ML19318A084

Summary of Startup Testing for Third Cycle.

ML19318A084
Person / Time
Site:	Calvert Cliffs
Issue date:	06/12/1980
From:	BALTIMORE GAS & ELECTRIC CO.
To:
Shared Package
ML19318A083	List: ML19318A082 ML19318A084
References
NUDOCS 8006180436
Download: ML19318A084 (7)

Text

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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 THIRD CYCLE 80oo180V3G

SUMMARY

OF STARTUP TESTING FOR CALVERT CLIFFS UNIT TWO CYCLE THREE I. The following tests were conducted for the Startup of Calvert Cliffs Unit Two for Cycle Three. 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. Isothermal Temperature Coefficient Measurements G. Group Rod Worth Measurements H. Power Coefficient Measurements l

[ I. Power Distribution Measurements II. The results of these tests and comparison with predictions are as follows:

A. The proper functioning of the CEDM's and CEA position indication was verified through insertion and withdrawal of CEA's. All trippable CEA's reached a 90% insertion in less than 3.0 seconds at hot, full-flow conditions. The slowest CEA (56) reached 90%

insertion in 2.42 seconds.

B. Reactor Coolant System flow was verified to be consistent with previous testing.

C. Initial Criticality was achieved at 1166 ppm Boron with CEA Group-5 at 118.5" withdrawn. Predicted value was 1170 ppm.

D. The CEA Synnetry Check verified that all CEA's were attached to their extension shafts. An evaluation of the quantitative reactivity change for dual CEA's yielded an azimuthal tilt estimate of 55%.

Acceptance Limit was 510%.

E. Critical Baron Measurements - Table 1.

F. Isothermal Temperature Coefficients - Table 2.

G. CEA Group Worth Measurements - Table 3.

H: Power Coefficient Measurements - Table 2.

I. Power Distribution Measurements - Table 4.

III. All test results were within accpetance limits.

TABLE 1 CRITICAL BORON MEASUREMENTS Measured Predicted All Rods Out, 532UF 1190 ppm 1191 + 100 ppm CEA Group 5, 4, 3, 2, 1 921 ppm 933 + 100 ppm TABLE 2 IS0 THERMAL TEMPERATURE COEFFICIENTS AND POWER COEFFICIENTS ITC Measured Predicted Zero Power, CEA Group 5 + .25 x 10 4ap/ F + .348 + 3 x 10 4Ap/ UF

-~

at 102" Withdrawn l 1

50% Power, CEA Group 5 U

.137 x 10 46p/ F - .103 + .3 x 10 4Ap/op at 102" Withdrawn 100% Power, CEA Group 5 - .90 x 10 4Ap/oF -

.87 .3 x 10 4ap/ F at 105" Withdrawn POWER COEFFICIENT 50% Power, CEA Group 5 -1.01 x 10 4Ap/% pwr -

.91 + .2 x 10 "Ap/% pwr at 105" Withdrawn 100% Power, CEA Group 5 - .93 x 10 4ap/% - .74 .2 x 10 4ap/% pwr at 105" Withdrawn I

TABLE 3 CEA GROUP WORTH MEASUREMENTS Measured (%Ao) Predicted (%Ap)

Group 5 .546 .522 i .078 Group 4 .172 .181 i .027 Group 3 .588 .628 i .094 Group 2 .655 .638 i .096 Group 1 .891 .899 +,.135 TOTAL 2.851 2.868 i .287 TABLE 4 POWER DISTRIBUTION MEASUREMENTS Measured Acceptance Limits 50% 100% 50% 100%

F 1.60 1.54 < 1.740 < 1.610 x

T < 1.540 F 1.51 1.46 < 1.644 7

T .0101 .0075 < .030 < .030 q

Radial Box See See Measurement varies from Power Distribuions Figure 1 Figure 2 prediction by less than

+ 15% for fuel

+ 10% (Tes on core assembl periphery) .

l 4

l

FIGURE 1

-Calvert Cliffs Unit 2 Cycle 3, 50% Power 17 9 Comparison of Measured Versus .698 .833 Predicted Radial Box Power *7019 *8703 Distribution

.55 t -4.47 32 28 23 16 8

.793 1.036 1.193 1.07 .880

.7606 1.0404 1.1797 1.0885 .8733

+4.08 .42 -2.22 -1.72 + .76 34 31 27 22 15 7

.833 1.228 1.161 1.029 .860 1.06

.8167 1.2177 1.1497 1.0062 .8776 1.1198

+1.95 + .838 + .973 -2.21 -2.04 -5.64 33 30 26 21 14 6 1.126 .978 1.156 1.2776 .899 .823 1.13Q1 .9479 1.1419 1.278 .8912 .8348

, .275 +3.07 +1.22 + .031 + .867 .04P 29 25 20 13 5 1.253 1.134 1.13 1.125 .944 1.2291 1.1101 1.1245 1.132 .9666

+1.91 +2.10 + .486 .62 -2.39 24 19 12 4

.930 1.08 .792 .804

.8978 1.0895 .8098 .8146

+3.46 .88 -2.13 -1.32 13 11 3

.926 1.014 .824

.9101 1.0406 .8296

+1.71 -2.6 .67 Measured 50%, 28.3 MWD /T 10

.870 .996

. Predicted 50%, 20.0 MWD /T

. 8725 .1.031

% Diff Measured - Predicted Measured x 100 .28 -3.5 1

.655

.675

-3.09

l FIGURE 2 17 g 1 Calvert Cliffs Unit 2, Cycle 3 .6734 .8062 100% Power Comparison of Measured Versus .6680 *8294 Predicted Radial Box Power Distribution

+ .00 l -2.88 32 28 23 16 8

.7554 .9868 1.1012 1.0396 .8351 i

.7248 .9843 1.1184 1.0571 .8674 j

+4.05 + .25 -1.56 -1.68 -3.87 l 34 31 27 22 15 7

.8182 1.1908 1.1101 1.0058 .8867 1.1365

.8051 1.1737 1.1161 .9895 .8918 1.1697

+1.60 +1.44 .64 , +1.62 .58 -2.92 l 33 30 26 21 14 6 1.1647 .9759 1.1324 1.2685 .9172 .85 93 1.1580 .9576 1.1351 1.2656 .9092 .8632

+ . 58 +1.88 .24 + .23 + .87 + .045 1 29 25 20 13 5 1.2468 1.1148 1.1339 1.1476 .9732 1.2306 1.1191 1.1342 1.1477 .9886

+1.46 .39 .03 .01 -1.58 24 19 12 4 I

.9292 1.1018 .8352 .8520

.9227 1.1114 .8437 .8681

+ .70 .87 -1.02 -1.89 18 11 3

.9579 1.0706 .8761

.9416 1.0803 .8527

+1.70 .91 +2.67 Measured 100%, 180.5 MWD /T 10 2 Predicted 100%, 150 MWD /T l

% Diff Measured - Predicted

• x 100 + .83 Measured -2.76 1

.7854

.8048

-2.47 l

I REFERENCES

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

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