ML041210512

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Westinghouse, Request for Additional Information, Revising the Technical Specification to Allow the Use of Four Mixed Oxide Lead Test Assemblies
ML041210512
Person / Time
Site: Catawba  Duke Energy icon.png
Issue date: 04/30/2004
From: Barron H
Nuclear Generation Employees Association
To: Martin R
NRC/NRR/DLPM/LPD2
Martin R, NRR/DLPM, 415-1493
References
TAC MB7863, TAC MB7864
Download: ML041210512 (5)


Text

April 30, 2004 Mr. H. B. Barron Executive Vice President Nuclear Generation Duke Energy Corporation 526 South Church Street Charlotte, NC 28202

SUBJECT:

CATAWBA NUCLEAR STATION, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION (RAI) CONCERNING MIXED OXIDE LEAD FUEL ASSEMBLIES (TAC NOS. MB7863 AND MB7864)

Dear Mr. Barron:

By letter dated February 27, 2003, Duke Energy Corporation (Duke) submitted an application for amendments to the renewed facility operating licenses for Catawba Nuclear Station, Units 1 and 2. The proposed amendments would revise the Technical Specifications to allow the use of four mixed oxide (MOX) Lead Test Assemblies (LTA) at the Catawba station. The Nuclear Regulatory Commission (NRC) staff learned on April 12, 2004, and your letter dated April 16, 2004, confirms that Dukes planned fuel cycle design that would include MOX LTAs also would include eight Westinghouse Next Generation Fuel (NGF) LTAs. This information was not reflected in the NRC staffs Safety Evaluation that was issued on April 5, 2004, and it must be considered prior to the conclusion of the NRC staffs review. We met with your staff on April 23, 2004, to discuss this issue. The NRC staff has identified several questions that require a response to support the staffs continued review. These questions are contained in the enclosed RAI.

It is anticipated that some categories of information will be obtained more productively by the conduct of an NRC staff audit of calculations and analyses at your engineering offices. We will contact your staff to arrange this audit. Please contact me on (301) 415-1493 if you have any other questions on these issues.

Sincerely,

/RA/

Robert E. Martin, Senior Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-413 and 50-414

Enclosure:

RAI cc w/encl: See next page

ML041210512

  • See previous concurrence NRR-088 OFFICE PDII-1/PM PDII-1/LA SRXB/SC PDII-1/SC NAME RMartin CHawes RLandry LOlshan for:

JNakoski DATE 04/30/04 04/30/04 04/30/04 04/30/04

Enclosure REQUEST FOR ADDITIONAL INFORMATION ON APPLICATION FOR MIXED OXIDE (MOX) LEAD TEST ASSEMBLIES DUKE POWER COMPANY CATAWBA NUCLEAR STATION, UNITS 1 AND 2 DOCKET NOS. 50-413 AND 50-414

1. Duke is requested to provide supporting information for the validity of the WRB-2M critical heat flux correlation with respect to the Next Generation Fuel (NGF) design. The Nuclear Regulatory Commission (NRC) staff requests that a meeting be arranged between the NRC staff, Duke, and the (NGF fuel vendor (Westinghouse) for this purpose. It is anticipated that this meeting will include the discussion of information that is proprietary to Westinghouse.

The meeting should also include a detailed discussion of the hydraulic performance of the NGF assembly and the reasoning to support what the NRC staff understands to be a Westinghouse recommendation that the assemblies are to be run with a limiting power peaking factor.

2. Duke is requested to describe calculations performed in support of specification of the exclusion zone for the NGF/MOX Lead Test Assemblies (LTAs). This should include the impact on the Robust Fuel Assemblies (RFAs) that are between the NGF and MOX LTAs.
3. Duke is requested to provide a qualitative comparison of the two methodologies used to analyze the fuel (PAD and COPERNIC).
4. Duke is requested to provide the vendor design document reports prepared by Westinghouse for the RFA and NGF fuel for examination by the NRC staff.
5. Further specific requests for additional information:
a. What is the differential peak cladding temperature ( PCT) for RFA vs. NGF fuel?
b. What is the peaking penalty for the NGF LTAs?

c.

What is the revised PCT for the RFA fuel?

d. Provide the results of the sensitivity studies performed that consider steam generator designs, power shapes and fuel cycle burnup.
6. Duke is requested to provide the NRC staff with a description of and the results of a thorough re-review of all information in the application of February 27, 2003, as supplemented, to confirm its completeness and accuracy. It is understood that Duke was referring to its plans to conduct such a review in its presentations in the meeting on April 23, 2004.

Enclosure Catawba Nuclear Station cc Lee Keller, Manager Regulatory Compliance Duke Energy Corporation 4800 Concord Road York, South Carolina 29745 Ms. Lisa F. Vaughn Duke Energy Corporation Mail Code - PB05E 422 South Church Street P.O. Box 1244 Charlotte, North Carolina 28201-1244 Anne Cottingham, Esquire Winston and Strawn 1400 L Street, NW Washington, DC 20005 North Carolina Municipal Power Agency Number 1 1427 Meadowwood Boulevard P. O. Box 29513 Raleigh, North Carolina 27626 County Manager of York County York County Courthouse York, South Carolina 29745 Piedmont Municipal Power Agency 121 Village Drive Greer, South Carolina 29651 Ms. Karen E. Long Assistant Attorney General North Carolina Department of Justice P. O. Box 629 Raleigh, North Carolina 27602 NCEM REP Program Manager 4713 Mail Service Center Raleigh, North Carolina 27699-4713 North Carolina Electric Membership Corp.

P. O. Box 27306 Raleigh, North Carolina 27611 Senior Resident Inspector U. S. Nuclear Regulatory Commission 4830 Concord Road York, South Carolina 29745 Henry Porter, Assistant Director Division of Waste Management Bureau of Land and Waste Management Dept. of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201-1708 Mr. R. L. Gill, Jr., Manager Nuclear Regulatory Issues and Industry Affairs Duke Energy Corporation 526 South Church Street Mail Stop EC05P Charlotte, North Carolina 28202 Saluda River Electric P. O. Box 929 Laurens, South Carolina 29360 Mr. Peter R. Harden, IV, Vice President Customer Relations and Sales Westinghouse Electric Company 6000 Fairview Road 12th Floor Charlotte, North Carolina 28210 Mary Olson Director of the Southeast Office Nuclear Information and Resource Service 729 Haywood Road, 1-A P. O. Box 7586 Asheville, North Carolina 28802

Catawba Nuclear Station cc:

Mr. T. Richard Puryear Owners Group (NCEMC)

Duke Energy Corporation 4800 Concord Road York, South Carolina 29745 Richard M. Fry, Director Division of Radiation Protection N. C. Dept. of Environment, Health, and Natural Resources 3825 Barrett Drive Raleigh, North Carolina 27609-7721 Diane Curran Harmon, Curran, Spielberg &

Eisenberg, LLP 1726 M Street, N.W.

Suite 600 Washington, DC 20036 D. M. Jamil Vice President Catawba Nuclear Station Duke Energy Corporation 4800 Concord Road York, South Carolina 29745-9635