ML20134N816

Forwards Safety Evaluation Re Use of BWU-Z Critical Heat Flux Correlation Included in Descriptions Contained in TR BAW-10199P-A in Licensing Documentation Describing Vipre Code for Plants

ML20134N816
Person / Time
Site:	Mcguire, Catawba, McGuire
Issue date:	02/20/1997
From:	Tam P NRC (Affiliation Not Assigned)
To:	Tuckman M DUKE POWER CO.
Shared Package
ML20134N818	List: ML20134N816 ML20134P242
References
TAC-M97139, TAC-M97140, TAC-M97141, TAC-M97142, NUDOCS 9702240506
Download: ML20134N816 (6)

Text

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Mr. M. S. Tuckman "" U '

Senior Vice Presid:nt Nuclear Generation Duke Power Company P. O. Box.1006 Charlotte, NC 28201

SUBJECT:

CATAWBA AND MCGUIRE NUCLEAR STATIONS - USE OF THE BWU-Z CRITICAL HEAT FLUX CORRELATION IN LICENSING ANALYSES (TAC NOC. N97139, M97140, M97141, AND M97142)  !

Dear Mr. Tuckman:

In a letter of October 22, 1996, Duke Power Company requested approval to  !

reference the BWU-Z critical heat flux (CHF) correlation included in the i descriptions contained in the topical report BAW-10199P-A in licensing j documentation describing the VIPRE code for its Catawba and McGuire Nuclear i Stations, and incorporate that correlation in its VIPRE code for licensing analyses- for those plants. We myiewed your submittal and find that the BWU-Z CHF correlation may be referes ' and used as requested. Details of our review and conclusions are set forth in the enclosed safety evaluation (SE).

-You also requested to add the statement "Other CHF correlations that have been

! reviewed and approved by the NRC may-also be used to perform DNBR analyses,"

currently found in the approved topical report DPC-NE-3000, Revision 1, into .

topical reports DPC-NE-3001, DPC-NE-2004, and DPC-NE-2007. We conclude that apparently you have misconstrued the intent of approving the subject statement ]

to stand in DPC-NE-3000, Revision:1. With your apparent ichrpretation, the  !

wording is unacceptable for inclusion in the other reports, and is permitted i to stand in DPC-NE-3000, Revision 1, only'with'the understanding as given in the attached SE. ,

If you have any questions regarding this' review please contact me. This completes our effort on your submittal.

l Sincerely, Original signed by:

Peter S. Tam, Senior Project Manager Project Directorate 11-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos. 50-369, 50-370, 50-413 and 50-414

Enclosure:

Safety Evaluation gm COPY ll cc w/ encl: See next page l Distribution CCasto, RII h

! Docket File ACRS T-2-E26 PUBLIC ~ OGC, 0-15 B18 i PDII-2 RF JZwolinski i SVarga F0rr, 0-8 E23

JJohnson, RII VNerses GFFICE DRPE/PD22/ Pet . DRPE/PD22(/thDPRE/PD22/D _

E ,.1 .Svf t. ,,, M ..Jr7 DATE 2-

/97 b/ /97 h/ M 97 / /97 / /97 i coCunusT iWIG:\ CATAWBA \ CAT 97139.LTR

,./0227656 T 9 63^2g ea==

PDR ADOCK 05000369 P PDR

4:vq p k UNITED STATES s* j t

NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20066 0001

% *# February 20, 1997

Mr. M. S. Tuckman '

Senior Vice President i Nuclear Generation

. Duke Power Company

P. O. Box 1006 Charlotte, NC 28201

SUBJECT:

CATAWBA AND MCGUIRE NUCLEAR STATIONS - USE OF THE BWU-Z CRITICAL l HEAT FLUX CORRELATION IN LICENSING ANALYSES (TAC NOS. M97139, '

, M97140,M97141,ANDM97142)

Dear Mr. Tuckman:

In a letter of October 22, 1996, Duke Power Company requested approval to reference the BWU-Z critical heat flux (CHF) correlation included in the descriptions contained in the topical report BAW-10199P-A in licensing documentation describing the VIPRE code for its Catawba and McGuire Nuclear l Stations, and incorporate that correlation in its VIPRE code for licensing l analyses for those plants. We reviewed your submittal and find that the BWU-Z i CHF correlation may be referenced and used as requested. Details of our l review and conclusions are set forth in the enclosed safety evaluation (SE).

You also requested to add the statement "Other CHF correlations that have been reviewed and approved by the NRC may also be used to perform DNBR analyses,"

currently found in tha approved topical report DPC-NE-3000, Revision 1, into

topical reports DPC-NE-3001, DPC-NE-2004, and DPC-NE-2007. We conclude that

{ apparently you have misconstrued the intent of approving the subject statement a to stand in DPC-NE-3000, Revision 1. With your apparent interpretation, the

, wording is unacceptable for inclusion in the other reports, and is permitted to stand in DPC-NE-3000, Revision 1, only with the understanding as given in the attached SE.

If you have any questions regarding this review please contact me. This

completes our effort on your submittal.

Sincerely, Peter S. Tam, Senior Project Manager i Project Directorate 11-2 Division of Reactor Projects - I/II Office of Nuc1 w r Reactor Regulation Docket Nos. 50-369, 50-370, 50-413 and 50-414

Enclosure:

Safety Evaluation cc w/ enc 1: See next page

l McGuire Nuclear Station Duke Power Company Catawba Nuclear Station cc:

l Mr. Paul R. Newton Mr. Dayne H. Brown, Director l Legal Department (PB05E) Division of Radiation Protection i Duke Power Company North Carolina Department of 422 South Church Street Environmental, Health and Charlotte, North Carolina 28242-0001 Natural Resources P. O. Box 27687 i County Manager of Mecklenburg County Raleigh, North Carolina 27611-7687 720 East Fourth Street Charlotte, North Carolina 28202 Ms. Karen E. Long .

Assistant Attorney General  !

Mr. J. E. Snyder North Carolina Department of '

l Regulatory Compliance Manager Justice Duke Power Company P. O. Box 629 McGuire Nuclear Site Raleigh, North Carolina 27602 12700 Hagers Ferry Rnd Huntersv111e, North Carolina 28078 Mr. G. A. Copp 1 Licensing - EC050  !

J. Michael McGarry, III, Esquire Duke Power Company i Winston and Strawn 526 South Church Street l 1400 L Street, NW. Charlotte, North Carolina 28242-0001 Washington, DC 20005  ;

Regional Administrator, Region II Senior Resident Inspector U.S. Nuclear Regulatory Commission l

c/o U. S. Nuclear Regulatory 101 Marietta Street, NW., Suite 2900 Commission Atlanta, Georgia 30323 l 12700 Hagers Ferry Road i Huntersv111e, North Carolina 28078 Elaine Wathen l

Lead REP Planner Mr. Peter R. Harden, IV Division of Emergency Management Account Sales Manager 116 West Jones Street Westinghouse Electric Corporation Raleigh, North Carolina 27603-1335

! Power Systems Field Sales l

P. O. Box 7288 Mr. T. Richard Puryear Charlotte, North Carolina 28241 Owners Group (NCEMC)

Duke Power Company l Dr. John M. Barry 4800 Concord Road

! Mecklenburg County York, South Carolina 29745 Department of Environmental Protection 700 N. Tryon Street Charlotte, North Carolina 28202

. .; . - = _ . . - _ - . - _ - - . _ - - - - - - _ , . - . - .- - - _ - .

i Duke Power Company McGuire Nuclear Station

! Catawba Nuclear Station l cc:

Mr. M. S. Kitlan North Carolina Electric Membership

Regulatory Compiiance Manager Corporation i Duke Power Company P. O. Box 27306

4800 Concord Rc,ad Raleigh, North Carolina 27611 York, South Carolina 29745

, Senior Resident Inspector North Carolina Municipal Power 4830 Concord Road I Agency Number 1 York, South Carolina 29745

, 1427 Meadowwood Boulevard P. O. Box 29513 Mr. William R. McCollum

Raleigh, North Carolina 27626-0513 Site Vice President l Catawba Nuclear Station County Manager of York County Duke Power Company York County Courthouse 4800 Concord Road York, South Carolina 29745 York, South Carolina 29745 i Richard P. Wilson, Esquire Mr. H. B. Barron 1

Assistant Attorney General Vice President, McGuire Site

South Carolina Attorney General's Duke Power Company i Office 12700 Hagers Ferry Road i P. O. Box 11549 Huntersville, North Carolina 28078 l Columbia, South Carolina 29211

! Piedmont Municipal. Power Agency i 121 Village Drbe Greer, South Caroliaa 29651 Saluda River Electric P. O. Box 929 Laurens, South Carolina 29360 Max Batavia, Chief Bureau of Radiological Health South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201

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