ML17223A299

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St Lucie Unit 2,Cycle 5 Startup Physics Testing Rept. W/ 890821 Ltr
ML17223A299
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 08/21/1989
From: WOODY C O
FLORIDA POWER & LIGHT CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-89-304, NUDOCS 8908280181
Download: ML17223A299 (19)
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gcCELEBRATED D1STRIBUTl 0EMONSTRAT104SYSTEMREGULRTCINFORMATION DISTRIBUTIONIISTEM (RIDE)-'ACCESSION NBR;.8908280181 DOC.DATE:

89/08/21NOTARIZED:

NOFACIL:50-389 St.LuciePlant,Unit2,FloridaPower6LightCo.AUTH.NAME'UTHORAFFILIATION WODDYFC.O.

FloridaPoweraLightCo.RECIP.NAME RECIPIENT-AFFILIATION DocumentControlBranch(Document ControlDesk)

SUBJECT:

"StLucieUnit2,Cycle5StartupPhysicsTestingRept."W/890821ltr.DOCKETI05000389DISTRIBUTION CODE:IE26DCOPIESRECEIVED:LTR tENCLlSIZE:/4TITLE:StartupReport/Refueling Report(perTechSpecs)NOTES:RECIPIENT IDCODE/NAME PD2-2LANORRISFJINTERNAL:

ACRSNRRCHATTERTON G02H2DRSS/EPRPB EXTERNAL:

LPDRNSICCOPIESLTTRENCL102255111111111l.RECIPIENT IDCODE/NAME.

PD2-2PDIRMTECHADVNUDOCS-ABSTRACT RGN2FILEOlNRCPDRCOPIESLTTRENCL1111111111hRIDNOTE'IOALL'KIDS>>RECIPZERIS PIZASEHELPUS'TOREDOCETATE!CONI'AC1'IHE DXXMWI'2GK)L DESK,KXMPl-37(EXT.20079)K)ELBC2QXRYOURNAMEPBCHDISTRIKTZIQN LISTSFORDOCUMENIS YOUDOHITNEZDtTOTALNUMBEROFCOPIESREQUIRED:

LTTR18ENCL17 P.O.Box14000, JunoBeach,FL33408-0420 AUGUST.211989L-89-30410CFR50.36U.S.NuclearRegulatory Commission Attn:DocumentControlDeskWashington, D.C.20555Gentlemen:

Re:St.LucieUnit2DocketNo.50-389StartuPhsicsTestinReortInaccordance withSection6.0,Administrative

Controls, viz.,Sections6.9.1.1,6.9.1.2and6.9.1.3oftheSt.LucieUnit2Technical Specifications, FloridaPower&LightCompanysubmitstheSt.LucieUnit2,Cycle5StartupPhysicsTestingReport.Pleasecontactusifthereareanyquestions concerning thissubmittal.

Verytrulyyours,+,d~~C.O.WooyActingSeniorVicePresident

-NuclearCOW/MSD/gp Attachment cc:StewartD.Ebneter,RegionalAdministrator, RegionII,USNRCSeniorResidentInspector, USNRC,St.LuciePlant8908280185 890822PDRADQCK0500038'rr PPNUoofP'roupcompoor St.LucieUnit2,Cycle5StartuPhsicsTestinReort I'

St.LucieUnit2,Cycle5StartuPhsicsTestinReortTableofContentsSectionTitleIIIIIIIVVVIVIIIntroduction FuelDesign/Core LoadApproachtoCriticality ZeroPowerPhysicsTestingPowerAscension ProgramSummaryReferences ListofFiuresFiureNo.Title12345678CoreLoadPatternInverseCountRateRatioPlotChannel1InverseCountRateRatioPlotChannel2BoronConcentration vs.DilutionTimePowerDistribution 257.PowerPowerDistribution,507 PowerPowerDistribution 807PowerPowerDistribution 1007.PowerListofTablesTableNo.TitleCycle'ReloadSub-Batch ID-ApproachtoCriticality byDilutionCEAWorthSummary St.LucieUnit2,Cycle5StartuPhsicsTestinReortI.Introduction

-"Theintentofthisreportistoprovideadescriptio'n ofthefueldesign,coreloadandasummaryofthestartupphysicstestingandpowerascension programperformed afterthecompletion ofthecorereload.Performing thestartupphysicsandpowerascension testingvalidates important coreparameters (asdescribed intheANSIstandard19.6.1).Themajorpartsofthetestingprogramareasfollows:1)InitialCriticality 2)ZeroPowerPhysicsTesting3)PowerAscension TestingII.FuelDesin/CoreLoadTheCycle5coreconsistsofCombustion Engineering fuel.Thereare217fuelassemblies utilizedintheSt.LucieUnit2core.Thecoreloadforcycl'e5consisted of80freshBatchGassemblies, 76BatchFassemblies, 57BatchEassemblies, and4BatchDassemblies.

Afurtherbreakdown ofdistinctsub-batches iscontained inTablel.TwoBatchDassemblies (D006,D008),threeBatchEassemblies (E013,E004,E037)andtwoBatchFassemblies (F031,F020)werereconstituted andcertified byCombustion Engineering asreusable.

TheBatchGassemblies arethefirstdebrisresistant designtobeusedatSt.LucieUnit2.Debrisresistance wasachievedbylengthening thelowerendcapfrom0,641to3.370inches.Toaccomplish thischangeandstillmaintaintheactivefuellength,thefollowing specificchangesweremade:1.Theupperplenumlengthwasreducedfrom7.858to5.829inches.Tomaintainplenumvolume,theplenumspringwasredesigned.

2.Theoveralllengthofthefuelrodwasincreased from146.199inchesto146.899inches.3.Theheightofthelowerendfittingwasreducedby0.700inchestocompensate forthelongerfuelrodsandpreserveshouldergap.

St.LucieUnit2,Cycle5StartuPhsicsTestinReortTheregionGfuelassemblies preservetheactivefuellength,plenumvolume,andthe2.147inchshouldergap.BatchGassemblies provideincreased debrisresistance withlongersolidlowerendcapswhilestillbeingcompatible withotherCEassemblies.

TheCycle5coreloadingmapisrepresented inFigure1.TheassemblyserialnumbersandControlElementAssemblyIDnumbersaregivenforeachcorelocation.

Following thefuelshuffleandpriortotheapproachtocriticality CEAdroptestswereperformed.

Theobjective ofthist'estwastomeasurethetraveltimefromthefullywithdrawn position(UEL)tothe,907insertedpositionunderhotfullflowconditions, aswellastoverifycorrectoperation oftheCEApositionindication system.TheaverageCEAdroptimewasfoundtobe2.74'seconds withamaximumandminumumtimeof2.92secondsand2.56secondsrespectively, Alldroptimeswerewithintherequirements ofTechnical Specification 3.1.3.4.III.AroachtoCriticalit Theapproachtocriticality wasinitiated bydilutingfromanon-critical Boronconcentration of2022ppmtoapredicted criticalBoronconcentration of1659ppm.Inversecountrateratioplotsweremaintained duringthedilutionprocessandareshowninFigures2&3.AplotofBoronconcentration versusdilutiontimeisprovidedinFigure4.Table2delineates thedilutionrate,initialandfinalBoronconcentrations, andelapsedtimes.InitialCriticality forSt.LucieUnit2Cycle5wasachievedat2225onApril23,1989withCEAGroup5at55incheswithdrawn andallotherCEAsfullywithdrawn.

IV.ZeroPowerPhsicsTestinThetestsperformed duringtheZeroPowerTestingPrograminclude:1.Reactivity ComputerCheckout2.UnroddedCriticalBoronConcentration 3.Moderator Temperature Coefficient Measurement 4.CEAworthmeasurments Thesetestsareperformed inaccordance withtheANSIstandard19.6.1,including acceptance criteriaunlesssuperceded byTechnical Specifications.

St.LucieUnit2,Cycle5StartuPhs'icsTestinReortThereareseveralchecksdonetoensureproperfunctioning oftheReactivity Computer.

TheReactorpowerlevel/flux isadjustedsuchthatalltestingisconducted abovethenoiselevelandbelowthepointofaddingnuclearheat.Furtherverification oftheproperoperation ofthereactivity computerwasaccomplished throughmeasuring boththepositiveandnegativereactorperiodsbyaddingknownamountsofpositiveornegative, reactivity.

CThemeasuredunroddedCriticalBoronConcentration wasdetermined tobe1705ppm.Thepredicted unroddedCritical'oronConcentration was1687ppm.Themeasuredvaluewaswellwithinthe+100ppmoftheprediction acceptance criterion.

TheARO,HZPModerator Temperature Coefficient wascalculated frommeasureddata,tobe3.65pcm/oF,Thissatisfies Tech.Spec.3.1.1.4a.

whichrequiresthattheMTCshallbelesspositivethan5pcm/oF.ThemeasuredMTCwasalsowellwithinthelimit'f+2pcm/oFofthedesignMTCvalueof3.37pcm/oF.TheRodWorthmeasurements wereperformed employing theRodSwapmethodology.

TheintegralworthoftheReference Bank,CEAgroupB,wasdetermined byboration/dilution.

Theintegralworthsofthetestgroupsweredetermined byexchangewiththeReference Bank.Acomparison ofthemeasuredanddesignCEAgroupintegralworthsisprovidedinTable3.Thefollowing acceptance criteriaforrodworthmeasurements weremet.1.ThemeasuredvalueofeachtestCEAgroupworthsiswithin+15Kor+100pcmofthedesignworth,whichever isgreater.2.ThemeasuredworthoftheReference GroupandthetotalworthforalltheCEAgroupsmeasurediswithin+107.ofthetotaldesignworth.V.PowerAscension Fluxmapsfromthefixedincoredetectorsystemswereusedtoverifytheabsenceofabnormalities inthecorepowerdistribution, peakingfactors,andtiltatthe25,50,80,andgreaterthanorequalto98percentpowerplateaus.

NuclearanddeltaTpowercalibrations andamanualcalorimetric checkwereperformed ateachofthepowerplateaus.

AsummaryoftheresultsofthefluxmappingateachpowerlevelisgiveninFigures5,6,7,and8.

St.LucieUnit2,Cycle5StartuPhsicsTestinReortVI.~Summa'll Technical Specifications weresatisfied.

VII.References 1.CELetterF2-CE-R"312, E.L.TrapptoH.A.Barth,datedMarch10,19892.CELetterF2-CE-R-313, E.L.TrapptoH.A.Barth,datedMarch17,19893.CELetterF2-CE-R-320, E.L.TrapptoH.A.Barth,datedMay9,19894.CELetterF2-CE-R-321, E.L.TrapptoH.A.Barth,datedMay9,19895.St.LucieUnit2Technical Specifications tSt.LucieUnit2,CycleStartuPhsicsTestinReFIGURE1St.LucieUnit2Cycle5CoreMapYXXIIIYT8RPNIILKJH6FEDC8AIIIIIIIIE40E69E05E3820171514131P1110687E34E03S-lE71E5260560762538F0662742609613EGBE18E0762185623F2716'F2364179F03E1243F4364765F60E3391F4165312F15E1913F2965132629F2533EO663193E20Esl601619F1917F1863750F21E2574E2466339672F4922F51644626740011ilF7365414876F7559E2166070F31E264F3666536633F3354E55611602617F1629FOBF38F617287Ei1668E3245680F576702061F53643D0067E65F54F139071F59649f4046F12F39E512464F63655F45E67F70F04849FGB661000115678F676795719E16666E3531F07F48F64592614635F015581825F37639496483F4666273F6866735F4763651603604FioF2075E066404467123E22F5664534E72F5095F6265966F05000856F6665718EBBF7689F7264253669E2860E0463830FOBF3426615'16E49620E108F1762286F22F2876E2764648673E1521F5265210675E3641F7465869677E1458E2366468F32F266F3563294634E1363E45E17624E5928F24606F0260867F4462678F65Fl188F42628F1481052F30612630E5037EOBE29E70EoiS"2E31E30E02E66E39INSERTID80BATCH876BATCHF57BATCHE4BATCHD St.LucieUnit2,Cycle5artuPhsicsTestinReortFigure2ICRRPIotStortupChonnel1O.Q0.60.70.80J5OA040,1204060NIutlonTlnw(mlnutee)

Figure3ICRRplotStortupChonn42O.Q0Jh0.7O.a04OAOAOD0.1NylonTlnw(aQrahes)

St.LucieUnit2,Cycle5SrtuPhsicsTestinReortFigvre4BoronConoentratfon veMuthn11m'04050NuthnTime(mhutee) tSt.LucieUnit2,Cycle5StartuPhsicsTestinReorFIGURE5PowerDistribution 25ZPower'easured:

(CECOR/INPAX)

SnapshotID/IC042889Powerlevel29.48ZBurnup0.10EFPHCEAPosition122Design:Powerlevel25.007Burnup.,5.00EFPHCEAPOSITION122%TILT=.031FxyT=1.745FT1.684F=2.3150.7533',0'270$$+0~0263$34$$12067$0'842$$1'300$0.9660$',-0'233',+0.0182',

32'3,420'0'716,'.0947',

08050$0'470$10830$$+0~0370$+0~0246$+0~0117$29'0'1',13292$10370$12968$09155$13190$1~0080$1~3040$0~9060$',+0.0102',+0

'290',-0'072$+0~0095',25'6'728$$1.1946$1.0001$1.3154$1.0682$1.2326$11580$0~9640$12950$1~0430$12500$)+00366$+00361$+0~0204$+00252$0~0174$2021'223"24$$1~1249$1.2157$1.4600$0.9841$1.2991$0.8127$11240$11730$14440$09390$12980$0'320$',+0'009',+0'427',+0'160',+0'451I+0~0011,'-0'193,'4'5'6'7'8'9,'

~4104$11370$12045$12148$1~0740$0~9398$03930$11420$11920$11860$10560$0~9160$$+0~0174$00050$+00125(+90288$+0~0180$+0~0238$80'l'2'3'

'564$09946$12762$11953$0'310$03530$0'880$12370$11970$09270$$+0~0034$+0~0066$+0~0392$0~0017$+0~0040$5'$0.3243$0.3452$03070$0'310$$+0~0173$+0~0142$KEYMEASUREDDESIGN,'DEVIATION(Xi),'

'$$RMSDEVIATION

=2.2737"Technical cification LimitingCondition forOperation (LCO)3.2.4statesthattheAzimuthal PowerTilt7Tq)shaLlnotexceed.030.LCO3.2.4ACTIORa.requiresthatonceTqisdetermined tobe).030but(.10eithercorrectTqvithin2hoursordetermine vithinthenext2hoursandatleastoncepersubsequent 8hoursthatthecorepeakingfactorsarevithintheTechnical Specification limits.Anincoredetectorsnapshotvascompleted approximateIy 1hourafterexceeding theTqlimitof.030.Thenevcalculated Tqvas.012.AdditionalIy, bothofthecorepeakingfactorswerewithin'he Technical Specification limits.Minorvariations incorephysicsparameters canbeexpectedduringlovpovertestingfollowing arefueling.

tSt.LucieUnit2,Cycle5StartuPhsicsTestinReor~FIGURE6PowerDistribution 507PowerMeasured:

(CECORIINPAX)

SnapshotID//Fp43p89Powerlevel50.00XBurnup7.43EFPHCEAPosition122".Design:Powerlevel50.007.Burnup10.00EFPHCEAPOSITION122TILT=.014Fzy1s692FrT=1.635F=2.0820~7769(I0.76QQ',0.0169I34II1.2407i1.0197(I1.2630i1.0000(00223(+0'197(32'3552i09937i11264i08300(09770(11130(',+0~0252',+4.0167',+0

~013429'0'1',1.3329(1.0473(1.3210(0.9424(13260(1'280(1'240(0'280',+0.0069',+0.0193',-0.0030',+0

'144'I25262728(1.1793i0.9952'1.3223',

1.0813,'.2567',

11520(09680i13020(1'590(12660(',+0.0273',+0.0272,'+0.0203,'+0.0223,'"0.0093(

20(2-I22(23(24il11071(11841(14433(0'852(1'088(08301(1.1050,'.1570',

1.4230',0.9400,'.'3000',

0.8440,'+0 002li+0~0271i+00203i+00452i+0~0088i"0'139i141516171819(I0.4030(1.1155I1.1856(1.198811.0699(0.9441(03910(11200(11700(11700(10480(0~9200((+00120(00045(+00156(+0~0288(+00219(+0~0241(9(1PI0~3530(09736(12390I11816(09350(0.3520'0'660'1.2070'1.1770'0

'200',',+0F0010',+0.0076,'+0.0320',+0

~0046',+0~0150,'3(4(5(6(7(I0.3177'0.3434,'.3070'0

'320(i+00107I+0~0114(MEASUREDDESIGN,'DEVIATION(Xi)',

IIIIRMSDEVIATION

=1.9347.

St.LucieUnit2,Cycle5PhsicsTestinReort~FIGURE7PowerDistribution 80ZPowerMeasured:

(CECOR/INPAX)

SnapshotID/IC050289.DAT Powerlevel78.93ZBurnup40.45EFPHCEAPosition135Design:Powerlevel80.00ZBurnup30.00EFPHCEAPOSITION131TILT=.013Fxy1646FrT=1.581F=1.9670'072(07960(I0.0112II34I12856'0385'2980'0360'~0124~+00025/32'3'8673054i11355670(10100(11460))+00003(0.0046J0~0105(29'0'1157)10252(1'202)09423)I1.3300I1.0490I1.3440i0.9510I,'-0'143,'-0'238',-0.0238',-0

'087'5'6'7'8',

1.1373I0.9676I1.2907I1.0732I1.2529I1.1460'0.9720'1.3080'1.0740'1.2810,'

'087)0'044(0F0173(0F0008(00281)2021222324(10731<11206i1'827i0'442<12878'8532'0930)11400)13990(0'410)13000(08580(-'-00199'"00194'-0.0163,'+0.0032',"0.0122,'-0.0048'4'5'6'7'8'9' 3887i10644i1.1331<11506'~0470i09301'3900(10960(11460(11520)10450(09330(',-0'013',-0.0316,'"0

'129',-0.0014,'+0

'020'-0.0029' 8I9I10I]]I121]3II0.3402I0.9292I1.178011.1518I0.9198II0.3490I0.9400I1.1730'I1.1550I0.9140100088(0~0108f+00050(0~0032~+0~0058I3I415I6I7II03038(03333(0~3060)03330)00022i+0~0003(MEASUREDDESIGN(DEVIATION(Xi)t IIIIRMSDEVIATION

=1.293Z St.LucieUnit2,Cycle5tartuPhsicsTestinReort~FIGURE8PowerDistribution 1007PowerMeasured:

(CECOR/INPAX)

SnapshotID//A051189Powerlevel99.70KBurnup209.01EFPHCEAPosition135Design:Powerlevel100.007Burnup75.00EFPHCEAPOSITIONaroTILT=.012Fzy1o631FT1551Fq=1.875i0.8234I0~8220ii+00014iI34I13241i10633iI1.3210I1.0610Ii+0'031i+00023i32'3'0.8923I1.0288I1.1646i0'880i'10330i11680ii+00043i00042ii0'034ii29'0'1,'~3456i10706i13469i0'633i13360i10630i13550i09660i',+0.0096',+0.0076',-0 F0081',-0.0027',

25'6'7'8' 1489ii09977',1.3174',1.0794',1.2781',11420i09740i1~3110i10840i1~2890iI+0~0069I+0.0237I+0.0064I-0~0046I-0.0109I2021222324i1.0793'1.1414,'.4061'0.9457,'.2949,'.8635i 1.0810i1.1300i13840i0'420i12990i0'660i0'017i+0~0114i+00221i+0~0037i0'041i00025i141516171819i0'966i10856i11509i11495i10354i0'353i03890i10800i11310i11310i10430i09390ii+0~0076i+0~0056i+00199i+00185i00076i00037i8910111213i0'535,'.9359i 1.1671'1.1476,'.9203i 0'480'0'25o'1.1520'1.1410'0.9110',

i+0'055i+0~0109i+0~0151i+0~0066i+0~0093iI3I4I5I6I7II0~3270i03432i03050i03350ii+0'220i+0~0082iMEASUREDDESIGNiDEVIATION(Xi)',

1IIIRMSDEVIATION

=1.0427 St.LucieUnit2,Cycle5StartuPhsicsTestinReorTable1Cycle5ReloadSub-Batch IDSub-batch fafAssembffea DO3.65E10E20E2LE2H8-281293.203.603.603.60F328F360F364FZ8G1HG20G2LGZH28162012-121620323.203.603.603.60/3.20 3.604.004.004.00/3.60

St.LucisUnit2>'ycle5StartuPhsicsTestinReorTable2ApproachtoCriticality byDilutionDllutfonRate(gpm)lnltlalBoronConc.(ppm)FlnolBoronConc.(ppm)DllutfonT1m>>(min.)20225388170540Table3CEAWorthSummaryTeatOroupS(Ref.)2AM>>aauredWorthpe(M)111%3315223337.37d1.33727~Pr>>dict>>d Worthpcm(D)1$57A2200.7354.0531.I57$h.OII05.81727XDN>>rene>>((D-Ll)/u)100

.31.822.82.9810.70.858043.28

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