu/hrftF)LayerHeatCapacity(Btq/ftF)LayerHeatHeatTransfer(Btu/hrftF)138019100531insulationsteel10.06250.1526.02.7556.40.70.0148013055512insulation1concrete10.20.83.66328.80.70.01515paintconcrete.000833.330.08330.828.428.8100.0 'Il't!eI TABLE16CookCIASIXInputIceCondenserUrPlenumPassiveHeatSinksCLASIXWallNumberDescriptionInitialWallTemperatureSurface2LayerNumber(F)Area(ft)NumberofNodesLayerMaterialLayerThickness(ft)161594531232~/5lGlnpaint0.001carbonsteel%-.66-0-OQIQ-Of3s~)o4o4 I TABLE17CookCLASIXInputDeadEndedRionPassiveHeatSinksCLASIXWallNumberDescriptionInitialWallTemperatureSurface2(F)Area(ft)LayerNumberNumberofNodesLayerMaterialLayerThickness(ft)179865902251263paintcarbonsteelconcreteconcreteconcrete0.0010.05111.51898167892123paintconcreteconcrete0.0011 TABLE18CookCLASIXInputFan/AccumulatorRoomsPassiveHeatSinksCLASIXWallNumberDescription19InitialWallTemperatureSurface2LayerNumber(F)Area(ft)NumberofNodes1105640122253124653LayerMaterialpaintcarbonsteelconcreteconcreteconcreteLayerThickness(ft)0.0010.05111.520110101342123paintconcreteconcrete0.00110.54 r TABLE19CookCLASIXAnalysisSummarofResultsLowerIceCondenserIceCondenserCompartmentLowerPlenumUpperPlenumUpperDeadEndedFan/AccCompartmentRegionRoomsNumberofBurnsMagnitudeofBurns(ibm)TotalH2Burned(ibm)H2Remaining(ibm)PeakTemperature(F)PeakPressure(psig)62-734818882810.94738310.83015-4059526115510.825616810.52421610.921205*10.8IceRemaininginIceBedat7080sec.9.9x10ibm.*Occursbeforeburnperiod.
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