ML17258A868
| ML17258A868 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 03/11/1981 |
| From: | Maier J ROCHESTER GAS & ELECTRIC CORP. |
| To: | Crutchfield D Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8103170418 | |
| Download: ML17258A868 (6) | |
Text
SUBJECT:
Describes Plans for.Cycle 11 fuel loading. Cycle 11 operation does not" constitute unreviewed safety question or.require changers in>> plant'ech>> Specs; DISTRIBUTION CODE.:
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TITLE!: General Distt ibution for. af ter>> Issuance of Operating Li'censel NOTES!1 copy:SKP Sect
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05000204 REGULATORY INFORMATION DISTRIBUTION SY TEM (RIBS)
ACCESSION NBR>>8103170018 DOC,DATE: 81/03/11 NOTAR ED,'O, DOCKET" 0 FACILs50"240 Robert; Emmet Ginna>> Nuclear Planti Unit ii. Rochester>>
G 05090204 AUTH BYNAME" AUTHOR AFFILIATION MAIEREJ:,E'B Rochester Gas 8 IE'lectr ic "Cot p ~
REC IP, NAMEl RECIPIENT AFFIL>>IATION CRUTCHF IELD E D ~
Operating Reactors Branch 5
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CRUTCHF IKLD 04 INTERNALS D/DIR-CHUM FACOS I8E'6 OEL 11 KG FIiE 01 COPIES L'TTR ENCL'
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I ROCHESTER GAS AND ELECTRIC CORPORATION o
S9 EAST AVENUE, ROCHESTER, N.Y. 14649 JOHN E.
MAILER VICE PRESIDENT TCI.KPHONC AREA COOK 'lid 546-2700 March 11, 1981 Director of Nuclear Reactor Regulation Attention:
Mr. Dennis M. Crutchfield, Chief Operating Reactors Branch No.
5 U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Subject:
Cycle 11 Reload R. E. Ginna Nuclear Power Plant'.
Docket No. 50-244 all;f h',
MAR L 6 1981~
8 UI y NUEEEAII EEOIIUI/~
Dear Mr. Crutchfield:
The purpose of this letter is to describe our plans for Ginna Cycle ll, which will commence following our April, 1981 refueling outage.
The fuel design and cycle design, including the impact, on previously performed safety analyses, has been reviewed by the Plant Operations Review Committee and the Nuclear Safety Audit and Review Board and it has been determined, pursuant to 10 CFR 50.59, that Cycle 11 operation does not constitute an unreviewed safety question or require a change in the Technical Specifications.
The Cycle 11 fuel loading will consist of 117 Exxon Nuclear fabricated fuel assemblies and 4 Westinghouse fabricated assemblies.
The Exxon Nuclear assemblies include 24 fresh Region 13 fuel assemblies, 4 fresh Region 12 assemblies, 32 one cycle assemblies, 40 two cycle assemblies, and 17 three cycle assemblies.
The four mixed oxide Westinghouse assemblies have been in the reactor one cycle.
The Region 13 fuel being loaded is identical to previously loaded Exxon Nuclear fuel except that the guide tubes are zircaloy instead of stainless steel'and except for minor changes in the top nozzle to accommodate the zircaloy guide tubes.
The standard Exxon Nuclear fuel design for PWRs includes zircaloy guide tubes, similar to the Ginna Region 13 design.
Compatibility of the Region 13 fuel with other fuel and core components was confirmed, it was confirmed that the consequences of previously analyzed accidents were not increased, and it was confirmed that the Region 13 fuel design met previously approved limits, as approved by Amendment No.
19 to the Ginna license, transmitted by NRC letter dated May 1, 1978 regarding the initial Exxon Nuclear reload.
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r ROCHESTER GAS AND ELECTRIC C RP.
DATE March 11, 1981 To Mr. Dennis M. Crutchfield SHEET NO.
Cycle 11 is being designed for a length of 9200 MWD/MT assumin'g a Cycle 10 length of 8600 MWD/MT.
The Cycle 11 analysis is also valid for a band of +700 MWD/MT and -600 MWD/MT about the nominal Cycle 10 exposure.
Cycle 11 operation will result in a peak assembly burnup of less than 35000 MWD/MTU and a discharge region average burnup of less than 32000 MWD/MTU.
At these
- levels, the fuel complies with previously approved design criteria.
The fuel and cycle neutronics and operating parameters have been reviewed and it has been determined that all previous transient and accident analyses remain valid for Cycle 11 opera-tion.
On the basis of the evaluation, it was determined that Cycle 11 operation did not constitute an unreviewed safety question or require a change in the plant Technical Specifications.
Very truly yours, J.
E. Maier
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