ML17328A819

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Rev 1 to DC Cook Nuclear Plant Unit 1 Cycle 12 Core Operating Limits Rept.
ML17328A819
Person / Time
Site: Cook American Electric Power icon.png
Issue date: 12/31/1990
From:
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
Shared Package
ML17328A820 List:
References
NUDOCS 9012260211
Download: ML17328A819 (11)


Text

DONALDC.COOKNUCLEARPLANTUNIT1CYCLE12COREOPERATING LIMITSREPORTRevision1December199090i22602ii 90i2i9P13RAGOCK050003i5P*PDR COLRforDONALDC.COOKNUCLEARPLANTUNIT1CYCLE12)1.0COREOPERATING LIMITSREPORTThisCoreOperating LimitsReportforDonaldC.CookNuclearPlantUnit1Cycle12hasbeenpreparedinaccordance withtherequirements ofTechnical Specification 6.9.1.11.

TheTechnical Specifications affectedbythisreportarelistedbelow:3/4.1.1.4 3/4.1.3.1 3/4.1.3.3 3/4.1.3.4 3/4.1.3.5 3/4.2.13/4.2.23/4.2.33/4.2.6Moderator Temperature Coefficient MovableControlAssemblies GroupHeightRodDropTimeShutdownRodInsertion LimitsControlRodInsertion LimitsAxialFluxDifference HeatFluxHotChannelFactorNuclearEnthalpyHotChannelFactorAllowable PowerLevelPage1ofll COLRforDonaldC.CookNuclearPlantUnit1Cycle122.0OPERATING LIMITSThecycle-specific parameter limitsforthespecifications listedinSection1.0arepresented inthefollowing subsections.

Theselimitshavebeendeveloped usingtheNRC-approved methodologies specified inTechnical Specification 6.9.1.11.

2.1Moderator TemeratureCoefficient (Specification 3/4.1.1.4) 2.1.1TheModerator Temperature Coefficient (MTC)Limitsare:TheBOL/ARO-MTCshallbelesspositivethanthevaluegiveninFigurel.TheEOL/ARO/RTP-MTC shallbelessnegativethan-3.35E-4Ak/k/F.ThislimitisbasedonaTprogramwithHFPTof550Favgavgwhere:AROstandsforAllRodsOutBOLstandsforBeginning ofCycleLifeEOLstandsforEndofCycleLifeRTPstandsforRatedThermalPowerHFPstandsforHotFullThermalPower2.1.2TheMTCSurveillance limitis:The300ppm/ARO/RTP-MTC shouldbelessnegativethanorequalto-2.70E-4Ak/k/'Fatavesselaverage)temperature of550F.Page2of11 COLRforDonaldC.CookNuclearPlantUnit1Cycle122.2RodDroTimeDroHeiht(Specification 3/4.1.3.3) 2.2.1Allrodsshallbedroppedfrom228steps.2.3ShutdownRodInsertion Limit(Specification 3/4.1.3.4) 2.3.1Theshutdownrodsshallbewithdrawn to228steps.2.4ControlRodInsertion Limits(Specification 3/4.1.3.5, and3/4.1.3.1) 2.4.1Thecontrolbanksshallbelimitedinphysicalinsertion asshowninFigure2.2.4.2Successive ControlBanksshalloverlapby100steps.ThesequenceforControlBankwithdrawal shallbeControlBankA,ControlBankB,ControlBankC,andControlBankD.2.5AxialFluxDifference (Specification 3/4.2.1)2.5.1TheAllowable Operation LimitsareprovidedinFigure3.2.5.2TheAXIALFLUXDIFFERENCE (AFD)targetbandduringbaseloadoperations is+3Z,-3Z(notapplicable forthiscycle).2.5.3TheAFDtargetbandis+5Z,-5Zforcoreaverageaccumulated burnup>0.0MWD/MTUPage3of11

COLRforDonaldC.CookNuclearPlantUnit1Cycle12)2.6HeatFluxHotChannelFactor-F(Z)(Specifications 3.2.2)CFQF(Z)<---*K(Z)QPforP>0.5F(Z)<2*CFQ*K(Z)forP<0.5where:PTHERMALPOWERRATEDTHERMALPOWER2.6.1CFQ2.15forWestinghouse fuel2.6.2K(Z)isprovidedinFigure4forWestinghouse fuelPage4of11 COLRforDonaldC.CookNuclearPlantUnit1Cycle122.7NuclearEnthalHotChannelFactor-F(Specification 3/4.2.3)F<CFDH*(1+PFDH*(1-P))where:PTHERMALPOWERRATEDTHERMALPOWER2.7.1CFDH1.49forWestinghouse fuel2.7.2PFDH0.3Page5ofll COLRforDonaldC.CookNuclearPlantUnit1Cycle122.8Allowable PowerLevel-APL(Specification 3.2.6)APLminoverZforCFQ*K(Z)F(Z)*V(Z)*FQp2.8.1V(Z)isprovidedinTable1for+5%AFDtargetband2.8.2CFQandK(Z)areprovidedinCOLRSections2.6.1and2.6.2,respectively 2.8.3FpisprovidedinTechnica1Specification3.2.6Page6of11 Moderator Temperature Coefficient (MTC)MTCx10Ak/k/d6g.F f.000.50UnaceptablOpertion0.005C050orr-1.00-1.50AccptoblaOperaon-2.00-2.50-3.000io2030405060708090iooPERCENTRATEDTHERMALPOSER 0(fMLLYWITH221200OAIWM)0~~0~~~~2~00~~~~~~~~~"2000~~0~0.55;228)

~00~~'W~~~<<-~~00~~~~<<~~0~~~~~0BANKC~~0~~~1.0182):-X045004441000O0~0~~~~~oo>>~<<0~~0~0(0,>25)0~~0~~~00~~%~0>>~~~~0~~~<<~~~~~~~0on~~~00~>>~~~~~~~~0~~00SANKD'.0~~\~~~00000~0<<0000~<<0~~0~~~oo0040.-"::(o,o):

O.o(fULLYINIggTII))0.2o,go.e0.8fRACTIONOFRATKDTHKRMALIOWKR4.0FZCURE2RODINSERTION LIMITSVERSUS'GKKIALPOWER4LOOPOPERATION Page8ofll (o.o,x.o)

(sio~loo)

(12~0,0~925)CKKHSCHT(FT)1012FIGURE4X{2)NOBÃALZXXD fg('Z)ASAFUNCTIONOFCOREHZXGHTFORMKSTZNGHOQSZ FUELpage10of11