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{{#Wiki_filter:FLORIDAPOWERANDLIGHTCOMPANYNUCLEARENGINEERINGDEPARTMENTP.O.Box14000JunoBeach,Florida33408St.LucieNuclearPowerPlantUnit2ATTACHMENT8STRESSESFORST.LUGIEUNIT2PRESSURIZERLEFMPreparedbyBBWNUCLEARSERVICECOMPANYForSt.LucieNuclearPowerPlant10MilesSouthofFt.PierceonA1AFt.Pierce,Florida33034CommercialServiceDate:NRCDocketNumber.DocumentNumber.RevisionNumber.0August8,198350-38932-1235127-01Date:February15,1995FHQ:PSL1SNB.RPTPage395030703&i950302PDRADOCK050003B9PPDR
{{#Wiki_filter:FLORIDAPOWERANDLIGHTCOMPANYNUCLEARENGINEERING DEPARTMENT P.O.Box14000JunoBeach,Florida33408St.LucieNuclearPowerPlantUnit2ATTACHMENT 8STRESSESFORST.LUGIEUNIT2PRESSURIZER LEFMPreparedbyBBWNUCLEARSERVICECOMPANYForSt.LucieNuclearPowerPlant10MilesSouthofFt.PierceonA1AFt.Pierce,Florida33034Commercial ServiceDate:NRCDocketNumber.DocumentNumber.RevisionNumber.0August8,198350-38932-1235127-01 Date:February15,1995FHQ:PSL1SNB.RPT Page395030703&i 950302PDRADOCK050003B9PPDR


BWNT-20697-2(11/89)JllBBMINUCLFAHCMTECHNOI.OGIESCALCULATlONALSUMMARYSHEET(CSS)DOCUMENTIDENTIFIER32-1235127-01TITLEStressesforSt.LucieUnit2,PressurizerLEFMPREPAREDBY'EVIEWEDBY:A.M.MIllerSIGNATURTITLEEngr.IVCOST41020REF.~AMEH.T.HarrisoSIGNATUR~~9'5TITLEPrincialEnr.38TMSTATEMENT'EVIEWERPURPOSEANDSUMMARYOFRESULTSThepurposeofthisdocumentwastodetermineenvelopingNormalandUpset,Conditionstressesfortheseven1"instrumentation/temperaturesensingnozzlesinthepressurizeratSt.LucieUnit2.Resultsfromthisdocumentwereusedasinputstothefracturemechanicsevaluation,Reference[7].estressresultsaresummarizedinTables6-1through6.8inSection6.0.Notethatthermalstratificationeffectswerenotconsideredinthisanalysis.**BWNTNON-PROPRIETARY**THEFOLLOWINGCOMPUTERCODESHAVEBEENUSEDINTHISDOCUMENT:CODEIVERSIONIREVCODEIVERSIONIREVTHISDOCUMENTCONTAINSASSUMPTIONSTHATMUSTBEVERIREDPRIORTOUSEONSAFETY-RELATEDWORKYES()No(X)FAG~OF BGWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01RECORDOFREVISIONSRevisionNumberPagesAdded/ChanchedDescritionAllOriginalissue01AllIssueofNon-ProprietaryVersionPreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:2 BRWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-011.0Introduction42.0Assumptions43.0DesignInputs3.1DesignCharacteristics3.2MaterialProperties3.3ModelGeometry~~~~5~~0~684.0FiniteElementModel.......................105.0ThermalAnalysis...................~.....106.0StressAnalysis..........................187.0ANSYS5.0AVerification......................378.0References389.0Microfiche~~~~~~~~~~~~~~~39PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 B&WNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32"1235127-011.0IntroductionDuringthe1994refuelingoutage,externalleakagewasidentifiedatthepressurizerinstrumentnozzle"C"ofFloridaPower&LightCompany'sSt.LucieUnit2.SubsecpxentNDEidentifiedindicationsontheJ-weldsforallfoursteamspaceinstrumentnozzles.Modificationsweremadeandjustificationsperformedtodeterminethepotentialforcrackgrowthduringplantoperation.Theevaluationperformedatthetimewasconservativelylimitedtoonecyclebasedonthedesigninformationavailable.Thepurposeofthisanalysisistoprovidestressanalysisinputforaboundingfracturemechanicsflawevaluationsothatitisapplicabletoallseveninstrument/temperature1"nozzlesinthepressurizer.Resultsfromthisdocumentwereusedasinputstothefracturemechanicsevaluation,Reference[7].TheresultswerepresentedinthecoordinatesystemofthepostulatedflawasrecpxiredbyReference[7]sincethefracturemechanicsevaluationdeterminedthepostulatedflaws,seeFigure6.2.ThecomponentstressesalongapostulatedflawplaneshowninFigure6.2weredeterminedusingANSYS5.0Afiniteelementsoftware.2.0Assumptions1)MaterialpropertiesforSA-240,Type304wereassumedforthestainlesssteelcladdingonthepressurizerheadsandshell.2)Theeffectsofthenozzlewereneglectedindeterminingtheshell/headstresses(i.e.thenozzlewasomittedfromthefiniteelementmodel).3)ThehTbetweenthecladdingsurfacetemperatureandthebulkfluidtemperaturewasassumedtobeaspecifichT'Fforcalculatingthenaturalconvectionheattransfercoefficient.4)Pipingloadsontheinstrumentation/temperaturesensingnozzlesproducenegligiblestressesonthepressurizershell/head.5)Effectsofthermalstratificationwerenotconsideredinthisanalysis.6)Hydrotestwasassumedtobeshophydrotestonly.Therefore,nofuturehydrotestsareassumedtooccur.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~295Date:295 B&WNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127"013.0DesignInputs3.1DesignCharacteristicsThefollowingdesignparametersforthepressurizerweretakenfromReference[8].HeatupCooldownOperatingPressureOperatingTemperatureMinimumPressure(ReactorTriptransient)MaximumPressure(AbnormalLossofLoadtransient.)100'F/hr200'F/hr2250psia653F1740psia(653-616'FhT)2400psia(664-614'FhT)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:~299 BOWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-013.2MaterialPropertiesThissectionsummarizesthematerialpropertiesusedinthethermal/stressanalysis.ThematerialtypescomefromReferences[8-10]andassumption1.Referencesforthematerialpropertiesaregiveninthetablesbelow.Thematerialpropertydesignationandunitsare:KXX-thermalconductivity,btu/(hr-in-'F)DENS-density,lb/in'-specificheat,btu/(lb-'F)CisacalculatedvaluebasedonCKXX/(DENSxThermalDiffusivity)wherethermaldiffusivityistakenfromthesamesourceasKXXEX-Young'sModulus,psix10'LPX-coefficientofthermalexpansion,in/in/'Fx10~Sm-designstressintensity,ksiSy-yieldstrength,ksiSu-ultimatestrength,ksiv-Poisson'sratio~.3forallmaterialsPRESSURIZERHEADSANDSHELLSA-533GR-BCL-1,LowAlloySteel(Mn-.SMo-.SNi)TEMP100200300400500600700REFDENS.2839.2831.2823.2817.2809.2802.27941.88331.95001.98331.98331.95831.91671.8583.1079.1139.1196.1257.1323.1389.1448EX29.328.828.327.727.326.725.5ALPX7.067.257.437.587.707'37.94Sm26.726.726.726.726.726.726.7Sy50.047.546.145.144.543.843.1Su80.080.080.080.080.080.080.0PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 B&WNUCLEARTECHNOLOGIES**BWNTNON"PROPRIETARY**32-1235127-01HEADANDSHELLCLADDING304STAINLESSSTEEL,SA-240ASSUMED(18Cr-8Ni)TEMP100200DENS.2862.2853.7250.7750.1157.1209EX28.127.6ALPX8.558.7920.0Sy30.020.0'25.0Su75.071.0300400500600700REF.2844.2836.2827.2818.2810.8167.8667.9083.9417.9833.1246.1286.1313.1334.135827.026.525.825.324.89.009.199.379.539.6920.018.717.516.416.022.520.719.418.217.766.064.463.563.563.5PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 BGWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-013.3ModelGeometryToboundallinstrument/temperaturesensingnozzlelocationsinthepressurizerheadsandshell,theradiusofthemodelednozzlepenetrationwasdeterminedsothatthetotalpressurestresswouldecpxalorexceedthetotalpressurestresspresentatallnozzlelocations.Penetrationsinthesphericalheadsexperienceincreasedstressduetothehillsideeffectoftheskewedpenetration.Penetrationsinthecylindricalportionoftheshellexperienceincreasedstressduetothelargerhoopstressandthelargerstressconcentrationeffectsduetothestressprofilearoundthepenetration.Themodelinherentlyincludedstresstoaccountforthehillsideeffectandthestressforthestressconcentrationeffectataholeinthecylindricalshell.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 BGWNUCLEARTECHNOLOGIES**BWNTNON"PROPRIETARY**32-1235127-01IJJCL0-I-C)(UICCCCI-DCCFigure3.1,FiniteElementModelGeometryandMaterials(inches)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 B&WNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-014.0FiniteElementModelANSYS5.0Afiniteelementsoftware,Reference[6],wasusedtoperformtheaxisymmetricthermalandstressanalysisofthenozzlepenetration.Asufficientportionofthehead/shellwasmodeledtoattenuatethestressconcentrationeffectsatnozzlepenetration.Thehead/shellandcladdingweremodeledusingaxisymmetricelements(PLANE42structuralandPLANE55thermal).5.0ThermalAnalysisThetransientsinRef.[8]werereviewedforthoselikelytoproducemaximumtensilestressontheinsidesurfaceofthepressurizer(conservativeforthefracturemechanicsanalysisinReference[7]).Basedonthereview,thefollowingtransientswereevaluatedinthisanalysis:100'F/hrHeatup,200'F/hrCooldown,aboundingUpsetConditiontransientwhichwasrepresentedasa53'FStep-down(pressure1740psia)anda53'FStep-up(pressure2400psia),and'ossofSecondaryPressure.TheHeatup,Step-down,Step-upandCooldowntransientswerecombinedintoonecomputerrun(microficheTHERMAL.OUT)withHeatupfrom70'Fto653'F(0hoursto5.83hours),53'FStep-down(7hrinstantaneous),53'FStep-up(8hrinstantaneous)andCooldownfrom653'Fto70'F(9hoursto11.915hours).TheLossofSecondaryPressuretransientwasrunandtheresultsarecontainedinmicroficheLPTHERM.OUT.Thermalconditionswereimposedonthefiniteelementmodelasappliedheattransfercoefficientsandbulkfluidtemperatures.HeattransferwasassumedtooccuratonlytheinsidesurfaceofthepressurizerasshowninFigure5.1.Allothersurfaceswereassumedtobeinsulated.Aconstantheattransfercoefficientwasusedtosimplifytheanalysisinaconservativemanner.SinceoverestimatingthetensilestressesattheinsidesurfaceofthepressurizerwasconservativeforthefracturemechanicsanalysisinReference[7],theheattransfercoefficientwasselectedtoresultinconservativelyhightensilestressesontheinsidesurfaceofthepressurizer.DuringHeatupandtheStep-uptransients,heatingoftheinsidesurfacecausescompressionontheinsidesurfaceofthepressurizer.Therefore,useofalowheattransfercoefficientresultsinconservative(tensile)stresses.Conversely,duringCooldownandtheStep-downtransient,ahighheattransfercoefficientresultsinconservative(tensile)stresses.Therefore,nozzlesinPreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~299Date:295Page:10 B6cWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01thesteamspacewereconservativelyrepresentedusingheattransfercoefficientsinthewaterspace(i.e.forheating,condensingsteamcoefficientsaregreaterthannaturalconvectioncoefficientsinthewaterspaceandforcooling,naturalconvectionsteamcoefficientsarelessthannaturalconvectioncoefficientsinthewaterspace).TheheattransfercorrelationsinRef.[2]werereviewedforhorizontalandverticalplates.Thecorrelationforahorizontalheatingplate,faceup(T>Tm)wasselectedasarepresentativeheattransfercoefficientforthenozzlesinthewaterspace.TheresultsofthethermalanalyseswerereviewedusingtheANSYSPOST26postprocessortodeterminetimeswhentheradialhT'soccurred.Thetemperatureattheinsidesurfaceofthepressurizer(essentiallythebulkfluidtemperature)andtheradialhTareshowninFigures5.2through5.5.ThetemperaturedistributionattimesofextremehT'swerethenusedasinputsforthestressanalysessincetheextremehT'sresultedinextremethermalstresses.Steadystatetemperaturecaseswerealsorunat653Fand2250psiawithoutmaterialdiscontinuityeffects(T~T~microficheSTEADYST.OUT)andat653'Fand2400psiawithmaterialdiscontinuityeffects(T,70'F,microficheSTRESS.OUT).Thefollowingtablesummarizesthecriticaltransienttimesandidentifiestheassociatedpressures.ThelocationofnodepairusedforevaluationofthehT'swasthesamenodepairusedforthestresspathinSection6.0andisshowninFigure6.2andthePOST26resultsarecontainedattheendofthethermalrunsPreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:11 BOWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01inthemicroficheinSection9.0.NotethatalthoughthenodepairusedforevaluatingtheradialhTwasataspecifiedflawanglethroughtheshellwall,itwasrepresentativeoftheradialgradientsincetheheattransferisonedimensionalintheradialdirection(i.e.,theentireinsidesurfaceisisothermalandtheentireoutsidesurfaceisisothermal).TABLE5.1,CRITICALTRANSIENTTIMESTRANSIENTTRANSIENTTIME(HR)PRESSURE(PSIA)Heatup5.832,250Step-down7.06671,740Step-up8.06672,400SteadyState'.0002,400Cooldown9.52471,028'ooldown11.915SteadyState',250LossofSecondaryPressure.051958200'Thepressurewasassumedtoequalthesaturationpressureat548'F'Includesmaterialdiscontinuitytemperatureeffects(T,=70'F).'Excludesmaterialdiscontinuitytemperatureeffects(T,=T~~653'F).PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~295Page:12 gmmmlllll~~>lllIINllllllllIllllllmllllllINgNNllllllllllllllllll+>~IlllllllllllllllIllllllllllleaagrmmmlllllaIrlllEIIIINISaIllllllllllmiEaIlllllllllmllirsusmnssacaarrIRIIIRllllllfROE~lllllllllltlOSRllllllllllllI5%%~rrarrrrrrrrsQEarnrrrraraarkRssHranrrraaraQssskarrrarrrrrrisoRraaanrrararrrrasarraarrrraasssÃ~arrrrraaraassRR~aaraaarranee'aaaanrrnrrarrrr~rrarrnarraarrra
BWNT-20697-2(11/89)
JllBBMINUCLFAHCMTECHNOI.OGIES CALCULATlONAL SUMMARYSHEET(CSS)DOCUMENTIDENTIFIER 32-1235127-01 TITLEStressesforSt.LucieUnit2,Pressurizer LEFMPREPAREDBY'EVIEWED BY:A.M.MIllerSIGNATURTITLEEngr.IVCOST41020REF.~AMEH.T.HarrisoSIGNATUR~~9'5TITLEPrincialEnr.38TMSTATEMENT'EVIEWER PURPOSEANDSUMMARYOFRESULTSThepurposeofthisdocumentwastodetermine enveloping NormalandUpset,Condition stressesfortheseven1"instrumentation/temperature sensingnozzlesinthepressurizer atSt.LucieUnit2.Resultsfromthisdocumentwereusedasinputstothefracturemechanics evaluation, Reference
[7].estressresultsaresummarized inTables6-1through6.8inSection6.0.Notethatthermalstratification effectswerenotconsidered inthisanalysis.
**BWNTNON-PROPRIETARY**
THEFOLLOWING COMPUTERCODESHAVEBEENUSEDINTHISDOCUMENT:
CODEIVERSIONIREVCODEIVERSIONIREVTHISDOCUMENTCONTAINSASSUMPTIONS THATMUSTBEVERIREDPRIORTOUSEONSAFETY-RELATED WORKYES()No(X)FAG~OF BGWNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01 RECORDOFREVISIONS RevisionNumberPagesAdded/ChanchedDescritionAllOriginalissue01AllIssueofNon-Proprietary VersionPreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:2 BRWNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01


B6WNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01zLUDOKQnu?nu)0v-~OOCiElfIll/)-UU.UUjNOX>.NOoKHI-A1VAIIV)(91UjO0I-Figure5.2,ShellRadialhTTimeHistory,Heatup,53hTSteps6CooldownPreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:14 H08ANSYS5.0AOCT25199410:02:30PLOTNO.2POST26ZV1DIST0.75XF0.5YF0.5ZF-0.5CENTROIDHIDDENni5000I0MTEMPRAD00000STLUCIE1.IGS10TIME12161820MIhl4JVlh)IO 6l8lr.e6lQl00tdW'C'CzV0Ul*00n00<CSTLUCIE1.IGSOo20.40.60.8TIMEi+2l.6RAD(>>loca-l)ANSYS5.0AOCT25199409:07:48PLOTNO.POST26ZV1DIST0.75XF0.5YF0.5ZF05CENTROIDHIDDENnn0ElOgI0HW4)MIh>OJUlWIO B&WNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01CIIQ~g)O~gg<zol0-Sl-opV)zLUDDXO~u)u)n<rOOOO>~isa~+~4IOXCO~4blKH000OONOA1VA(D(9ujODe~Figure5.5,InsideSurfaceTempandRadialhT,LossofSecondaryPressurePreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Page:17 B6cWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-016.0StressAnalysisThetemperaturedistributionsandpressuresatthecriticaltimesinTable5.1wereimposedonthemodeltoobtainthestressesinthepressurizershell.ThepressureboundaryconditionsareshowninFigure6.1.SincethefracturemechanicsevaluationinReference[7]requiresstressesalongaspecifiedflawplane,theANSYSPOST1postprocessorwasusedtotransformthestressesintotheflawplanecoordinatesystemasshowninFigure6.2.Symmetryboundaryconditionswereusedattheedgeofthepressurizerheadtorestricttheheadsmotiontoonlytheradialdirection.Anodalforcewasappliedtotheheadtorepresenttheendcaploaddevelopedatthenozzle(nozzleendcapload=mr'(pressure)~w(.6875)'(pressure)~1.4849(pressure)).Thenodalforcewasconservativelyappliedtotheoutsidesurfaceofthemodelsinceitwouldtendtoincreasethetensilestressesinthepressurizershellwhichistheregionofinterest.CompletestressresultsarecontainedinthemicroficheofSection9.0.ThestressesasrequiredfortheFManalysisaresummarizedintheTables6.1through6.8andFigures6.3through6.10.Notethatthestressesareinpsi.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:18 BOWNUCLEARTECHNOLOGIESNON-PROPRIETARY**32-1235127-01TABLE6~1gENDOFHEATUPgP~2250PSIS0.00000E+000.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-7283.8-2390.62348.75917.87064.78210.29242.59868.310502.11084.11488.11893.12269.12553.12834.13098.13309.13515.13713.13877.14037.14192.14323.14453.14580.14686.14793.14898.14991.15083.15141.15163.15188.15246.15305.15354.15394.15433.15473.15507.15530.15553.15577.15601.15938.16287.16624.16947.17256.SY5973.25126.04768.95548.96676.27778.08839.19535.710230.10889.11363.11838.12287.12640.12991.13324.13601.13873.14133.14355.14571.14780.14960.15134.15304.15450.15594.15732.15848.15965.16109.16263.16413.16513.16610.16701~16784.16865.16946.17022.17087.17152.17217.17281.16990.16681.16387.16106.15838.SZ60276.55404.50677.46241.44495.42714.41030.40141.39242.38404.37926.37440.36991.36728.36456.36206.36064.35908.35768.35692.35604.35527.35487.35441.35400.35380.35356.35334.35323.35313~35295.35291.35286.35264.35241.35234.35214.35192.35170.35150.35120.35090.35060.35031.34986.34940.34894.34848.34802.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:~295Page:19 B&WNUCLEARTECHNOLOGIESNON-PROPRIETARY**32-1235127-01,TABLE6.2,53FSTEPDOWN,P~1740PSIS0.00000E+000.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302~15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644'6604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-6913.0-1682.63307.96953.47957.18893.39672.710050.10402.10696.10819.10932.11024.11030.11038.11037.10989.10954.10912.10846.10794.10736.10672.10615.10555.10499.10444.10391.10346.10299.10238.10162.10088.10053.10020.9980.39950.79923.19895.99869.69852.29835.49819.19803.310004.10214.10416.10609.10794.SY8348.26909.25990.66441.37527.88532.99420.09888.710328.10707.10889.11060.11203.11250.11298.11332.11313.11307.11290.11246.11214.11175.11126.11084.11038.10995.10953.10911.10872.10834.10823.10828.10831'0819.10807.10791.10789.10789.10790.10791.10803.10816.10828.10839.10650.10452.10263.10081.9908.0SZ70271.62772.55758.49572.46742.43956.41368.39639.37939.36375.35178.34011.32937.32044.31191.30394.29697.29052.28434.27886.27380.26888.26458.26052.25654.25317.24988.24670.24402.24135.23884.23665.23447.23257.23071.22896.22751.22611.22472.22345.22248.22152.22057.21962.21903.21846.21791.21736.21681.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:20 B&WNUCLEARTECHNOLOGZESNON-PROPRZETARY**32-1235127-01TABLE6.3,53FSTEPUP,P~2400PSZS0.00000E+000.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-7254.5-2602.91924.95376.56556.37759.18874.09593.910334.11027.11544.12066.12554.12950.13338.13705.14019.14316.14605.14855.15091.15324.15523.15716.15906.16065.16222.16377.16510.16643.16734.16781.16832.16912.16995.17065.17121.17175'7229.17276.17306.17337.17368.17400.17777.18168.18544.18905.19251.SY5009.84374.64204.65068.26184.47297.48404'9179.89966.410731.11319.11914.12486.12961.13433.13885.14279.14658.15025.15349.15656.15955.16217.16466.16711.16919.17123'7319.17481.17644.17833.18028.18220.18347.18471.18589.18691.18790.18889.18981.19056.19132.19207.19282'8956.18611.18281.17966.17668.SZ55366.51513.47681.43963.42672.41314.40030.39507.38957.38443.38279.38091.37914.37923.37897.37877.37966.38007.38058.38169.38238.38318.38420.38500.38585.38668.38744.38815.38881.38946.38994.39048.39101.39119.39134.39167.39173~39175.39176.39177.39158.39139.39119.39099.39055.39009.38962.38915.38867.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:21 BOWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01TABLE6.4,STEADYSTATE,Tref70F,Tunif653F,P=2400PSIAS0.00000E+000.119590.239180.358760.478350.597940~717530.837110.956701.07631.19591.31551.43511.55461.67421.7938l.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354~9031'.02275.14235.26195.38145.50105.62065.7402SX-8203.5-2489.23016.77124.08389.69630.610730.11367.12002.12576.12950.13321.13659.13895.14127.14342.14499.14653.14797.14906.15014.15116.15196.15275.15351.15411.15471.15531.15582.15632.15649.15633.15620.15646.15675.15693.15708.15724.15739.15751.15759.15767~15776.15785.16120.16469.16804.17126.17434.SY7687.16501.05884.86653.77928.79155.610311.11033.11745.12410.12859.13306.13723.14028.14332.14617.14837.15055'5260.15424.15585.15737.15861.15983.16099.16195.16289.16379.16451.16524,16627.16743.16857.16924.16989.17048.17106.17164.17221.17276.17327.17377.17428'7478.17179.16864.16563.16275.16001.SZ72516.66004.59778.54082.51714.49332.47103.45809.44517.43322.42543.41766.41049.40544.40042.39574.39228.38882.38558.38308.38058.37821.37634.37446.37266.37121.36975.36833.36717.36600.36483.36387.36292.36193.36094.36012.35931.35851.35772.35699.35631.35565.35498.35432.35372.35312.35253.35193.35134.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:22 B&WNUCLEARTECHNOLOGIESNON-PROPRIETARY**32-1235127-01TABLE6.5,COOLDOWN,Psat=1028PSIAS0.00000E+000.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381~91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434'6394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-4251.9-949.122183.54457.55075.95642.06110.76333.86537.56703.06763'6815.36851.06834.56816.96791.26737.16688.06633.16563.86500.66433.46361.26293.06222.36153.76085.96019.05957.75895.35825.55749.15673.45623.65575.35523.15481.35441.55402.05364.65338.65313.05287.85263.05363.85470.85573.35671.35764.8SY5658.24628.93925.54126.64801.85420.15958.36232.96488.46707.96802.56889.76958.56965.96972.46968.36931.06898.16857.66799.76746.86688.86624.26562.56497.96434.86372.36309.86250.46190.66147.26114.06079.56040.66001.65960.25932.05906.15880.05856.35846.35835.95825.35814.45707.65596.85490.35388.15290.2SZ45637.40460.35641.31472.29573.27713.26003.24848.23716.22680.21877.21094.20370.19760.19173.18620.18130.17668.17222.16818.16438.16067.15731.15411.15095.14816.14542,14276.14041.13807.13586.13386.13186.13011.12839.12674.12536.12403.12271.12149.12059.11969.11879.11791.11743.11699.11655.11612.11569.PreparedReviewedBy:A.M.MillerBy:H.T.HarrisonDate:295Date:295Page:23 B&WNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01TABLE6.6,ENDOFCOOLDOWN,P~OPSIS0.00000E+000.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-519.07129.63701.441078.81148.31181.91182.21146.21094'1031.4954.61871.24785.65694.22602.49510.30415.58324.91233.00141.5754.659-33.564-117.81-199.13-281.30-356.35-430.77-504.36-570.83-637.84-699.27-754.44-810.04-858.93-907.49-955.43-994.11-1031.2-1068.3-1102.5-1125.9-1149.3-1172.6-1195.7-1229.8-1263.7"1296.6-1328.4-1359.1SY2077.71580.41144.8988.461099.81183.71219.91190.41150.61098.61021.0938.62852'8754.86657.42558.39454.90355.00253.68152.2055.383-42.486-136.32-226.71-317.58-400.69-482.67-563.15-635.20-707'0-777.36-843.39-909.32-963.51-1016.9-1070.3-1112.6-1153.1-1193.7-123103-1256.9-1282.6-1308.5-1334.6-1317.7-1298.4-1280.5-1263.8-1248.4SZ12153.10004.8066.56563.85865.25204.24606.34128.03668.53253.82882.42526.72198.21888.01595.41317.91048.9800.61558'6323'1106.80-107'4-310.33-501.66-691.53"864.00-1032.2-1196.1-1343.4-1490.0-1626.1-1752.9-1879.0-1984.9-2088.8-2193.2-2276.2-2355.1-2433.4-2506.0-2555.8-2605.1-2653'-2702.2-2720.1-2735.3-2750.1-2764.5-2778.6PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Page:24 B&WNUCLEARTECHNOLOGZES**BWNTNON-PROPRIETARY**32-1235127-01TABLE6.7,STEADYSTATETunifTref653,P=2250PSIS0.00000E+000.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.7938l.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-7698.3-2331.22839.06694.97882.49046.210077.10674.11270.11807.12157.12503.12820.13039.13255.13455.13600.13743.13877.13977.14077.14172.14245.14318.14388.14443.14498.14552.14599.14645.14660.14644.14631.14654.14681.14697.14710.14724.14738.14749.14755.14762.14770.14778.15092.15418'5732'6033.16321.SY7242'6121.45535.26252.47449.38600.79684.910362.11029.11652.12072.12490.12880.13164.13448.13713.13918.14121.14311.14463.14612.14753'4868.14981.15088.15177.15264.15347.15413.15480.15576.15683.15789.15851.15911.15965.16019.16072..16125.16176.16223.16270.16317.16364.16084.15788.15506.15237.14980.SZ68183.62041.56169.50803.48572.46328.44230.43011.41793.40667.39932.39199.38521.38043.37567.37125.36795.36467.36159.35920.35683.35457.35278.35099.34927.34788.34649.34513.34401.34289.34177.34085.33993.33898.33804.33725.33648.33572.33496.33426.33362.33299.33235.33173.33116.33060.33004.32948.32892.PreparedReviewedBy:A.M.MillerBy:H.T.HarrisonDate:295Date:295Page:25 B&WNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01TABLE6.8,LOSSOFSECONDARYPRESSURE,P=200PSIS0.00000E+000.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302.15262'7222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-5205.0587.395836.89361.39958.310290.10363.10092.9703.69218.78598.47929.17239.16491.25747.05000.94228.63502.82767.62036.51355.7663.808.7152-616.39-1248.7-1812.4-2368.7-2915.8-3393.9-3876.5-4314.1-4701.6-5092.1-5422.5-5749.9-6073.0-6325.6-6566.3-6806.8-7026.7-7172.2-7316.9-7460.9-7604.2-7816.6-8028.3-8233.2-8431.3-8622:6SY15781.12266.9310.98486.69430.210146.10524.10362.10107.9732'9133.38489.47802.17019.96235.65437.84599.93801.62992.42182.81422.8654.06-76.898-773.97-1474.9-2101.0-2715.4-3315~1-3835.6-4359.0-4853.0-5312.7-5771.4-6135.3-6492.4-6849.9-7122.2'-7380.6-7639.3-7877.5-8031.6-8186.8-8343'-8500.8-8385.2-8254.9-8132.8-8019.2-7913.9SZ98478.82490.68060.56501.50752.45286.40344.36430.32662.29217.26146.23197.20462.17888.15461.13164.10941.8912.16934.65031.03296.11579.5-22.322-1522.1-3010.1-4329.8-5611.0-6851.7"7933.1-9009.0-9994.7-10897.-11795.-12524.-13236.-13951~-14503.-15023.-15539.-16014.-16330.-16643."16952.-17257."17369.-17463.-17554.-17643.-17729.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:26 llmml5lmlllllilllmmllm~<NINNIIIIIIIIuNllllmlmlllllllllllllllNlllllllmlll+>~Iglllllllll&#xc3;~~lllllllllllllllagllmlllllllESagllllglNIIEErIllllllmllNIERllllmmllllllmRNSXIXXXXXXXXXXlIOSQl)llmXQXXi550IfffffRffffIINSRrarararraaasssRQraaararaaar!Rs88Raarrrrrrra5%8%%RrrraaaararassoRiaraaaaarraa558%raaaaraaaarasass~aaaararaarrsRRRsrrrrrrarrrsw5%%~rrrrraraaaarrar~raarrraraarmereNNIIIIINNma BRWNUCLEARTECHNOLOGIES**BWNTNON"PROPRIETARY**32"1235127-01"IntensionallyLeftBlank-ContainsBWNTProprietaryInformation"Figure6.2,StressPathforFlawPlanePreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~295Date:295Page:28 B&WNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01m-eI--oggSgZ>r~Q-IIcnl-cu0cnujm0-j'I-I-Q~~Z~gZOe~OI-DR<0040oQ.Q.cONI-Q.ZZZO0KOCS~~Q~ann/OOOOs~)sr~+QBU.lLILLU00Oa0)HecO40WOX0COPFigure6.3,EndofHeatupStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:29 BOWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01v)l-ol0v)ulcl+l-ZO(yj~OI-Z<0040oCLO.SNl-O.ZZZulOOKOCS~~Q+u)u)u)0v-gOO(5PIlIIIZ)Bu.u.u.ujNOXO-NOOI-Ng)gHecogcOCQG.IOCLul8Figure6',53'FStep-downStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:25Date:295Page:30 BOWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01COgeP)Z<cOQ.ggZOg)9QI-D><QQCOSQ.Q.V)NI-Q.ZZOOx0CS~~.QvOOOOspssagOaU)aeiO'VcvPi55cv000'igure6.5,53'FStep-upStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:31 B&WNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01ZO"90I->K<00c(0v-Q.o.cOU)I-0zztllCIQKOO+eee0rIOOO<IfIIIPNMCOn40OIHeiO40WOXnnFigure6.6,SteadyState653'F(Tref70'F)Stresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Page:32 BEcWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01~X~f-%O~<~~i~CfCfZO"BOf-OR<00<0a.a.rnrnf=a.aaOOOCI~~.Q'nnngv-gOOCjPIfIIlgMV)NOaNHOh4PtA5OCOQ.COOlC)E50.z0900OFigure6.7,CooldownStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:33 BOWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01g~PAZ~~t-~>+IICZP-Q.Q.V)gP0.ZZzOOKOnu?u?u?OK~IOOO)~sang)-U.U.U.UlNOXO-NO0-N(OMCOO~0MHC44OooXcvOV)CDIZ090O0OeFigure6.8,EndofCooldownStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:34 BOWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01Z0~90gg><OQCOSQ.O.V)Nl-fLZZZLllOOKOO~~.g5gOOQaI~II~PNMaO40MHC5Oo8rgge959Figure6.9,SteadyState653'F(Tref=Tunif)Stresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~295Date:295Page:35 BOWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-01<X"Rogg90PD><00<0O.O.COCOI-O.aaZLUClOKO~IAIALOQ~gOOO)~aISgN0-rCOaOHcvOCOCL8ICLUJKDCOCOLCjKC0R0OLljCO0COCO0Figure6.10,LossofSecondaryPressureStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:36 BEcWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-017.0ANSYS5.0AVerificationTheANSYSanalysiscode,version5.0A,wasverifiedusingclosedformsolutionsforhoopstressinasphereandstressconcentrationfactors.Thefollowingcomparisonoffiniteelement(FE)stressresultsandclosedformsolutionsindicatedthatthesoftwareprovidedaccurateresults.Therefore,ANSYSBOAwasverifiedforthisapplication.FiniteElementResultsfromTable6.7,Pressure2250psiaDistanceHooStressSz0.04.30526818333648HoopStressRef.[5,Table28case3a.]e~pr/2te=2250(120.5)/[2(4.094)]~33,112psiComparedto33,648psi(FE),h%=(33648/33112-1)(100%)1.6%StressConcentrationatHoleSCF=a,,/a,,>>68183/336482.026(FE)Comparedto2(fromSectionA3.3),h%(2.026/2-1)(100%)1.3%PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Page:37 B&WNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-018.0References1)ASMEBoilerandPressureVesselCode,SectionIII,Division1,Appendices,1986EditionwithnoAddenda.2)BWNSDocumentNo.51-1155656-00,"StandardCorrelationsforNaturalConvection"."BWNTProprietaryDocument."3)BWNSDocumentNo.NPGD-TM-500,"NPGDMaterialPropertiesProgramUser'sManual",Rev.D,March,1985."BWNTProprietaryDocument."4)Notused.5)Young,W.C.,"Roark'sFormulasforStress&Strain",6thEditionMcGraw-Hill,NewYork,1989.6)DeSalvo,G.J.andGorman,R.W.,"ANSYSUser'sManualforRevision5.0",1992,SwansonAnalysisSystems,Houston,Pennsylvania.7)BWNTDocument32-1235128-00,"FMAnalysisofSt.LuciePressurizerInstrumentNozzles"."BWNTProprietaryDocument."8)BWNTDocument38-1210588-00,"PressurizerInstrumentNozzles,FMDesignInput,"forSt.LucieUnit2,dated11/11/94(FP&LNumberJPN-PSLP-94-631,File:PSL-100-14).9)'FloridaPower&LightDrawingNo.2998-19321,Rev.0,"TopHeadInstrumentNozzlesRepair".10)'FloridaPower&LightDrawingNo.2998-18709,Rev.1,"PressurizerGeneralArrangement".*Referencesmarkedwithan"asterisk"areretrievablefromtheUtilitiesRecordSystem.uthorizedPro'ectManager'sSignaturePreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:38 BOWNUCLEARTECHNOLOGIES**BWNTNON-PROPRIETARY**32-1235127-019.0MicroficheMicrofichearenotincludedinthisdocumentbecausetheycontainmathmodelwhichisBWNTProprietary.However,forcompletenessthelistingofthecomputerrunsascontainedinRev.0ofthedocument("BWNTProprietary")aregivenbelow.FILENAMETHERMAL.OUTSTRESS.OUTLPTHERM.OUTLPSTRESS.OUTSTEADYST.OUTENDCD.OUTDESCRIPTIONCompositetransientthermalrunsincluding100'F/hrHeatup,53'FStep-down,53'FStep-upand200'F/hrCooldownStressrunsforthecompositetransientin"THERMAL.OUT"LossofpressurethermalrunStressrunfortheLossofPressuretransientSteadystatestresses(TrefTunif653'F)Stressrunfortheendofthe200'F/hrCooldown.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:39  
==1.0 Introduction==
42.0Assumptions 43.0DesignInputs3.1DesignCharacteristics 3.2MaterialProperties 3.3ModelGeometry~~~~5~~0~684.0FiniteElementModel.......................105.0ThermalAnalysis...................~.....106.0StressAnalysis..........................187.0ANSYS5.0AVerification
......................378.0References 389.0Microfiche
~~~~~~~~~~~~~~~39PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 B&WNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32"1235127-01
 
==1.0 Introduction==
Duringthe1994refueling outage,externalleakagewasidentified atthepressurizer instrument nozzle"C"ofFloridaPower&LightCompany's St.LucieUnit2.Subsecpxent NDEidentified indications ontheJ-weldsforallfoursteamspaceinstrument nozzles.Modifications weremadeandjustifications performed todetermine thepotential forcrackgrowthduringplantoperation.
Theevaluation performed atthetimewasconservatively limitedtoonecyclebasedonthedesigninformation available.
Thepurposeofthisanalysisistoprovidestressanalysisinputforaboundingfracturemechanics flawevaluation sothatitisapplicable toallseveninstrument/temperature 1"nozzlesinthepressurizer.
Resultsfromthisdocumentwereusedasinputstothefracturemechanics evaluation, Reference
[7].Theresultswerepresented inthecoordinate systemofthepostulated flawasrecpxired byReference
[7]sincethefracturemechanics evaluation determined thepostulated flaws,seeFigure6.2.Thecomponent stressesalongapostulated flawplaneshowninFigure6.2weredetermined usingANSYS5.0Afiniteelementsoftware.
 
==2.0 Assumptions==
1)Materialproperties forSA-240,Type304wereassumedforthestainless steelcladdingonthepressurizer headsandshell.2)Theeffectsofthenozzlewereneglected indetermining theshell/head stresses(i.e.thenozzlewasomittedfromthefiniteelementmodel).3)ThehTbetweenthecladdingsurfacetemperature andthebulkfluidtemperature wasassumedtobeaspecifichT'Fforcalculating thenaturalconvection heattransfercoefficient.
4)Pipingloadsontheinstrumentation/temperature sensingnozzlesproducenegligible stressesonthepressurizer shell/head.
5)Effectsofthermalstratification werenotconsidered inthisanalysis.
6)Hydrotest wasassumedtobeshophydrotest only.Therefore, nofuturehydrotests areassumedtooccur.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~295Date:295 B&WNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127" 013.0DesignInputs3.1DesignCharacteristics Thefollowing designparameters forthepressurizer weretakenfromReference
[8].HeatupCooldownOperating PressureOperating Temperature MinimumPressure(ReactorTriptransient)
MaximumPressure(Abnormal LossofLoadtransient.)
100'F/hr200'F/hr2250psia653F1740psia(653-616'FhT)2400psia(664-614'FhT)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:~299 BOWNUCLEARTECHNOLOGIES
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32-1235127-01 3.2MaterialProperties Thissectionsummarizes thematerialproperties usedinthethermal/stress analysis.
ThematerialtypescomefromReferences
[8-10]andassumption 1.References forthematerialproperties aregiveninthetablesbelow.Thematerialpropertydesignation andunitsare:KXX-thermalconductivity, btu/(hr-in-'F)
DENS-density,lb/in'-specificheat,btu/(lb-'F)
Cisacalculated valuebasedonCKXX/(DENS xThermalDiffusivity) wherethermaldiffusivity istakenfromthesamesourceasKXXEX-Young'sModulus,psix10'LPX-coefficient ofthermalexpansion, in/in/'Fx10~Sm-designstressintensity, ksiSy-yieldstrength, ksiSu-ultimatestrength, ksiv-Poisson's ratio~.3forallmaterials PRESSURIZER HEADSANDSHELLSA-533GR-BCL-1,LowAlloySteel(Mn-.SMo-.SNi)
TEMP100200300400500600700REFDENS.2839.2831.2823.2817.2809.2802.27941.88331.95001.98331.98331.95831.91671.8583.1079.1139.1196.1257.1323.1389.1448EX29.328.828.327.727.326.725.5ALPX7.067.257.437.587.707'37.94Sm26.726.726.726.726.726.726.7Sy50.047.546.145.144.543.843.1Su80.080.080.080.080.080.080.0PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 B&WNUCLEARTECHNOLOGIES
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32-1235127-01 HEADANDSHELLCLADDING304STAINLESS STEEL,SA-240ASSUMED(18Cr-8Ni)
TEMP100200DENS.2862.2853.7250.7750.1157.1209EX28.127.6ALPX8.558.7920.0Sy30.020.0'25.0Su75.071.0300400500600700REF.2844.2836.2827.2818.2810.8167.8667.9083.9417.9833.1246.1286.1313.1334.135827.026.525.825.324.89.009.199.379.539.6920.018.717.516.416.022.520.719.418.217.766.064.463.563.563.5PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 BGWNUCLEARTECHNOLOGIES
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32-1235127-01 3.3ModelGeometryToboundallinstrument/temperature sensingnozzlelocations inthepressurizer headsandshell,theradiusofthemodelednozzlepenetration wasdetermined sothatthetotalpressurestresswouldecpxalorexceedthetotalpressurestresspresentatallnozzlelocations.
Penetrations inthespherical headsexperience increased stressduetothehillsideeffectoftheskewedpenetration.
Penetrations inthecylindrical portionoftheshellexperience increased stressduetothelargerhoopstressandthelargerstressconcentration effectsduetothestressprofilearoundthepenetration.
Themodelinherently includedstresstoaccountforthehillsideeffectandthestressforthestressconcentration effectataholeinthecylindrical shell.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 BGWNUCLEARTECHNOLOGIES
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32-1235127-01 IJJCL0-I-C)(UICCCCI-DCCFigure3.1,FiniteElementModelGeometryandMaterials (inches)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 B&WNUCLEARTECHNOLOGIES
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32-1235127-01 4.0FiniteElementModelANSYS5.0Afiniteelementsoftware, Reference
[6],wasusedtoperformtheaxisymmetric thermalandstressanalysisofthenozzlepenetration.
Asufficient portionofthehead/shell wasmodeledtoattenuate thestressconcentration effectsatnozzlepenetration.
Thehead/shell andcladdingweremodeledusingaxisymmetric elements(PLANE42structural andPLANE55thermal).
 
==5.0 ThermalAnalysisThetransients==
inRef.[8]werereviewedforthoselikelytoproducemaximumtensilestressontheinsidesurfaceofthepressurizer (conservative forthefracturemechanics analysisinReference
[7]).Basedonthereview,thefollowing transients wereevaluated inthisanalysis:
100'F/hrHeatup,200'F/hrCooldown, aboundingUpsetCondition transient whichwasrepresented asa53'FStep-down (pressure 1740psia)anda53'FStep-up(pressure 2400psia),and'ossofSecondary Pressure.
TheHeatup,Step-down, Step-upandCooldowntransients werecombinedintoonecomputerrun(microfiche THERMAL.OUT) withHeatupfrom70'Fto653'F(0hoursto5.83hours),53'FStep-down (7hrinstantaneous),
53'FStep-up(8hrinstantaneous) andCooldownfrom653'Fto70'F(9hoursto11.915hours).TheLossofSecondary Pressuretransient wasrunandtheresultsarecontained inmicrofiche LPTHERM.OUT.
Thermalconditions wereimposedonthefiniteelementmodelasappliedheattransfercoefficients andbulkfluidtemperatures.
Heattransferwasassumedtooccuratonlytheinsidesurfaceofthepressurizer asshowninFigure5.1.Allothersurfaceswereassumedtobeinsulated.
Aconstantheattransfercoefficient wasusedtosimplifytheanalysisinaconservative manner.Sinceoverestimating thetensilestressesattheinsidesurfaceofthepressurizer wasconservative forthefracturemechanics analysisinReference
[7],theheattransfercoefficient wasselectedtoresultinconservatively hightensilestressesontheinsidesurfaceofthepressurizer.
DuringHeatupandtheStep-uptransients, heatingoftheinsidesurfacecausescompression ontheinsidesurfaceofthepressurizer.
Therefore, useofalowheattransfercoefficient resultsinconservative (tensile) stresses.
Conversely, duringCooldownandtheStep-down transient, ahighheattransfercoefficient resultsinconservative (tensile) stresses.
Therefore, nozzlesinPreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~299Date:295Page:10 B6cWNUCLEARTECHNOLOGIES
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32-1235127-01 thesteamspacewereconservatively represented usingheattransfercoefficients inthewaterspace(i.e.forheating,condensing steamcoefficients aregreaterthannaturalconvection coefficients inthewaterspaceandforcooling,naturalconvection steamcoefficients arelessthannaturalconvection coefficients inthewaterspace).Theheattransfercorrelations inRef.[2]werereviewedforhorizontal andverticalplates.Thecorrelation forahorizontal heatingplate,faceup(T>Tm)wasselectedasarepresentative heattransfercoefficient forthenozzlesinthewaterspace.TheresultsofthethermalanalyseswerereviewedusingtheANSYSPOST26postprocessor todetermine timeswhentheradialhT'soccurred.
Thetemperature attheinsidesurfaceofthepressurizer (essentially thebulkfluidtemperature) andtheradialhTareshowninFigures5.2through5.5.Thetemperature distribution attimesofextremehT'swerethenusedasinputsforthestressanalysessincetheextremehT'sresultedinextremethermalstresses.
Steadystatetemperature caseswerealsorunat653Fand2250psiawithoutmaterialdiscontinuity effects(T~T~microfiche STEADYST.OUT) andat653'Fand2400psiawithmaterialdiscontinuity effects(T,70'F,microfiche STRESS.OUT)
.Thefollowing tablesummarizes thecriticaltransient timesandidentifies theassociated pressures.
Thelocationofnodepairusedforevaluation ofthehT'swasthesamenodepairusedforthestresspathinSection6.0andisshowninFigure6.2andthePOST26resultsarecontained attheendofthethermalrunsPreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:11 BOWNUCLEARTECHNOLOGIES
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32-1235127-01 inthemicrofiche inSection9.0.Notethatalthoughthenodepairusedforevaluating theradialhTwasataspecified flawanglethroughtheshellwall,itwasrepresentative oftheradialgradientsincetheheattransferisonedimensional intheradialdirection (i.e.,theentireinsidesurfaceisisothermal andtheentireoutsidesurfaceisisothermal).
TABLE5.1,CRITICALTRANSIENT TIMESTRANSIENT TRANSIENT TIME(HR)PRESSURE(PSIA)Heatup5.832,250Step-down 7.06671,740Step-up8.06672,400SteadyState'.000 2,400Cooldown9.52471,028'ooldown 11.915SteadyState',250 LossofSecondary Pressure.051958200'Thepressurewasassumedtoequalthesaturation pressureat548'F'Includes materialdiscontinuity temperature effects(T,=70'F).'Excludes materialdiscontinuity temperature effects(T,=T~~653'F).PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~295 Page:12 gmmmlllll~~>
lllIINllllllll Illllllmllllll INgNNllllll llllllllllll+>~
Illlllllllllllll Illllllllllleaa grmmmllllla IrlllEIIIINISa IllllllllllmiEa Illlllllllmllir susmnssacaarr IRIIIRllllllf ROE~lllllllllltlOSR llllllllllllI5%%
~rrarrrrrrrrsQEar nrrrraraarkRssH ranrrraaraQsss karrrarrrrrrisoR raaanrrararrrra sarraarrrraasss&#xc3;
~arrrrraaraassRR
~aaraaarranee'aaaanrrnrrarrrr
~rrarrnarraarrra
 
B6WNUCLEARTECHNOLOGIES
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32-1235127-01 zLUDOKQnu?nu)0v-~OOCiElfIll/)-UU.UUjNOX>.NOoKHI-A1VAIIV)(91UjO0I-Figure5.2,ShellRadialhTTimeHistory,Heatup,53hTSteps6CooldownPreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:14 H08ANSYS5.0AOCT25199410:02:30PLOTNO.2POST26ZV1DIST0.75XF0.5YF0.5ZF-0.5CENTROIDHIDDENni5000I0MTEMPRAD00000STLUCIE1.IGS 10TIME12161820MIhl4JVlh)IO 6l8lr.e6lQl00tdW'C'CzV0Ul*00n00<CSTLUCIE1.IGS Oo20.40.60.8TIMEi+2l.6RAD(>>loca-l)ANSYS5.0AOCT25199409:07:48PLOTNO.POST26ZV1DIST0.75XF0.5YF0.5ZF05CENTROIDHIDDENnn0ElOgI0HW4)MIh>OJUlWIO B&WNUCLEARTECHNOLOGIES
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32-1235127-01 CIIQ~g)O~gg<zol0-Sl-opV)zLUDDXO~u)u)n<rOOOO>~isa~+~4IOXCO~4blKH000OONOA1VA(D(9ujODe~Figure5.5,InsideSurfaceTempandRadialhT,LossofSecondary PressurePreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Page:17 B6cWNUCLEARTECHNOLOGIES
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32-1235127-01
 
==6.0 StressAnalysisThetemperature==
distributions andpressures atthecriticaltimesinTable5.1wereimposedonthemodeltoobtainthestressesinthepressurizer shell.Thepressureboundaryconditions areshowninFigure6.1.Sincethefracturemechanics evaluation inReference
[7]requiresstressesalongaspecified flawplane,theANSYSPOST1postprocessor wasusedtotransform thestressesintotheflawplanecoordinate systemasshowninFigure6.2.Symmetryboundaryconditions wereusedattheedgeofthepressurizer headtorestricttheheadsmotiontoonlytheradialdirection.
Anodalforcewasappliedtotheheadtorepresent theendcaploaddeveloped atthenozzle(nozzleendcapload=mr'(pressure)
~w(.6875)'(pressure)
~1.4849(pressure)).
Thenodalforcewasconservatively appliedtotheoutsidesurfaceofthemodelsinceitwouldtendtoincreasethetensilestressesinthepressurizer shellwhichistheregionofinterest.
Completestressresultsarecontained inthemicrofiche ofSection9.0.ThestressesasrequiredfortheFManalysisaresummarized intheTables6.1through6.8andFigures6.3through6.10.Notethatthestressesareinpsi.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:18 BOWNUCLEARTECHNOLOGIES NON-PROPRIETARY**
32-1235127-01 TABLE6~1gENDOFHEATUPgP~2250PSIS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-7283.8-2390.62348.75917.87064.78210.29242.59868.310502.11084.11488.11893.12269.12553.12834.13098.13309.13515.13713.13877.14037.14192.14323.14453.14580.14686.14793.14898.14991.15083.15141.15163.15188.15246.15305.15354.15394.15433.15473.15507.15530.15553.15577.15601.15938.16287.16624.16947.17256.SY5973.25126.04768.95548.96676.27778.08839.19535.710230.10889.11363.11838.12287.12640.12991.13324.13601.13873.14133.14355.14571.14780.14960.15134.15304.15450.15594.15732.15848.15965.16109.16263.16413.16513.16610.16701~16784.16865.16946.17022.17087.17152.17217.17281.16990.16681.16387.16106.15838.SZ60276.55404.50677.46241.44495.42714.41030.40141.39242.38404.37926.37440.36991.36728.36456.36206.36064.35908.35768.35692.35604.35527.35487.35441.35400.35380.35356.35334.35323.35313~35295.35291.35286.35264.35241.35234.35214.35192.35170.35150.35120.35090.35060.35031.34986.34940.34894.34848.34802.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:~295Page:19 B&WNUCLEARTECHNOLOGIES NON-PROPRIETARY**
32-1235127-01, TABLE6.2,53FSTEPDOWN,P~1740PSIS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302~15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644'6604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-6913.0-1682.63307.96953.47957.18893.39672.710050.10402.10696.10819.10932.11024.11030.11038.11037.10989.10954.10912.10846.10794.10736.10672.10615.10555.10499.10444.10391.10346.10299.10238.10162.10088.10053.10020.9980.39950.79923.19895.99869.69852.29835.49819.19803.310004.10214.10416.10609.10794.SY8348.26909.25990.66441.37527.88532.99420.09888.710328.10707.10889.11060.11203.11250.11298.11332.11313.11307.11290.11246.11214.11175.11126.11084.11038.10995.10953.10911.10872.10834.10823.10828.10831'0819.10807.10791.10789.10789.10790.10791.10803.10816.10828.10839.10650.10452.10263.10081.9908.0SZ70271.62772.55758.49572.46742.43956.41368.39639.37939.36375.35178.34011.32937.32044.31191.30394.29697.29052.28434.27886.27380.26888.26458.26052.25654.25317.24988.24670.24402.24135.23884.23665.23447.23257.23071.22896.22751.22611.22472.22345.22248.22152.22057.21962.21903.21846.21791.21736.21681.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:20 B&WNUCLEARTECHNOLOGZES NON-PROPRZETARY**
32-1235127-01 TABLE6.3,53FSTEPUP,P~2400PSZS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-7254.5-2602.91924.95376.56556.37759.18874.09593.910334.11027.11544.12066.12554.12950.13338.13705.14019.14316.14605.14855.15091.15324.15523.15716.15906.16065.16222.16377.16510.16643.16734.16781.16832.16912.16995.17065.17121.17175'7229.17276.17306.17337.17368.17400.17777.18168.18544.18905.19251.SY5009.84374.64204.65068.26184.47297.48404'9179.89966.410731.11319.11914.12486.12961.13433.13885.14279.14658.15025.15349.15656.15955.16217.16466.16711.16919.17123'7319.17481.17644.17833.18028.18220.18347.18471.18589.18691.18790.18889.18981.19056.19132.19207.19282'8956.18611.18281.17966.17668.SZ55366.51513.47681.43963.42672.41314.40030.39507.38957.38443.38279.38091.37914.37923.37897.37877.37966.38007.38058.38169.38238.38318.38420.38500.38585.38668.38744.38815.38881.38946.38994.39048.39101.39119.39134.39167.39173~39175.39176.39177.39158.39139.39119.39099.39055.39009.38962.38915.38867.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:21 BOWNUCLEARTECHNOLOGIES
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32-1235127-01 TABLE6.4,STEADYSTATE,Tref70F,Tunif653F,P=2400PSIAS0.00000E+00 0.119590.239180.358760.478350.597940~717530.837110.956701.07631.19591.31551.43511.55461.67421.7938l.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354~9031'.0227 5.14235.26195.38145.50105.62065.7402SX-8203.5-2489.23016.77124.08389.69630.610730.11367.12002.12576.12950.13321.13659.13895.14127.14342.14499.14653.14797.14906.15014.15116.15196.15275.15351.15411.15471.15531.15582.15632.15649.15633.15620.15646.15675.15693.15708.15724.15739.15751.15759.15767~15776.15785.16120.16469.16804.17126.17434.SY7687.16501.05884.86653.77928.79155.610311.11033.11745.12410.12859.13306.13723.14028.14332.14617.14837.15055'5260.15424.15585.15737.15861.15983.16099.16195.16289.16379.16451.16524,16627.16743.16857.16924.16989.17048.17106.17164.17221.17276.17327.17377.17428'7478.17179.16864.16563.16275.16001.SZ72516.66004.59778.54082.51714.49332.47103.45809.44517.43322.42543.41766.41049.40544.40042.39574.39228.38882.38558.38308.38058.37821.37634.37446.37266.37121.36975.36833.36717.36600.36483.36387.36292.36193.36094.36012.35931.35851.35772.35699.35631.35565.35498.35432.35372.35312.35253.35193.35134.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:22 B&WNUCLEARTECHNOLOGIES NON-PROPRIETARY**
32-1235127-01 TABLE6.5,COOLDOWN, Psat=1028 PSIAS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381~91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434'6394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-4251.9-949.122183.54457.55075.95642.06110.76333.86537.56703.06763'6815.36851.06834.56816.96791.26737.16688.06633.16563.86500.66433.46361.26293.06222.36153.76085.96019.05957.75895.35825.55749.15673.45623.65575.35523.15481.35441.55402.05364.65338.65313.05287.85263.05363.85470.85573.35671.35764.8SY5658.24628.93925.54126.64801.85420.15958.36232.96488.46707.96802.56889.76958.56965.96972.46968.36931.06898.16857.66799.76746.86688.86624.26562.56497.96434.86372.36309.86250.46190.66147.26114.06079.56040.66001.65960.25932.05906.15880.05856.35846.35835.95825.35814.45707.65596.85490.35388.15290.2SZ45637.40460.35641.31472.29573.27713.26003.24848.23716.22680.21877.21094.20370.19760.19173.18620.18130.17668.17222.16818.16438.16067.15731.15411.15095.14816.14542,14276.14041.13807.13586.13386.13186.13011.12839.12674.12536.12403.12271.12149.12059.11969.11879.11791.11743.11699.11655.11612.11569.PreparedReviewedBy:A.M.MillerBy:H.T.HarrisonDate:295Date:295Page:23 B&WNUCLEARTECHNOLOGIES
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32-1235127-01 TABLE6.6,ENDOFCOOLDOWN, P~OPSIS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-519.07129.63701.441078.81148.31181.91182.21146.21094'1031.4954.61871.24785.65694.22602.49510.30415.58324.91233.00141.5754.659-33.564-117.81-199.13-281.30-356.35-430.77-504.36-570.83-637.84-699.27-754.44-810.04-858.93-907.49-955.43-994.11-1031.2-1068.3-1102.5-1125.9-1149.3-1172.6-1195.7-1229.8-1263.7"1296.6-1328.4-1359.1SY2077.71580.41144.8988.461099.81183.71219.91190.41150.61098.61021.0938.62852'8754.86657.42558.39454.90355.00253.68152.2055.383-42.486-136.32-226.71-317.58-400.69-482.67-563.15-635.20-707'0-777.36-843.39-909.32-963.51-1016.9-1070.3-1112.6-1153.1-1193.7-123103-1256.9-1282.6-1308.5-1334.6-1317.7-1298.4-1280.5-1263.8-1248.4SZ12153.10004.8066.56563.85865.25204.24606.34128.03668.53253.82882.42526.72198.21888.01595.41317.91048.9800.61558'6323'1106.80-107'4-310.33-501.66-691.53"864.00-1032.2-1196.1-1343.4-1490.0-1626.1-1752.9-1879.0-1984.9-2088.8-2193.2-2276.2-2355.1-2433.4-2506.0-2555.8-2605.1-2653'-2702.2-2720.1-2735.3-2750.1-2764.5-2778.6PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Page:24 B&WNUCLEARTECHNOLOGZES
**BWNTNON-PROPRIETARY**
32-1235127-01 TABLE6.7,STEADYSTATETunifTref653,P=2250PSIS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.7938l.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-7698.3-2331.22839.06694.97882.49046.210077.10674.11270.11807.12157.12503.12820.13039.13255.13455.13600.13743.13877.13977.14077.14172.14245.14318.14388.14443.14498.14552.14599.14645.14660.14644.14631.14654.14681.14697.14710.14724.14738.14749.14755.14762.14770.14778.15092.15418'5732'6033.16321.SY7242'6121.45535.26252.47449.38600.79684.910362.11029.11652.12072.12490.12880.13164.13448.13713.13918.14121.14311.14463.14612.14753'4868.14981.15088.15177.15264.15347.15413.15480.15576.15683.15789.15851.15911.15965.16019.16072..16125.16176.16223.16270.16317.16364.16084.15788.15506.15237.14980.SZ68183.62041.56169.50803.48572.46328.44230.43011.41793.40667.39932.39199.38521.38043.37567.37125.36795.36467.36159.35920.35683.35457.35278.35099.34927.34788.34649.34513.34401.34289.34177.34085.33993.33898.33804.33725.33648.33572.33496.33426.33362.33299.33235.33173.33116.33060.33004.32948.32892.PreparedReviewedBy:A.M.MillerBy:H.T.HarrisonDate:295Date:295Page:25 B&WNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01 TABLE6.8,LOSSOFSECONDARY
: PRESSURE, P=200PSIS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302.15262'7222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-5205.0587.395836.89361.39958.310290.10363.10092.9703.69218.78598.47929.17239.16491.25747.05000.94228.63502.82767.62036.51355.7663.808.7152-616.39-1248.7-1812.4-2368.7-2915.8-3393.9-3876.5-4314.1-4701.6-5092.1-5422.5-5749.9-6073.0-6325.6-6566.3-6806.8-7026.7-7172.2-7316.9-7460.9-7604.2-7816.6-8028.3-8233.2-8431.3-8622:6SY15781.12266.9310.98486.69430.210146.10524.10362.10107.9732'9133.38489.47802.17019.96235.65437.84599.93801.62992.42182.81422.8654.06-76.898-773.97-1474.9-2101.0-2715.4-3315~1-3835.6-4359.0-4853.0-5312.7-5771.4-6135.3-6492.4-6849.9-7122.2'-7380.6-7639.3-7877.5-8031.6-8186.8-8343'-8500.8-8385.2-8254.9-8132.8-8019.2-7913.9SZ98478.82490.68060.56501.50752.45286.40344.36430.32662.29217.26146.23197.20462.17888.15461.13164.10941.8912.16934.65031.03296.11579.5-22.322-1522.1-3010.1-4329.8-5611.0-6851.7"7933.1-9009.0-9994.7-10897.-11795.-12524.-13236.-13951~-14503.-15023.-15539.-16014.-16330.-16643."16952.-17257."17369.-17463.-17554.-17643.-17729.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:26 llmml5lmlllll illlmmllm~<
NINNIIIIIIII uNllllmlmll lllllllllllllN lllllllmlll+>~
Iglllllllll&#xc3;~~
llllllllllllllla gllmlllllllESa gllllglNIIEEr IllllllmllNIER llllmmllllllmRNS XIXXXXXXXXXXlIOSQl)llmXQXXi550 IfffffRffffIINSR rarararraaasssRQ raaararaaar!
Rs88Raarrrrrrra5%8%%
RrrraaaararassoR iaraaaaarraa558%
raaaaraaaara sass~aaaararaarrsRRR srrrrrrarrrsw5%%
~rrrrraraaaarrar
~raarrrara armereNNIIIIINNma BRWNUCLEARTECHNOLOGIES
**BWNTNON"PROPRIETARY**
32"1235127-01 "Intensionally LeftBlank-ContainsBWNTProprietary Information" Figure6.2,StressPathforFlawPlanePreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~295Date:295Page:28 B&WNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01 m-eI--oggSgZ>r~Q-IIcnl-cu0cnujm 0-j'I-I-Q~~Z~gZOe~OI-DR<00 40oQ.Q.cONI-Q.ZZ ZO0KOCS~~Q~ann/OOOOs~)sr~+QBU.lLILLU 00Oa0)HecO40WOX0COPFigure6.3,EndofHeatupStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:29 BOWNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01 v)l-ol0v)ulcl+l-ZO(yj~OI-Z
<0040oCLO.SNl-O.ZZ ZulOOKOCS~~Q+u)u)u)0v-gOO(5PIlIIIZ)Bu.u.u.uj NOXO-NOOI-Ng)gHecogcOCQG.IOCLul8Figure6',53'FStep-down Stresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:25Date:295Page:30 BOWNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01 COgeP)Z<cOQ.ggZOg)9QI-D><QQ COSQ.Q.V)NI-Q.ZZ OOx0CS~~.QvOOOOspssagOaU)aeiO'VcvPi55cv000'igure6.5,53'FStep-upStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:31 B&WNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01 ZO"90I->K<00 c(0v-Q.o.cOU)I-0 zztllCIQKOO+eee0rIOOO<IfIIIPNMCOn40OIHeiO40WOXnnFigure6.6,SteadyState653'F(Tref70'F)Stresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Page:32 BEcWNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01
~X~f-%O~<~~i~CfCfZO"BOf-OR<00
<0a.a.rnrnf=a.aa OOOCI~~.Q'nnngv-gOOCjPIfIIlgMV)NOaNHOh4PtA5OCOQ.COOlC)E50.z0900OFigure6.7,CooldownStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:33 BOWNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01 g~PAZ~~t-~>+IICZP-Q.Q.V) gP0.ZZzOOKOnu?u?u?OK~IOOO)~sang)-U.U.U.Ul NOXO-NO0-N(OMCOO~0MHC44OooXcvOV)CDIZ090O0OeFigure6.8,EndofCooldownStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:34 BOWNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01 Z0~90gg><OQ COSQ.O.V)Nl-fLZZ ZLllOOKOO~~.g5gOOQaI~II~PNMaO40MHC5Oo8rgge959Figure6.9,SteadyState653'F(Tref=Tunif)Stresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~295Date:295Page:35 BOWNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01
<X"Rogg90PD><00
<0O.O.COCOI-O.aa ZLUClOKO~IAIALOQ~gOOO)~aISgN0-rCOaOHcvOCOCL8ICLUJKDCOCOLCjKC0R0OLljCO0COCO0Figure6.10,LossofSecondary PressureStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:36 BEcWNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01 7.0ANSYS5.0AVerification TheANSYSanalysiscode,version5.0A,wasverifiedusingclosedformsolutions forhoopstressinasphereandstressconcentration factors.Thefollowing comparison offiniteelement(FE)stressresultsandclosedformsolutions indicated thatthesoftwareprovidedaccurateresults.Therefore, ANSYSBOAwasverifiedforthisapplication.
FiniteElementResultsfromTable6.7,Pressure2250psiaDistanceHooStressSz0.04.30526818333648HoopStressRef.[5,Table28case3a.]e~pr/2te=2250(120.5)/[2(4.094)]~33,112psiComparedto33,648psi(FE),h%=(33648/33112
-1)(100%)1.6%StressConcentration atHoleSCF=a,,/a,,>>68183/33648 2.026(FE)Comparedto2(fromSectionA3.3),h%(2.026/2-1)(100%)1.3%PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Page:37 B&WNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01
 
==8.0 References==
1)ASMEBoilerandPressureVesselCode,SectionIII,Division1,Appendices, 1986EditionwithnoAddenda.2)BWNSDocumentNo.51-1155656-00, "Standard Correlations forNaturalConvection".
"BWNTProprietary Document."
3)BWNSDocumentNo.NPGD-TM-500, "NPGDMaterialProperties ProgramUser'sManual",Rev.D,March,1985."BWNTProprietary Document."
4)Notused.5)Young,W.C.,"Roark'sFormulasforStress&Strain",6thEditionMcGraw-Hill, NewYork,1989.6)DeSalvo,G.J.andGorman,R.W.,"ANSYSUser'sManualforRevision5.0",1992,SwansonAnalysisSystems,Houston,Pennsylvania.
7)BWNTDocument32-1235128-00, "FMAnalysisofSt.LuciePressurizer Instrument Nozzles".
"BWNTProprietary Document."
8)BWNTDocument38-1210588-00, "Pressurizer Instrument Nozzles,FMDesignInput,"forSt.LucieUnit2,dated11/11/94(FP&LNumberJPN-PSLP-94-631, File:PSL-100-14).
9)'FloridaPower&LightDrawingNo.2998-19321, Rev.0,"TopHeadInstrument NozzlesRepair".10)'FloridaPower&LightDrawingNo.2998-18709, Rev.1,"Pressurizer GeneralArrangement".
*References markedwithan"asterisk" areretrievable fromtheUtilities RecordSystem.uthorized Pro'ectManager's Signature PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:38 BOWNUCLEARTECHNOLOGIES
**BWNTNON-PROPRIETARY**
32-1235127-01
 
==9.0 Microfiche==
Microfiche arenotincludedinthisdocumentbecausetheycontainmathmodelwhichisBWNTProprietary.
However,forcompleteness thelistingofthecomputerrunsascontained inRev.0ofthedocument("BWNTProprietary"
)aregivenbelow.FILENAMETHERMAL.OUTSTRESS.OUTLPTHERM.OUTLPSTRESS.OUT STEADYST.OUT ENDCD.OUT DESCRIPTION Composite transient thermalrunsincluding 100'F/hrHeatup,53'FStep-down, 53'FStep-upand200'F/hrCooldownStressrunsforthecomposite transient in"THERMAL.OUT" LossofpressurethermalrunStressrunfortheLossofPressuretransient Steadystatestresses(TrefTunif653'F)Stressrunfortheendofthe200'F/hrCooldown.
PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:39  
',lt8A00}}
',lt8A00}}

Revision as of 15:57, 29 June 2018

Nonproprietary Version of Stresses for St Lucie Unit 2 Pressurizer Lefm.
ML17228B048
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 02/15/1995
From: HARRISON H T, MILLER A M
BABCOCK & WILCOX CO.
To:
Shared Package
ML17228B046 List:
References
32-1235127-01, 32-1235127-01-R01, 32-1235127-1, 32-1235127-1-R1, NUDOCS 9503070361
Download: ML17228B048 (43)
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Text

FLORIDAPOWERANDLIGHTCOMPANYNUCLEARENGINEERING DEPARTMENT P.O.Box14000JunoBeach,Florida33408St.LucieNuclearPowerPlantUnit2ATTACHMENT 8STRESSESFORST.LUGIEUNIT2PRESSURIZER LEFMPreparedbyBBWNUCLEARSERVICECOMPANYForSt.LucieNuclearPowerPlant10MilesSouthofFt.PierceonA1AFt.Pierce,Florida33034Commercial ServiceDate:NRCDocketNumber.DocumentNumber.RevisionNumber.0August8,198350-38932-1235127-01 Date:February15,1995FHQ:PSL1SNB.RPT Page395030703&i 950302PDRADOCK050003B9PPDR

BWNT-20697-2(11/89)

JllBBMINUCLFAHCMTECHNOI.OGIES CALCULATlONAL SUMMARYSHEET(CSS)DOCUMENTIDENTIFIER 32-1235127-01 TITLEStressesforSt.LucieUnit2,Pressurizer LEFMPREPAREDBY'EVIEWED BY:A.M.MIllerSIGNATURTITLEEngr.IVCOST41020REF.~AMEH.T.HarrisoSIGNATUR~~9'5TITLEPrincialEnr.38TMSTATEMENT'EVIEWER PURPOSEANDSUMMARYOFRESULTSThepurposeofthisdocumentwastodetermine enveloping NormalandUpset,Condition stressesfortheseven1"instrumentation/temperature sensingnozzlesinthepressurizer atSt.LucieUnit2.Resultsfromthisdocumentwereusedasinputstothefracturemechanics evaluation, Reference

[7].estressresultsaresummarized inTables6-1through6.8inSection6.0.Notethatthermalstratification effectswerenotconsidered inthisanalysis.

    • BWNTNON-PROPRIETARY**

THEFOLLOWING COMPUTERCODESHAVEBEENUSEDINTHISDOCUMENT:

CODEIVERSIONIREVCODEIVERSIONIREVTHISDOCUMENTCONTAINSASSUMPTIONS THATMUSTBEVERIREDPRIORTOUSEONSAFETY-RELATED WORKYES()No(X)FAG~OF BGWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 RECORDOFREVISIONS RevisionNumberPagesAdded/ChanchedDescritionAllOriginalissue01AllIssueofNon-Proprietary VersionPreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:2 BRWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01

1.0 Introduction

42.0Assumptions 43.0DesignInputs3.1DesignCharacteristics 3.2MaterialProperties 3.3ModelGeometry~~~~5~~0~684.0FiniteElementModel.......................105.0ThermalAnalysis...................~.....106.0StressAnalysis..........................187.0ANSYS5.0AVerification

......................378.0References 389.0Microfiche

~~~~~~~~~~~~~~~39PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 B&WNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32"1235127-01

1.0 Introduction

Duringthe1994refueling outage,externalleakagewasidentified atthepressurizer instrument nozzle"C"ofFloridaPower&LightCompany's St.LucieUnit2.Subsecpxent NDEidentified indications ontheJ-weldsforallfoursteamspaceinstrument nozzles.Modifications weremadeandjustifications performed todetermine thepotential forcrackgrowthduringplantoperation.

Theevaluation performed atthetimewasconservatively limitedtoonecyclebasedonthedesigninformation available.

Thepurposeofthisanalysisistoprovidestressanalysisinputforaboundingfracturemechanics flawevaluation sothatitisapplicable toallseveninstrument/temperature 1"nozzlesinthepressurizer.

Resultsfromthisdocumentwereusedasinputstothefracturemechanics evaluation, Reference

[7].Theresultswerepresented inthecoordinate systemofthepostulated flawasrecpxired byReference

[7]sincethefracturemechanics evaluation determined thepostulated flaws,seeFigure6.2.Thecomponent stressesalongapostulated flawplaneshowninFigure6.2weredetermined usingANSYS5.0Afiniteelementsoftware.

2.0 Assumptions

1)Materialproperties forSA-240,Type304wereassumedforthestainless steelcladdingonthepressurizer headsandshell.2)Theeffectsofthenozzlewereneglected indetermining theshell/head stresses(i.e.thenozzlewasomittedfromthefiniteelementmodel).3)ThehTbetweenthecladdingsurfacetemperature andthebulkfluidtemperature wasassumedtobeaspecifichT'Fforcalculating thenaturalconvection heattransfercoefficient.

4)Pipingloadsontheinstrumentation/temperature sensingnozzlesproducenegligible stressesonthepressurizer shell/head.

5)Effectsofthermalstratification werenotconsidered inthisanalysis.

6)Hydrotest wasassumedtobeshophydrotest only.Therefore, nofuturehydrotests areassumedtooccur.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~295Date:295 B&WNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127" 013.0DesignInputs3.1DesignCharacteristics Thefollowing designparameters forthepressurizer weretakenfromReference

[8].HeatupCooldownOperating PressureOperating Temperature MinimumPressure(ReactorTriptransient)

MaximumPressure(Abnormal LossofLoadtransient.)

100'F/hr200'F/hr2250psia653F1740psia(653-616'FhT)2400psia(664-614'FhT)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:~299 BOWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 3.2MaterialProperties Thissectionsummarizes thematerialproperties usedinthethermal/stress analysis.

ThematerialtypescomefromReferences

[8-10]andassumption 1.References forthematerialproperties aregiveninthetablesbelow.Thematerialpropertydesignation andunitsare:KXX-thermalconductivity, btu/(hr-in-'F)

DENS-density,lb/in'-specificheat,btu/(lb-'F)

Cisacalculated valuebasedonCKXX/(DENS xThermalDiffusivity) wherethermaldiffusivity istakenfromthesamesourceasKXXEX-Young'sModulus,psix10'LPX-coefficient ofthermalexpansion, in/in/'Fx10~Sm-designstressintensity, ksiSy-yieldstrength, ksiSu-ultimatestrength, ksiv-Poisson's ratio~.3forallmaterials PRESSURIZER HEADSANDSHELLSA-533GR-BCL-1,LowAlloySteel(Mn-.SMo-.SNi)

TEMP100200300400500600700REFDENS.2839.2831.2823.2817.2809.2802.27941.88331.95001.98331.98331.95831.91671.8583.1079.1139.1196.1257.1323.1389.1448EX29.328.828.327.727.326.725.5ALPX7.067.257.437.587.707'37.94Sm26.726.726.726.726.726.726.7Sy50.047.546.145.144.543.843.1Su80.080.080.080.080.080.080.0PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 B&WNUCLEARTECHNOLOGIES

    • BWNTNON"PROPRIETARY**

32-1235127-01 HEADANDSHELLCLADDING304STAINLESS STEEL,SA-240ASSUMED(18Cr-8Ni)

TEMP100200DENS.2862.2853.7250.7750.1157.1209EX28.127.6ALPX8.558.7920.0Sy30.020.0'25.0Su75.071.0300400500600700REF.2844.2836.2827.2818.2810.8167.8667.9083.9417.9833.1246.1286.1313.1334.135827.026.525.825.324.89.009.199.379.539.6920.018.717.516.416.022.520.719.418.217.766.064.463.563.563.5PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 BGWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 3.3ModelGeometryToboundallinstrument/temperature sensingnozzlelocations inthepressurizer headsandshell,theradiusofthemodelednozzlepenetration wasdetermined sothatthetotalpressurestresswouldecpxalorexceedthetotalpressurestresspresentatallnozzlelocations.

Penetrations inthespherical headsexperience increased stressduetothehillsideeffectoftheskewedpenetration.

Penetrations inthecylindrical portionoftheshellexperience increased stressduetothelargerhoopstressandthelargerstressconcentration effectsduetothestressprofilearoundthepenetration.

Themodelinherently includedstresstoaccountforthehillsideeffectandthestressforthestressconcentration effectataholeinthecylindrical shell.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 BGWNUCLEARTECHNOLOGIES

    • BWNTNON"PROPRIETARY**

32-1235127-01 IJJCL0-I-C)(UICCCCI-DCCFigure3.1,FiniteElementModelGeometryandMaterials (inches)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295 B&WNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 4.0FiniteElementModelANSYS5.0Afiniteelementsoftware, Reference

[6],wasusedtoperformtheaxisymmetric thermalandstressanalysisofthenozzlepenetration.

Asufficient portionofthehead/shell wasmodeledtoattenuate thestressconcentration effectsatnozzlepenetration.

Thehead/shell andcladdingweremodeledusingaxisymmetric elements(PLANE42structural andPLANE55thermal).

5.0 ThermalAnalysisThetransients

inRef.[8]werereviewedforthoselikelytoproducemaximumtensilestressontheinsidesurfaceofthepressurizer (conservative forthefracturemechanics analysisinReference

[7]).Basedonthereview,thefollowing transients wereevaluated inthisanalysis:

100'F/hrHeatup,200'F/hrCooldown, aboundingUpsetCondition transient whichwasrepresented asa53'FStep-down (pressure 1740psia)anda53'FStep-up(pressure 2400psia),and'ossofSecondary Pressure.

TheHeatup,Step-down, Step-upandCooldowntransients werecombinedintoonecomputerrun(microfiche THERMAL.OUT) withHeatupfrom70'Fto653'F(0hoursto5.83hours),53'FStep-down (7hrinstantaneous),

53'FStep-up(8hrinstantaneous) andCooldownfrom653'Fto70'F(9hoursto11.915hours).TheLossofSecondary Pressuretransient wasrunandtheresultsarecontained inmicrofiche LPTHERM.OUT.

Thermalconditions wereimposedonthefiniteelementmodelasappliedheattransfercoefficients andbulkfluidtemperatures.

Heattransferwasassumedtooccuratonlytheinsidesurfaceofthepressurizer asshowninFigure5.1.Allothersurfaceswereassumedtobeinsulated.

Aconstantheattransfercoefficient wasusedtosimplifytheanalysisinaconservative manner.Sinceoverestimating thetensilestressesattheinsidesurfaceofthepressurizer wasconservative forthefracturemechanics analysisinReference

[7],theheattransfercoefficient wasselectedtoresultinconservatively hightensilestressesontheinsidesurfaceofthepressurizer.

DuringHeatupandtheStep-uptransients, heatingoftheinsidesurfacecausescompression ontheinsidesurfaceofthepressurizer.

Therefore, useofalowheattransfercoefficient resultsinconservative (tensile) stresses.

Conversely, duringCooldownandtheStep-down transient, ahighheattransfercoefficient resultsinconservative (tensile) stresses.

Therefore, nozzlesinPreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~299Date:295Page:10 B6cWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 thesteamspacewereconservatively represented usingheattransfercoefficients inthewaterspace(i.e.forheating,condensing steamcoefficients aregreaterthannaturalconvection coefficients inthewaterspaceandforcooling,naturalconvection steamcoefficients arelessthannaturalconvection coefficients inthewaterspace).Theheattransfercorrelations inRef.[2]werereviewedforhorizontal andverticalplates.Thecorrelation forahorizontal heatingplate,faceup(T>Tm)wasselectedasarepresentative heattransfercoefficient forthenozzlesinthewaterspace.TheresultsofthethermalanalyseswerereviewedusingtheANSYSPOST26postprocessor todetermine timeswhentheradialhT'soccurred.

Thetemperature attheinsidesurfaceofthepressurizer (essentially thebulkfluidtemperature) andtheradialhTareshowninFigures5.2through5.5.Thetemperature distribution attimesofextremehT'swerethenusedasinputsforthestressanalysessincetheextremehT'sresultedinextremethermalstresses.

Steadystatetemperature caseswerealsorunat653Fand2250psiawithoutmaterialdiscontinuity effects(T~T~microfiche STEADYST.OUT) andat653'Fand2400psiawithmaterialdiscontinuity effects(T,70'F,microfiche STRESS.OUT)

.Thefollowing tablesummarizes thecriticaltransient timesandidentifies theassociated pressures.

Thelocationofnodepairusedforevaluation ofthehT'swasthesamenodepairusedforthestresspathinSection6.0andisshowninFigure6.2andthePOST26resultsarecontained attheendofthethermalrunsPreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:11 BOWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 inthemicrofiche inSection9.0.Notethatalthoughthenodepairusedforevaluating theradialhTwasataspecified flawanglethroughtheshellwall,itwasrepresentative oftheradialgradientsincetheheattransferisonedimensional intheradialdirection (i.e.,theentireinsidesurfaceisisothermal andtheentireoutsidesurfaceisisothermal).

TABLE5.1,CRITICALTRANSIENT TIMESTRANSIENT TRANSIENT TIME(HR)PRESSURE(PSIA)Heatup5.832,250Step-down 7.06671,740Step-up8.06672,400SteadyState'.000 2,400Cooldown9.52471,028'ooldown 11.915SteadyState',250 LossofSecondary Pressure.051958200'Thepressurewasassumedtoequalthesaturation pressureat548'F'Includes materialdiscontinuity temperature effects(T,=70'F).'Excludes materialdiscontinuity temperature effects(T,=T~~653'F).PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~295 Page:12 gmmmlllll~~>

lllIINllllllll Illllllmllllll INgNNllllll llllllllllll+>~

Illlllllllllllll Illllllllllleaa grmmmllllla IrlllEIIIINISa IllllllllllmiEa Illlllllllmllir susmnssacaarr IRIIIRllllllf ROE~lllllllllltlOSR llllllllllllI5%%

~rrarrrrrrrrsQEar nrrrraraarkRssH ranrrraaraQsss karrrarrrrrrisoR raaanrrararrrra sarraarrrraasssÃ

~arrrrraaraassRR

~aaraaarranee'aaaanrrnrrarrrr

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B6WNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 zLUDOKQnu?nu)0v-~OOCiElfIll/)-UU.UUjNOX>.NOoKHI-A1VAIIV)(91UjO0I-Figure5.2,ShellRadialhTTimeHistory,Heatup,53hTSteps6CooldownPreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:14 H08ANSYS5.0AOCT25199410:02:30PLOTNO.2POST26ZV1DIST0.75XF0.5YF0.5ZF-0.5CENTROIDHIDDENni5000I0MTEMPRAD00000STLUCIE1.IGS 10TIME12161820MIhl4JVlh)IO 6l8lr.e6lQl00tdW'C'CzV0Ul*00n00<CSTLUCIE1.IGS Oo20.40.60.8TIMEi+2l.6RAD(>>loca-l)ANSYS5.0AOCT25199409:07:48PLOTNO.POST26ZV1DIST0.75XF0.5YF0.5ZF05CENTROIDHIDDENnn0ElOgI0HW4)MIh>OJUlWIO B&WNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 CIIQ~g)O~gg<zol0-Sl-opV)zLUDDXO~u)u)n<rOOOO>~isa~+~4IOXCO~4blKH000OONOA1VA(D(9ujODe~Figure5.5,InsideSurfaceTempandRadialhT,LossofSecondary PressurePreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Page:17 B6cWNUCLEARTECHNOLOGIES

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32-1235127-01

6.0 StressAnalysisThetemperature

distributions andpressures atthecriticaltimesinTable5.1wereimposedonthemodeltoobtainthestressesinthepressurizer shell.Thepressureboundaryconditions areshowninFigure6.1.Sincethefracturemechanics evaluation inReference

[7]requiresstressesalongaspecified flawplane,theANSYSPOST1postprocessor wasusedtotransform thestressesintotheflawplanecoordinate systemasshowninFigure6.2.Symmetryboundaryconditions wereusedattheedgeofthepressurizer headtorestricttheheadsmotiontoonlytheradialdirection.

Anodalforcewasappliedtotheheadtorepresent theendcaploaddeveloped atthenozzle(nozzleendcapload=mr'(pressure)

~w(.6875)'(pressure)

~1.4849(pressure)).

Thenodalforcewasconservatively appliedtotheoutsidesurfaceofthemodelsinceitwouldtendtoincreasethetensilestressesinthepressurizer shellwhichistheregionofinterest.

Completestressresultsarecontained inthemicrofiche ofSection9.0.ThestressesasrequiredfortheFManalysisaresummarized intheTables6.1through6.8andFigures6.3through6.10.Notethatthestressesareinpsi.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:18 BOWNUCLEARTECHNOLOGIES NON-PROPRIETARY**

32-1235127-01 TABLE6~1gENDOFHEATUPgP~2250PSIS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-7283.8-2390.62348.75917.87064.78210.29242.59868.310502.11084.11488.11893.12269.12553.12834.13098.13309.13515.13713.13877.14037.14192.14323.14453.14580.14686.14793.14898.14991.15083.15141.15163.15188.15246.15305.15354.15394.15433.15473.15507.15530.15553.15577.15601.15938.16287.16624.16947.17256.SY5973.25126.04768.95548.96676.27778.08839.19535.710230.10889.11363.11838.12287.12640.12991.13324.13601.13873.14133.14355.14571.14780.14960.15134.15304.15450.15594.15732.15848.15965.16109.16263.16413.16513.16610.16701~16784.16865.16946.17022.17087.17152.17217.17281.16990.16681.16387.16106.15838.SZ60276.55404.50677.46241.44495.42714.41030.40141.39242.38404.37926.37440.36991.36728.36456.36206.36064.35908.35768.35692.35604.35527.35487.35441.35400.35380.35356.35334.35323.35313~35295.35291.35286.35264.35241.35234.35214.35192.35170.35150.35120.35090.35060.35031.34986.34940.34894.34848.34802.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:~295Page:19 B&WNUCLEARTECHNOLOGIES NON-PROPRIETARY**

32-1235127-01, TABLE6.2,53FSTEPDOWN,P~1740PSIS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302~15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644'6604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-6913.0-1682.63307.96953.47957.18893.39672.710050.10402.10696.10819.10932.11024.11030.11038.11037.10989.10954.10912.10846.10794.10736.10672.10615.10555.10499.10444.10391.10346.10299.10238.10162.10088.10053.10020.9980.39950.79923.19895.99869.69852.29835.49819.19803.310004.10214.10416.10609.10794.SY8348.26909.25990.66441.37527.88532.99420.09888.710328.10707.10889.11060.11203.11250.11298.11332.11313.11307.11290.11246.11214.11175.11126.11084.11038.10995.10953.10911.10872.10834.10823.10828.10831'0819.10807.10791.10789.10789.10790.10791.10803.10816.10828.10839.10650.10452.10263.10081.9908.0SZ70271.62772.55758.49572.46742.43956.41368.39639.37939.36375.35178.34011.32937.32044.31191.30394.29697.29052.28434.27886.27380.26888.26458.26052.25654.25317.24988.24670.24402.24135.23884.23665.23447.23257.23071.22896.22751.22611.22472.22345.22248.22152.22057.21962.21903.21846.21791.21736.21681.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:20 B&WNUCLEARTECHNOLOGZES NON-PROPRZETARY**

32-1235127-01 TABLE6.3,53FSTEPUP,P~2400PSZS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-7254.5-2602.91924.95376.56556.37759.18874.09593.910334.11027.11544.12066.12554.12950.13338.13705.14019.14316.14605.14855.15091.15324.15523.15716.15906.16065.16222.16377.16510.16643.16734.16781.16832.16912.16995.17065.17121.17175'7229.17276.17306.17337.17368.17400.17777.18168.18544.18905.19251.SY5009.84374.64204.65068.26184.47297.48404'9179.89966.410731.11319.11914.12486.12961.13433.13885.14279.14658.15025.15349.15656.15955.16217.16466.16711.16919.17123'7319.17481.17644.17833.18028.18220.18347.18471.18589.18691.18790.18889.18981.19056.19132.19207.19282'8956.18611.18281.17966.17668.SZ55366.51513.47681.43963.42672.41314.40030.39507.38957.38443.38279.38091.37914.37923.37897.37877.37966.38007.38058.38169.38238.38318.38420.38500.38585.38668.38744.38815.38881.38946.38994.39048.39101.39119.39134.39167.39173~39175.39176.39177.39158.39139.39119.39099.39055.39009.38962.38915.38867.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:21 BOWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 TABLE6.4,STEADYSTATE,Tref70F,Tunif653F,P=2400PSIAS0.00000E+00 0.119590.239180.358760.478350.597940~717530.837110.956701.07631.19591.31551.43511.55461.67421.7938l.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354~9031'.0227 5.14235.26195.38145.50105.62065.7402SX-8203.5-2489.23016.77124.08389.69630.610730.11367.12002.12576.12950.13321.13659.13895.14127.14342.14499.14653.14797.14906.15014.15116.15196.15275.15351.15411.15471.15531.15582.15632.15649.15633.15620.15646.15675.15693.15708.15724.15739.15751.15759.15767~15776.15785.16120.16469.16804.17126.17434.SY7687.16501.05884.86653.77928.79155.610311.11033.11745.12410.12859.13306.13723.14028.14332.14617.14837.15055'5260.15424.15585.15737.15861.15983.16099.16195.16289.16379.16451.16524,16627.16743.16857.16924.16989.17048.17106.17164.17221.17276.17327.17377.17428'7478.17179.16864.16563.16275.16001.SZ72516.66004.59778.54082.51714.49332.47103.45809.44517.43322.42543.41766.41049.40544.40042.39574.39228.38882.38558.38308.38058.37821.37634.37446.37266.37121.36975.36833.36717.36600.36483.36387.36292.36193.36094.36012.35931.35851.35772.35699.35631.35565.35498.35432.35372.35312.35253.35193.35134.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:22 B&WNUCLEARTECHNOLOGIES NON-PROPRIETARY**

32-1235127-01 TABLE6.5,COOLDOWN, Psat=1028 PSIAS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381~91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434'6394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-4251.9-949.122183.54457.55075.95642.06110.76333.86537.56703.06763'6815.36851.06834.56816.96791.26737.16688.06633.16563.86500.66433.46361.26293.06222.36153.76085.96019.05957.75895.35825.55749.15673.45623.65575.35523.15481.35441.55402.05364.65338.65313.05287.85263.05363.85470.85573.35671.35764.8SY5658.24628.93925.54126.64801.85420.15958.36232.96488.46707.96802.56889.76958.56965.96972.46968.36931.06898.16857.66799.76746.86688.86624.26562.56497.96434.86372.36309.86250.46190.66147.26114.06079.56040.66001.65960.25932.05906.15880.05856.35846.35835.95825.35814.45707.65596.85490.35388.15290.2SZ45637.40460.35641.31472.29573.27713.26003.24848.23716.22680.21877.21094.20370.19760.19173.18620.18130.17668.17222.16818.16438.16067.15731.15411.15095.14816.14542,14276.14041.13807.13586.13386.13186.13011.12839.12674.12536.12403.12271.12149.12059.11969.11879.11791.11743.11699.11655.11612.11569.PreparedReviewedBy:A.M.MillerBy:H.T.HarrisonDate:295Date:295Page:23 B&WNUCLEARTECHNOLOGIES

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32-1235127-01 TABLE6.6,ENDOFCOOLDOWN, P~OPSIS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-519.07129.63701.441078.81148.31181.91182.21146.21094'1031.4954.61871.24785.65694.22602.49510.30415.58324.91233.00141.5754.659-33.564-117.81-199.13-281.30-356.35-430.77-504.36-570.83-637.84-699.27-754.44-810.04-858.93-907.49-955.43-994.11-1031.2-1068.3-1102.5-1125.9-1149.3-1172.6-1195.7-1229.8-1263.7"1296.6-1328.4-1359.1SY2077.71580.41144.8988.461099.81183.71219.91190.41150.61098.61021.0938.62852'8754.86657.42558.39454.90355.00253.68152.2055.383-42.486-136.32-226.71-317.58-400.69-482.67-563.15-635.20-707'0-777.36-843.39-909.32-963.51-1016.9-1070.3-1112.6-1153.1-1193.7-123103-1256.9-1282.6-1308.5-1334.6-1317.7-1298.4-1280.5-1263.8-1248.4SZ12153.10004.8066.56563.85865.25204.24606.34128.03668.53253.82882.42526.72198.21888.01595.41317.91048.9800.61558'6323'1106.80-107'4-310.33-501.66-691.53"864.00-1032.2-1196.1-1343.4-1490.0-1626.1-1752.9-1879.0-1984.9-2088.8-2193.2-2276.2-2355.1-2433.4-2506.0-2555.8-2605.1-2653'-2702.2-2720.1-2735.3-2750.1-2764.5-2778.6PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Page:24 B&WNUCLEARTECHNOLOGZES

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32-1235127-01 TABLE6.7,STEADYSTATETunifTref653,P=2250PSIS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.7938l.91342.03302.15262.27222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-7698.3-2331.22839.06694.97882.49046.210077.10674.11270.11807.12157.12503.12820.13039.13255.13455.13600.13743.13877.13977.14077.14172.14245.14318.14388.14443.14498.14552.14599.14645.14660.14644.14631.14654.14681.14697.14710.14724.14738.14749.14755.14762.14770.14778.15092.15418'5732'6033.16321.SY7242'6121.45535.26252.47449.38600.79684.910362.11029.11652.12072.12490.12880.13164.13448.13713.13918.14121.14311.14463.14612.14753'4868.14981.15088.15177.15264.15347.15413.15480.15576.15683.15789.15851.15911.15965.16019.16072..16125.16176.16223.16270.16317.16364.16084.15788.15506.15237.14980.SZ68183.62041.56169.50803.48572.46328.44230.43011.41793.40667.39932.39199.38521.38043.37567.37125.36795.36467.36159.35920.35683.35457.35278.35099.34927.34788.34649.34513.34401.34289.34177.34085.33993.33898.33804.33725.33648.33572.33496.33426.33362.33299.33235.33173.33116.33060.33004.32948.32892.PreparedReviewedBy:A.M.MillerBy:H.T.HarrisonDate:295Date:295Page:25 B&WNUCLEARTECHNOLOGIES

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32-1235127-01 TABLE6.8,LOSSOFSECONDARY

PRESSURE, P=200PSIS0.00000E+00 0.119590.239180.358760.478350.597940.717530.837110.956701.07631.19591.31551.43511.55461.67421.79381.91342.03302.15262'7222.39182.51132.63092.75052.87012.98973.10933.22893.34853.46803.58763.70723.82683.94644.06604.18564.30524.42474.54434.66394.78354.90315.02275.14235.26195.38145.50105.62065.7402SX-5205.0587.395836.89361.39958.310290.10363.10092.9703.69218.78598.47929.17239.16491.25747.05000.94228.63502.82767.62036.51355.7663.808.7152-616.39-1248.7-1812.4-2368.7-2915.8-3393.9-3876.5-4314.1-4701.6-5092.1-5422.5-5749.9-6073.0-6325.6-6566.3-6806.8-7026.7-7172.2-7316.9-7460.9-7604.2-7816.6-8028.3-8233.2-8431.3-8622:6SY15781.12266.9310.98486.69430.210146.10524.10362.10107.9732'9133.38489.47802.17019.96235.65437.84599.93801.62992.42182.81422.8654.06-76.898-773.97-1474.9-2101.0-2715.4-3315~1-3835.6-4359.0-4853.0-5312.7-5771.4-6135.3-6492.4-6849.9-7122.2'-7380.6-7639.3-7877.5-8031.6-8186.8-8343'-8500.8-8385.2-8254.9-8132.8-8019.2-7913.9SZ98478.82490.68060.56501.50752.45286.40344.36430.32662.29217.26146.23197.20462.17888.15461.13164.10941.8912.16934.65031.03296.11579.5-22.322-1522.1-3010.1-4329.8-5611.0-6851.7"7933.1-9009.0-9994.7-10897.-11795.-12524.-13236.-13951~-14503.-15023.-15539.-16014.-16330.-16643."16952.-17257."17369.-17463.-17554.-17643.-17729.PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:26 llmml5lmlllll illlmmllm~<

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    • BWNTNON"PROPRIETARY**

32"1235127-01 "Intensionally LeftBlank-ContainsBWNTProprietary Information" Figure6.2,StressPathforFlawPlanePreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~295Date:295Page:28 B&WNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 m-eI--oggSgZ>r~Q-IIcnl-cu0cnujm 0-j'I-I-Q~~Z~gZOe~OI-DR<00 40oQ.Q.cONI-Q.ZZ ZO0KOCS~~Q~ann/OOOOs~)sr~+QBU.lLILLU 00Oa0)HecO40WOX0COPFigure6.3,EndofHeatupStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:29 BOWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 v)l-ol0v)ulcl+l-ZO(yj~OI-Z

<0040oCLO.SNl-O.ZZ ZulOOKOCS~~Q+u)u)u)0v-gOO(5PIlIIIZ)Bu.u.u.uj NOXO-NOOI-Ng)gHecogcOCQG.IOCLul8Figure6',53'FStep-down Stresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:25Date:295Page:30 BOWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 COgeP)Z<cOQ.ggZOg)9QI-D><QQ COSQ.Q.V)NI-Q.ZZ OOx0CS~~.QvOOOOspssagOaU)aeiO'VcvPi55cv000'igure6.5,53'FStep-upStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:31 B&WNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 ZO"90I->K<00 c(0v-Q.o.cOU)I-0 zztllCIQKOO+eee0rIOOO<IfIIIPNMCOn40OIHeiO40WOXnnFigure6.6,SteadyState653'F(Tref70'F)Stresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Page:32 BEcWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01

~X~f-%O~<~~i~CfCfZO"BOf-OR<00

<0a.a.rnrnf=a.aa OOOCI~~.Q'nnngv-gOOCjPIfIIlgMV)NOaNHOh4PtA5OCOQ.COOlC)E50.z0900OFigure6.7,CooldownStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:33 BOWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 g~PAZ~~t-~>+IICZP-Q.Q.V) gP0.ZZzOOKOnu?u?u?OK~IOOO)~sang)-U.U.U.Ul NOXO-NO0-N(OMCOO~0MHC44OooXcvOV)CDIZ090O0OeFigure6.8,EndofCooldownStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:34 BOWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 Z0~90gg><OQ COSQ.O.V)Nl-fLZZ ZLllOOKOO~~.g5gOOQaI~II~PNMaO40MHC5Oo8rgge959Figure6.9,SteadyState653'F(Tref=Tunif)Stresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:~295Date:295Page:35 BOWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01

<X"Rogg90PD><00

<0O.O.COCOI-O.aa ZLUClOKO~IAIALOQ~gOOO)~aISgN0-rCOaOHcvOCOCL8ICLUJKDCOCOLCjKC0R0OLljCO0COCO0Figure6.10,LossofSecondary PressureStresses(psi)PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:36 BEcWNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01 7.0ANSYS5.0AVerification TheANSYSanalysiscode,version5.0A,wasverifiedusingclosedformsolutions forhoopstressinasphereandstressconcentration factors.Thefollowing comparison offiniteelement(FE)stressresultsandclosedformsolutions indicated thatthesoftwareprovidedaccurateresults.Therefore, ANSYSBOAwasverifiedforthisapplication.

FiniteElementResultsfromTable6.7,Pressure2250psiaDistanceHooStressSz0.04.30526818333648HoopStressRef.[5,Table28case3a.]e~pr/2te=2250(120.5)/[2(4.094)]~33,112psiComparedto33,648psi(FE),h%=(33648/33112

-1)(100%)1.6%StressConcentration atHoleSCF=a,,/a,,>>68183/33648 2.026(FE)Comparedto2(fromSectionA3.3),h%(2.026/2-1)(100%)1.3%PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Page:37 B&WNUCLEARTECHNOLOGIES

    • BWNTNON-PROPRIETARY**

32-1235127-01

8.0 References

1)ASMEBoilerandPressureVesselCode,SectionIII,Division1,Appendices, 1986EditionwithnoAddenda.2)BWNSDocumentNo.51-1155656-00, "Standard Correlations forNaturalConvection".

"BWNTProprietary Document."

3)BWNSDocumentNo.NPGD-TM-500, "NPGDMaterialProperties ProgramUser'sManual",Rev.D,March,1985."BWNTProprietary Document."

4)Notused.5)Young,W.C.,"Roark'sFormulasforStress&Strain",6thEditionMcGraw-Hill, NewYork,1989.6)DeSalvo,G.J.andGorman,R.W.,"ANSYSUser'sManualforRevision5.0",1992,SwansonAnalysisSystems,Houston,Pennsylvania.

7)BWNTDocument32-1235128-00, "FMAnalysisofSt.LuciePressurizer Instrument Nozzles".

"BWNTProprietary Document."

8)BWNTDocument38-1210588-00, "Pressurizer Instrument Nozzles,FMDesignInput,"forSt.LucieUnit2,dated11/11/94(FP&LNumberJPN-PSLP-94-631, File:PSL-100-14).

9)'FloridaPower&LightDrawingNo.2998-19321, Rev.0,"TopHeadInstrument NozzlesRepair".10)'FloridaPower&LightDrawingNo.2998-18709, Rev.1,"Pressurizer GeneralArrangement".

  • References markedwithan"asterisk" areretrievable fromtheUtilities RecordSystem.uthorized Pro'ectManager's Signature PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:38 BOWNUCLEARTECHNOLOGIES
    • BWNTNON-PROPRIETARY**

32-1235127-01

9.0 Microfiche

Microfiche arenotincludedinthisdocumentbecausetheycontainmathmodelwhichisBWNTProprietary.

However,forcompleteness thelistingofthecomputerrunsascontained inRev.0ofthedocument("BWNTProprietary"

)aregivenbelow.FILENAMETHERMAL.OUTSTRESS.OUTLPTHERM.OUTLPSTRESS.OUT STEADYST.OUT ENDCD.OUT DESCRIPTION Composite transient thermalrunsincluding 100'F/hrHeatup,53'FStep-down, 53'FStep-upand200'F/hrCooldownStressrunsforthecomposite transient in"THERMAL.OUT" LossofpressurethermalrunStressrunfortheLossofPressuretransient Steadystatestresses(TrefTunif653'F)Stressrunfortheendofthe200'F/hrCooldown.

PreparedBy:A.M.MillerReviewedBy:H.T.HarrisonDate:295Date:295Page:39

',lt8A00

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