ML20078R092

Forwards non-proprietary & Proprietary NFSR-0090, Response to Nuclear Regulatory Staff Request for Addl Info on Vipre/ WRB-2 DNBR Thermal Limit for Westinghouse 17x17 Ofa & Vantage 5 Fuel. Proprietary Encl Withheld (Ref 10CFR2.790)

ML20078R092
Person / Time
Site:	Byron, Braidwood
Issue date:	12/13/1994
From:	Saccomando D COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation
Shared Package
ML19311B582	List: ML20078R092 ML20078R114 ML20078R116
References
NUDOCS 9412230202
Download: ML20078R092 (4)

Text

- _ - - _ _ -

j r~'N Commonwealth Edison l

i

~^ )'7 1400 Opus Placa Do';eners Grovo, Illinois 60515 j

December 13, 1994 .

i Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission l Washington, D.C. 20555 i Attention: Document Control Desk

Subject:

Response to Request for Additional Information Related to the Review of the VIPRE Computer Code Byron Station Units 1 and 2 NRC Docket Nos. 50-454/455 Braidwood Station Units 1 and 2 NRC Docket Nos. 50-456/457 i

l l

References:

1) G. Dick letter to D. Farrar transmitting Request for Additional Information regarding the VIPRE Computer Code dated September 2, 1994

{ 2) D. Chrazno', ski letter to NRC transmitting Request to review VIPRE computer code which implements the VIPRE/WRB-2 thermal limit for Westbghouse 17x17 fuel dated Jan.lary 14, 1993 Reference 2 transmitted Commonwealth Edison Company (Comed) request for approva.1 for use of the VIPRE computer code which implements the VIPP2/WRB-2 thermal limit for Westinghouse 17xl7 fuel. Reference 1 transmitted the Nuclear Regulatory Commission's l (NRC) request for additional information. Attached is Comed's response specifically, Attachment A: " Response to Nuclear Regulatory Staff Request for Additional Information on VIPRE/WRB-2 DNBR Thermal Limit for Westinghouse 17X17 OFA and Vantage 5 Fuel" Proprietary Version Attachment B: " Response to Nuclear Regulatory Staff Request for Additional Information on VIPRE/WRB-2 DNBR Thermal Limit for Westinghouse 17X17 OFA and Vantage 5 Fuel" Non-Proprietary Version Also, per your request we are forwarding a computer disk which I contains Comed Data for VIPRE/WFB-2 to the Division of Reactor Projects. s k:nla\bybwdsvirreral h

e.,2 m me2 e.,21=

PDR P

ADOCK 05000454 PDR l h'I :

fg{

u-

//tlf l

}

7 __

1

~

l I

Document Control Desk' December 13, 1994 l l

l l

Please note that Attachment A contains information proprietary to the Westinghouse Electric Corporation, it is supported by an affidavit signed by Westinghouse, the owner of the information. ,

The affidavit sets forth disclosure by the Commission and  ;

addresses with specificity the considerations listed in paragraph (b) (4 ) of Section 2.790 of the Commission's regulations.

Accordingly, it is respectfully requested that the information which is proprietary to Westinghouse be withheld from public disclosure. The affidavit is provided in Attachment C.

Correspondence with respect to the proprietary aspects of the items listed above should refer to Westinghouse Letter CAW-94-756 and be addressed to N. J. Liparulo, Manager of Nuclear Safety &

Regulatory Activities, Westinghouse Electric Corporation, P.O.

Box 355, Pittsburgh, Pennsylvania 15230-0355.

If you have any questions concerning this transmittal, please refer them to this office.

Sincerely,

/d ~Q Denise Saccomando j Nuclear Lice (M sing Administrator j Attachments cc: G. Dick, Byron Project Manager-NRR R. Assa, Braidwood Project Manager-NRR H. Peterson, Senior Resident Inspector-RIII S. DuPont, Senior Resident Inspector-RIII J. Martin, Regional Administrator-RIII Office of Nuclear Safety-IDNS k:nla\bytwd\vipreral l

4

1

, 1 Attachment A k:nla\bybwd\vipzerai

Attachment C k i nla \ bytud\vipreral

__ _ . - . - - -