ML20094A154

Summary of Startup Testing for Cycle 6

ML20094A154
Person / Time
Site:	Calvert Cliffs
Issue date:	10/08/1984
From:	Lundvall A BALTIMORE GAS & ELECTRIC CO.
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NUDOCS 8411060291
Download: ML20094A154 (9)

Text

BALTIMORE GAS AND ELECTRIC COMPANY CALVERT CLIFFS NUCLEAR POWER PLANT UNIT 2 Docket No. 50-318 License No. DPR-69

SUMMARY

OF STARTUP TESTING FOR CYCLE SIX 8411060291 841008 PDR ADOCK 05000318 P pyg

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SUMMARY

OF STARTUP TESTING FOR CALVERT CIJFFS UNIT TWO CYCLE SIX I. The following tests were conducted for the startup of Calvert Cliffs Unit Two Cycle Six. All tests were conducted in a manner similar to Initial Startup (Reference 1).

A. CEDM/CEA Performance Test B. RCS Flow Verification C. Initial Criticality D. CEA Symmetry Check -

E. Critical Boron Concentration Measurements F. IsothermalTemperature and Power Coefficient Measurements G. Group Rod Worth Measurements II. Power Distribution Measurements II. The results of these tests and comparison with predictions are as follows:

A. The proper functioning of the CEDMs and CEA position indication was verified through insertion and withdrawal of CEAs. All CEAs reached a 90% insertion in less than 3.1 seconds at hot, full flow conditions. The slowest CEA (56) reached 90% insertion in 2.54 seconds.

l B. Reactor Coolant Flow was verified to be consistent with previous testing.

C. Initial criticality was achieved at 1615 ppm Boron with CEA Group 5 at 87.7" withdrawn. Predicted value was 1576 ppm Boron.

D. The CEA Symmetry Check verified that all CEAs were attached to their extension shafts. An evaluation of the quantitative reactivity change for dual CEAs yielded an azimuthal tilt estimate of 2.75%, well within the 10% acceptance limit.

E. Critical Boron Measurements - Table 1.

F. Isothermal Temperature and Powcr Coefficients - Table 2.

G. CEA Group Worth Measurements - Table 3. .

H. Power Distribution Measurements - Table 4, Figure 1 and 2.

III. All tests were within acceptance limits.

The ARO zero power Moderator Temperature Coefficient (MTC) was determined to be +.54 x 10-4 delta rho /0F. Although this was well within

the acceptance criteria (t.3 of prediction), it exceeded the Technical 1

Specification limit of +.5 x 10-4 delta rho / F. Special test exception 3.10.2 was invoked until Low Power Testing was complete, at which time CEAs were inserted to reduce MTC. Operational restrictions were placed on boron concentration to ensure that MTC remained ,within limits during power

escalation and early in the cycle until excess core reactivity was reduced.

l These actions were taken with concurrence from the fuel vendor and the Plant Safety Committee.

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TABLE 1 CRrrICAL BORON MEASUREMENTS Measured Predicted All Rods Out,5320F 1629 ppm 1590 t 50 ppm CEA Group's Inserted 5,4,3,2,1 1366 ppm 1336 t 50 ppm TABLE 2 ISOTHERMAL TEMPERATURE COEFFICIENTS AND POWER COEFFICIENTS ITC Measured Predicted Zero Power, CEA Group +.389 x 10-4 +0.30 t 0.3 x 10-4 5 at All Rods Out delta Rho / F delta Rho / F 50% Power, CEA Group .020 x 10-4 0.03 t 0.3 x 10-4 5 at 105" Withdrawn delta Rho / F delta Rho / F 100% Power, CEA Group -0.319 x 10-4 -0.27 t 0.3 x 10-4 5 at 105" Withdrawn delta Rho / F delta Rho /0F POWER COEFFICIENT 50% Power, CEA Group -1.012 x 10-4 -1.00 0.2 x 10-4 5 at 105" Withdrawn delta Rho /% Power delta Rho /% Power 100% Power, CEA Group -0.933 x 10-4 -0.88 t 0.2 x 10 -4 5 at 105" Withdrawn delta Rho /% Power delta Rho /% Power l

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I' TABLE 3 CEA GROUP WORTH MEASUREMENTS Measured Predicted

(% delta Rho) (% delta Rho)

Group 5 0.396 0.420 t .063 Group 4 0.215 0.233 i .035

. Group 3 0.585 0.615 i .092 Group 2 0.378 0.403 i .000 Group 1 0.700 0.754 i .113 TOTAL 2.274 2.425 i .242 TABLE 4 POWER DiffrRIBUTION MEASUREMENTS 50% Power 100% Power Acceptance Acceptance Measured Limits Measured Limits F gT 1.6804 1.785 1.5994 1.700 Ff 1.5972 1.720 1.5197 1.650 Tq 0.0109 0.030 0.0036 0.030 f

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ASSEMBLY RELATIVE POWER DENSITY FOR 50% POWER

,, UNIT 2 CYCLE 6

. PREDICTED: 50% POWER, EQUILIBRIUM XENON, BANK 5 @ 105 IN. WITHDRAWN, 40 M4D/T MEASURED: 47.4% POWER, EQUILIBRIUM XENON, BANK 5 @ 105 IN. WITHDRAWN, 34 MWD /T FIGURE 1 MEASURED HC 1 HO 2 FREDICTED O.73E2 C.9159

• 4 D 1 FF. 0.770C 1.0400 Y

-4.13 -11.64 OIFF.= MEASURED-PREDICTED X100 PREDICTED HC 3 HC 4 H0 $ F0 '6I CO 7 0.6342 1.1106 1.196E 0.5444 1.0967 0.E300 1.1300 1.21C0 0.E700 1.1000 x

0. 51 -1.72 -1.09 -2.94 -0.30 .

HD 8 CO 9 C1 10 C0 11 El 12 C1 13 0.8863 1.1795 1.1154 1.011C 0.6667 0.6447 0.9100 1.1700 1.1300 1.0100 0.6700 0.8400 W

-2.60 C. B1 -1.20 0.10 -0.19 0. 56 H0 14 CO 15 C1 16 CO 17 F0 18 H1 19 El 20 0.B863 1.1503 1.1359 1.2512 0.8749 1.1947 0.7460 0.9100 1.1700 1.1600 1.2400 0.6800 1.1800 0.7300 V

-2.60 -1.68 -2.06 0.90 -0.58 1.25 2.19 HO 21 00 22 C1 23 C0 24 D1 25 C0 26 F0 27 CO 26 0.8342 1.1795 1.1359 1.2123 0.7799 1.0939 0.9696 1.2218 0.8300 1.1700 1.1600 1.1900 0.8000 1.0000 0.9600 1.1700 T

0. 51 0.81 -2.06 1.87 -2.53 1.29 1.02 4.43 HC 29 C1 30 C0 31 D1 32 H1 33 FC 34 'H 1 35 D1 36 1.1106 1.1154 1.2512 0.7796 1.2236 0.9033 1.2723 0.8047 1.1100 1.1200 1.2300 0.8000 1.2400 0.9100 1.2700 0 E100 S 0.05 -0.41 1.72 -2.53 -1.31 -0.74 0.15 -0.65 HC 37 C1 3B FO 39 CO 40 FO 41 00 42 FC 43 GC 44 1.1968 1.0110 0.5749 1.0939 0.9023 1.1E37 0.9069 1.0775 HC 45 1.1600 0.9900 0.EE00 1.0500 0.9100 1.1e00 0.E900 1.04C0 R 0.7382 1.42 2.12 -0.5E 1. 29 -0.74 2.04 1.90 3.61

• • 0.7300 1.12 FC 46 El 47 H1 4E FO 49 HI 50 r0 51 H2 52 O! 53 0.6444 0.66E7 1,1947 0 C695 1.2723 0.C0c4 1.1325 0:c512 WO 54 0.E200 0.e50C 1.1700 0.9500 1.2300 0.EE00 1 .100 0 65C0 N C.9189 2.96 2.88 2.11 2. 0E -0.60 3. 06 2.57 0. 16 M 0.9700

-5 27 C0 55 C1 56 D1 57 GO SE D1 59 CO 60 21 61 30 e2 1.0967 0.6447 C.7460 1.2216 0.E047 1 0775 0.6512 0.5673 1.1000 0.6400 0.7300 1.1700 0.E100 1.0400 0.6500 0.5600 L

-0.30 0.56 2. 1 C 4.43 -0.c5 3. e1 0.1 E 1.30 1 2 3 4 5 6 7 9 11 E 10 l

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, I r ASSEMBLY RELATIVE POWER, DENSITY FOR 100% POWER UNIT 2 CYCLE 6

. PREDICTED: 100% POWER, EQUILIBRIUM XENON, BANK 5 0105. IN. , WITHDRAWN, 250 MWD /T '

MEASURED: 97.0% POWER, EQUILIBRIUM XENON, BANK 5 @ 105 IN.- WITHDRAWN, 302.4 MWD /T FIGURE 2*->

q H0 1 H0 .' 2

• • EASurtED FRE01CTED

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O.7135 0.862E 0.7300 0.9700 Y 11 O I ~F. -E.99

-2.26 014. = MEASURED-PREDICTED X100 4 HO 5 FO 6 .CO 7 PREDICTED HQ -- 3 ' HC 0.7951 1.0644 1.1414 0.8229 1.0714 0.0000 1.0700 1.1500 0.8400 1.0600 1.06 X

-0.61 -0.52 -0.75 -2.04 H0 2 CO 9 C1 10 CO 11 El 12 C1 13

, O.951E 1.1393 1.0321 0.9973 0.6924 0.8559 0.6900* 0.6600 W 0.8800 1.130C: 1.1100 1.0100

-0.48

-3.20 0. S2 -7.02 -1.26 C. c HO 14 CO 15 C1 16 CO 17 F0 18 H1 19 El 20 0.9519 1.1135 1.1128 1.2444 C.8663 1.2220 C.7641 0.9800' 1.1400 1.1500 1.2300 C.9000 1.1900 2.60 C.7600 C. 54 V

-3.20 -2.32 -3.23 1.17 -1.52 HD 21 CO~ 22 C1 23 CO 24 D1 25 CO 26 F0 27 CO 20 0.7951 1.1393 1.112e 1.1995 0.e067 1.1215 0.9934 1.2552 0.7900 1.1300 1.1500 1.1900 0. S.~.00 1.1000 0.9900 1.2000 T O.65 O.82 -3.23 C. 90 -1J62 1.95 0.34 4.60 H0 29 C1 30 C0 31 D1 32 HI 33 FO 34 H1 35 D1 36 1.0644 1.0321 1.24A4 0.5067 1.2634 0.9323 1.3071 C.S3EE 1.0600 1.1000 1.2300 0.E300 1.2600 0.27 0.9400

-0.82 1.3000 0.55 0.6400

-0.14 5

0.42 -6.17 1. 17 -2.51 e

HQ 37 C1 36 FC 39 GC 40 FC 41 CO 42 FO 43 C0 44 1.2220 0.9376 1.1257 1.1414 0.9973 0.EC63 1.1215 0.c323 0.*300 1.0500 R Ho 45 1.1300 0.9900 0.e000 1.1000 0.9500 1.2000 1. E0 0.82 4.23 C.7135 1.01 0.74 -1.52 1,95 -1. E 6 5 C.7000

• 1. c3 FC 46 El 47 H1 4E FCC.*c34 4' H 50 FC 51 H1 52 31 53 0.E229 0. c 24 1.2220e 1.0071 0.e376  : :eE7 0.7535 Ho 54 0.S100 0.6700 1.1c00 0.9500 1.3100 0.9200 1.1600 0.e900 N 3.34 2. e4 1.37 -0.22 1.91 3.34 1.96 0.8E29 1.59

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-4.04 CO 55 C1 56 D1 57 GO SE D1 59 CG 60 Di 61 DC 62 1.C714 0.9559 0.7e41 1.2552 0.SOEE 1.1257 0.7035 0.6133 1.0600 0.0600 0.7e00 1.2000 0.E400 1.0800 0.6900 0.6100 L 4.6C -0.14 4. 23 1. c 6 C. 54

i. DE -0.48 0. 54

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REFERENCES

1. Calvert Cliffs Nuclear Power Plant Unit 2 Startup Test Report, May 12,1977.

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l. e e.p BALTIM ORE GAS AND ELECTRIC CHARLES CENTER.P.O. BOX 1475 BALTIMORE, MARYLAND 21203 l

ARTHum E. LUNOVALL, JR.

vice Parsiocur.

SuppLv October 8,1984 Dr. Thomas E. Murley Regional Administrator U.S. Nuclear Regulatory Commission Region 1 631 Park Avenue King of Prussia, PA 19406

SUBJECT:

Calvert Cliffs Nuclear Power Plant Unit No. 2, l Docket No. 50-318 Report of Startup Testing for Cycle 6 l

Gentlemen:

j Startup testing for Calvert Cliffs Unit 2, Cycle 6 was completed on July 23,1984. A summary of the results from those tests is enclosed.

Very,truly yours,

]

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AEL/JFW/jes Enclosure ec: Director Inspection and Enforcement U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 R.A. Clark D.A. Brune, Esq.

G.F. Trowbridge, Esq.

D.H. Jaffe, NRC R.R. Mills, CE T. Foley, NRC N

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