ML17037B505

Nine Mile Point Unit 1 Start-up Physics-Test Results-Cycle 5 September 1977

ML17037B505
Person / Time
Site:	Nine Mile Point
Issue date:	11/02/1977
From:	Dise D P Niagara Mohawk Power Corp
To:	Lear G Office of Nuclear Reactor Regulation
References
Download: ML17037B505 (34)

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DISTRIBUTION AFTERISSUOFOPERATING

~ICEiVSEU.S.NUCIEARREGULATORY CQMM'IQNl.NRCFOai+195(2-7S)NRCDISTRIBUTION FQRPART50DOCKETMATERIALOOCTNUMBERFIIENUMBERTO:Mr.GeorgeLearFROM:NiagaraMohawkPwr>>Corp'yracuse,

~kewYorkj.DonaldP~DisciOATSOFOOCUMENT11/2/77OATSRECEIVE0.11/4/77"-TTER)klRIQINAI QCQPYC}NOTORIZED TUNCLASSIF ISO~3-f-/7/fg.PROPINPUTFQRMENCI.QSURE NUMBEROFCOPIESRECEIVED"NineMilePointUnit1Start-upPhysics-Test Results-Cycle 5September 1977"pLANTNAIIE:Ni.neMilePointUnitNo1RJL.11/7/77(1-P),(29-P)SAFETYBRAVCHCHIEF:7)FORACiilON/INFORMATION INTERNAL0ISTRIBUTIONIGE(2)OELDCHECKEISENHUTSHAOBUTLERGRITS~OLLINSJ.O~LPDR:TICO~EXTERNALDISIRIBUTIONNTROI.NUMBERNSIC16CYSACRSSENTCATE0Y~~->iO)12, v'Ie",j'tr*

y~tt'5Yv'rgI~"X~(('(tLBS~ItNIAGARAMOHAWKPOWERCORPORATION NIAGARA'~MOHAWK300ERIEBOULEVARD, WESTSYRACUSE, N.Y.I3202CgpgNovember2,1977'<o~'-'irector ofNuclearReactorRegulation Attn:Mx.GeorgeLear,ChiefOperating ReactorsBranchg3U.S.NuclearRegulatory Commission Washington, D.C.20555Re:Nine,MilePointUnit1DocketNo.50-220DPR-63

DearMr.Lear:

YourletterofMarch4,1977requested NiagaraMohawktosubmitasummaryreportofthestartupphysicstestswithin90daysfollowing completion oftheCycle5startuptestprogram.Theenclosedinformation addresses yourre'quest.

Verytrulyyours,NIAGARAMOHAWKPOWERCORPORATION DonaldP.DiscVicePresident-Engineering 773il0112 SWW/szdEnclosure NINEMILEPOINTUNIT1Start-upPhysicsTestResu1ts-Cyc1e5September 1977 TestAbstracts andResultsThetestabstracts, results,andcomparisons ofmeasuredandpredicted responses forthestartupphysicstestsareoutlinedbelow.1.0Controlroddrivescramtests(hot)2.0Shutdownmargintests.3.0Instrumentation calibrations.

4.0 ColdCriticalcomparison

withactualmeasurements.

5.0 Powerdistribution

calculation comparison above505powerwithactualmeasurements.

1.0CONTROLRODDRIVESCRAMTESTS(hot)

1.1ControlRodDriveScramTestAbstractFollowing amajorrefueling outage,itisnecessary toverifythatthecontrolrodsfullyinsertuponreceiving ascramsignalwithinthetimeintervalspecified intheTechnical Specifications.

Thegeneralprocedure istowithdrawthecontrolrodsintheAsequencetothe"blackandwhite"pattern;thenalternate betweenscram-insertion andwithdrawal untilallthepreviously withdrawn rods.havebeenscrammedaridtheremaining rodswithdrawn.

Atthispoint,therodpatternwillbeintheBsequence"blackandwhite";thenalternate betweenscram-insertion andwithdrawal untilallrodshavebeenscrammed, andtherodpatternistheAsequence"blackandwhite"again.Afteranalyzing thescramtimes,thecontrolrodsarewithdrawn tothespecified beginning ofcy'clepattern.Thecontrolrodtimetestingshallbeconsidered acceptable ifTechnical Specification 3.1.1Cismet.

1.2ControlRod.DriveScramTestResultsTable1.1containstheresultsofthecontrolroddrivescramtests(hot).Resultsofthetestarewithinthevaluesspecified byTechnical Specification 3.1.1C.(see.Table1.2).

Table.1.1RODSCRAhfTIhKSAFTERJULY1977OUTAGERODS02-1902-2302.2702-3102-3506-1506-1906-2306-2706-3106-3506-3910-1110-1510-1910-2310-2710-3110-3510-3910-43,10-0714-1114-.1514-1914-2314-2714-3114.3514-3914-4314-4718>>0318-0718-1118-1538-1918-2318-2718-3118-3518-3918-4318-4718-5122-0322-0722-1122>>'1522-1922.232?-27.32.33.33.33.34.34.34.34.34.33.33.34.35.35.32.32-.37.35.32.35.33;36.37.35.39.36.35.33.34.34.34.34.36.34.35.39.37.35.35.34.3637.34.34.36.32.36.32.34.35.34.3520~o.72.76.71.76.76.80.78.77.78.82.79.78..84.82.72.72.91.84.81.81.76.79.82.75.93.90.85.74'77.78.79.71.71.80.73.87.85.80.75.80.88.85.81.78.75.74.84'.75.75.83.72.7850<o1.541.731.601.661.631.801.691.691.701.'82~1.771.741.871.841.651.651.981.841.861.751.681.671.851.682.07,2.001.881.661.751.711.781.591.541.731.611.911.841.781.711.741.951.881.771.721.681.621.861.681.76.1.941.651.6990~o2.662.942.742.802.683.062.782.862.853.072.993.073.203.112.822.873.313.253.192.952.852.783.143.003.403.393.232.942.992.933.032.742.902.882.953.233.073.013.252.933.283.223.022.963.002.793.112.893.193.443.082.85, yTab1e1.1(Continued)

RODS22-3122-.3522-3922-4322-4722-5126-0326-0726-1126-1526-1926-2326-2726-3126-3526-3926-4326-4726-5130-0330-0730-1130-1530-1930-2330-2730-3130-35'30-3930-4330-4730-5134-0334-0734-1134-1534-1934-2334-2734-3134-3534-3934-4334-4734-5138-0738-1138-1538-1938-2338-2738-31.35.37~33~33.33.35.31.34.33.36,.39.34.36.33.36.33.34.35,.31,35.35..34'.37.38.34.3737..36.36.35.30.35.31.31.32..36.35.36.37.39.36.37.31.32.32.31.36.35.34.36.36.3020~a.82.82.77.77.74.81.76.79.74.83.88.80.84'71.87.79.82.86'79'8]:80.82.83.87.77.91.89.86.74.80.72.79.73.71.74.87.83.81.88.93.76.80.74.75.75.78.80.76.81.86:80.7750~o1.801.781.681.721.551.801.691.721.671.811.881.841.891.691.80,.1.731.881.811.821.751.761.851.821.821.682.081.932.001.681.761.651.731.581.541.651.981.901.781.991.911.681.701.691.621.611.721.741.731.782.031.751.7690~3.072.992.822.962.593.042.862.902.873.073.183.273.222.933.062.943.183.083.082.922.993.163.073.082.883.483.213.343.092.982.852.912.662.582.80'.403.273.053.483.193.042.852.872.772.742.902.943.203.063.432.993.00 Tablel.1(Continued)

RODS5o~20~oSO~o90~o38-3538-3938-4338-4742-1142-1542-1942-2342-2742-3142-3542-3942-4346-1546-1946-2346-2746-3146-3546-3950-1950-2350-2750-3150-35Average.36.3'3'35.30.31.36.37.$5.37.33.36.36.30.29.35.32.36.35.36-.28.32.34.31.35.33.345.81.78.75.72.77.82.86.78.86.72.85.81.76.72.78.79.83.84;80.69.76.77.74.80.77.8141.751.691.631.541.721.772.071.69'.901.581.831.741.681.601.671.751.811.871.701.511.643.611.631.751.631.782.962.892.762.602.932.993.652.85'.232.793.042.942.842.722.793.013.033.062.882.602.752.702.782.922.783.08 Table1.2AveraeScramInsertion TimeComarisons'AInsertedFromFullyWithdrawn AverageScramInsertion Times(SEC)AfterJuly1977TechSpecOutaeLimit2050900.3450.8141.783.080.3750.902.005.00

2.0 SHUTDOllN

MARGINTEST 2.1ShutdownMarinTestAbstractThepurposeofthistestistodemonstrate thatthereactorcanbemadesubcritical withashutdownmarginof0.25Ãkatanytimeinthesubsequent cyclewiththestrongest operablecontrolrodfullywithdrawn.

Withthecoreatitsmostreactivecondition, coldandxenon-free theanalytically strongest controlrodisfullywithdrawn fromthecore.Asecondcontrolrodisthenwithdrawn toapositionwhichresultsinanamountofreactivity atleastequaltotherequiredmaroin.Theshutdownmargintestshallbeconsidered acceptable ifthereactorhasremainedsubcritical throughout thetest.

2.2ShutdownMarinTestResultsFigure2.1summarizes theresultsoftheShutdownMarginTest.Controlrod18-27,shownanalytically tobethestrongest, wasfullywithdrawn fromthecore.Controlrod14-31wasthenwithdrawn toposition08whichanalytically resultedinaninsertion ofapproximately

.8%deltaK.AsshownonFigure2.1thereactorremainedsubcritical throughout thetest.Resultsofthetestarewithinthecriteriaspecified intheTechnical Specification.

FIGURE2.1REACTIVITY MARGIN-CORELOADINGProcedure:

1.AllRodsInSRM'1121314Readings433529172.RodCR118-27selected3.RodCR118-27position484.ReactorSubcritical SRM'1121314Readings445030205.RodCR214-31Selected6.RodCR2toposition08.7.ReactorSubcritical SRM11121314Readings45583219

3.0 Instrumentation

Ca1ibration Test T.\3.1Instrumentation GalibrationTestAbstractThepurposeofthistestistocalibrate theLocalPowerRangeMonitoring (LPRM)System.TheLPRMSystemisaspatialarrayofin-corefissionchambersusedtomonitorthein-coreneutronflux.Intheprocesscomputerformulation, eachchambersignaliscalibrated toproduceameterreadingwhichisproportional totheneutronfluxinthewatergapattheaxialelevation ofthechamber.Thecalibration procedure consistsofdatataking,calculations andamplifier adjustments.

AsetofLPRMreadingsandTransverse In-CoreProbe(TIP)tracesarerecorded.

Theprocesscomputerisusedtodetermine thecorrectreadings'hat theLPRM'sshouldhavereadbasedontheTIPtraces.Theindividual amplifier inputcalibration currentsrequiredtoproduceaselectedstandardmeterreadingoneachLPRMmeterarerecorded.

Theseinputcurrentsaredividedbytheratioofthecalculated-to-observed LPRMreadings(GainAdjustment Factors-GAF).

Thesenewinputcalibration currentsarethenappliedandtheamplifier gainsadjustedtoproducetheselectedstandardmeterreadings, therebycalibrating theLPRM's.

3.2Instrumentation Calibration TestResultsFigure3.1containstheLPRNInstrument Calibration Resultsforaninstrumentation calibration performed atapowerlevelof985ofrated.

FIGURE3.1LPRNINSTRUMENTATION CALIBRATION RESULTSLPRHPROBEASFOUND'NPUT'CURRENT G;A.F.REqUIREDINPUTCURRENT'105%8-41C 36-33C36-49C44-41C28-41A36-33A36-49A44-41A36-41C28-49C44-33C28-33C36-41A28-49A44-33A28-33A36-17C44-25C28-09C28-25C36-17A44-25A28-09A28-25A28-17C36-09C36-25C~44-17C28-17A36-09A36-25A44-17A12-33D20-41D12-33B20-41B12-41D04-33D20-49D20-33D12-41B04-33B51288085585172084299494311001010515970-874No807783970815630903970473752890949106065697092775053682393089498330711201483124011601060857Detec.871.051.00.991.78l.051.01.991.081.061.111.081.11tor1.05.681.041.06.961:091.091.0,81.051.101.06.971.001.011.091.03l.11l.001.031.00l.00l.17.35l.05.961.181.031.05588838Same859-3958019849521018952463898787InpUt76811519327686568288904387168098951092Same960850728482Same902SameSame2621160141212929831029816 FIGURE3.1(Continued)

LPRMINSTRUMENTATION CALIBRATION RESULTSLPRMPROBEASFOUNDINPUT'CURRENT G.A.F.REQUIREDINPUTCURRENT105K20-49.B20-33B12-17D20-09D04-25D20-25D12-17B20-09B04-25B20-25B04-17D12-09D12-25D20-17D04-17B12-09B12-25B20-17B12-.33A20-41A'12-33C20-41C12-41A04-33A20-49A20-33A12-41C04-33C20-49C20-33C-12-17A20-09A04-25A20-25A12-17C20-09C04-25C20-25C04-17A12-09A12-25A85988714101200129011231031791100010181110105210209411010930980685No87067682084094474373811501095580830910733No555100082310309707531061413DetecDetec1.001.011.091.081.031.131.051.021.051.08.95.991.021.04l.131.04.95.99tor1.03l.Ol1.020.001.061.021.091.010.001.031.201.04l.18tor1.061.051.121.081.07.96.991.05Sarge8781293111112529939817759529421168106310009059718941031691Input84466980371289072867711387555636918756215239527349539067841071393Input FIGURE3.1.(Continued)

LPRMINSTRUMENTATION CALIBRATION RESULTSLPRMPROBE20-17A04-17C12-09C12-25C20-17C28-41B36-33B36-49B44-41B28-41D36-33D36-49D44-41D36-41B28-49B44-33B28-33B36-41D28-49D44-33D28-33D36-17B44-25B28-09B28-25B36-17D44-25D28-09D28-25D28-17B36-09B36-25B44-17B28-17D36-09D36-25D44-17DASFOUNDINPUTCURRENT694990970725900760870926800557105010001108109090410101230130014601420125010087407419701300710154012561042800680275110011439951120G.ADF.1.01.971.021.111.021.011.031.04"1.011.051.061.03.981.071.011.051.801.091.021.301.091.091.031.001.071.091.041.22l.111.101.041.020.001.061.03I.13.99REQUIREDINPUTCURRENT105K6871020950653882752844890792530990970113010198959626831193143110921147925718Same906119368312621131947769666238103711098801131HoDetectorInput-NosignalisreceivedfromtheLPRM.Thiscouldbecausedbyfaultyconnections orfaileddetectors.

4.0ColdCriticalComparison

'Il~e4.1ColdCriticalComarisonTestAbstractThecoldcriticalcontrolrodpatternwasanalytically derivedasshownonFigure4.1.Controlrodwithdrawals totargetcontrolrodinventory werecomparedtotheanalytically derivedpattern.

4.2ColdCriticalComarisonTestResultsFigure4.2containstheactualcoldcriticalcontrolrodpattern.Thedifference betweentheobservedandpredicted controlrodinventories islessthanonepercentinreactivity.

COI:RITICAL CONTROLRODPATTERNX=POSITION48514743393531272319151173XXXXXX261014182226303438424650FIGURE4.151474339353127-231915ll73261014182226303438424650FIGURE4.2

5.0 PowerDistribution

Comparison 6.1PowerDistribution CoarisonTestAbstractThepowerdistribution inthecoreismonitored bytheprocesscomputer.

Offlinepredictive Modelsareusedtodevelopapowerdistribution corresponding tospecificplantoperating conditions.

5.2PowerDistribution ComarisonTestResultsThepowerdistribution comparison testwasperformed underthecoreoperating conditions shownonFigure5.1.Comparisons oftheactualtopredicted coreaxialpowerdistribution isshownonFigure5.2.Comparisons oftheactualtopredicted coreaverageradialpowerdistribution isshownonFigure5.3.

'6DateCorePowerLevelCoreFlowRatePressureSubcooling August31,19771830MMt(98.9%)66.4Nlb/hr.(98.4/)1035PSIA22.9Btu/Lb.CONTROLROOPATTERNNOTCHESWITHORAWN BLANK~48~FULLOUT'1474339353127223414382214221434,38143434222322191511731438143414143422261014182226303438424650Figure5;1NINENILEPOINTUNIT1OPERATING CONDITIONS FORBEGINNING OFCYCLE5COf<PARISONS 1.6Predicted Actual1.41.21.00.80.60.40.2BOTTHAXIALNODETOPFIGURE5.2.CoreAverageAxialPowerDistribution Comparisons forNineMilePointUnit1,August31,1977

~>11IE1die~~Figure5.3COREAVERAGERADIALPOWERDISTRIBUTION

~Rin'Actual'Predicted CenterEdge1235671.0120.9271.1231.0821.1041.0430.8241.0020.9221.0841.0721.1271.0560.816 RECEIVEODOCUHEHTPRGCESSI!IG UNIT