ML19345C536
| ML19345C536 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 12/03/1980 |
| From: | Lundvall A BALTIMORE GAS & ELECTRIC CO. |
| To: | Clark R Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8012050454 | |
| Download: ML19345C536 (2) | |
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BALTIMORE G AS AND ELECTRIC COMPANY P.O. BOX 1475 C ALTIMOR E. M A RYLAND 212o3 AntHun E. I,UNDVAbbedR-December 3, 1980 Vice ParsectNT som.
Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555 ATTENTION:
Mr. R. A. Clark, Chief Operating Reactors Branch #3 Division of Licensing
SUBJECT:
Calvert Cliffs Nuclear Power Plant Unit No.1, Docke: No. 50-317 Amendment to Operating License DPR-53 Fif th Cycle License Application Responses to NRC Staff Questions Gentlemen:
Enclosed are our reponses to questions posed by NRC staff on the subject application.
Very truly yours, BALTIMORE GAS ApD ELECTRIC COMPAAY y'l
&fbx L l A. E. Lun$all, Jr.
Vice President - Supply AEL/W3L/mit Copy To:
J. A. Biddison, Esquire (w/out Encl.)
G. F. Trowbridge, Esquire (w/out Encl.)
Messrs.
E. L. Conner, Jr., NRC P. W. Kruse, CE Enclosure (40 copies) pm S30!!?d35Ea:
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a v tu v 30 CO 3g1205oi: 54 g g.g
t ENCLOSURE QUESTION Table 6-1 contains values for core average heat flux and average linear heat rate for both cycle 5 and the reference cycle 4 of Unit 1.
The cycle'5 to cycle 4 ratios of these two quantities should be equal but are not. Please explain why.
RESPONSE
The value of Average Linear Heat Rate given in Table 6-1 for cycle 5 (6.45 kw/ft)_has been found to be inconsistent with the associated descrip-tive label. The correct value for cycle 5 is 6.23 kw/ft. Contrary to the descriptive label in the submittal,-the earlier value corresponded to densified fuel without accounting for the fraction of heat generated out-side the fuel rod.
Use of 6.23 kw/ft in the cycle 5 to cycle 4 ratio results in agreement with the cycle 5 to cycle'4 ratio of Core Average Heat Flux.
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