ML17318A551

Tech Specs 3.2.2,3.2.1,3.2.6 & 4.2.6 for ECCS

ML17318A551
Person / Time
Site:	Cook
Issue date:	01/09/1980
From:	INDIANA MICHIGAN POWER CO.
To:
Shared Package
ML17318A550	List: ML17318A549 ML17318A551
References
RTR-NUREG-0630, RTR-NUREG-630 NUDOCS 8001140463
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{{#Wiki_filter:IMPACTOFDATA<<PRESENTED INDRAFTNUREG-0630 ONDONALDC.COOKUNIT2LOCAANALYSISA.BaseCaseThemostlimitingbreakforDonaldC.CookUnit2isadoubleendedcoldlegguillotine breakwithadischarge coefficient of0.8.UsingtheFebruary1978evaluation model,theresultsforthisbreakare:.1.Fq=2022.HotRodPeakCladdingTemperature (PCT)atBurstNode=1905.5oF, Elevation =6.05feet.3.HotRodPCTatnon-ruptured Node=2171.2oF, Elevation =7.5feetCladStrainDuringBlowdownAt7.5feet=1.154MaximumCladStrainat7.5feet=9.05%4.AverageHotAssemblyRodBurstElevation =9.0feetHotAssemblyBlockageCalculated =20.4ÃB.BurstNodeThemaximumpotential impactontherupturedcladnodeisexpressed inletterNS-TMA-2174 intermsofthechangeinthepeakingfactorlimitb,FrequiredtomaintainaPCTof2200FandintermsofachangeinPCT(h,.PCT)at,.aconstantFn.Thisprocedure eliminates extrapolating dataoverawilerangeabove2200oFsincetheincreaseinmetalwaterreactionattheseelevatedtemperatures maymakesuchextrapolations inaccurate. UsingNS-TMA-2174: a.+0.016Fcorresponds to+150oF4PCTattheburstnode,b.NRCburstm)delcouldrequire5Fof-0.015,c.Minimumestimated impactofusingNRCstrainmodelisFqof-0.030.Therefore, maximumpenaltyforhotburstmodeis6PCT1(0015+0030)(150F/0.01)=675FMarginto2200F=2200-BurstNodePCT2200-1905.5=294.5F=hPCT2Therefore, Fpenaltyatburstnode(aFqB)(675-294.5)Fx(-0.01/150 F)=-0.025C.Non-Burst NodeThemaximumtemperature calculated foranon-burst locationtypically occursabovethecoremidplaneduringreflood.Thepotential impactinthisareainusingtheNRCfuelrodsmodelscanbe.estimated byexamining twoaspectsoftheanalysis. Thefirstaspectisthechangeingapconductance resulting fromdifferences incladdingstrain.Notethatcladstrainalongthefuelrodstopsafterruptureanduseofadifferent burstmodelcanchangethecalculated bursttime.ThreesetsofaLOCAanalysiswerestudiedtoestablish anacceptable sensitivity toapplygenerically tothisevaluation. ThemaximumPCTincreaseresulting fromachangeinstraininthehotrodis20Fperpercentdecreaseinstrainatthemaximumcladtemperature location. SincethecladstrainduringtheRCSblowdownisunaffected bythenewNRCdata,themaximumdecreaseincladstrainthatmustbeconsidered inthedifference betweenthe"maximumcladstrain"(MCS)andcladstrainattheendofblowdown(BCS)whicharelistedaboveinthe,basecasediscussion. Therefore, 6PCT3=(20F/1%)'(MCS-BCS)(20F/1%)(905%-115%o)=158FThesecondaspectoftheanalysisthatcanincreasePCTisthecal-culatedflowblockage. UsingthemethodsdetailedinNS-TMA-2174, thefollowing changeinPCTiscalculated. APCT4=(1.25F/X)(504-HotAssemblyBlockage) +(2.36F//)(75K-50Ã)1.25(50-20.4)+59F$PCT596F=5PCT4+QPCT3=158+96=254FA,PCT62200F-ActualPCT=2200-2171.2=28.8FTheFreduction requiredtomaintainthe2200Flimitusingtheabovevaluesinconjunction withtheresultsofNS-TMA-2174 F(N-0.23.D.BenefitFromImrovedAnalticalModellinTheeffectonLOCAanalysisofusingimprovedanalytical techniques whicharecurrently approvedforuseinLOCAanalysisofplantsutilizing upperheadinjection intheblowdown(SATANCode)calculation hasbeenquantified via,ananalysisrecentlysubmitted totheNRC.Sincethereviewofthisanalysisisnotyetcomplete, theNRChasestablished acreditthatisacceptable forthisinterimperiod.ThiscreditforDonaldC.CookUnit2,whichisafourloopplantisQF~=+0.20.E.M11111BaseCase(February '78Model)2.02$F~penalty=max(ZLF~B,QF~N) =-0.23QF~benefit=+0.201.99MaximumOverallF~=1.99 ATTACHMENT BTOAEP'."NRC:00322B DONALDC.COOKNUCLEARPLANTUNITNO.2DOCKETNO.50-316LICENSENO.DPR-74 ~hg.I(ChN.2fAEP:NC:00297)Revisions toNLimitin'Condition'of'0'eration'CO '3;2;2Fiure3.2-2andBasis'Item'3/4 2.1-Unit'No.' Thischangeinvolvesloweringthemaximumallowable Fq(Z)limits.Themaximumvalueisbeingreducedfrom2.32to1.99.Untilthe1.99limitwasestablished viatheevaluation discussed inAttachment Aofthisletter,anadministrative limitof2.11wasemployedincompliance withtheNRCorderwhichfollowedthed>hscovery ofa'logicinconsistency'n themetal-water reactioncalculation oftheWestinghouse ECCSEvaluation Models.The2.11administrative limitwasestablished afteranewWestinghouse ECCSanalysis(usingtheOctober1975Modelwiththemetal-water correction) was.performed. Theseanalysesresultsweretransmitted totheNRConApril28,1978.Areanalysis ofDonaldC.Cook2usingtheFebruary1978ModelresultedinamaximumFqof2.02.Thisbaseanalysiswasusedtoestablish thenew1.99limit..Thischangeassuresthecontinued protection ofthepublichealthandsafety.~CN''NI2(ChgN.4fAEP'.NN:00297) 0'Revisions"to'L'CO'3;2;1:and:Fi ure'3;2-'1'-':Unit:No! 2Thischangeinvolveskeepingtheupperpowerlimitforthe'taking ofactionat84/RatedThermalPower.Thechangerequested inAEP:NRC:00297 wastoraisethelimitto90%RTP.Thistechnical basisforthechangeisthesameas=thatofChangeNo.1above.Thischangeassures-thecontinued protection ofthepublichealthand'afety. ~00N':0(ChgII.5fAP:N0:00297)5Revisions'to'L'CO:3;2 6:and:4!2;6'-:Unit'No.' ThischangeinvolveskeepingtheAPDMSturn-onpointat94%RatedThermalPower.Thechangerequested inAEP:NRC:00297 wastoraisetheturn-onpointto"100/RTP.Thischangeisbasedontherevisions toLCO3.2.1andFigure,3.2-1 asdiscussed inChangeNo.2since"the APDMSturn-onpointisdefinedas10ÃabovetheupperlimitofLCO3.2.1.Thischangeassuresthecontinued protection ofthepublichealthandsafety. ~~~~44~ ~~POWERDlSTRIBUTIONLIMITSHEATFLUXHOTCHANNELFACTOR-F" (Z)LIMITINGCONDITIO.'l FOROPERATION 3.2.2F(Z)shallbelimitedbythefollowing relationships: F~(Z)<Q'.99)[K(Z)3forP>0.5pF(Z)<<[(p,qg)] [Y.(Z)]forP<<0.5THEPMAiPOWERi<<andK(Z)isthefunctionobtainedfromFigure3.2-2foragivencoreheightlocation. APPLICABILITY: MODE1ACT!Oh:WithF(Z)exceeding itslimit:a.Complywitheitherothefollowing ACTIONS:1.ReduceTHERMALPOWERatleast1~~foreach1;;F(Z)exceedsthelimitwithin15minutesandsimiliarly reducethePowerRangeNeutronFlux-High TrioSetpoints withinthenext4hours;POWEROPERA.ONmayproceedforuptoatotalof?2hours;subsequenc POWEROPERATIOll mayproceedprovidedtheOverpower uTTripSetpoints havebeenreducedatleast1..foreach1"F~(Z)exceedsthelimit.TheOverpower aTTripSetpointreduc.ion shallbeperformed withthereactorinatleastHOTSTANDBY.2.ReduceTHERMALPOWERasnecessary tomeetthelimitsofSpecification 3.2.6usingtheAPDMSwiththelatestincoremapandupdatedR.b.Identifyandcorrectthecauseoftheoutoflimitcondiiton priortoincreasing THERMALPOWERabovethereducedlimitre-quireddbya,above;THERMALPOWERmaythenbeincreased providedF~(Z)isdemonstrated throughincoremappingtobewithinitslimit.D.C.COOK-UNIT23/42-5I~<<<<<< I45('FIGUREK(Z}-NORMALIZED FQ(Z}ASUNCTIClN OFCOt)Et/EIGI)THEATFLUXHOT,CHANNELFACTORNOPP~LIZ""0 OPER"TINGENYELOPEFOUR-LOOP OPERATION ~Basis:F~(Z)xPECCSlimitofj.'fQ1.0~"I"-:~:".I"~:tI~t:Z.:...I".:.;.i'::-::<E'(}~G(}(})j":":(II.EV,O.SSS) t~I~}.8}~~~~~~~~I~'~~~~~~~~~~~~~~~IiMII~IE}iEl1~4I~~~::t:'::::.'I:: '"'::""I:.-"I::"I:I~~w'g~,(},'.VS+) ,'..:,:.:::i:::".:.:i:.::::,:": i.::::j":".:i:..:.:::i.:::.:"i":.:"~2.I~~~::::::I~~~I~~~I~~~"~','::':~I':.::'- I::':.:l::::::':I '"'::a'."...'.'...'.I'"... ~~~~~~~I02468.1012CoreHeight(feet)D.C.COOK-uliIT23/42-8P4AWl%%Ihl4:A~ BASESThes"ecifica i"nsohissectionprovideassurance cf-ue'.'nta"-rityd.ri,.cC~rditic. I{NormalOperation) andII(Inciden.s cf,'=r=-teFrequency) even.sby:(a)maintaining thecalculated O'GRin.hecoraatora"cvedesigndur;ngnormaloperation andinshorttrm'.ra.".S.en-.s, and(b)l'-itnghe.issiongasrelease,fuelpellettempera.ure andcladd',.g;..ehanical"rcperties towitninassuredesigncr'i-eria.inaddition, li;.;iting-the-oeaklinearpowe.densityduringCondi,c-a .'ven:sr"v..ces assurancthatheinitialconditions assumed=or-heLOCAanalysesare"..e-ar.theECCSaccep.ance criter',aliraqitof2200';isnotexcee'ed. Thedef'.niticns ofcrtainhochannelandpeakingfactorsasuseinthesespec;f;cat;cns areasfollows:Fq(Z)Hea=Flux.'-.'otChannelFactor,fsdefiredasthe."..ax:.-..u.".. loc:-;heatfluxcnthesurfaceofafuelrodatcoreelevati".n Z.diividedbytheaveracefuelrcdheatflux,al1cwingforman-u;acturing tol=rancesonfue'1pelletsandrods.3/4.2.1nuclearEnhairyRiseHot.Channel Fac.or,isdeAndas.he'ratiooft.".eintegraloflinearpc"eralongtherodwi:hthhichesin-.aerated powertotheave.acercdpcwer.RadialPeakingFa"-.or,isdefinedas.heratoc,peakpowerdens'0avelagepcwerdensity'the"Gri"nplanea.tc".oeievaticn Z.FLUXOIFFER'.<CE ('FO)ThelimitsonAXIALFLUXOIFFEREi<CE assurehattheF~(Z,uperbounda,",v.opeo-,~.qgtimesthenormali=daxialpekingac:onisnoexcee"'e" durin"eithernormaloperation orintheeventofxenonredis-tribution f"liowing pcwe.changes.Tarcet,fluxd',f=eren eisdetermined atequilibrium xeronconditions. Thefullylenc-.hrc"'saa.aybeposi:ioned wi.hinthecoreinacc"rcance withheirros"ective irrserticn 1imitsandshouldbeinsertedne=rtheirnor;a'.-c~:;nfc.=-e=-dystatecperation athichpowerlevels.Thevalueof"'":arce-flu"difierence obtaineduncertheseconc;tiors dividedbv-;.e,racicnofRATEDTHER'".AL POX";.";isthetarge"fluxdiffe.e..ea-RAT:-D;H=R.'!AL POWERfortheassociated coreur.".u"con-ditic;,s. ar"etf.uxd;-.ferences -,orotherTHER,'iAL POWERieve:s=..eobtainedbv.-..ulticl".nc.the?ATEDTHER.".AL POWERvaiueby-.heac=roar'.ate a,fractional TH=K.'".AL PG'r'=.=. level.TheperiodicupdatingGThefluxdiffe.ncevalueisnecessary oreflectcoreburnupconsicra-.,-.ns. 0oCoCQQKJl'llIaB3/42-1Ar,end-,. nNo.10 Althoughi";5in.endedthattheplantwillbeoperatedwiththeAX~LFlUXDF"""?:"liC."" withinthe~:5~talge'andabouthetargetfluxdiff=rence, duringrapidp'iant:.'-.'=,=.Y~L PC'~'-"Rreducticns, controlr..dmot'.onuiilcausetke%F0-."dev-.ateoutsideofthetargetbanda.re-du-edT'."'=.".l"~L PG'n=R1evels.Thisdeviaicnwi1lAota=feetthexenonr"is.ibu-icnsuff',ciently ochAgetheenvelopeofpeaking,ac:ors >:hicki-..avbereachedonasubseq'ent returntoP~T""0Ti=".='QLPCW~R(withtheAFDui"hinthetargetband)providedthetiriedurationofthedevi-ationi51lmlted~r'cc01CiAglv,a1hourpenaltydev.ation1imitcumu-iaiveCurActheprevicus2<hoursisprovidedolopertionoutsideofthetar"etbandbuw-thinthe1'.mitsofFigure'.2-1 whilea7',-::-.=.i"~ PC'r'-R1vet5be;ween0"andFQ/ofRATED'IiERiQL poI;EpP.rorIH..=';.L PC<'cR1evel5beuee!l1~'nd50looiK&I"0IHh.."ARL !v'rR,deviations o0ou5-'de~ithetarectbandare1ess5iQnlic:-AtTlepenatyof2AŽursac:uait,.-.;ereflectsthisreducedsignificarce. Provisions folmonior-t,".gtheAFOonariautomat'c basisarederivedf"ot."'-eplanprocsscorn.utrkroughtheAFDHonitorAlarm.Tnecc..."uter deter,ines heoneminu-eaverageofeacho-theOPt.RABL= ~~1'CJgexcored=-ec"oroutptsancprov"esana!arm...essace lr.edlately lf'he00".areas2of4or20"3OP"~wBLexcorochanne!sareoutside~~~~-:;etar"eLandandtheTn""."".'QL P"'ri"-8isgreater-.',",angqy,oi~i=Jin-..APCn'.Ourngoperation atT."'.:-."-..".-'.L PO'4"=31eve!sbe.ueen"G~arids'pt-andb'een1":~and=OsRRlDlH.'L.Q'n".tiiecc..uteroutsaA1aliimssagwhenthepenalydevla.OAaceumiulatesbeyondtAQ1lmi"5of1h"urard2hours,respectively. FioureB3/42-1showsaypicalmonthlytargetband.O.C.COOK-Vali283/42-2 Cs\ CMANGENO.2 3/4.2POWER:,.STRIBJTIONLIMITSfAXIALFLUXDIFFERENCE (AFD)LIMITINGCOleDITIOte FOROPERATION 3.2.1Theindicated AXIALFLUXDIFFERENCE (AFD)shallbemaintained withina+5.targetband(fluxdifference units)aboutthetargetfluxdifference. IAPPLICABILITY: .ai>ODE1AuO'llE50'eRATEDTHERMALPOWERACTION:a.Withthoindicated AXIALFLUXDIFFERENCE outsideofthe+5~targetbardaboutthetargetfluxdifference andwithTHERMALPOWER:Above5')5ofRATEDTHERMALPO!!ER,within15minutes:a)Eitherrestoretheindicated AFDtowithinthetargetbandlimits,or2.b)ReduceTHERMALPOWERtolessthangpssofRATEDTHERMALPOWER.Between50:.andf8/.ofRATEOTHERMALPO!E'ER:a)POWEROPERATION maycontinueprovided: 1)Theindicated AFDhasnotbeenoutsideofthe+5%targetbandformorethan1hourpenaltydeviation cumulative duringtheprevious24hours,and2)Theindicated AFDiswithinthelimitsshownonFigure3.2-1.Otherwise, reduceTHERMALPOWERtolessthan50.,ofRATEDTHERMALPOWERwithin30minutesandreducethePowerRangeNeutronFlux-HighTripSetpoints to<55".ofRATEDTHERMALPOWERwithinthenext4hours.b)Surveillance testingofthePowerRangeNeutronFluxChannelsmaybeperformed pursuanttoSpecification 4.3.1.1.1 providedtheindicated AFDismaintained withinthelimitsofFigure3.2-1.Atotalof16hoursoperation maybeaccumulated withtheAFDout-sideofthetargetbandduringthistestingwithoutpenaltydeviation. E3.1.2D.C.COOK-UNIT2.3/42-1 ONERDISTR'BUT~9'! L',"~SCTIOt(:(Continued) c)Surveillance testingoftheAPDMSmaybeperformed pursuanttoSpecification 4.3.3.7.1 providedtheindicated AFDismaintained withinthelimitsofFigure3.2-1.Atotal(of6hoursofoperation maybeaccumulated withtheAFDoutsideofthetargetbandduringthistestingwithoutponaltydeviation. b.THERMALPO'<<ERshallnotbeincreased aboiegpss,ofRATEDTHERl1ALPOMERunlesstheirdicated AFDiswithinthe+5:>targetbandandACTION2.a)1),abovehasbeensatisfied. c.THERMALPO'<<ERshallrotbeincreased above50'!ofRATEDTHRMALPOWERunlesstheindicated AFDhasnotbeenoutsideofthe+5targetbandformorethan1hourpenaltydeviation cumulative duringtheprevious24hours.SUiVlEILLAl(CE REnU'lR'EM:iTS 4.2.1.1Theindicated AXIALFLUXDIFF"RECCE shallbedetermined tobewithinitslimitsduringPOWEROPERATIO,") above15".lofRATEDTHERMALPOAERby:a.Monitoring theindicated AFDforeachOPEPABLEexcorechannel:-1.Atleastonceper7dayswhentheAFDMonitorAlarmisOPERABLF, and2.Atleastonceperhourforthefirst24hoursafterrestoring theAFDMonitorAlarmtoOPERABLEstatus.b.Monitoring andloggingtheindicated AXIALFLUXDIFFERED'iCE foreachOPERABLEexcorechannelatleastonceperhourforthefirst24hoursandatleastonceper30minutesthereafter, whentheAXIALFLUXDIFFERED!CE MonitorAlarmisinoperable. Theloggedvaluesoftheindicated AXIAL.FLUXDIFFEREHCE shallbeassumedtoexistduringtheintervalpreceding eachlogging.D.C.COOV,-Ur~rT23/42-2. ~~~~~:I-".~~r~~~~~~~~~~~I~~~~~~I~II~~~~~~f~~~~~~'~~~~~~~~~~IJJ~~~~~~A~~~~l-t100...,~...~~~~I~~~ti~~~II~~0frf~~~~~)w~'lf-UNACCEPtA-<""'(Ig,yq)OPER'C"'.I'((~~p)U<iACCEPTABLE-- '==C?=RATIO'i80-3=-j.fI~~~~~~~~~~~If~~~~I~~~r~~60~~~~~~I~~\~~~~~~CCEPTA"L=~~I:OPERA(IG;i-r~~~~~~~r~~~~-~(a>a~340~~~~f~~~~~g+SO)j~~~~\~~~~~20'!..-'I:~~~~rI~~~~I~~~~r~~~~~~~~~~~~~tI~J~~I~~~~~~~~~~~~~~~~'C~~~~~-50-40-30-20"1001020304050FLUXDIFFERENCE.QI) 'roFIGURE3.2-1AXIALFLUXDIFtREiMC-LIMITSASAFUi4CTION QFRATF0THERh1ALPOiVERO.C.COOK-UH?T23/42-4 '.'.3PO's'lERDISTRIBJTICls Lab.TSAXIALPO'r'ERDISTRIBUTIO LIMITINGCO.'iDITIO.'l FOROPERATION 3.2.6Theaxialpowerdistribution shallbelimitedbythefollowing relationship: [F-{Z)]S=f~9~1'.r(z)(R.)(PL)(1O3)(1+-)(1O7)Mhere:rJa.F.(Z)isthenormalized axialpowerdistribution from.himblejjatcoreelevationZ.b.C.'.PListhefractionofRATEDTHER~'lAL POWER.K(Z)isthefunctionobtainedfromFigure3.2-2foragivencoreheigttlocatior,; R.,forthimblej,isdetermined romatleastn=6in-corefluxmapscoveringthefullconfiguration ofpermissible rodpatternsabove0+/ofRATEDTHERt1ALPOWERinaccordance with:nR-=-.~R-~'n=1Mhere:Peas1ijMaxand[F.(Z)]<isthemaximumvalueofthenormalized ijMaxaxialdistribution atelevation Zfromthimblejinmapiwhichhadameasuredpeakingfactorwithoutuncertainties Deas.ordensification allowance ofv~.0.C.COOK-UNIT23/42-17 POWERDISTRIBUTION LIP!.TSLINITIN"CONDITIO.'( FOROPERATION (Coninued)oisthestandarddeviation associated withthimblej,expressed asafractionorpercentage ofR.,andisderivedfromnfluxmapsJfromtherelationship below,or0.02,(2:.)whichever isgreater.n1$-21/2[-1,.1(R.-.Ri)]R-Thefactor1.07iscomprised of1.02and1.05toaccount'ortheaxialpowerdistribution instrumentation accuracyandthemeasure-mentuncertainty associated withF.usingth!emovabledetectolsysemrespectively. Thefactor1.03istheengneeringuncertainty factor.'PPLICABILITY: NODE1abovef'tf.'FRAEDTHERIALPOWER=.ACTION:)Ca.Witha-F(Z)factorexceeding [F.(Z)]Sby.4percent,reduceJJTHER!AL POWERonepercentforeverypercentbywhichtheF.(Z)factorexceedsitslimit'within15minutesandwithinthenexttwohoursei.herreducetheF,-(Z)facortowithinitslimitorreduceTHER,",AL POWEP.toqqy'.orlessofRATEDTHER'>ALPOWER.b.WithaF.(Z)factorexceeding [F.(Z)]Sby>4percent,reduceJJSTHEfNALPOWERto9'j%orlessofRATEDTHER'!AlPOWERwithin15minutes.0TheAPQNSmaybeoutofservicewhensurveillance fordetermining powerdistribution mapsisbeingperformed. D.C.COOK-UNIT23/42-18c! rP}}