ML20115J000

Cycle 11 Summary of Startup Testing

ML20115J000
Person / Time
Site:	Calvert Cliffs
Issue date:	09/23/1992
From:	BALTIMORE GAS & ELECTRIC CO.
To:
Shared Package
ML20115H998	List: ML20115H996 ML20115J000
References
NUDOCS 9210280003
Download: ML20115J000 (10)

Text

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BALTIM0RE GAS AND ELECTRIC COMPANY CALVERT CLIFFS NUCLEAR POWER PLANT UNIT 1 <

Docket No. 50-317 License No. DPR-53 UNIT 1 CYCLE 11

SUMMARY

OF STARTUP TESTING i

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I 9210200003 DR 921023 p ADOCK 05000317- 3 PDR.  ;

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. UNIT-1 CYCLE 11

SUMMARY

OF STARTUP TESTING -

PAGE 2 0F 10 ID11Qdyction

-The Unit 1 Cycle 11 core is designed for a Full Power Operation Burnup of-18,700 to 20,600 MWD /MTU. The core loading is detailed in Table 1, and the -

core loading pattern is shown in Figure 1. The initial startup for Cycle 11  ;

began with Control Element Assembly (CEA) and Control Element Drive Mechanism l (CEDM) testing on August 11, 1992. Initial criticality for Cycle 11 was  ;

declared at 05:00 on August 16, 1992. Startup testing was concluded with the l variable Tavg test to determine Moderator Temperature Coefficient (MTC) on. i September 9, 1992.

The overall startup testing evolution was conducted in two phases. The first phase was controlled by Post Startup Test Procedure 2 (PSTP-2), Initial Approach to Criticality and Low Power Physics Testing Procedure. -The second phase of testing was controlled by PSTP-3, Escalation to Power Test Procedure. 1 Tests performed under PSTP-2 included:

- CEA and CEDM Testing Reactor Coolant System (RCS) Flow Verification CEA Insertion and Partial CEA Symmetry Check Critical Boron t icentration (CBC) Measurements Isothermal Temperature Coefficient (ITC) Measurement CEA Group Worth Measurements Tests performed under PSTP-3 included:

Radial Power Distribution Comparisons-at 30, 60, 85, and 97% Rated Thermal Power (RTP)

Core Symmetry Power Distribution Measurements at 30, 60, 85, and 97% RTP ITC and Power Coefficient (PC) Measurement at 97% RTP (Variable Tavg Test)

CBC Measurement at 97% RTP i

__ _ _ _ - - _ _ _ _ _ _ _ _ _ _ _ ___________.___________._____.__m. _ _ _ _ _ _ _ _ . - _ _ _ _ _ . . _ . _ . _ _ _ _ _ _ _ _ . . _ _ _ _ _ . .

4.

UNIT-1 CYCL.E 11

SUMMARY

OF STARTUP TESTING F 'iE 3 0F 10 Test Criteria-For the individual tests in the startup evolution, the following A ceptance and Review Criteria were applied (Reference 1):

PARAMETER ACCEPTANCE CRITERIA REVIEW CRITERIA CEA Drop Time less than 3.1 seconds to less than-2.95 seconds 90% insertion to 90% insertion CEA Symmetry Check None less than 10% Tilt RCS Flow Verification

1) Core dP 6.8 - 17.0 psi 6.0 - 18.2 psi

2) Projected 395,943 - 405,399 gpm 370,000 - 407,200 gpm HFP Flow CBC 100_ ppm of predicted i 50 ppm of predicted CEA Worth

1) Group Greater of i 15% or Greater of 15% or 0.1% delta rho of 0.1% delta rho of predicted predicted

2) Total i 10% of predicted 10% of predicted ITC, at 0% and 97% Within limits of MTC 0.3 x 10-4 Technical Specification delta rho /*F of predicted PC, at 97% 0.3 x 10'4 0.2 x 10'4 delta rho /% delta rho /%

of predicted of predicted Power Distributions Box Powers (Interior /

Peripheral)

1) 30% RTP Fx T, and FrT within 15% / 20%

TeEhnical Specification of predicted (Tech. Spec.) limits-

2) 60, 85, and F TF rT, and T within i-10% / i 15%

97% RTP TeEh. Spec.limiks of predicted

UNIT 1 CYCLE 11

SUMMARY

OF STARTUP TESTING PAGE 4 0F 10 PARAMETER ACCEPTANCE CRITERIA REVIEW CRIUlla Core Symmetry Evaluation

1) Box Powers Same as Power Same as Power Distribution Distribution

2) Tilt a) 30% RTP None 5%

b) 60, 85, and i 3% 2%

97% RTP

3) Symmetric ICI None i 10%

Box Powers Test Results Table 2 summarizes startup test results, while individual . tests are discussed below.

CEA and CEDM Testing CEA and CEDM Testing was performed prior to initial Cycle 11 criticality with all four Reactor Coolant Pumps (RCPs) running and RCS temperature at nominal Hot Zero Power (HZP) conditions (532*F). The operability of the CEDMs was verified by checking the associated light operations for each CEDM. This was accomplished with only a few minor problems noted. These minor problerr were corrected with subsequent re-verification of the operability of the affected CEDM.

The CEA drop times were measured-from the full-out position to 90% and 100%

insertion. All CEAs met both the listed Acceptance and Review Criteria. The slowest CEA ta 90% insertion was Group 5 CEA # 37, with a 90% insertion time of 2.45 seconds.

CEA Insertion and Partial CEA Symmetry Cnecks The CEA Insertion Check was performed to ensure that each single CEA was '

coupled to its respective drive mechanism. This was accomplished by inserting the CEA and observing a reactivity chnge. InserLons ranged from as low as 32 to as much as 65 inches, depending on the worth of the CEA. For each-single CEA, a reactivity change was seen upon insertion.

The Partial Symmetry Check was perfor- " inserting each dual CEA in Shutdown Group C individually. For e sertion, the reactivity change was ,

calculated. The magnituda of the reat .ity change was calculated for each l dual CEA,- and a tilt was calculated based on these reactivity changes. For

U1111 1 CYCLE !!

SUtMARY Of STAR 10P TESTING PAGE 5 Of 10 each symmetric set, the tnagnitude of reactivity change for each dual CEA was consistent. In addition, the largest tilt calculated was 1 0.074 (7.4%),

which was within the Review Criteria of i 10%. ,

RCS Flow Verification The RCS flow was verlf ted at Hot Standby conditions with all four kCPs running. This was done by comparing RCP delta pressures (dPs) and Core dP to values from past cycle operation, in addition, a projected llot full Power (HfP) value for RCS flow was determined. The values for RCP dPs compared well with past cycles. .The core dP was 11.17 psi, compared to 11.5 psi for the previous cycle. This value was well within Acceptance and Review Criteria.

The )rojected HfP RCS Flow was 401,601 gpm, based on total RCP dP. This value met )oth Acceptance and Review Criteria.

Critical Boron Concentration (CBC), ilZP, All Rods Out (ARO)

The CBC was determined by obtaining from Chemistry the results of a RCS boron grab sample taken at conditions near AR0 and adjusting it to an ARO condition.

The ARO CBC was determined to be 1745 ppm, compared to a predicted value of 1717 ppm. This value was within both Acceptance and Review Criteria.

Isothermal Temperature Coefficient (lTC), ilZP ARO The ITC was determined by decreasing and increasing RCS temperature while measuring the associated reactivity change. T/,e reasured reactivity was divided by the tem)erature change to arrive at c vale for the ITC. The calculated ITC witi Group 5 at approximately '~5 i m .3 withdrar was +0.356 x 10 delta rho /*f. The predicted value was 0 7 s Mr delta r b '*F. The d

prediction, when corrected for actual test corMtions, was 10.3 10 delta rho /*F. The measured value met both Acceptance riteria and Rt Criteria.

CEA Group Worth Heasurement 1he worth of each Regulating CEA was determined using the boration/ dilution method. Each individual measured group worth met the Acceptance and Review Criteria, as did the total measured group worth for all Regulating CEAs.

Radial Power Distribution Comparisons The Radial Power Distribution Comparisons were performed at 30, 60, 85, and 97% RTP testing plateaus. The power distribution calculated by CECOR at a-givenpowerplateauwascomparedtotheROCSpredictedpowerdirtyibution{or that power level. At each power plateau, the peaking factors, te and Fxy ,

and Tq were to mar M to their Tec1nica Specifications limits. In all cases, the peaking factors and Tq were within their respective limits. In addition, the comparison of Box Powers, both interior and peripheral, to predictee values from ROCS fell within both Acceptance and Review Criteria. At 30% RTP, the maximum difference between actual and predicted Box Power was 12.20%

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UNIT 1 CYCLE 11

SUMMARY

Of STAR 1UP TESTING PAGE 6 0F 10 (interior). At 60% R1P, the aaximum difference was 7.00% (interior), lhe maximum difference at 85% RIP was 7.40% (peripheral). and the maximum difference was 9.40% (peripheral) at 97% R1P.

Core Symmetry Power Distribution Measurements The Core Synnetry Evaluation for Box Powers met both the Acceptance and Review Criteria as described above for the Radial Power Distribution Comparisons.

The evaluation of core tilt at each power icyc1 plateau indicated that the applicable Acceptance and Review Criteria were met. The maximum tilt at 30%

RTP was 0.0123. At 60% RTP, the maximum tilt was 0.0096. At 85% RTP, the maximum tilt was 0.0098, and the maximum tilt at 97% RTP was 0.0093.

The final evaluation for Core Symmetry involved comparison of symmetric Incore Instrumentation (101) Box Powers. This evaluation was performed by comparing symmetric 101 Box Powers, summed over all axial detector levels, to predicted values as well as determining a tilt based on only that set of symmetric detectors, in all cases, the Review Criteria of i 10% was met.

ITC and Power coefficient (PC) Measurement The 11C and PC were measured at 97% RTP with Regulating Group 5 CEAs at approximately 105 inches withdrawn. These parameters were determined by k adjusting either moderator temperature or core power while adjusting turbine load to maintain the unaffected parameter a The final measured value for the ITC was 0.401 x 10'pproximately constant.

delta rho /*f. This value riet Acceptance and Review Criteria when compared to a predicted value of 0.37 x 10 delta rho /af. The measured value for the PC was -1.012 x 10 delta rho /t. This value, when compared to a predicted value of 0.86 x 10 delta rho /t, met Acceptance and Review Criteria.

CBC Measurement at 97% RTP The CBC was determined by a Chemistry analysis of a RCS boron grab sampia at 97% RTP and Group 5 CEAs at approximately 105 inches withdrawn. The resulting CBC was 1265 ppm, which was 14 ppm lower than the predictrd CBC of 1279 ppm.

This result met both Acceptance and Review Criteria.

BliCLtKRi

1) Mr. G. C. Creel (BG&E) to USNRC, *Calvert Cliffs Nuciaar Power Plant, Unit 1; Docket No. 50-317, Request for Amendment, Unit 1 Eleventh Cycle License Amendment Request " Decemuer 10, 1991.

Prepared by 41 h eb; Date N23/M Reviewed by 7 /[ T iE Date 7 3![L

// c i 1

Utili 1 CYCLE 11

SUMMARY

OF STAR 1UP TESill4G N+--s PAGE 7 Of 10 l

W Ngure 1  !

l Unit 1 Cycle 11 Core Loading Pattern l

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21 1L001 ILO!! ILOO3 ! LOOS l t *1 &.. f ti e F1 l 20 il008 1004 1006 !N!W 1Ni,l5 IN120 1008 1,008 iL009 i w , , - c - w - , ,

19 ILO40 1N108 1W013 IN215 !N132 IW148 IW131 IN239 !W014 INil6 !LO37 Y l'! ,f9 f , 'P P 1*J fr I 'l L 19 1 19 L ,9 f 99 f 14 P ,t io ILO38 1003 1N121 IN234 iW125 100 iW101 IN217 !W101 IN244 IW150 1002 ILO34 s 19 . te f -ift t !P D-it ,f fP t - 19 ' iP t !A F-te f !B 14 fe '-,P 17 iL013 !N109 !Wil2 IN22,7 !W110 1W173 IWi!B !N219 IW124 inlil !N172 IN232 !W123 1Nii,0 ILO28

, , , , ,, , , , , , . .. ,, ,, ,, . .. . ,, < , . ,.,, o ,, e ,, t , tr to 1007 IW011 IN235 IW109 1N229 IW140 1N220 ll027 1N218 IW167  !,N??5 I,Wi!6 IN247 1015 1010 4 . 2 , . < ,.m , ,, em ,, m <m ,m em 2 .e em em , ,1 15 - iW002 1N240 !W174 !W159 !W160 !W134 !N165 1N205 !N!49 !Wl?0 !WiS3 !W143 !W163 !N246 1005 14 -

!LO22 !LO21 13 - "- IN104 IW103 IN233 IW155 1N212 IW104 1003 !N14 IN211 !W126 IN226 IW175 !N251 iW129 INit?

12 - !LO31 ILO05 11- "- IN113 !W138 IWil5 !N231 IL018 IN202 !W12 1K104 !W13 IN210 !L010 IN206 !W106 1:4128 INill 3o ,

ILO33 ILO29 9- "- IN103 !W166 IN213 !N!!9 IN223 !W169 !N208 !W11 IN201 IW108 IN204 IW176 IN214 !W130 IN!!9 u-e, ' ' " " ' '" " "' " " "' '" " '

ILO32 !LO36 7 "- 1003 1N236 1W122 iW15) !N2,09!W133 !N1,02!Wl20 1W154 !W1,68

!N!,44!W1,45!W1,35

, , , . , ,, o n, o, e 1cN2,411 0, ,04 0 1005 1W016 IN237 IWil3 1N228 IW139 !N221 ILO30 IN222 IW137 1N224 IWill 1N243 !M07 1009 .

Y f; ef vt iE 9t Dt ht t t 3t te Ft f -e DC tE Pf s 1L016 1N106 !Wl58 1N238 !N114 iW142 IW127 1N207 !W157 !W146 IW141 IN252 !W164 !N107 !L002

. .. .. ,, . . m ,m 1 . .. <. ,.s it r, , . .

4 !LO39 1001 ik'62 !N245 IW156 100 !Wl71 IN249 !N!61 !N248 IW105 1012 il020 W 4 Y 4 ?4 14 P4 h 4 t 4 J 0 C( f d I'4 O4 $'4 3 4 1L019 1N101 1001 IN242 iW136 !W152 !W147 IN216 iW0!2 IN112 ILO!2 Y1 1% M? P1 ir 3 t-3 91 C3 F-1 f1 P3 2 IL,O!4 IN006 1010 !N1,02IN!!4 1N1,18iW009 IN0ll ILO23

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Il035 !L001 !L015 iL004 f' , Wf 9 , ** t t i e 9 t $ a e L J G r t 6 c e A P H K H

I

' e UNIT 1 CYCLE 11

SUMMARY

OF STARTUP TESTING PAGE 8 0F 10 l

Table 1 Unit 1 Cycle 11 Core Loading >

NUMBER OF NUMBER OF BATCH SHIM RODS ASSEMBLIES ENRICHMENT ,

IN 0 12 4.20 w/o INX 4 20 4.20 w/o IN/ 8 52 4.20 w/o - 111 0 16 4.06 w/o IMX1 12 4 3.89 w/o IM* 12 76 4.07 w/o il 0 36 4.04 w/o 1K* 0 1 3.40 w/o 1

ANT Gadolinia bearing demonstration assemblies.

.]

. UNil 1 CYCLE 11 SUMP.ARY Of STARTUP TESTING-PAGE 9 Of 10 Tab') 2 Unit 1 Cycle 11 Startup Testing Results Page 1 of 2 TEST DESCRIPTION UNITS PREDICTED HEASURED CEA 90% INSERTION i

Slowest CEA to 90% insertion CEA # - --

37 seconds ---

2.45 INITIAL CRITICAllTY Boron Concentration ppm ----

1754 Group 5 Position inches ----

24 CRITICAL BORON CONCENTRATION ARO ppni 1717 1745 Groups 5. 4, 3, 2, and 1 in ppm 1373 1386 ilfP. Group 5 0 105" ppm 1219 1265 .

withdrawn (w/d)

IS0 THERMAL TEMPERATURE COErFICIENT 4

HZP, Group 5 0 105" w/d 40.27 40.356-HZP, Corrected for Test xx 10'4 10- deltadelta rho rho /*f

/*f 40.307 ----

Conditions 97%, Group 5 @ 105" w/d x 10'4 delta rho /*f -0.37 -0.401 POWER COEFFICIENT 97%, Group 5 0 105" w/d x 10-4 delta rho /t 0.86 -1.012 CEA GROUP WORTH 5 Group 5  % delta rho 0.35 0.330 Group 4  % delta rho 0.68 0.657 Group 3  % delta rho 0.79 0.772 Group 2  % delta rho 0.64 0.620 Group 1.  % delta rho 0.63 0.618 Total  % delta rho 3.09 2.997-

fi -

j UNIT 1 CYCLE 11 SUf! MARY Of STAR 10P'TESilNG PAGE 10 Of 10 Table 2 j Unit 1 Cycle 11 Startup Testing Results Pa9e 2 of 2 POWER DISTRIBUTION MEASUREMENTS P'4AKING FACTORS 30% RTP 60% RTP 85% RTP 97%RTP fxy T 1.6889 1.6642 1.6573 1.6396 T

Fr 1.6274 1.5883 1.5860 1.5990 Tq 0.0123 0.0096 0.0098 0.0093 BOX POWERS 30% RTP 60% RTP 85% RTP 97%RTP Interior 12.10% 7.00% 6.58% 6.71%

Peripheral 6.59% 6.64% 7.40% 9.04%

CORE SYMMETRY 30% RTP 60% RTP 85% RTP 97%RTP Tilt 1.23% 0.96% 0.98% 0.93%

Symmetric 2.30% 2.04% 2.28% 2.05%

Dox Powers

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