ML20236M811

Summary of 870730 Meeting W/Util to Discuss Plans for Cycle 3 Fuel Reload.Only Differences in New Fuel Are That Fuel Enrichment Will Be Changed & Some Fuel Assemblies Will Contain More Gadolinia Rods

ML20236M811
Person / Time
Site:	Grand Gulf
Issue date:	08/05/1987
From:	Kintner L Office of Nuclear Reactor Regulation
To:	Office of Nuclear Reactor Regulation
References
NUDOCS 8708110249
Download: ML20236M811 (3)

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August 5, 1987 Docket No. 50-416 DISTRIBUTION XDocket Filen" E. Jordan

'"NRC PDR"' J. Partlow local PDR L. Phillips LICENSEE: System Energy Resources, Inc. PD22 Rdg. ACRS (10)

L. Kintner B. Troskoski-FACILITY: Grand Gulf Nuclear Station, Unit 1 (GGNS-1) OGC-Bethesda

SUMMARY

OF JULY 30, 1987 MEETING REGARDING SECOND FUEL RELOAD The purpose of the meeting was to discuss the licensee's plans for the GGNS-1 Cycle 3 fuel reload. Participants for the NRC staff were L. Phillips and L. Kintner. Participants for the licensee were Y. Balas and I. Nir.

The licensee stated that the only-differences in the new fuel for the Cycle 3 reload are that the fuel enrichment will be changed and 'some of the fuel assemblies will contain more gadolinia rods. The only changes to Technical Specifications will be the addition of two curves of heat generation rate versus fuel exposure (MAPLHGR curves) for the two additional types of fuel assemblies.

The licensee also described the use of computer codes for the fuel hot channel model and the loss of feedwater heating (LFWH) transient. The staff-approved XCOBRA-T Code was used for the hot channel model. For the LFWH transient, the licensee plans to use the plant-specific analyses submitted September 5, 1986 for GGNS-1 Cycle 2 reload, Confirmatory analyses made for four Cycle 3 j exposures show that the results are bounded by the Cycle 2 LFWH transient

• analyses. The staff connented, and the licensee agreed, that the results of the LFWH transient analyses are weakly dependent on fuel exposure and are.

therefore not cycle independent as indicated in the licensee's July 24, 1987 letter. To demonstrate that the results of Cycle 2 ca'culations are bounding )

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! for burnups beyond Cycle 3, the licensee may calculate LFWH transients for '

burnups up to and including an equilibrium core.

The staff concluded that because changes to the Technical Specifications and confirmatory analyses of the loss of feedwater heating transient are necessary, the Cycle 3 reload analyses should be submitted for staff approval. The staff i said that based on a need for the amendment for startup in early January 1988, a submittal of the reload application by November 6, 1987 would allow the staff ample time for review. This estimated time to review and process the 1

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i 8708110249 DR 070005 ADOCK 05000416 PDR

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application is based on the assumption that the only changes will be the two new MAPLHGR curves and confirmatory analyses of the LFWH transient for fuel burnups expected for Cycle 3 or up to and including an equilibrium core, if desired. If additional changes are proposed, the application should be submitted sooner to allow more time for review.

/s/

Lester L. Kintner, Senior Project Manager Project Directorate 11-2 Division of Reactor Projects-I/II cc: See next page

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Mr. Oliver D. Kingsley, Jr.

System Energy Resources, Inc. Grand Gulf Nuclear Station (GGNS) cc:

Mr. Ted H. Cloninger Mr. C. R. Hutchinson Vice President, Nuclear Engineering GCNS General Manager and Support System Energy Resources, Inc.

System Energy Resources, Inc. Post Office Box 756 Post Office Box 23054 Port Gibson, Mississippi 39150 Jackson, Mississippi 39205 Robert B. McGehee, Esquire The Honorable William J. Guste, Jr. j Wise, Carter, Child, Steen and Caraway Attorney General P.O. Box 651 Department of Justice Jackson, Mississippi 39205 State of Louisiana Baton Rouge, Louisiana 70804 Nicholas S. Reynolds, Esouire Bishop, Liberman, Cook, Purcell Office of the Governor and Reynolds State of Mississippi 1200 17th Street, N.W. Jackson, Mississippi 39201 Washington, D. C. 20036 Attorney General Mr. Ralph T. Lally Gartin Building Manager of Quality Assurance Jackson, Mississippi 39205 Middle South Utilities System Services, Inc.

P.O. Box 61000 Mr. Jack McMillan, Director New Orleans, Louisiana 70161 Division of Solid Waste Management Mississippi Department of Natural {

Mr. John G. Cesare Resources {

Director, Nuclear Licensing and Safety Bureau of Pollution Control l System Energy Resources, Inc. Post Office Box 10385  !

P.O. Box 23054 Jackson, Mississippi 39209 Jackson, Mississippi 39205 Alton B. Cobb, M.D.  !

Mr. R. W. Jackson, Project Engineer State Health Officer Bechtel Power Corporation State Board of Pealth 15740 Shady Grove Road P.O. Box 1700 Gaithersburg, Maryland 20877-1454 Jackson, Mississippi 39205 Mr. Ross C. Butcher President Senior Resident Inspector Claiborne County Board of Supervisors U.S. Nuclear Regulatory Coninission Port Gibson, Mississippi 29150 Route 2 Box 399 Port Gibson, Mississippi 39150 Regional Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta Street, N.W., Suite 2900 Atlanta, Georgia 30323 Mr. James E. Cross i GGNS Site Director

! System Energy Resources, Inc.

l P.O. Box 756 l

Port Gibson, Mississippi 39150 I

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