ML20199J493

Responds to 860508 Application for Amend to License NPF-50, Reducing Feedwater Temp to 398 F During 75% Power Operation. Listed License Condition Re Partial Feedwater Heating Recommended

ML20199J493
Person / Time
Site:	Hope Creek
Issue date:	06/23/1986
From:	Adensam E Office of Nuclear Reactor Regulation
To:	Corbin McNeil Public Service Enterprise Group
References
NUDOCS 8607080354
Download: ML20199J493 (3)

Text

n JUN 2 a 1986 DISJRIBUTION:

s06cket No. 50-354 NRC PDR Docket No. 50-354 Local PDR RWD-3 r/f EAdensam EHylton Mr. Corbin A. McNeill, Jr., Vice President - Nuclear DWaaner Public Service Electric & Gas Company RBernero Nuclear Administration Ruilding GThomas P.O. Box 236 TCollins Hancocks Bridge, New Jersey 08038 Attorney, OELD EJordan

Dear Mr. McNeill:

BGrimes JPartlow Sub.iect: Partial Feedwater Heating ACRS (101 In your letter dated May 8,1986, you requested that Hope Creek license condition 2.C.12, " Partial Feedwater Heating", he revised, and that this revision be incorporated into the full power license. The license condition currently reads:

PSEAG shall not operate the facility (other than for nomal startup or shutdown) with the feedwater inlet temperature less than 424.5*F.

In your May 8 letter, you noted that during 75% power operation, the feedwater temperature may be reduced to 398 F, which would constitute violation of the license condition as written. You proposed that the license condition be revised to read as follows:

The facility shall not be operated with partial feedwater heating for the purpose of extending the nonnal level cycle without prior written consent of the staff.

We understand that feedwater temperature decreases with a decreasing Dower level and increases with an increasing power level, with all feedwater heaters in service. Additionally, feedwater temperature may decrease as a result of maintenance being performed on the feedwater system.

The staff has reviewed an analysis, to .iustify steady state operation with reduced feedwater temperatures, for a BWR/6. Temperatures ranoing from 420 F to 250*F were considered. The anticipated operating transients were reevaluated to deter-mine the operating Minimum Critical Power Ratio (MCPR) limits. The operating MCPR values were found to increase by 0.01 for operation between feedwater temperatures of 370*F and 320"F, and by 0.03 for feedwater temperatures between 320*F and 250 F.

We have reviewed the application of these findings to Hope Creek operations.

Although plant specific reduced feedwater temperature (RFT) analyses were not performed for Hope Creek, we believe operation with RFT, for the first cycle only, would be acceptable, provided that the Hope Creek Technical Specification operating limit MCPR is increased by 0.03 for a feedwater temperature between 400 F and 320 F and by 0.06 for a feedwater temperature between 320"F and 250 F.

B607080354 860623 PDR ADOCK 05000354 P PDR ,

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2 The additional margin is to account for possible differences in transient responses between Hope Creek, a BWR/4 and the analyzed RWR/6.

We believe that in lieu of the license condition as currently written, the following license condition may permit greater operational flexibility while assuring operation in analyzed regions:

The facility shall not be operated with reduced feedwater temperature for the purpose of extending the normal fuel cycle. Afin.- the first operating cycle, steady state operation with reduced feeowater temperature (relative to the FSAR analysis value) durino the normal fuel cycle shall be prohibited until plant specific analyses .iustifying such operation are provided by the licensee and approved by the staff.

We request that you notify us by letter of the acceptability of the proposed license condition and MCPR modifications described above. If they are accept-able, please identify the proposed Hope Creek Technical Specifications chances with your response.

Sincerely,

% nntsin m Elinor Adensam, Director BWR Pro.iect Directorate #3 Division of RWR Licensing cc: See next page OFC :ifunrup3  : FWRPD#3  : D /P #3  :  :  :  :

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NAME :DWagner:no : EHylton  : E. sam  :  :  :  :

DATE :6C3/86  : 6/ /86  : 6/2$/86  :  :  :  :

OFFICIAL RECORD COPY

e Mr. C. A. McNeill Public Service Electric & Gas Co. Hope Creek Generating Station ec:

Greoorv Minor Susan C. Remis Richard Hubbard Division of Public Interest Advocacy Dale Bridenbaugh New Jersey State Department of MHB Technical Associates the Public Advocate 1723 Familton Avenue, Suite K Richard J. Hughes Justice Comples San Jose, California 95125 CN-850 Trenton, New Jersey 08625 Troy P. Conner, Jr., Esquire Conner & Vetterhahn Office of Leaal Counsel 1747 Pennsylvania Avenue N.W. Department of Natural Resources Washington, D.C. 20006 and Environmental Control 89 Kings Hiahway Richard Fryling, Jr., Esquire P.O. Box 1401 Associate General Solicitor Dover, Delaware 19903 Public Service Electric & Gas Company P.O. Rox 570 TSE Mr. K. W. Burrowes, Pro.iect Engineer Newark, New Jersey 07101 Rechtel Power Corporation 50 Beale Street Resident Inspector P.O. Box 3965 U.S. Nuclear Requaltory Commission San Francisco, California 94119 P.O. Box 241 Hancocks Bridge, New Jersey 08038 Manager - Licensing and Regulation c/o Public Service Electric & Gas Richard F. Engel Rethesda Office Center, Suite 550 Deputy Attorney General 4520 East-West Highway Division of Law Bethesda, Maryland 20814 Environmental Protection Section Richard J. Hughes Justice Complex Ms. Rebecca Green CN-112P New Jersey Pureau of Radiation Trenton, New Jersey 08625 Protection 380 Scotch Road

Mr. Robert J. Touhey, Acting Director Trenton, New Jersey 08628 DNREC - Division of Environmental Control 89 Kings Hiohway Mr. Anthony J. Pietrofitta P.O. Box 1401 General Manager Dover, Delaware 19903 Power Production Enaineering Atlantic Electric Mr. R. S. Salvesen 1199 Black Horse Pike General Manacer-Hope Creek Operation Pleasantville, New Jersey 08732 Public Service Electric & Gas Co.

P.O. Rox A Regional Administrator, Reaion I Hancocks Bridge, New Jersey 08038 U. S. Nuclear Regulatory Commission l

631 Park Avenue Mr. B. A. Preston King of Prussia, Pennsylvania 19406 Public Service Electric & Gas Co.

Hope Creek Site MC12Y '

Licensing Trailer 12LI l Foot of Buttonwood Road Hancocks Bridge, New Jersey 08038 2

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