ML15244A237
| ML15244A237 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 04/22/1987 |
| From: | Youngblood B Office of Nuclear Reactor Regulation |
| To: | Tucker H DUKE POWER CO. |
| References | |
| NUDOCS 8704300414 | |
| Download: ML15244A237 (3) | |
Text
01 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 Dockets Nos.:
50-269, 50-270 and 50-287 2 2 APR 1987 Mr. H. B. Tucker Vice President - Nuclear Production Duke Power Company P. 0. Box 33189 422 South Church Street Charlotte, North Carolina 28242
Dear Mr. Tucker:
SUBJECT:
REVIEW OF BAW-1915P FOR USING FLECHET Re:
Oconee Nuclear Station, Units 1, 2 and 3 We have reviewed your January 20, 1987 letter where you request that we review and approve BAW-1915P by May 26, 1987 such that FLECSET may be used in the design of the Oconee Unit 1, Cycle 11 core. We cannot support this request because we are waiting for a response to our questions from Babcock and Wilcox.
You state that the design of Oconee Unit 1, Cycle 11 core will utilize Babcock and Wilcox (B&W) Owners Group Topical Report BAW-1915P, Bounding Analytical Assessment of NUREG-0630 Models on LOCA kilowatt per foot (kw/ft) limits with use of FLECSET, which was originally submitted for our approval in September 1983 and resubmitted in May 1986. BAW-1915P provides a generic bounding assessment of the impact of NUREG-0630 models on loss-of-coolant accident (LOCA) linear heat rate limits and all core elevations using the approved emergency core cooling system (ECCS) evaluation model.
The predicted reduction in LOCA linear heat rate limits are partially compensated for by use of a heat transfer correlation under reflooding conditions based on FLECHT-SEASET data. We have sent a request for additional information from Mr. D. Crutchfield to Mr. J. Taylor and we have been informed that the answers to these questions may be given to us by April 1987.
Furthermore, associated with this area, are our requests for information on BAW-10104, Revision 5 of LOCA models and BAW-10148 on the reflood-3 code.
We sent a request for information on November 14, 1986 from Mr. D. Crutchfield to Mr. J. Taylor. We were told to expect a response by the end of February, 1987. We have not yet received these answers.
8704'300414 870422 PDR ADOCK 05000269 PDR
-2 Therefore, without a response to our questions so we may complete our review, we cannot support your request to complete our review of BAW-1915P by May 26, 1987.
Sincerely, B. J. Youngblood, Director Project Directorate 11-3 Division of Reactor Projects-I/II
Enclosures:
As stated cc w/enclosures: See next page Distribution:
Docket File NRC PDR Local PDR PD#II-3 Reading MDuncan BJYoungblood Reading HPastis OGC-Bethesda ACRS(10)
See previous concurrence PD 3DRP-I/I P#6D 3/ RP-I/II PD RP-I/II Hd is/mac
- G son MDuncan BJY n
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Mr. H. B. Tucker Oconee Nuclear Station Duke Power Company Units Nos. 1, 2 and 3 cc:
Mr. A. V. Carr, Esq.
Duke Power Company Duke Power Company P. 0. Box 33189 Post Office Box 33189 422 South Church Street 422 South Church Street Charlotte, North Carolina 28242 Charlotte, North Carolina 28242 J. Michael McGarry, III, Esq.
Bishop, Liberman, Cook, Purcell & Reynolds 1200 Seventeenth Street, N.W.
Washington, D.C. 20036 Mr. Robert B. Borsum Babcock & Wilcox Nuclear Power Generation Division Suite 220, 7910 Woodmont Avenue Bethesda, Maryland 20814 Manager, LIS NUS Corporation 2536 Countryside Boulevard Clearwater, Florida 33515 Senior Resident Inspector U.S. Nuclear Regulatory Commission Route 2, Box 610, Seneca, South Carolina 29678 Regional Administrator U.S. Nuclear Regulatory Commission 101 Marietta Street, N.W.
Suite 3100 Atlanta, Georgia 30303 Mr. Heyward G. Shealy, Chief Bureau of Padiological Health South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201 Office of Intergovernmental Relations 116 West Jones Street Raleigh, North Carolina 27603 Honorable James M. Phinney County Supervisor of Oconee County Walhalla, South Carolina 29621