ML041400201
| ML041400201 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 05/19/2004 |
| From: | Martin R NRC/NRR/DLPM/LPD2 |
| To: | Barron H Duke Energy Corp |
| Martin R, NRR/DLPM, 415-1493 | |
| References | |
| TAC MB7863, TAC MB7864 | |
| Download: ML041400201 (6) | |
Text
May 19, 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 CONCERNING MIXED OXIDE LEAD FUEL ASSEMBLIES (TAC NOS. MB7863 AND MB7864)
Dear Mr. Barron:
By letter dated February 27, 2003, Duke Energy Corporation submitted an application for amendments to the renewed facility operating licenses for Catawba Nuclear Station, Units 1 and 2 (Catawba). The proposed amendments would revise the Technical Specifications to allow the use of four mixed oxide (MOX) Lead Test Assemblies (LTAs) at the Catawba station.
The Nuclear Regulatory Commission staffs letter dated April 30, 2004, requested additional information (RAI) on the inclusion of Westinghouse Next Generation Fuel LTAs in the MOX core. That RAI has been updated based on the information that we have obtained up to and including our meeting with your staff on May 14, 2004, in Charlotte, North Carolina. The enclosed RAI will serve as a replacement, in its entirety, to the April 30, 2004, RAI.
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:
As stated cc w/encl: See next page
- See previous concurrence NRR-088 OFFICE PDII-1/PM PDII-1/LA SRXB/SC
- PDII-1/SC(A)
NAME RMartin DClarke FAkstulewicz SCoffin DATE 5/19/04 5/19/04 05/18/04 5/19/04
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. Provide supporting information for the validity of the WRB-2M critical heat flux correlation with respect to the Next Generation Fuel (NGF) design. The information should demonstrate the conservatism of the application of the WRB-2M correlation to NGF, as planned for use in the mixed oxide (MOX) core. This information should include the following Duke calculations and analyses:
a.
NGF-03-127, Next Generation Fuel Program Design Closeout Package, May 20, 2003.
b.
CNC-1553.26-00-0292, Catawba Units 1 and 2 Westinghouse NGF Fuel Assembly T-H Model, July 10, 2003.
c.
CN-17NGF-03-23, Rev 0, Confirming the WRB-2M Applicability to 17 x 17 Next Generation Fuel via CHF [Critical Heat Flux] Testing.
d.
CNC-1553.26-00-0294, Catawba 1 Cycle 15 Thermal-Hydraulic Evaluation, March 20, 2003.
At this time the NRC staff does not request a meeting on this subject.
- 2. 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. Provide design calculations and discuss the analysis of the coolant crossflows for the RFA assemlies that are located between the NGF and MOX LTAs.
- 4. Provide a qualitative comparison of the two methodologies used to analyze the fuel (PAD and COPERNIC).
- 5. Provide the following design document reports for the RFA and NGF for examination by the Nuclear Regulatory Commission (NRC) staff.
a.
DPC-1553.26-00-151, Functionality Evaluation of the Westinghouse Standard Robust Fuel Assembly.
b.
DPC-1553.26-00-0174, Functionality Evaluation of the Westinghouse Next Generation Fuel (NGF) Assembly Design.
- 6. Further specific RAIs:
- a. What is the differential peak cladding temperature ( PCT) for RFA vs. NGF?
- b. Provide the results of the sensitivity studies performed that consider steam generator designs, power shapes and fuel cycle burnup.
c.
Provide the large-break best estimate loss-of-coolant analysis (LB BELOCA) calculation (NF-DA-03-1, Duke Energy Corporation LB BELOCA Evaluation of Final NGF LTAs, January 2, 2003) that necessitates limiting the peaking factor for the NGF LTA.
- d. Clarify what the PCT of record is since WCAP-15540, Best Estimate Analysis of Large Break Loss of Coolant Accident for the McGuire and Catawba Nuclear Stations, Revision 0, July 2000, and calculation number DPC-04-16, 10 CFR 50.46 Annual Notification and Reporting, March 19, 2004, refer to a PCT of 2028 F while the MOX LTA submittal refers to a PCT of 2056 F.
- e. Clarify the steam generator tube plugging level that is assumed. WCAP-15440 refers to ten percent while DPC-04-16 for Catawba Unit 1 refers to five percent.
f.
Submit the results of the calculation DPC-04-16 as it pertains to Catawba Unit 1.
- g. Resubmit in their entirety the responses to RAIs 14, 29, 30 and 31 from Dukes letters dated November 3 and 4, 2004, reflecting the inclusion of NGF fuel in the MOX core.
- h. Discuss whether the Framatome ANP MOX LTA Appendix K analysis considered axial nodalization to capture the effect of the mid-span spacer grids.
- 7. Provide clarification regarding whether Dukes letter dated May 13, 2004, provides the response to the April 30, 2004, RAI 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. Also, for Item number 5, in the May 13, 2004, letter, provide the degree of variation to be allowed by Duke from the responses to Item 2 in Attachment 1 to Dukes letter dated December 10, 2003, with respect to whether the December 10, 2003 power history will be bounding for the MOX LTA cycles.
- 8. Provide a discussion of Dukes reload analysis processes that will ensure that NGF and MOX LTAs will be placed in non-limiting core regions for all cycles that utilize these LTAs, in conformance with Catawba Technical Specification 4.2.1.
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