ML20137S712

Forwards Safety Evaluation Approving Use of Fuel Thermal Performance Code,Frosstey,For Analysis of LOCA Conditions at Low & Moderate Burnups.Methodology Applicable to Other Plants Analyzed by Util

ML20137S712
Person / Time
Site:	Vermont Yankee
Issue date:	09/27/1985
From:	Vassallo D Office of Nuclear Reactor Regulation
To:	Capstick R VERMONT YANKEE NUCLEAR POWER CORP.
Shared Package
ML20137S718	List: ML20137S712 ML20137S733
References
NUDOCS 8509300483
Download: ML20137S712 (2)

Text

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September 27, 1985 Docket No. 50-271 DISTRIBUTION,

. (NL NRC PDR Mr. R. W. Capstick Local PDR ORB #2 Rdg Licensing Engineer .

HThompson OELD Vemont Yankee Nuclear Power Corporation SNorris VRooney 1671 Worcester Road ELJordan JPartlow Framingham, Massachusetts 01701 BGrimes ACRS (10)

Gray File JVoglewede

SUBJECT:

APPROVAL OF USE OF FUEL PERFORMANCE CODE FROSSTEY Re: Vermont Yankee Nuclear Power Station Ry letters dated May 18, and July 27, 1981, you submitted for review reports describing the fuel themal performance code, FROSSTEY. These reports are:

1. YAEC-1249P, " Methods for the Analysis of 0xide Fuel Rod Steady State l Themal Effects (FROSSTEY): Code /Model Description Manual," April 1981 (proprietary)

2. YAEC-1265P, " Methods for the Analysis of Oxide Fuel Rod Steady State Themal Effects (FROSSTEY): - Code Qualification and Application," June 1981(proprietary).

We have completed our review of the above-mentioned proprietary reports and other material you have submitted in support of the use of the fuel performance code, FROSSTEY. You submitted nonproprietary versions of the above reports, identified as YAEC-1249 and YAEC-1265, by letter dated February 5,1985. We have been assisted in our review by the Battelle Pacific Northwest Laboratory. We.have concluded that you have demonstrated an acceptable method of determining a number of fuel thermal and design limits for the Vermont Yankee facility. Although our approval is limited to the analysis of non-loss-of-coolant accident (LOCA) conditions at low and moderate burnups, as described in the enclosed safety evaluation, we consider the restricted methodology equally applicable to other plants (i.e., Yanke'e Rowe, Maine Yankee,'Seabrook) analyzed by Yankee Atomic Electric Corporation.

Sincerely, Original signed by/

g 93gog g %PDR 71 Domenic B. Vassallo, Chief p Operating Reactors Branch #2 Division of Licensing

Enclosure:

Safety Evaluation cc w/ enclosure:

See next page DL:0RB#2 D ORB #2 0 :0RB#2 SNo s:ajs VRooney DVassallo 09/5/85 09/A /85 09/j?/85

Mr. R. W. Capstick Vermont Yankee Nuclear Power Corporation Vermont Yankee Nuclear Power Station cc:

Pr. W. F. Conway W. P. Murphy, Vice President &

President & Chief. Executive Officer Manager of Operations Vermont Yankee Nuclear Power Corp. Vermont Yankee Nuclear Power Corp.

R. D. 5, Box 169 Ferry Road R. D. 5. Box 169 Ferry Road Brattleboro, Vermont 05301 Brattleboro, Vernon~t 05301 Mr. Donald Hunter, Vice President Mr. Gerald Tarrant , Comnissioner Vermont Yankee Nuclear Power Corp. Vermont Department of Public Service 1671-Worcester Road 120 State Street Framingham, Massachusetts 01701 Montpelier, Vermont 05602 New England Coalition en .

Nuclear Pollution Hill and Dale Farm Public Service Board R. D. 2, Box 223 Putney, Vermont 05346 State of Vermont 120 State Street Montpelier, Vermont 05602 Mr. Walter Zaluzny '

Chairman, Board of Selectman Vermont Yankee Decommissioning Post Of' ice Box 116 Alliance Vernon, Vermont 05345 Box 53 Montpelier, Vermont 05602-0053 J. P. Pelletier, Plant Manager Vermont Yankee Nuclear Power Corp.

Post Office Box 157 Resident Inspector Vernon, Vermont 05354 U. S. Nuclear Regulatory Commission Raymond N. McCandless Post Office Box 176 Vernon, Verront 05354 Vermont Division of Occupational

& Radiological Health Vermont Public Interest Administration. Building Research Group, Inc.

10 Baldwin Street 43 State Street Montpelier, Vermont 05602 Montpelier, Vermont 05E02 Honorable John J. Easton Thomas A. Murley Attorney General Regional Administrator State of Vermont Region I Office 109 State Street U. S. Nuclear Regulatory Connission Montpelier, Vermont 05602 631 Park Avenue King of Prussia, Pennsylvania 19406 John A. P.itscher, Esquire Ropes & Gray 225 Franklin Street .

Boston, Massachusetts 02110

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