ML20003E894

Summary of Startup Testing for Fifth Cycle.

ML20003E894
Person / Time
Site:	Calvert Cliffs
Issue date:	04/08/1981
From:	BALTIMORE GAS & ELECTRIC CO.
To:
Shared Package
ML20003E892	List: ML20003E891 ML20003E894
References
NUDOCS 8104170454
Download: ML20003E894 (7)

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BALTIMORE GAS AND ELEChRIC COMPANY CALVERT CLIFFS NUCLEAR POWER PLANT UNIT 1 Docket No. 50-317 License No. DPR-53

SUMMARY

OF STARTUP TESTING FOR FIFTH CYCLE l

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~810.417 0ll$f i ._ - _ _

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SUMMARY

OF STARTUP TESTING FOR CALVERT CLIFFS UNIT ONE CYCLE FIVE I. The following tests were conducted for the Startup of Calvert Cliffs Unit One for Cycle Five. 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 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 verifed through insertion and withdrawal of CEA's. All CEA's reached a 90% insertion in less than 3.1 seconds at hot, full-flow conditions. The slowest CEA (50) reached 90% insertion in 2.86 seconds.

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

C. Initial' Criticality was achieved at 1268 ppm Boron with CEA Group-5 at 91.5" withdrawn. Predicted value was 1287 ppm.

D. The CEA Symmetry Check verified that all CEA's were attached to their i extension shaf ts. An evaluation of the quantitative reactivity change for dual l CEA's yielded an azimuthal tilt estimate of < 5%. Acceptance Limit was <iO%. _

E. Critical Boron Measurements - Table 1.

F. Isothermal Temperature Coefficients - Table 2.

G. CEA Group Worth Ateasurements - Table 3.

H. Power Coefficient Measurements - Table 2.

I. Power Distribtulon Measurements - Table 4.

( 111. All test results were within acceptance limits.

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TABLE 1 CRITICAL BORON MEASUREMENTS Measured Predicted I All Rods Out,532 F 1300 ppm 1302 t 100 ppm CEA Group 5, 4, 3, 2,1 1008 ppm 1028 100 ppm TABLE 2 ISOTHERMAL TEMPERATURE COEFFICIENTS AND POWER COEFFICIENTS ITC Measured Predicted Zero Power, CEA Group 5 + .24 x 10-" ao/ F + .257 : .3 x 10-" ao/ F at 105" Withdrawn 50% Power, CEA Group 5 .1088 x 10-"ao/ F .055 : .3 x 10-" ap/ F at 105" Withdrawn 100% Power, CEA Group 5 .418 x 10

• ao/ F .384 : .3 x 10-" ao/ F at 105" Withdrawn PCWER COEFRCIENT 50% Power, CEA Group 5 -1.132 x 10-4 ap/% power -1.011 .2 x 10-4 ar/% power at 105" Withdrawn 100% Power, CEA Group 5 -1.02 x 10-"ap /% power .869 : .2 x 10-4ap /% power at 105" Withdrawn

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

Group 5 .4711 .482 .072 j

Group 4 .2253 .230 .035 Group 3 .7974 .814 :.122 Group 2 .5808 .585 .088 Group 1 .7500 .325 t .124 TOTAL 2.825 2.936 .294 TABLE 4 POWER DISTRIBUTION MEASUREMENTS Measured Acceptance Limits 50 % 100 % 50 % 100 %

F xy T 1.57 1.54 < l.70 <l.62 1.51 1.50 <l.695 <l.62 Ff Tq .0199 .0165 < .030 < .030 Radial Box See See Measurement varies from Power Distributions Figt're 1 Figure 2 prediction by less than: 10% (

15% for fuel assemblies on core periphery).

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FIGURE 1 Calvert Cliffs Unit 1 Cycle 5, 50% Power Co=parison of Measured Versus Predicted Radial Box Power Distribution Measured @ 50%, 31.9 MWD /I Predicted @ 50%, 40 MWD /T

% Diff = Measured - Predicted x 100 Measured 1 2 0.7192 0.8921 0.7268 0.9869

-1.05 -9.61 3 4 5 6 7 0.7412 0.9688 0.8998 0.9666 0.9857 0.7297 0.9865 0.9833 0.9736 C.9490 v1.58 -1.79 -8.49 -0.72 -3.87 8 9 10 11 12 13 0.8206 1.0664 1.0008 1.1635 0.9167 1.1477 0.7987 1.0765 0.9845 1.1857 0.8929 1.1547

+2.74 -0.94 +1.66 -1.87 +2.67 -0.61 14 15 16 17 18 19 20 0.8206 1.0259 1.0488 1.2183 0.9748 1.1771 1.1765 0.7954 0.9892 1.0178 1.2226 0.9510 1.1600 1.1628 e3.17 v3.71 +3.05 -0.35 +2.50 +1.47 +1.18 21 22 23 24 25 26 27 28 0.7412 1.0664 1.0488 1,2092 0.9818 1.1648 0.9697 1.1355 0.7267 1.0724 1.0167 1.1687 0.9600 1.1544 0.9903 1.1382

-2.00 -0.56 +3.16 +3.47 -2.27 +0.90 -2.08 -0.24 29 30 31 32 33 34 35 36 0.9688 1.0008 1.2183 0.9818 1.1945 0.9579 1.1147 0.8203 0 9822 0 9798 1.2206 0.9588 1.2100 0.9608 1.1725 0.8384

-1.36 -2.14 -0.19 +2.40 -1.28 +0.30 -4.93 -2.16 -

37 38 39 40 41 42 43 44 0.8998 1.1635 0.9748 1.1648 0.9579 1.0873 0.9417 1.0122 45 0.9783 1.1816 0.9489 1.1523 0.9568 1.0609 0.9122 0.9959 0.7192 -8.02 -1.53 +2.73 ti.08 +0.11 +2.49 '3.23 -1.64 0.7211 52

-0*26 46 47 45 49 ,30 51 53 0.9666 0.9167 1.1771 0.9697 1.1147 0.9417 1.0895 0.8676 0.9670 0.8902 1.1617 0.9891 1.1707 0.9113 1.0847 0.8507 34

-0.04 t2.98 +1.33 -1.96 -4.78 +3.34 -0.44 +1.99 0.8921 0.9715 55 56 57 58 59 60 61 62

-8 17 0.9857 1.1477 1.1765 1.1355 0.8203 1.0122 0.8676 0.5975 0.9412 1.1547 1.1798 1.1325 0.8341 0.9816 0.8654 0.5802

+4.73 -0.61 -0.28 +0.26 -1.65 +3.12 +0.25 +2.98 WP 5

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FIGURE 2

,, .s Calverr Cliffs Unit 1 Cycle 5, 100% Power Comparison of Measured Versus Predicted Radial Box Power Distribution Measured @ 96.42%, 220.4 MWD /T Predicted @ 100%, 250 MWD /T 1

% Diff. = Measured - Predicted x 100 1.6716 0.8662 Measured 0.9309 3.6917

-2.91 -6.95 3 4 5 6 7 0.7099 0.9457 0.8896 0.9492 0.9626 0.6962 0.9400 0.9478 0.9478 0.9263

+1.97 +0.71 -6.14 +0.15 +3.92 8 9 10 11 12 13 0.7996 1.0478 0.9845 1.1589 0.9119 1.1420 0.7685 1.0372 0.9638 1.1609 0.8941 1.1434

-4.05 +1.02 +2.15 -0.17 +1.99 -0.12 14 15 16 17 18 19 20 0.7996 1.0141 1.04S5 1.2198 0.9845 1.1814 1.1778

,- 0.7657 0.9653 1.0068 1.2095 0.9620 1.1719 1.1749

( +4.43 +5.06 +4.14 ' +0.85 +2.34 +0.81 +0.25 21 22 23 24 25 26 27 28 0.7099 1.0478 1.0485 1.2079 0.9856 1.1783 0.9818 1.1515 0.6940 1.0341 1.0060 1.1680 0.9771 1.1779 1.0208 1.1690

+2.29 +1.32 +4.22 +3.42 +0.87 +0.03 -3.82 -1.50 29 30 31 32 33 34 35 36 0.9467 0.9845 1.2198 0.9856 1.2130 0.9803 1.1527 0.8539 0.9371 0.9602 1.2082 0.9761 1.2308 0.9976 1.2105 0.8819

+1.024 +2.53 +0.96 +0.97 -1.45 -1.73 -4.77 -3.17 37 38 39 40 41 42 43 44 0.8896 1.1589 0.9845 1.1783 0.9803 1.1176 0.9729 1.0479 45 0.9446 1.1584 0.9606 1.1763 0.9937 1.1078 0.9624 1.0512 0.6716 -5.82 +0.04 +2.49 +0.17 -1.35 +0.88 +1.09 -0.31 0.6882 47 48 49 50 51 52 53 46

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• 1.1290 0.9492 0.9119 1.1814 0.9818 1.1527 0.9729 0.8983 0.9436 0.8926 1.1742 1.0200 1.2090 0.9614 1.1392 0.9076 54

+0.59 +2.16 +0.61 -3.75 -4.66 +1.20 -0.90 -1.02 0.6662 0.9198 55 56 57 58 59 60 61 62

-5.83 0.9626 1.1420 1.1778 1.1515 0.8539 1.0479 0.8983 0.6213 0.9211 1.1448 1.1919 1.1638 0.8778 1.0368 0.9226 0.6293

+4.5 -0.24 -1.18 -1.06 -2.72 +1.07 -2.63 -1.27 d S i

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I REFERENCES 1

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- 1. Calvert Cliffs Nuclear Power Plant Unit 1, Startup Test Report, August 29, 1975.

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