ML19282A021

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Forwards Review of Updated WCAP-8691, Fuel Rod Bowing. Acceptable Basis Has Been Provided for Calculating Critical Heat Flux on Bowed Rods
ML19282A021
Person / Time
Issue date: 04/05/1979
From: Stolz J
Office of Nuclear Reactor Regulation
To: Anderson T
WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
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ML19282A022 List:
References
NUDOCS 7905090290
Download: ML19282A021 (1)


Text

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APR 5 1979 Mr. Thomas M. Anderson, Manager Nuclear Safety Department Westinghouse Electric Corporation P. O. Box 355 Pittsburgh, Pennsylvania 15230

Dear Mr. Anderson:

SUBJECT:

STAFF REVIEW 0F WCAP-8691 Our review of certain aspects of WCAP-8691 (Proprietary) " Fuel Rod Bowing" has been completed.

Your letter NS-TMA-1924 dated September 1, 1978, advised us of your plan to submit a revised topical report on fuel rod bowing to include new information requested in our June 19, 1978 letter.

Subsequently you have submitted supplemental information regarding the effect on critical heat flux of a partially bowed heated rod in a cold wall thimble cell geometry.

We have reviewed the supplemental information regarding the effect on critical heat flux of a partially bowed rod. We have concluded that the supplemental information provides an acceptable basis for calculating critical heat flux on bowed rods.

Our evaluation is enclosed.

Please incorporate the supplemental information into the revision to WCAP-8691.

Sincerely, John F. Stolz, Ciief Light Water Reactors Branch No. 1 Division of Project Management

Enclosure:

Evaluation of Westinghouse Report cc:

Mr. D. Rawlins Westinghouse Electric Corporation P. O. Box 355 Pittsburgh, Pennsylvania 15230 f2 90 5 09 0 E% 1