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| number = ML14133A677
| number = ML14133A677
| issue date = 05/13/2014
| issue date = 05/13/2014
| title = Vogtle, Unit 1 - Cycle 19 Core Operating Limits Report
| title = Cycle 19 Core Operating Limits Report
| author name = Pierce C R
| author name = Pierce C R
| author affiliation = Southern Co, Southern Nuclear Operating Co, Inc
| author affiliation = Southern Co, Southern Nuclear Operating Co, Inc
Line 16: Line 16:


=Text=
=Text=
{{#Wiki_filter:CharlesR.PierceRegulatory AffairsDirectorMAY132014DocketNos.:50-424SouthernNuclearOperating Company,Inc.40Inverness CenterParkwayPostOfficeBox1295Birmingham,AL35201Tel205.992.7872 Fax205,992.7601U.S.NuclearRegulatory Commission ATTN:DocumentControlDeskWashington,D.C.20555-0001 VogtleElectricGenerating PlantUnit1Cycle19CoreOperating LimitsReportLadiesandGentlemen:
{{#Wiki_filter:Charles R.Pierce Regulatory Affairs Director MAY13 2014 Docket Nos.: 50-424 Southern Nuclear Operating Company, Inc.40 Inverness Center Parkway Post Office Box 1295 Birmingham,AL35201 Tel 205.992.7872 Fax 205,992.7601U.S.Nuclear Regulatory Commission ATTN: Document Control Desk Washington,D.C.20555-0001 Vogtle Electric Generating Plant Unit 1 Cycle 19 Core Operating Limits Report Ladies and Gentlemen:
NL-14-0753 Inaccordance withTechnical Specification 5.6.5.d,SouthernNuclearOperating CompanysubmitstheenclosedCoreOperating LimitsReport(COLR)forVogtle ElectricGenerating Plant(VEGP)Unit1Cycle19,Version1.ThislettercontainsnoNRCcommitments.Ifyouhaveanyquestions, pleasecontactKenMcElroyat(205)992-7369.
NL-14-0753 In accordance with Technical Specification 5.6.5.d, Southern Nuclear Operating Company submits the enclosed Core Operating Limits Report(COLR)forVogtle Electric Generating Plant (VEGP)Unit1 Cycle 19, Version 1.This letter containsnoNRC commitments.Ifyou have any questions, please contact Ken McElroy at (205)992-7369.Respectfully submitted.
Respectfully submitted.
C.R.Pierce Regulatory Affairs Director CRP/GLS/
C.R.PierceRegulatory AffairsDirectorCRP/GLS/


==Enclosure:==
==Enclosure:==


CoreOperating LimitsReport,VEGPUnit1Cycle 19,Version1 U.S.NuclearRegulatory Commission NL-14-0753 Page2SouthernNuclearOperating CompanyMr.S.E.Kuczynski,
Core Operating Limits Report,VEGPUnit1Cycle 19, Version 1 U.S.Nuclear Regulatory Commission NL-14-0753 Page 2 Southern Nuclear Operating CompanyMr.S.E.Kuczynski, Chairman, President&CEOMr.D.G.Bost, Executive Vice President&Chief Nuclear OfficerMr.T.E.Tynan, Vice President-Vogtle1&2Mr.B.L Ivey, Vice President-Regulatory AffairsMr.D.R.Madison, Vice President-Fleet OperationsMr.B.J.Adams, Vice President-EngineeringMr.S.C.Waldrup, Regulatory Affairs Manager-Vogtle RType: CVC7000 U.S.Nuclear Regulatory CommissionMr.V.M.McCree, Regional AdministratorMr.R.E.Martin,NRR Senior Project Manager-Vogtle 1&2Mr.L.M.Cain, Senior Resident Inspector-Vogtle1&2 Vogtle Electric Generating Plant Unit 1 Cycle 19 Core Operating Limits Report Enclosure Core Operating Limits Report, VEGP Unit 1 Cycle 19, Version 1 VOGTLE ELECTRIC GENERATING PLANT (VEGP)UNIT1CYCLE 19 CORE OPERATING LIMITS REPORT Version 1 February 2014 Westinghouse Non-ProprietaryClass3 APPENDIX A VOGTLE ELECTRIC GENERATINGPLANT(VEGP)
: Chairman, President&CEOMr.D.G.Bost,Executive VicePresident
UNIT1CYCLE 19 CORE OPERATING LIMITS REPORT (COLR)Version 1 February 2014 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 FEBRUARY 2014 1.0 CORE OPERATING LIMITS REPORTThisCore OperatingLimitsReport(COLR)forVEGPUnit1Cycle 19hasbeen prepared in accordancewiththerequirements ofTechnicalSpecification5.6.5.
&ChiefNuclearOfficerMr.T.E.Tynan,VicePresident
The TechnicalRequirementaffectedbythisreportislistedbelow:
-Vogtle1&2Mr.B.LIvey,VicePresident
13.1.1 SHUTDOWN MARGIN-MODES 1 and 2 The TechnicalSpecificationsaffectedbythisreportarelistedbelow:
-Regulatory AffairsMr.D.R.Madison,VicePresident
 
-FleetOperationsMr.B.J.Adams,VicePresident
====3.1.1 SHUTDOWN====
-EngineeringMr.S.C.Waldrup,Regulatory AffairsManager-VogtleRType:CVC7000U.S.NuclearRegulatory CommissionMr.V.M.McCree,RegionalAdministratorMr.R.E.Martin,NRR SeniorProjectManager-Vogtle1&2Mr.L.M.Cain,SeniorResidentInspector-Vogtle1&2 VogtleElectricGenerating PlantUnit1Cycle19CoreOperating LimitsReportEnclosure CoreOperating LimitsReport,VEGPUnit1Cycle19,Version1 VOGTLEELECTRICGENERATING PLANT(VEGP)UNIT1CYCLE 19COREOPERATING LIMITSREPORTVersion1February2014 Westinghouse Non-ProprietaryClass3APPENDIXAVOGTLEELECTRICGENERATINGPLANT(VEGP)
MARGIN-MODES3,4 and 5 3.1.3 Moderator Temperature Coefficient
UNIT1CYCLE19COREOPERATING LIMITSREPORT(COLR)Version1February2014 COREOPERATING LIMITSREPORT.VEGPUNIT1CYCLE19FEBRUARY20141.0COREOPERATING LIMITSREPORTThisCoreOperatingLimitsReport(COLR)forVEGPUnit1Cycle 19hasbeenpreparedinaccordancewiththerequirements ofTechnicalSpecification5.6.5.
 
TheTechnicalRequirementaffectedbythisreportislistedbelow:
====3.1.5 Shutdown====
13.1.1SHUTDOWNMARGIN-MODES1and2TheTechnicalSpecificationsaffectedbythisreportarelistedbelow:
Bank Insertion Limits 3.1.6 Control Bank Insertion Limits 3.2.1HeatFluxHotChannelFactor-Fq(Z)3.2.2 Nuclear Enthalpy Rise Hot Channnel Factor-f'^ah 3.2.3 Axial Flux Difference
3.1.1SHUTDOWNMARGIN-MODES3,4and53.1.3Moderator Temperature Coefficient 3.1.5ShutdownBankInsertion Limits3.1.6ControlBankInsertion Limits3.2.1HeatFluxHotChannelFactor
 
-Fq(Z)3.2.2NuclearEnthalpyRiseHotChannnelFactor-f'^ah3.2.3AxialFluxDifference 3.9.1BoronConcentration Page1of11 COREOPERATING LMITSREPORT.VEGPUNIT1CYCLE19FEBRUARY20142.0OPERATING LIMITSThecycle-specificparameterlimitsforthespecificationslistedinSection1.0arepresentedinthefollowingsubsections.TheselimitshavebeendevelopedusingNRC-approvedmethodologiesincludingthosespecifiedin TechnicalSpecification5.6.5.
====3.9.1 Boron====
2.1SHUTDOWNMARGIN-MODES1and2 (Technical Requirement 13.1.1)2.1.1TheSHUTDOWNMARGINshallbegreaterthanorequalto 1.30percentAk/k.2.2SHUTDOWNMARGIN-MODES3.4and5(Specification 3.1.n2.2.1TheSHUTDOWNMARGINshallbegreaterthanorequaltothelimitsshowninFigures 1and2.2.3Moderator Temperature Coefficient (Specification 3.1.3)2.3.1TheModerator Temperature Coefficient (MTC)limitsare:
Concentration Page 1 of 11 CORE OPERATING LMITS REPORT.VEGP UNIT 1 CYCLE 19 FEBRUARY 2014 2.0 OPERATING LIMITSThecycle-specificparameterlimitsforthespecificationslistedinSection1.0arepresentedinthefollowingsubsections.TheselimitshavebeendevelopedusingNRC-approvedmethodologiesincludingthosespecifiedin TechnicalSpecification5.6.5.
TheBOL/ARO/HZP-MTC shallbelesspositivethan+0.7x10"^Ak/k/°Fforpowerlevelsupto70%RTPwithalinearrampto0 Ak/k/°Fat100%RTP.TheEOL/ARO/RTP-MTC shallbelessnegativethan-5.50x10"^Ak/k/°F.'
 
2.3.2TheMTCSurveillance limitsare;The300ppm/ARO/RTP-MTCshouldbelessnegativethanorequalto
===2.1 SHUTDOWN===
-4.75X10-"Ak/k/°F.'
MARGIN-MODES1and2 (Technical Requirement 13.1.1)2.1.1TheSHUTDOWNMARGINshallbegreaterthanorequalto 1.30 percent Ak/k.2.2 SHUTDOWN MARGIN-MODES 3.4 and 5 (Specification 3.1.n 2.2.1 The SHUTDOWNMARGINshallbegreaterthanorequaltothelimitsshowninFigures 1 and 2.2.3 Moderator Temperature Coefficient (Specification 3.1.3)2.3.1 The Moderator Temperature Coefficient (MTC)limitsare:
The60ppm/ARO/RTP-MTC shouldbelessnegativethan-5.35x10"^Ak/k/&deg;F.'where:BOLstandsfor Beginning ofCycleLife AROstandsforAllRodsOutHZPstandsforHotZeroTHERMALPOWEREOLstandsforEnd ofCycleLife RTPstandsforRATEDTHERMALPOWER'Applicable forfull-power T-average of584.1to587.1&deg;F,Page2of11 COREOPERATING LIMITSREPORT.VEGPUNIT1CYCLE19FEBRUARY2014ShutdownBankInsertionLimits(Specification3.1.5) 2.4.1Theshutdownbanksshallbe withdrawntoapositiongreaterthanorequalto225steps.ControlBankInsertionLimits (Specification 3.1.6)2.5.1Thecontrolrodbanksshallbelimitedin physicalinsertionasshownin Figure3.HeatFluxHotChannelFactor-Fn/Zt(Specification 3.2.1)2.6.1Fo(Z)<-5K(Z)for?>0.5Fo(Z)<-^K(Z)forP<0.5where:P=-THERMALPOWERRATEDTHERMALPOWER2.6.2F^'"'=2.502.6.3K(Z)isprovidedin Figure4.KiZ)2.6.4Fo(Z)<-2IlJ.forP>0.5P-W{Z)F^"^-KCZ)Fo(Z)<-^forP50.50.5-W^Z)2.6.5W(Z)valuesareprovidedinTable2.2.6.6TheFq(Z)penaltyfactorsareprovidedinTable1.Page3of11 COREOPERATTNG LIMITSREPORT.VEGPUNIT1CYCT.F.192.7NuclearEnthalpyRiseHotChannelFactor-F(Specification3.2.2) 2.7.1SFi"(I+where:P=THERMALPOWERRATEDTHERMALPOWER2.7.2F^'-=\.65 2.1.3PF^=0.3FEBRUARY2014AxialFlux Difference (Specification 3.2.3)2.8.1TheAxialFluxDifference (AFD)Acceptable OperationLimitsare providedinFigure5.
The BOL/ARO/HZP-MTC shall be less positive than+0.7 x 10"^Ak/k/&deg;F for powerlevelsupto70%RTPwithalinearrampto0 Ak/k/&deg;F at 100%RTP.The EOL/ARO/RTP-MTC shall be less negative than-5.50 x 10"^Ak/k/&deg;F.'2.3.2 The MTC Surveillance limits are;The300ppm/ARO/RTP-MTCshouldbelessnegativethanorequalto
BoronConcentration (Specification 3.9.1)2.9.1Theboronconcentration shallbegreaterthanorequalto1880ppm.^^Thisconcentrationboundsthecondition ofkeii^0.95(allrodsinlessthemostreactiverod)andsubcriticality(allrodsout)overtheentirecycle.This concentrationincludesadditionalboronto addressuncertainties andB'depletion.
-4.75 X 10-" Ak/k/&deg;F.'The 60 ppm/ARO/RTP-MTC should be less negative than-5.35 x 10"^Ak/k/&deg;F.'where:BOLstandsfor Beginning ofCycleLife ARO stands for All Rods Out HZP stands for Hot Zero THERMAL POWEREOLstandsforEnd ofCycleLife RTP stands for RATED THERMAL POWER'Applicable for full-power T-average of 584.1 to 587.1&deg;F, Page2of11 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 FEBRUARY 2014 ShutdownBankInsertionLimits(Specification3.1.5) 2.4.1 The shutdownbanksshallbe withdrawntoapositiongreaterthanorequalto225steps.ControlBankInsertionLimits (Specification 3.1.6)2.5.1The controlrodbanksshallbelimitedin physical insertionasshownin Figure 3.HeatFluxHotChannelFactor-Fn/Zt (Specification 3.2.1)2.6.1 Fo(Z)<-5 K(Z)for?>0.5 Fo(Z)<-^K(Z)for P<0.5 where:P=-THERMAL POWER RATED THERMAL POWER 2.6.2 F^'"'=2.502.6.3K(Z)isprovidedin Figure 4.KiZ)2.6.4 Fo(Z)<-2 IlJ.for P>0.5P-W{Z)F^"^-KCZ)Fo(Z)<-^forP50.50.5-W^Z)2.6.5W(Z)valuesareprovidedinTable2.2.6.6The Fq(Z)penalty factors are provided in Table 1.Page 3 of 11 CORE OPERATTNG LIMITS REPORT.VEGP UNIT 1 CYCT.F.192.7NuclearEnthalpyRiseHotChannelFactor-F(Specification3.2.2) 2.7.1 S Fi"(I+where:P=THERMAL POWER RATED THERMAL POWER 2.7.2 F^'-=\.65 2.1.3 PF^=0.3 FEBRUARY 2014AxialFlux Difference (Specification 3.2.3)2.8.1 The Axial Flux Difference (AFD)Acceptable OperationLimitsare providedinFigure5.
Page4of11 COREOPERATING LIMITSREPORT.VEGPUNIT1CYCLE19Table1Fq(Z)penaltyfactorCycleBumup(MWD/MTU)Fq(Z)PenallyFactor 1.03481.03911.04171.04231.04101.03661.03081.02481.02001.02001.02041.02621.02611.02441.02141.0200FEBRUARY2014Notes:1.ThePenalty Factor,tobeappliedtoFq(Z)in accordancewithSR3.2.1.2,isthe maximumfactorbywhichFq(Z)isexpectedtoincreaseovera39EFPDinterval(surveillance intervalof31EFPDplusthemaximum allowableextensionnottoexceed25%
Boron Concentration (Specification 3.9.1)2.9.1 The boron concentration shall be greater than or equal to 1880 ppm.^^Thisconcentrationboundsthecondition of keii^0.95(allrodsinlessthemostreactiverod)andsubcriticality(allrodsout)overtheentirecycle.This concentrationincludesadditionalboronto address uncertainties and B'depletion.
ofthesurveillanceintervalperSR3.0.2)startingfromthebumupatwhichtheFq(Z)was determined.2.Linearinterpolationisadequateforintermediatecyclebumups.3.Forallcycle burnupsoutsidetherangeofthetable,a penallyfactorof1.020shallbeused.Pagesof11 COREOPERATING LIMITSREPORT.VEGPUNIT1CYCLE19AxialPoint57-61Elevation (feet)12.072-11.267 11.06610.86510.66410.46210.26110.0609.8599.6589,4569.2559.0548.8538.6528.4508.2498.0487.8477.6467.4447.2437.0426.8416.6406.4386.2376.0365.8355.6345.4325.2315.0304.8294.6284.4264.2254.0243.8233.6223.4203.219 3.0182.8172.6162.4142.2132.0121.8111.6101.4081.2071.0060.805-0.000 Table2RAOCwrz)150MWD/MTU1.00001.3172131621.30181.28081.26151.24671.25031.2444L23731.22781.21681.20201.18931.19001.18891.19181.19401.19351.19141.18671.18021.17241.16331.15291.14521.14011.13441.13211.13091.13171.13861.14771.15611.16401.17101.17701.18261.18721.19251.19851.20571.21901.23371.24761.26161.27551.28931.30241.31491.32691.33801.00003000MWD/MTU1.00001.34951.34401.33501.31671.29121.26831.24311.21301.19791.18931.17631.166Z1.16701.17241.17611.17831.17801.17611.1728I.I6741.16041.15231.14591.13931.13261.12791.12521.12251.1258 1.13781.14841.15871.16831.17751.18561.19301.19941.20651.21591.22411.23771.25621.27941.30581.33281.35951.38581.41051.43361.45501.4742l.OOOOTopandBottom5PointsExcludedperTechnical Specification B3.2.1.12000MWD/MTU1.00001.32791.32441.3164I.30S11.29191.27751.26141.24381.23841,2286 1.21651.20921.21411.22301.22901.23321.23441.23361.23151.22591.21781.20831.19881.18961.18011.16961.16081.15601.15901.16431.17061.17531.17901.18151.18291.18331.18221.1795 1.17631.1722I.I7651.18891.20201.21491.22791.23991.25141.26271.27371.28431.29431.0000FEBRUARY20420000MWD/MTU1.00001.27281.26651.25611.24381.22941.21891.2150IJi0961.21441.22721.23591.23971.24261.24381.25001.25911.26701.28001.28951.29441.29501.29311.28901.28191.27191.25961.24781.24001.23491.23491.23481.23441.23331.23021.22541.21911.21001.19851.18611.17651.17761.18901.20191.21471.22751.23861.24911.26011.27141.28281.2945l.OOOOTheseW(Z)valuesareconsistentwithFigure5,andarevalidover tlieHFPTavgtemperaturerangefrom 584.1to587.1&deg;F.Page6of11 COREOPERATING LIMITSREPORT.VEGPUNIT1CYCLE19FEBRUARY2014FIGURE1REQUIREDSHUTDOWNMARGINFORMODES3AND4(FOURLOOPSFILLEDANDVENTEDANDATLEASTONEREACTORCOOLANTPUMPRUNNING)"S3-&deg;O2.0gmACCEPTABLE OPERATING REGION(2400,3.lb)IREQUIREDSHUTDOWNMARGIN(lioo,i.2b)UNACCEPTABLE OPERATING REGION(65d,1.3^0)50010001500RCSBORONCONCENTRATION (ppm)Page?of11 ACCEPTABLE OPERATING REGIONREQUIREDSHUTDOWNMARGINRCSBO1250,a.8B)0200N(ppm)(2$00Li.9phPage8of COREOPERATING LIMITSREPORT.VEGPUNIT1CYCLE19FEBRUARY2014FIGURESRODBANKINSERTION LIMITSVERSUS%OFRATEDTHERMALPOWER(FullyWithdrawn
Page 4 of 11 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 Table 1 Fq(Z)penalty factor Cycle Bumup (MWD/MTU)Fq(Z)PenallyFactor 1.0348 1.0391 1.0417 1.0423 1.0410 1.0366 1.0308 1.0248 1.0200 1.0200 1.0204 1.0262 1.0261 1.0244 1.0214 1.0200 FEBRUARY 2014 Notes:1.ThePenalty Factor,tobe appliedtoFq(Z)in accordancewithSR3.2.1.2,isthe maximum factor by which Fq(Z)is expected to increase overa39 EFPD interval (surveillance interval of 31 EFPD plusthemaximum allowableextensionnottoexceed25%
)S180111h160mS<S140O120HHWg100<<80iiisaiaiaiyiigBSgS^^S SSS'Se'SSSSSSSSSSSSSSSSSSSI
of the surveillanceintervalperSR3.0.2)startingfromthebumupatwhichtheFq(Z)was determined.2.Linearinterpolationisadequateforintermediatecyclebumups.3.Forallcycle burnupsoutsidetherangeofthetable,a penallyfactorof 1.020shallbe used.Pages of 11 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 Axial Point 57-61 Elevation (feet)12.072-11.267 11.066 10.865 10.664 10.462 10.261 10.060 9.859 9.658 9,456 9.255 9.054 8.853 8.652 8.450 8.249 8.048 7.847 7.646 7.444 7.243 7.042 6.841 6.640 6.438 6.237 6.036 5.835 5.634 5.432 5.231 5.030 4.829 4.628 4.426 4.225 4.024 3.823 3.622 3.420 3.219 3.018 2.817 2.616 2.414 2.213 2.012 1.811 1.610 1.408 1.207 1.006 0.805-0.000 Table 2 RAOC wrz)150 MWD/MTU 1.0000 1.3172 13162 1.3018 1.2808 1.2615 1.2467 1.2503 1.2444 L2373 1.2278 1.2168 1.2020 1.1893 1.1900 1.1889 1.1918 1.1940 1.1935 1.1914 1.1867 1.1802 1.1724 1.1633 1.1529 1.1452 1.1401 1.1344 1.1321 1.1309 1.1317 1.1386 1.1477 1.1561 1.1640 1.1710 1.1770 1.1826 1.1872 1.1925 1.1985 1.2057 1.2190 1.2337 1.2476 1.2616 1.2755 1.2893 1.3024 1.3149 1.3269 1.3380 1.0000 3000 MWD/MTU 1.0000 1.3495 1.3440 1.3350 1.3167 1.2912 1.2683 1.2431 1.2130 1.1979 1.1893 1.1763 1.166Z 1.1670 1.1724 1.1761 1.1783 1.1780 1.1761 1.1728 I.I674 1.1604 1.1523 1.1459 1.1393 1.1326 1.1279 1.1252 1.1225 1.1258 1.1378 1.1484 1.1587 1.1683 1.1775 1.1856 1.1930 1.1994 1.2065 1.2159 1.2241 1.2377 1.2562 1.2794 1.3058 1.3328 1.3595 1.3858 1.4105 1.4336 1.4550 1.4742 l.OOOO Top and Bottom 5 Points Excluded per Technical Specification B3.2.1.12000 MWD/MTU 1.0000 1.3279 1.3244 1.3164 I.30S1 1.2919 1.2775 1.2614 1.2438 1.2384 1,2286 1.2165 1.2092 1.2141 1.2230 1.2290 1.2332 1.2344 1.2336 1.2315 1.2259 1.2178 1.2083 1.1988 1.1896 1.1801 1.1696 1.1608 1.1560 1.1590 1.1643 1.1706 1.1753 1.1790 1.1815 1.1829 1.1833 1.1822 1.1795 1.1763 1.1722 I.I765 1.1889 1.2020 1.2149 1.2279 1.2399 1.2514 1.2627 1.2737 1.2843 1.2943 1.0000 FEBRUARY 20 4 20000 MWD/MTU 1.0000 1.2728 1.2665 1.2561 1.2438 1.2294 1.2189 1.2150 IJi096 1.2144 1.2272 1.2359 1.2397 1.2426 1.2438 1.2500 1.2591 1.2670 1.2800 1.2895 1.2944 1.2950 1.2931 1.2890 1.2819 1.2719 1.2596 1.2478 1.2400 1.2349 1.2349 1.2348 1.2344 1.2333 1.2302 1.2254 1.2191 1.2100 1.1985 1.1861 1.1765 1.1776 1.1890 1.2019 1.2147 1.2275 1.2386 1.2491 1.2601 1.2714 1.2828 1.2945 l.OOOOTheseW(Z)valuesareconsistentwithFigure5,andarevalidover tlie HFP Tavg temperaturerangefrom 584.1 to 587.1&deg;F.Page 6 of 11 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 FEBRUARY 2014 FIGURE 1 REQUIRED SHUTDOWN MARGIN FOR MODES3AND4 (FOUR LOOPS FILLED AND VENTEDANDAT LEAST ONE REACTOR COOLANT PUMP RUNNING)"S 3-&deg;O 2.0 g m ACCEPTABLE OPERATING REGION (2400, 3.lb)I REQUIRED SHUTDOWN MARGIN (lioo, i.2b)UNACCEPTABLE OPERATING REGION (65d, 1.3^0)50010001500RCSBORON CONCENTRATION (ppm)Page?of 11 ACCEPTABLE OPERATING REGION REQUIRED SHUTDOWN MARGIN RCS BO 1250, a.8B)0 200 N (ppm)(2$00L i.9ph Page 8 of CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 FEBRUARY 2014 FIGURES ROD BANK INSERTION LIMITS VERSUS%OF RATED THERMAL POWER (Fully Withdrawn)S 180 111 h 160 m S<S 140 O 120 H H W g 100<<80iiisaiaiaiyiigBSgS^^S SSS'Se'SSSSSSSSSSSSSSSSSSSI
!i3:sBwmmmumuutS3 BaianmHHHB
!i3: sB wmmmumuut S3 BaianmHHHB
>0304050607080POWER(%ofRatedThermalPower)*Fullywithdrawn shallbethecondition wherecontrolrodsareatapositionwithintheintervalS225and<231stepswithdrawn.
>0 30 40 50 60 70 80POWER(%of Rated Thermal Power)*Fully withdrawn shall be the condition where control rods areata position within the interval S225and<231 steps withdrawn.
NOTE:TheRodBank Insertion Limitsarebasedonthe controlbankwithdrawal sequenceA,B,C,Dandacontrol banktip-to-tip distanceof115steps.Page9of11 COREOPERATING LIMITSREPORT.VEGPUNIT1CYCLE19oO0.6FEBRUARY2014FIGURE4K(Z)-NORMALIZEDFq(Z)ASAFUNCTIONOFCOREHEIGHTFQ=2.50COREHT.K(Z)0.001.006.001.0012.0.92546COREHEIGHT(feet)Page10of11 COREOPERATING LIMITSREPORT.VEGPUNIT1CYCLE19FEBRUARY2014FIGURE5AXIALFLUXDIFFERENCE LIMITSASAFUNCTIONOF%RATEDTHERMALPOWERFORRAOCrt80<u^70dP50(+10,100)UNACCBPTMLE(-30,50)-40-30-20-100102030AXIALFLUXDIFFERENCE (percentAl)PageIIOfII}}
NOTE:TheRodBank Insertion Limitsarebasedonthe control bank withdrawal sequence A, B,C,Dandacontrol bank tip-to-tip distance of 115 steps.Page 9 of 11 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 o O 0.6 FEBRUARY 2014 FIGURE 4K(Z)-NORMALIZEDFq(Z)ASA FUNCTION OF CORE HEIGHT FQ=2.50 CORE HT.K(Z)0.00 1.00 6.00 1.00 12.0.925 4 6 CORE HEIGHT (feet)Page 10 of 11 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 FEBRUARY 2014 FIGURE 5 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF%RATED THERMAL POWER FORRAOC rt 80<u^70 dP 50 (+10, 100)UNACCBPTMLE(-30, 50)-40-30-20-10 0 10 20 30 AXIAL FLUX DIFFERENCE (percent Al)Page II Of II}}

Latest revision as of 12:59, 17 March 2019

Cycle 19 Core Operating Limits Report
ML14133A677
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 05/13/2014
From: Pierce C R
Southern Co, Southern Nuclear Operating Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
NL-14-0753
Download: ML14133A677 (16)


Text

Charles R.Pierce Regulatory Affairs Director MAY13 2014 Docket Nos.: 50-424 Southern Nuclear Operating Company, Inc.40 Inverness Center Parkway Post Office Box 1295 Birmingham,AL35201 Tel 205.992.7872 Fax 205,992.7601U.S.Nuclear Regulatory Commission ATTN: Document Control Desk Washington,D.C.20555-0001 Vogtle Electric Generating Plant Unit 1 Cycle 19 Core Operating Limits Report Ladies and Gentlemen:

NL-14-0753 In accordance with Technical Specification 5.6.5.d, Southern Nuclear Operating Company submits the enclosed Core Operating Limits Report(COLR)forVogtle Electric Generating Plant (VEGP)Unit1 Cycle 19, Version 1.This letter containsnoNRC commitments.Ifyou have any questions, please contact Ken McElroy at (205)992-7369.Respectfully submitted.

C.R.Pierce Regulatory Affairs Director CRP/GLS/

Enclosure:

Core Operating Limits Report,VEGPUnit1Cycle 19, Version 1 U.S.Nuclear Regulatory Commission NL-14-0753 Page 2 Southern Nuclear Operating CompanyMr.S.E.Kuczynski, Chairman, President&CEOMr.D.G.Bost, Executive Vice President&Chief Nuclear OfficerMr.T.E.Tynan, Vice President-Vogtle1&2Mr.B.L Ivey, Vice President-Regulatory AffairsMr.D.R.Madison, Vice President-Fleet OperationsMr.B.J.Adams, Vice President-EngineeringMr.S.C.Waldrup, Regulatory Affairs Manager-Vogtle RType: CVC7000 U.S.Nuclear Regulatory CommissionMr.V.M.McCree, Regional AdministratorMr.R.E.Martin,NRR Senior Project Manager-Vogtle 1&2Mr.L.M.Cain, Senior Resident Inspector-Vogtle1&2 Vogtle Electric Generating Plant Unit 1 Cycle 19 Core Operating Limits Report Enclosure Core Operating Limits Report, VEGP Unit 1 Cycle 19, Version 1 VOGTLE ELECTRIC GENERATING PLANT (VEGP)UNIT1CYCLE 19 CORE OPERATING LIMITS REPORT Version 1 February 2014 Westinghouse Non-ProprietaryClass3 APPENDIX A VOGTLE ELECTRIC GENERATINGPLANT(VEGP)

UNIT1CYCLE 19 CORE OPERATING LIMITS REPORT (COLR)Version 1 February 2014 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 FEBRUARY 2014 1.0 CORE OPERATING LIMITS REPORTThisCore OperatingLimitsReport(COLR)forVEGPUnit1Cycle 19hasbeen prepared in accordancewiththerequirements ofTechnicalSpecification5.6.5.

The TechnicalRequirementaffectedbythisreportislistedbelow:

13.1.1 SHUTDOWN MARGIN-MODES 1 and 2 The TechnicalSpecificationsaffectedbythisreportarelistedbelow:

3.1.1 SHUTDOWN

MARGIN-MODES3,4 and 5 3.1.3 Moderator Temperature Coefficient

3.1.5 Shutdown

Bank Insertion Limits 3.1.6 Control Bank Insertion Limits 3.2.1HeatFluxHotChannelFactor-Fq(Z)3.2.2 Nuclear Enthalpy Rise Hot Channnel Factor-f'^ah 3.2.3 Axial Flux Difference

3.9.1 Boron

Concentration Page 1 of 11 CORE OPERATING LMITS REPORT.VEGP UNIT 1 CYCLE 19 FEBRUARY 2014 2.0 OPERATING LIMITSThecycle-specificparameterlimitsforthespecificationslistedinSection1.0arepresentedinthefollowingsubsections.TheselimitshavebeendevelopedusingNRC-approvedmethodologiesincludingthosespecifiedin TechnicalSpecification5.6.5.

2.1 SHUTDOWN

MARGIN-MODES1and2 (Technical Requirement 13.1.1)2.1.1TheSHUTDOWNMARGINshallbegreaterthanorequalto 1.30 percent Ak/k.2.2 SHUTDOWN MARGIN-MODES 3.4 and 5 (Specification 3.1.n 2.2.1 The SHUTDOWNMARGINshallbegreaterthanorequaltothelimitsshowninFigures 1 and 2.2.3 Moderator Temperature Coefficient (Specification 3.1.3)2.3.1 The Moderator Temperature Coefficient (MTC)limitsare:

The BOL/ARO/HZP-MTC shall be less positive than+0.7 x 10"^Ak/k/°F for powerlevelsupto70%RTPwithalinearrampto0 Ak/k/°F at 100%RTP.The EOL/ARO/RTP-MTC shall be less negative than-5.50 x 10"^Ak/k/°F.'2.3.2 The MTC Surveillance limits are;The300ppm/ARO/RTP-MTCshouldbelessnegativethanorequalto

-4.75 X 10-" Ak/k/°F.'The 60 ppm/ARO/RTP-MTC should be less negative than-5.35 x 10"^Ak/k/°F.'where:BOLstandsfor Beginning ofCycleLife ARO stands for All Rods Out HZP stands for Hot Zero THERMAL POWEREOLstandsforEnd ofCycleLife RTP stands for RATED THERMAL POWER'Applicable for full-power T-average of 584.1 to 587.1°F, Page2of11 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 FEBRUARY 2014 ShutdownBankInsertionLimits(Specification3.1.5) 2.4.1 The shutdownbanksshallbe withdrawntoapositiongreaterthanorequalto225steps.ControlBankInsertionLimits (Specification 3.1.6)2.5.1The controlrodbanksshallbelimitedin physical insertionasshownin Figure 3.HeatFluxHotChannelFactor-Fn/Zt (Specification 3.2.1)2.6.1 Fo(Z)<-5 K(Z)for?>0.5 Fo(Z)<-^K(Z)for P<0.5 where:P=-THERMAL POWER RATED THERMAL POWER 2.6.2 F^'"'=2.502.6.3K(Z)isprovidedin Figure 4.KiZ)2.6.4 Fo(Z)<-2 IlJ.for P>0.5P-W{Z)F^"^-KCZ)Fo(Z)<-^forP50.50.5-W^Z)2.6.5W(Z)valuesareprovidedinTable2.2.6.6The Fq(Z)penalty factors are provided in Table 1.Page 3 of 11 CORE OPERATTNG LIMITS REPORT.VEGP UNIT 1 CYCT.F.192.7NuclearEnthalpyRiseHotChannelFactor-F(Specification3.2.2) 2.7.1 S Fi"(I+where:P=THERMAL POWER RATED THERMAL POWER 2.7.2 F^'-=\.65 2.1.3 PF^=0.3 FEBRUARY 2014AxialFlux Difference (Specification 3.2.3)2.8.1 The Axial Flux Difference (AFD)Acceptable OperationLimitsare providedinFigure5.

Boron Concentration (Specification 3.9.1)2.9.1 The boron concentration shall be greater than or equal to 1880 ppm.^^Thisconcentrationboundsthecondition of keii^0.95(allrodsinlessthemostreactiverod)andsubcriticality(allrodsout)overtheentirecycle.This concentrationincludesadditionalboronto address uncertainties and B'depletion.

Page 4 of 11 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 Table 1 Fq(Z)penalty factor Cycle Bumup (MWD/MTU)Fq(Z)PenallyFactor 1.0348 1.0391 1.0417 1.0423 1.0410 1.0366 1.0308 1.0248 1.0200 1.0200 1.0204 1.0262 1.0261 1.0244 1.0214 1.0200 FEBRUARY 2014 Notes:1.ThePenalty Factor,tobe appliedtoFq(Z)in accordancewithSR3.2.1.2,isthe maximum factor by which Fq(Z)is expected to increase overa39 EFPD interval (surveillance interval of 31 EFPD plusthemaximum allowableextensionnottoexceed25%

of the surveillanceintervalperSR3.0.2)startingfromthebumupatwhichtheFq(Z)was determined.2.Linearinterpolationisadequateforintermediatecyclebumups.3.Forallcycle burnupsoutsidetherangeofthetable,a penallyfactorof 1.020shallbe used.Pages of 11 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 Axial Point 57-61 Elevation (feet)12.072-11.267 11.066 10.865 10.664 10.462 10.261 10.060 9.859 9.658 9,456 9.255 9.054 8.853 8.652 8.450 8.249 8.048 7.847 7.646 7.444 7.243 7.042 6.841 6.640 6.438 6.237 6.036 5.835 5.634 5.432 5.231 5.030 4.829 4.628 4.426 4.225 4.024 3.823 3.622 3.420 3.219 3.018 2.817 2.616 2.414 2.213 2.012 1.811 1.610 1.408 1.207 1.006 0.805-0.000 Table 2 RAOC wrz)150 MWD/MTU 1.0000 1.3172 13162 1.3018 1.2808 1.2615 1.2467 1.2503 1.2444 L2373 1.2278 1.2168 1.2020 1.1893 1.1900 1.1889 1.1918 1.1940 1.1935 1.1914 1.1867 1.1802 1.1724 1.1633 1.1529 1.1452 1.1401 1.1344 1.1321 1.1309 1.1317 1.1386 1.1477 1.1561 1.1640 1.1710 1.1770 1.1826 1.1872 1.1925 1.1985 1.2057 1.2190 1.2337 1.2476 1.2616 1.2755 1.2893 1.3024 1.3149 1.3269 1.3380 1.0000 3000 MWD/MTU 1.0000 1.3495 1.3440 1.3350 1.3167 1.2912 1.2683 1.2431 1.2130 1.1979 1.1893 1.1763 1.166Z 1.1670 1.1724 1.1761 1.1783 1.1780 1.1761 1.1728 I.I674 1.1604 1.1523 1.1459 1.1393 1.1326 1.1279 1.1252 1.1225 1.1258 1.1378 1.1484 1.1587 1.1683 1.1775 1.1856 1.1930 1.1994 1.2065 1.2159 1.2241 1.2377 1.2562 1.2794 1.3058 1.3328 1.3595 1.3858 1.4105 1.4336 1.4550 1.4742 l.OOOO Top and Bottom 5 Points Excluded per Technical Specification B3.2.1.12000 MWD/MTU 1.0000 1.3279 1.3244 1.3164 I.30S1 1.2919 1.2775 1.2614 1.2438 1.2384 1,2286 1.2165 1.2092 1.2141 1.2230 1.2290 1.2332 1.2344 1.2336 1.2315 1.2259 1.2178 1.2083 1.1988 1.1896 1.1801 1.1696 1.1608 1.1560 1.1590 1.1643 1.1706 1.1753 1.1790 1.1815 1.1829 1.1833 1.1822 1.1795 1.1763 1.1722 I.I765 1.1889 1.2020 1.2149 1.2279 1.2399 1.2514 1.2627 1.2737 1.2843 1.2943 1.0000 FEBRUARY 20 4 20000 MWD/MTU 1.0000 1.2728 1.2665 1.2561 1.2438 1.2294 1.2189 1.2150 IJi096 1.2144 1.2272 1.2359 1.2397 1.2426 1.2438 1.2500 1.2591 1.2670 1.2800 1.2895 1.2944 1.2950 1.2931 1.2890 1.2819 1.2719 1.2596 1.2478 1.2400 1.2349 1.2349 1.2348 1.2344 1.2333 1.2302 1.2254 1.2191 1.2100 1.1985 1.1861 1.1765 1.1776 1.1890 1.2019 1.2147 1.2275 1.2386 1.2491 1.2601 1.2714 1.2828 1.2945 l.OOOOTheseW(Z)valuesareconsistentwithFigure5,andarevalidover tlie HFP Tavg temperaturerangefrom 584.1 to 587.1°F.Page 6 of 11 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 FEBRUARY 2014 FIGURE 1 REQUIRED SHUTDOWN MARGIN FOR MODES3AND4 (FOUR LOOPS FILLED AND VENTEDANDAT LEAST ONE REACTOR COOLANT PUMP RUNNING)"S 3-°O 2.0 g m ACCEPTABLE OPERATING REGION (2400, 3.lb)I REQUIRED SHUTDOWN MARGIN (lioo, i.2b)UNACCEPTABLE OPERATING REGION (65d, 1.3^0)50010001500RCSBORON CONCENTRATION (ppm)Page?of 11 ACCEPTABLE OPERATING REGION REQUIRED SHUTDOWN MARGIN RCS BO 1250, a.8B)0 200 N (ppm)(2$00L i.9ph Page 8 of CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 FEBRUARY 2014 FIGURES ROD BANK INSERTION LIMITS VERSUS%OF RATED THERMAL POWER (Fully Withdrawn)S 180 111 h 160 m S<S 140 O 120 H H W g 100<<80iiisaiaiaiyiigBSgS^^S SSS'Se'SSSSSSSSSSSSSSSSSSSI

!i3: sB wmmmumuut S3 BaianmHHHB

>0 30 40 50 60 70 80POWER(%of Rated Thermal Power)*Fully withdrawn shall be the condition where control rods areata position within the interval S225and<231 steps withdrawn.

NOTE:TheRodBank Insertion Limitsarebasedonthe control bank withdrawal sequence A, B,C,Dandacontrol bank tip-to-tip distance of 115 steps.Page 9 of 11 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 o O 0.6 FEBRUARY 2014 FIGURE 4K(Z)-NORMALIZEDFq(Z)ASA FUNCTION OF CORE HEIGHT FQ=2.50 CORE HT.K(Z)0.00 1.00 6.00 1.00 12.0.925 4 6 CORE HEIGHT (feet)Page 10 of 11 CORE OPERATING LIMITS REPORT.VEGP UNIT 1 CYCLE 19 FEBRUARY 2014 FIGURE 5 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF%RATED THERMAL POWER FORRAOC rt 80<u^70 dP 50 (+10, 100)UNACCBPTMLE(-30, 50)-40-30-20-10 0 10 20 30 AXIAL FLUX DIFFERENCE (percent Al)Page II Of II