ML17320B075: Difference between revisions
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
||
Line 17: | Line 17: | ||
=Text= | =Text= | ||
{{#Wiki_filter:Table2.1O.C.CookUnit2l.OCA/ | {{#Wiki_filter:Table2.1O.C.CookUnit2l.OCA/ECCS AnalysisSu@naryResultsfortheCcle5CoreConfiuration85$ENCFuelPeakRodAverage8urnup(HMD/kg)FTQTPeakCladdingTemperature (oF)MaximumLocalEr-H20Reaction(5)TotalZr-H20Reaction2.02.041.41521987.4<1.010.02.041.41521907.3<1.047.02.041.415'20965.7(1.0:g4OS2eO29 GSOOOSfb"" | ||
~~i-1p'llL'i1 Table3.21. | 'g@40521'",<<,", | ||
Table3.41.0DECLGBreakFuelResponseResultsforCycle5PeakRodAverageBurnup(NMD/kg)InitialPeakFuelAverageTemperature(oF)HotRodBurst~Time(sec)~Elevation(ft)~ChannelBlockageFractionPeakCladTemperature~Time(sec)~Elevation(ft)~Temperature(oF)Zr-SteamReaction~LocalMaximumElevation(ft)~LocalMaximum(g)*~CoreMaximum2.0215160.96.50.242278.6321988.637.4<1.010.0206061.76.50.272278.6321903.637.3<1.047.0162967.97.00.472418.8820968.885.7<1.0*Values400secintoLOCAtransient. | '",.),,pgp'PDGCK,,pGp'..',:p~ | ||
iFQ~2-0IiF~1.<150RePNQO/KGPCTHODE(HOOE14ATI.CtFT.lt-RLN'THEOHOOE(HOOE5ATC.$0FT-)IClClgQ,~d44.0e0.0Lt0.01400t000t)00tt04TIHE-SE'CONDS%0.0)Cl.~Fiqure3. | ~~i-1p'llL'i1 Table3.21.0DECLGBreakAnalysisParameters PeakRodAverageBurnup(HID/kg)TotalCorePower(NMt)*TotalPeaking(F~)TFractionEnergyDeposited inFuel~FullyModerated Core~VoidedCore2.034112.040.9740.95410.034112.040.9740.95447.034112.040.9740.954Ccle585%ENCFuel)Peaking~AxialxEngineering | ||
>FW2.04oFOWl.<150Ro10HNOIK1..PCTNHKfNODE19ATa.etFT.)t-RLPTllKDt400E(HATE0AT0.$0FT.)i0.0e0.41t0.0140.0'O0.0t40.0TINE-SECONDStl0.4KJt.0~-~Figure3. | ~EnthalpyRise(F~H)T1.4421.4151.4421.415l.4421.415*2%poweruncertainty isaddedtothisvalueintheLOCAanalysis. | ||
kGXZQK:(Continued)b. | Table3.41.0DECLGBreakFuelResponseResultsforCycle5PeakRodAverageBurnup(NMD/kg)InitialPeakFuelAverageTemperature (oF)HotRodBurst~Time(sec)~Elevation (ft)~ChannelBlockageFractionPeakCladTemperature | ||
~~ | ~Time(sec)~Elevation (ft)~Temperature (oF)Zr-SteamReaction~LocalMaximumElevation (ft)~LocalMaximum(g)*~CoreMaximum2.0215160.96.50.242278.6321988.637.4<1.010.0206061.76.50.272278.6321903.637.3<1.047.0162967.97.00.472418.8820968.885.7<1.0*Values400secintoLOCAtransient. | ||
~~3634XCL,CD32' | iFQ~2-0IiF~1.<150RePNQO/KGPCTHODE(HOOE14ATI.CtFT.lt-RLN'THEOHOOE(HOOE5ATC.$0FT-)IClClgQ,~d44.0e0.0Lt0.01400t000t)00tt04TIHE-SE'CONDS%0.0)Cl.~Fiqure3.41TOODEE2CladdingTemperature versusTime,1.0DECLGBreak,2.MWD/KgCase iFQ~R,.04iFOH~1'15DRi 17HW/K1.PCTHODEtNOK1$ATl.lfFT.)t.MTQKt)NSEtHOOEu.AT1.00FT)44.0t0.0tt0.0iC0.05$.0t.td0TIHE'SECONDSS0.0050Xb.~ci~nr~l4RTOODEE2CladdinoTemperature versusTime,1.0DECLGBreak,47.MWD/KgCase | ||
Thecurvesarebasedonanuclearenthalpyrisehotchannelfactor,p,ori. | >FW2.04oFOWl.<150Ro10HNOIK1..PCTNHKfNODE19ATa.etFT.)t-RLPTllKDt400E(HATE0AT0.$0FT.)i0.0e0.41t0.0140.0'O0.0t40.0TINE-SECONDStl0.4KJt.0~-~Figure3.42TOODEE2CladdingTemperature versusTime,1.0DECLGSreak,10.NWD/KgCase Mr.Haro1dR.Den<<4AEP:NRC:0860KATTACHMENT 2PROPOSEDREVISIONTOTECHNICAL SPECIFICATION PAGES CSFLORATEANDNUCEARENTYE00ERATIO3.2.3Thecombination ofindicated ReactorCoolantSystem(RCS)totalflowrateandRshallbemaintained withintheregionofallowable operation shownonFigures3.2-4and3.2-5for4and3loopoperation, respectively. | ||
For:Westinghouse FuelNAHR-"-f1.48[1.0+0.2(1.0-P)]for:ExxonNuclearCompanyFuelNWWWWO~WW&W&W&WWW WWWWWOWWWWR=1.49[1.0+0.2(1.0-P)]And,F<H51.36/PforExxonNuclearCompanyFuelNwhere:RATEDTHERMALPOWERandFAHN=measuredvaluesofF<obtainedbyusingthemovableNincoredetectors toob$ainapowerdistribution map.ThemeasuredvaluesofF~andflow,withoutadditonal uncertainty allowance, shallbeusedtocomparewithlimits.fZZLIQAPXJJX'QXXQK MODE1.NWithFAHabovetheallowable limitorwiththecombination ofRCStotalflowrateandRoutsidetheregionofacceptable operation shownonFigure3.2-4or3.2-5(asapplicable): | |||
2HEATLOTCTOThelimitsonheatfluxhotchannelfactor,RCSflowrate,andnuclear,enthalpyrisehotchannelfactorensurethat1)thedesignlimitsonpeaklocalpowerdensityandminimumDNBRarenotexceededand2)$ | a~Within2hours:l.EitherrestoreFAandthecombination ofRCStotalflowNrateandRtowithPntheabovelimits,or2.ReduceTHERMALPOWERtolessthan50$ofRATEDTHERMALPOWERandreducethePowerRangeNeutronFlux-HightripsetpointtoJ55$ofRATEDTHERMALPOWERwithinthenext4hours.D.C,COOK-UNIT23/42-9AMENDMENT NO. | ||
RISER-(Continued)F~reB3/42- | kGXZQK:(Continued) b.Within24hoursofinitially beingoutsidetheabovelimits,verifythroughincorefluxmapp1ngandRCStotalflowratecompar1aon thatF$Eandthecomhinatlon ofRandROEtotalflowratearerestored%owithintheabovelimits,orreduceTHERMALPOWERtolessthan5$ofRATEDTHERMALPOWERwithinthenext2hours.c~Identifyandcorrectthecauseoftheout-of'-limit condition priortoincreasing THERMALPOWERabovethereducedTHERMALPOWERLimitrequiredbyACTIONitemsa.2and/orbabove;subsequent POWEROPERATION mayproceedprovfdedthatF)andthecombination ofRandindicated RCStotalflowratearedemonstrated, throughincorefluxmappingandRCStotalflowratecomparison, tobewithinthereg1onofacceptable operation asdefinedaboveforF"andasshownonFigure3.2-4or3.2-5(asapplicable) forRCSflowrateandRpriortoexceed1ng thefollowing THERMALPOWERlevels:1.Anominal501ofRATEDTHERMALPOWER,2.Anominal75$ofRATEDTHERMALPOWER,and3.Within24hoursofattaining g954ofRATEDTHERMALPOWER.4.2.3.1Theprovisions ofSpecif1cation 4.0.4arenotapplicable. | ||
0&&1.65&~&'.4~~-~~1.55&Opium+~~~&~I.35020406080PERCENTOFRATEDTHERMALPOWER100FIGUREB3/42- | N'.2.3.2F<Hshallbedetermined tobewithintheabovelimitsandthecombination ofindicated RCStotalflowrateandRshallbedetermined tobewithintheregionofacceptable operation ofFigure3.2-4or3.2-5(asapplicable): | ||
a.Priortooperat1on above75$ofRATEDTHERMALPOWERaftereachfuelloading,andb.Atleastonceper31Effective FullPowerDays.4.2.3.3TheRCStotalflowrateindicators shallbesub)ected toaCHANNELCALIBRATION atleastonceper18months.4.2.3.4TheRCStotalflowrateshallbedetermined bymeasurement atleastonceper18months.D.C.COOK-UNIT23/42-10AMENDMENT NO. | |||
~~4846eMeasurement Uncertainties of3.5%forFlo~and4%FJHareaccounted forintheanalysiswhichsupportsthisFigure.4442C)440[ACCEPTABLE OPERATION REGION~~~=-=--=-'=-:-UNACCEPTABLE OPERATION REGION(0.3=,:i. | |||
77).340.900.940.981.021.06R*F~NH/1. | |||
48[1.0+0. | |||
2(l.0-P)lWESTINGHOUSE FUELR*FNH/1.49{1.0 0.2(1.0-P)] | |||
EXXONNUCLEARCO.FUEFIGURE3.24RCSTOTALFlO'NRATEVERSUSRFOURLOOP5INOPERATION a~a<0.C.COOKUNIT23/42-11Amendment No.~~ | |||
~~3634XCL,CD32'Htasureaent Unclrtalnt)es: | |||
.'of3.5%forFlowandi%..<orFareaccounted for.:intheanalysiswhich,supportsthisFigure.0~~A~ACCEPTAgLE OPERATION REGION~~~Ktshouldbenotedthatthreeloooooerat'on usingthiscurseisnotcurrenlyallowedNechangescontained inthistableareforReference only.~Ii~~~~C730IC)28(~UNACCEPTAgLE | |||
~OPERAT'ON | |||
~'"IGt'~','..0,27.13) | |||
Z6=::.(0.971,26.'.=.) | |||
240.900.940.981.021.061.1014R<F"H/l.48{1.0+0.2(1.0-P)]MESNGHOUSEFUELR*F"H/1.49{1.0+0.2(I.O-P) | |||
]EXXONNUCLEARCO.FUELFIGURE3.2-5RCSTOTALFLOQRATEVERSUSR-THREELOOPSINOPERATION 0.C.COOKUNIT23/42-12Apgn4nent No. | |||
Thecurvesarebasedonanuclearenthalpyrisehotchannelfactor,p,ori.49andareference cosinewithapeakoft.55i'oraxialpowershape.Anallowance isincludedforanincreaseinF<HatreducedpowerbasedAH'ntheexpression: | |||
F>H-1.48[1+0.2(1-P)](Westinghouse Fuel)F<H=1.49[1+0.2(1-P)](ExxonNuclearCompanyFuel)NwherePisthefractionofRATEDTHERMALPOWER.Theselimitingheatfluxconditions arehigherthanthosecalculated fortherangeofallcontrolrodsfullywithdrawn tothemaximumallowable oontrolrodinsertion assumingtheaxialpowerimbalance iswithinthelimitsofthef(AI)functionoftheOvertemperature trip.Whentheaxialpowerimbalance iknotwithinthetolerance, theaxialpowerimbalance effectontheOvertemperature ATtripswillreducethesetpoints toprovideproteotion consistent withcoresafetylimits.ForExxonNuclearCompanysuppliedfuel,anadditional limitation onF<isappliedtoensurecompliance withECCSacceptance criteria. | |||
Thislimitation isdiscussed inbasissection3/4.2.2and3/4.2.3anddoesnotaffectthesafetylimitcurve.2.1.20CTherestriction ofthisSafetyLimitprotectstheintegrity oftheReactorCoolantSystemfromoverpressurization andtherebypreventsthereleaseofradionuclides contained inthereactorcoolantfromreachingthecontainment atmosphere. | |||
Thereactorpressurevesselandpressurizer aredesignedtoSectionIIIoftheASMECodeforNuclearPowerPlantwhichpermitsamaximumtransient pressureof110$(2735psig)ofdesignpressure. | |||
TheReactorCoolantSystempiping,valvesandfittings, aredesignedtoANSIB31.11967Edition,whichpermitsamaximumtransient pressureof120%(2985psig)ofcomponent designpressure. | |||
TheSafetyLimitof2735psigistherefore consistent withthedesigncriteriaandassociated coderequirements. | |||
TheentireReactorCoolantSystemishydrotested at3107psig,125$of'designpressure, todemonstrate integrity priortoinitialoperation. | |||
D.C.COOK-UNIT2B2-2AMENDMENT NO. | |||
Thespecifications of'hissectionprovideassurance offuelintegrity duringCondition I(NormalOperation) andII(Incidents ofModerateFrequency) eventsby:(a)maintaining thecalculated DNBRinthecoreatorabovedesignduringnormaloperation andinshorttermtransients, and(b)limitingthefissiongasrelease,fuelpellettemperature andoladd1ngmechan1cal properties towithinassumeddesigncriteria. | |||
Inadd1tion, limitingthepeaklinearpowerdensitydur1ngCondition Ieventsprovidesassurance thattheinitialcond1t1ons assumedf'rtheLOCAanalysesaremetandtheECCSacceptance criterialimitof2200Fisnotexceeded. | |||
Thedefinitions ofcertainhotohannelandpeakingfactorsasusedinthesespecifications areasfollows:F(Z)HeatFluxHotChannelFactor,isdefinedasthemaximumlocalheatfluxonthesurfaceof'fuelrodatcoreelevation Zdividedbytheaveragefuelrodheatflux,allowingformanufacturing tolerances onfuelpelletsandrods.NFAHNuclearEnthalpyRiseHotChannelFaotor,isdefinedastheratiooftheintegraloflinearpoweralongtherodwiththehighestintegrated powertotheaveragerodpower.NThelimitsonF(Z)andF<forWestinghouse suppliedfuelatacore-averagepowerof3431MWtare1.$7and1.48,respectively, whichassureconsistency withtheallowable heatgeneration ratesdeveloped foracoreaveragethermalpowerof3391MWt.ThelimitsonF(Z)andF".forENCsuppliedfuelhavebeenestablished forgcorethermalpoweroP3411MWt.ThelimitonF(Z)is2.04.ThelimitonF>is1.36forLOCA/ECCS analysisand1.49forDIIBanalyses. | |||
Theanalysessupporting theExxonNuclearCompanylimitsarevalidforanaveragesteamgenerator tubepluggingofupto5$andamax1mumpluggingofoneormoresteamgenerators ofupto10$.Inestablishing thelimits,aplantsystemdescription withimprovedaccuracywasemployedduringtherefloodportionoftheLOCATransient. | |||
WithrespecttotheWestinghouse suppliedfueltheminimumproJected excessmarginofatleast10$toECCSlimitswillmorethanoffsettheimpactofincreasesteamgenerator tubeplugging. | |||
ThelimitsonAXIALFLUXDIFFERENCE assurethattheF(Z)upperboundenvelopeisnotexceededduringeithernormaloperation oFintheeventofxenonredistribution following powerchanges.TheF(Z)upperboundenvelopeis1.97timestheaveragefuelrodheatfluxforWeslinghouse suppl1edfueland2.04t1mestheaveragefuelrodheatfluxforExxonNuclearCompanysuppliedfuel.Targetfluxdifference isdetermined atequilibrium xenonconditions. | |||
Thefulllengthrodsmaybepositioned withinthecoreinaccordance withtheirrespective insertion limitsandshouldbeinsertednearthe1rnormalposit1onforsteadystateoperation athighpowerlevels.ThevalueoftheD.C.COOK-UNIT2B3/42-1AMENDMENT NO. | |||
2HEATLOTCTOThelimitsonheatfluxhotchannelfactor,RCSflowrate, andnuclear,enthalpyrisehotchannelfactorensurethat1)thedesignlimitsonpeaklocalpowerdensityandminimumDNBRarenotexceededand2)$ntheeventofaLOCAthepeakfuelcladtemperature willnotexceedthe2200FECCSacceptance criterialimit.Eachoftheseismeasurable butwillnormallyonlybedetermined periodically asspecified inSpecifications 0.2.2and4.2.3.Thisperiodicsurveillanoe issufficient toensurethatthelimitsaremaintained provided: | |||
a.Controlrodsinasinglegroupmovetogetherwithnoindividual rodinsertion differing bymorethan+12stepsfromthegroupdemandposition. | |||
b.Controlrodgroupsaresequenced withoverlapping groupsasdescribed inSpecification 3.1.3.6.c.Thecontrolrodinsertion limitsofSpecifications 3.1.3.5and3.1.3.6aremaintained. | |||
d.Anditionallimitation onF<appliestoExxonNuolearCompanyfuel.NThisF<Hlimit,incombination witktheF~(Z)limit,ensurescompliance withtheECCSacceptance criteria. | |||
Anallowance isincludedforanincreaseinF<Hatreducedpowerbasedonthefollowing expression: | |||
NTheaxialpowerdistribution, expressed intermsofAXIALFLUXDIFFERENCE, ismaintained withinthelimits,NF<Hwillbemaintained withinitslimitsprovidedoonditions a.throughd.abovearemaintained. | |||
AsnotedonFigures3.2-4and3.2-5,RCSflowrateandF<maybe"tradedoff"againstoneanother(i.e.,alowmeasuredRCSflowra@isacceptable ifthemeasuredF<isalsolow)toensurethatthecalculated DNBRwillnotbebelowthebesign DNBRvalue.Therelaxation ofF<HasafunctionofTHERMALPOWERallowschangesintheradialpowershapeforallpermissible rodinsertion limits.Theformofthisrelaxation forDNBRlimitsisdiscussed inSection2.1.1ofthebasis.F<Ng1.36/P(ExxonNuclearCompanyFuel)where:PisthefractionofRATEDTHERMALPOWER.Thepowerdependence ofthisallowance is1/Pbecausetheassooiated F<Hlimitof136resultsfromtheLOCAanalysis. | |||
Themorerestrictive oftheflowdependent DNBRF<HlimitandtheLOCANF~limitforExxonNuclearFuelCompanyfuelmustbeapplied.D.C.COOK-UNIT2B3H2-4AMENDMENT NO. | |||
RISER-(Continued) | |||
F~reB3/42-2illustrates theimplementat1on ofthelimitsasafnctioofpower.AmeasuredflowwillresultinalimitingvalueforRwhichmustbeobtainedfromFigure3.2-4orFigure3.2<<5.FromthislimitingR,alimitingF<Hcanbeobtainedbecause:Westinghouse FuelF>H=1.48XRX[1.0+0.2(1.0-P)3, ExxonNuclearCompanyFuelFAH=1.49XRX[1.0+0.2(1.0-P)] | |||
Where:PTHERMALPOWERRATEDTHERMALPOWERFigureB3/42-2displaystwolimitiggDNBRFcurvesfearExxonNuclearNCompanyfuelforflowsof36.77X10cpm,an37.63X10gpm.Alsodisplayed onFigureB3/42-2isthelimitoqF<HwhichresultsfromtheLOCAanalys1si'orExxonNuclearCompanyfueQpmustbemaintaiyd belowandtotheleftofboththeapplicable DNBRF<HlmIItandtheLOCAF<Hlimit.ForWestinghouse fuelthere1sonlyoneglimit.Itrustbeobtained-Nfromtheapplicable relationships amongR,F<H,P,andflow.WhenanFmeasurement istaken,bothexperimental errorandmanufacturing tolerance mustbeallowedfore5gistheappropriate allowance forafullcoremaptakenwiththeincoredetectorfluxmappingsystemand3$istheappropriate allowance formanufactur1ng tolerance. | |||
WhenRCSflowrateandF<aremeasured, noadditional allowances. | |||
areNnecessary priortocomparison 4ththelimitsofSpecif1cat1on 3.2.3.Measurement errorsof3.5$forRCSflowtotalflowrateand4$forFN<Hhavebeenallowedforindetermination ofthedesignDNBRvalueandinthedeterm1nation oftheLOCA/ECCS limit.D.C.COOK-UNIT2B3/42-4aAMENDMENT NO. | |||
0&&1.65&~&'.4~~-~~1.55&Opium+~~~&~I.35020406080PERCENTOFRATEDTHERMALPOWER100FIGUREB3/42-2ILLUSTRATIVE EXAMPLEOFF~HLIMITVERSUSPERCENTTHERMALPOWERFOREXXONFUELB3/42-4b}} |
Revision as of 09:48, 29 June 2018
ML17320B075 | |
Person / Time | |
---|---|
Site: | Cook ![]() |
Issue date: | 05/21/1984 |
From: | INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
To: | |
Shared Package | |
ML17320B074 | List: |
References | |
NUDOCS 8405290296 | |
Download: ML17320B075 (17) | |
Text
Table2.1O.C.CookUnit2l.OCA/ECCS AnalysisSu@naryResultsfortheCcle5CoreConfiuration85$ENCFuelPeakRodAverage8urnup(HMD/kg)FTQTPeakCladdingTemperature (oF)MaximumLocalEr-H20Reaction(5)TotalZr-H20Reaction2.02.041.41521987.4<1.010.02.041.41521907.3<1.047.02.041.415'20965.7(1.0:g4OS2eO29 GSOOOSfb""
'g@40521'",<<,",
'",.),,pgp'PDGCK,,pGp'..',:p~
~~i-1p'llL'i1 Table3.21.0DECLGBreakAnalysisParameters PeakRodAverageBurnup(HID/kg)TotalCorePower(NMt)*TotalPeaking(F~)TFractionEnergyDeposited inFuel~FullyModerated Core~VoidedCore2.034112.040.9740.95410.034112.040.9740.95447.034112.040.9740.954Ccle585%ENCFuel)Peaking~AxialxEngineering
~EnthalpyRise(F~H)T1.4421.4151.4421.415l.4421.415*2%poweruncertainty isaddedtothisvalueintheLOCAanalysis.
Table3.41.0DECLGBreakFuelResponseResultsforCycle5PeakRodAverageBurnup(NMD/kg)InitialPeakFuelAverageTemperature (oF)HotRodBurst~Time(sec)~Elevation (ft)~ChannelBlockageFractionPeakCladTemperature
~Time(sec)~Elevation (ft)~Temperature (oF)Zr-SteamReaction~LocalMaximumElevation (ft)~LocalMaximum(g)*~CoreMaximum2.0215160.96.50.242278.6321988.637.4<1.010.0206061.76.50.272278.6321903.637.3<1.047.0162967.97.00.472418.8820968.885.7<1.0*Values400secintoLOCAtransient.
iFQ~2-0IiF~1.<150RePNQO/KGPCTHODE(HOOE14ATI.CtFT.lt-RLN'THEOHOOE(HOOE5ATC.$0FT-)IClClgQ,~d44.0e0.0Lt0.01400t000t)00tt04TIHE-SE'CONDS%0.0)Cl.~Fiqure3.41TOODEE2CladdingTemperature versusTime,1.0DECLGBreak,2.MWD/KgCase iFQ~R,.04iFOH~1'15DRi 17HW/K1.PCTHODEtNOK1$ATl.lfFT.)t.MTQKt)NSEtHOOEu.AT1.00FT)44.0t0.0tt0.0iC0.05$.0t.td0TIHE'SECONDSS0.0050Xb.~ci~nr~l4RTOODEE2CladdinoTemperature versusTime,1.0DECLGBreak,47.MWD/KgCase
>FW2.04oFOWl.<150Ro10HNOIK1..PCTNHKfNODE19ATa.etFT.)t-RLPTllKDt400E(HATE0AT0.$0FT.)i0.0e0.41t0.0140.0'O0.0t40.0TINE-SECONDStl0.4KJt.0~-~Figure3.42TOODEE2CladdingTemperature versusTime,1.0DECLGSreak,10.NWD/KgCase Mr.Haro1dR.Den<<4AEP:NRC:0860KATTACHMENT 2PROPOSEDREVISIONTOTECHNICAL SPECIFICATION PAGES CSFLORATEANDNUCEARENTYE00ERATIO3.2.3Thecombination ofindicated ReactorCoolantSystem(RCS)totalflowrateandRshallbemaintained withintheregionofallowable operation shownonFigures3.2-4and3.2-5for4and3loopoperation, respectively.
For:Westinghouse FuelNAHR-"-f1.48[1.0+0.2(1.0-P)]for:ExxonNuclearCompanyFuelNWWWWO~WW&W&W&WWW WWWWWOWWWWR=1.49[1.0+0.2(1.0-P)]And,F<H51.36/PforExxonNuclearCompanyFuelNwhere:RATEDTHERMALPOWERandFAHN=measuredvaluesofF<obtainedbyusingthemovableNincoredetectors toob$ainapowerdistribution map.ThemeasuredvaluesofF~andflow,withoutadditonal uncertainty allowance, shallbeusedtocomparewithlimits.fZZLIQAPXJJX'QXXQK MODE1.NWithFAHabovetheallowable limitorwiththecombination ofRCStotalflowrateandRoutsidetheregionofacceptable operation shownonFigure3.2-4or3.2-5(asapplicable):
a~Within2hours:l.EitherrestoreFAandthecombination ofRCStotalflowNrateandRtowithPntheabovelimits,or2.ReduceTHERMALPOWERtolessthan50$ofRATEDTHERMALPOWERandreducethePowerRangeNeutronFlux-HightripsetpointtoJ55$ofRATEDTHERMALPOWERwithinthenext4hours.D.C,COOK-UNIT23/42-9AMENDMENT NO.
kGXZQK:(Continued) b.Within24hoursofinitially beingoutsidetheabovelimits,verifythroughincorefluxmapp1ngandRCStotalflowratecompar1aon thatF$Eandthecomhinatlon ofRandROEtotalflowratearerestored%owithintheabovelimits,orreduceTHERMALPOWERtolessthan5$ofRATEDTHERMALPOWERwithinthenext2hours.c~Identifyandcorrectthecauseoftheout-of'-limit condition priortoincreasing THERMALPOWERabovethereducedTHERMALPOWERLimitrequiredbyACTIONitemsa.2and/orbabove;subsequent POWEROPERATION mayproceedprovfdedthatF)andthecombination ofRandindicated RCStotalflowratearedemonstrated, throughincorefluxmappingandRCStotalflowratecomparison, tobewithinthereg1onofacceptable operation asdefinedaboveforF"andasshownonFigure3.2-4or3.2-5(asapplicable) forRCSflowrateandRpriortoexceed1ng thefollowing THERMALPOWERlevels:1.Anominal501ofRATEDTHERMALPOWER,2.Anominal75$ofRATEDTHERMALPOWER,and3.Within24hoursofattaining g954ofRATEDTHERMALPOWER.4.2.3.1Theprovisions ofSpecif1cation 4.0.4arenotapplicable.
N'.2.3.2F<Hshallbedetermined tobewithintheabovelimitsandthecombination ofindicated RCStotalflowrateandRshallbedetermined tobewithintheregionofacceptable operation ofFigure3.2-4or3.2-5(asapplicable):
a.Priortooperat1on above75$ofRATEDTHERMALPOWERaftereachfuelloading,andb.Atleastonceper31Effective FullPowerDays.4.2.3.3TheRCStotalflowrateindicators shallbesub)ected toaCHANNELCALIBRATION atleastonceper18months.4.2.3.4TheRCStotalflowrateshallbedetermined bymeasurement atleastonceper18months.D.C.COOK-UNIT23/42-10AMENDMENT NO.
~~4846eMeasurement Uncertainties of3.5%forFlo~and4%FJHareaccounted forintheanalysiswhichsupportsthisFigure.4442C)440[ACCEPTABLE OPERATION REGION~~~=-=--=-'=-:-UNACCEPTABLE OPERATION REGION(0.3=,:i.
77).340.900.940.981.021.06R*F~NH/1.
48[1.0+0.
2(l.0-P)lWESTINGHOUSE FUELR*FNH/1.49{1.0 0.2(1.0-P)]
EXXONNUCLEARCO.FUEFIGURE3.24RCSTOTALFlO'NRATEVERSUSRFOURLOOP5INOPERATION a~a<0.C.COOKUNIT23/42-11Amendment No.~~
~~3634XCL,CD32'Htasureaent Unclrtalnt)es:
.'of3.5%forFlowandi%..<orFareaccounted for.:intheanalysiswhich,supportsthisFigure.0~~A~ACCEPTAgLE OPERATION REGION~~~Ktshouldbenotedthatthreeloooooerat'on usingthiscurseisnotcurrenlyallowedNechangescontained inthistableareforReference only.~Ii~~~~C730IC)28(~UNACCEPTAgLE
~OPERAT'ON
~'"IGt'~','..0,27.13)
Z6=::.(0.971,26.'.=.)
240.900.940.981.021.061.1014R<F"H/l.48{1.0+0.2(1.0-P)]MESNGHOUSEFUELR*F"H/1.49{1.0+0.2(I.O-P)
]EXXONNUCLEARCO.FUELFIGURE3.2-5RCSTOTALFLOQRATEVERSUSR-THREELOOPSINOPERATION 0.C.COOKUNIT23/42-12Apgn4nent No.
Thecurvesarebasedonanuclearenthalpyrisehotchannelfactor,p,ori.49andareference cosinewithapeakoft.55i'oraxialpowershape.Anallowance isincludedforanincreaseinF<HatreducedpowerbasedAH'ntheexpression:
F>H-1.48[1+0.2(1-P)](Westinghouse Fuel)F<H=1.49[1+0.2(1-P)](ExxonNuclearCompanyFuel)NwherePisthefractionofRATEDTHERMALPOWER.Theselimitingheatfluxconditions arehigherthanthosecalculated fortherangeofallcontrolrodsfullywithdrawn tothemaximumallowable oontrolrodinsertion assumingtheaxialpowerimbalance iswithinthelimitsofthef(AI)functionoftheOvertemperature trip.Whentheaxialpowerimbalance iknotwithinthetolerance, theaxialpowerimbalance effectontheOvertemperature ATtripswillreducethesetpoints toprovideproteotion consistent withcoresafetylimits.ForExxonNuclearCompanysuppliedfuel,anadditional limitation onF<isappliedtoensurecompliance withECCSacceptance criteria.
Thislimitation isdiscussed inbasissection3/4.2.2and3/4.2.3anddoesnotaffectthesafetylimitcurve.2.1.20CTherestriction ofthisSafetyLimitprotectstheintegrity oftheReactorCoolantSystemfromoverpressurization andtherebypreventsthereleaseofradionuclides contained inthereactorcoolantfromreachingthecontainment atmosphere.
Thereactorpressurevesselandpressurizer aredesignedtoSectionIIIoftheASMECodeforNuclearPowerPlantwhichpermitsamaximumtransient pressureof110$(2735psig)ofdesignpressure.
TheReactorCoolantSystempiping,valvesandfittings, aredesignedtoANSIB31.11967Edition,whichpermitsamaximumtransient pressureof120%(2985psig)ofcomponent designpressure.
TheSafetyLimitof2735psigistherefore consistent withthedesigncriteriaandassociated coderequirements.
TheentireReactorCoolantSystemishydrotested at3107psig,125$of'designpressure, todemonstrate integrity priortoinitialoperation.
D.C.COOK-UNIT2B2-2AMENDMENT NO.
Thespecifications of'hissectionprovideassurance offuelintegrity duringCondition I(NormalOperation) andII(Incidents ofModerateFrequency) eventsby:(a)maintaining thecalculated DNBRinthecoreatorabovedesignduringnormaloperation andinshorttermtransients, and(b)limitingthefissiongasrelease,fuelpellettemperature andoladd1ngmechan1cal properties towithinassumeddesigncriteria.
Inadd1tion, limitingthepeaklinearpowerdensitydur1ngCondition Ieventsprovidesassurance thattheinitialcond1t1ons assumedf'rtheLOCAanalysesaremetandtheECCSacceptance criterialimitof2200Fisnotexceeded.
Thedefinitions ofcertainhotohannelandpeakingfactorsasusedinthesespecifications areasfollows:F(Z)HeatFluxHotChannelFactor,isdefinedasthemaximumlocalheatfluxonthesurfaceof'fuelrodatcoreelevation Zdividedbytheaveragefuelrodheatflux,allowingformanufacturing tolerances onfuelpelletsandrods.NFAHNuclearEnthalpyRiseHotChannelFaotor,isdefinedastheratiooftheintegraloflinearpoweralongtherodwiththehighestintegrated powertotheaveragerodpower.NThelimitsonF(Z)andF<forWestinghouse suppliedfuelatacore-averagepowerof3431MWtare1.$7and1.48,respectively, whichassureconsistency withtheallowable heatgeneration ratesdeveloped foracoreaveragethermalpowerof3391MWt.ThelimitsonF(Z)andF".forENCsuppliedfuelhavebeenestablished forgcorethermalpoweroP3411MWt.ThelimitonF(Z)is2.04.ThelimitonF>is1.36forLOCA/ECCS analysisand1.49forDIIBanalyses.
Theanalysessupporting theExxonNuclearCompanylimitsarevalidforanaveragesteamgenerator tubepluggingofupto5$andamax1mumpluggingofoneormoresteamgenerators ofupto10$.Inestablishing thelimits,aplantsystemdescription withimprovedaccuracywasemployedduringtherefloodportionoftheLOCATransient.
WithrespecttotheWestinghouse suppliedfueltheminimumproJected excessmarginofatleast10$toECCSlimitswillmorethanoffsettheimpactofincreasesteamgenerator tubeplugging.
ThelimitsonAXIALFLUXDIFFERENCE assurethattheF(Z)upperboundenvelopeisnotexceededduringeithernormaloperation oFintheeventofxenonredistribution following powerchanges.TheF(Z)upperboundenvelopeis1.97timestheaveragefuelrodheatfluxforWeslinghouse suppl1edfueland2.04t1mestheaveragefuelrodheatfluxforExxonNuclearCompanysuppliedfuel.Targetfluxdifference isdetermined atequilibrium xenonconditions.
Thefulllengthrodsmaybepositioned withinthecoreinaccordance withtheirrespective insertion limitsandshouldbeinsertednearthe1rnormalposit1onforsteadystateoperation athighpowerlevels.ThevalueoftheD.C.COOK-UNIT2B3/42-1AMENDMENT NO.
2HEATLOTCTOThelimitsonheatfluxhotchannelfactor,RCSflowrate, andnuclear,enthalpyrisehotchannelfactorensurethat1)thedesignlimitsonpeaklocalpowerdensityandminimumDNBRarenotexceededand2)$ntheeventofaLOCAthepeakfuelcladtemperature willnotexceedthe2200FECCSacceptance criterialimit.Eachoftheseismeasurable butwillnormallyonlybedetermined periodically asspecified inSpecifications 0.2.2and4.2.3.Thisperiodicsurveillanoe issufficient toensurethatthelimitsaremaintained provided:
a.Controlrodsinasinglegroupmovetogetherwithnoindividual rodinsertion differing bymorethan+12stepsfromthegroupdemandposition.
b.Controlrodgroupsaresequenced withoverlapping groupsasdescribed inSpecification 3.1.3.6.c.Thecontrolrodinsertion limitsofSpecifications 3.1.3.5and3.1.3.6aremaintained.
d.Anditionallimitation onF<appliestoExxonNuolearCompanyfuel.NThisF<Hlimit,incombination witktheF~(Z)limit,ensurescompliance withtheECCSacceptance criteria.
Anallowance isincludedforanincreaseinF<Hatreducedpowerbasedonthefollowing expression:
NTheaxialpowerdistribution, expressed intermsofAXIALFLUXDIFFERENCE, ismaintained withinthelimits,NF<Hwillbemaintained withinitslimitsprovidedoonditions a.throughd.abovearemaintained.
AsnotedonFigures3.2-4and3.2-5,RCSflowrateandF<maybe"tradedoff"againstoneanother(i.e.,alowmeasuredRCSflowra@isacceptable ifthemeasuredF<isalsolow)toensurethatthecalculated DNBRwillnotbebelowthebesign DNBRvalue.Therelaxation ofF<HasafunctionofTHERMALPOWERallowschangesintheradialpowershapeforallpermissible rodinsertion limits.Theformofthisrelaxation forDNBRlimitsisdiscussed inSection2.1.1ofthebasis.F<Ng1.36/P(ExxonNuclearCompanyFuel)where:PisthefractionofRATEDTHERMALPOWER.Thepowerdependence ofthisallowance is1/Pbecausetheassooiated F<Hlimitof136resultsfromtheLOCAanalysis.
Themorerestrictive oftheflowdependent DNBRF<HlimitandtheLOCANF~limitforExxonNuclearFuelCompanyfuelmustbeapplied.D.C.COOK-UNIT2B3H2-4AMENDMENT NO.
RISER-(Continued)
F~reB3/42-2illustrates theimplementat1on ofthelimitsasafnctioofpower.AmeasuredflowwillresultinalimitingvalueforRwhichmustbeobtainedfromFigure3.2-4orFigure3.2<<5.FromthislimitingR,alimitingF<Hcanbeobtainedbecause:Westinghouse FuelF>H=1.48XRX[1.0+0.2(1.0-P)3, ExxonNuclearCompanyFuelFAH=1.49XRX[1.0+0.2(1.0-P)]
Where:PTHERMALPOWERRATEDTHERMALPOWERFigureB3/42-2displaystwolimitiggDNBRFcurvesfearExxonNuclearNCompanyfuelforflowsof36.77X10cpm,an37.63X10gpm.Alsodisplayed onFigureB3/42-2isthelimitoqF<HwhichresultsfromtheLOCAanalys1si'orExxonNuclearCompanyfueQpmustbemaintaiyd belowandtotheleftofboththeapplicable DNBRF<HlmIItandtheLOCAF<Hlimit.ForWestinghouse fuelthere1sonlyoneglimit.Itrustbeobtained-Nfromtheapplicable relationships amongR,F<H,P,andflow.WhenanFmeasurement istaken,bothexperimental errorandmanufacturing tolerance mustbeallowedfore5gistheappropriate allowance forafullcoremaptakenwiththeincoredetectorfluxmappingsystemand3$istheappropriate allowance formanufactur1ng tolerance.
WhenRCSflowrateandF<aremeasured, noadditional allowances.
areNnecessary priortocomparison 4ththelimitsofSpecif1cat1on 3.2.3.Measurement errorsof3.5$forRCSflowtotalflowrateand4$forFN<Hhavebeenallowedforindetermination ofthedesignDNBRvalueandinthedeterm1nation oftheLOCA/ECCS limit.D.C.COOK-UNIT2B3/42-4aAMENDMENT NO.
0&&1.65&~&'.4~~-~~1.55&Opium+~~~&~I.35020406080PERCENTOFRATEDTHERMALPOWER100FIGUREB3/42-2ILLUSTRATIVE EXAMPLEOFF~HLIMITVERSUSPERCENTTHERMALPOWERFOREXXONFUELB3/42-4b