ML20057B193

Forwards Proprietary Rev 1 of YAEC-1547P-A, Vermont Yankee BWR Loss-of-Coolant Accident Licensing Analysis Method for Info Per 930326 Commitment

ML20057B193
Person / Time
Site:	Vermont Yankee
Issue date:	09/13/1993
From:	Tremblay L VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML19310E795	List: ML20057B193
References
BVY-93-96, NUDOCS 9309200141
Download: ML20057B193 (3)

Text

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VERMONT YANKEE ' '

NUCLEAR POWER CORPORATION

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- M~/ Ferry Road, Brattleboro, VT 05301-7002

[ ENGINE ING OFFICE L' 580 MAIN STREET BOLTON MA 017/.D t500 7794711 September 13,1993 BVY 93 - 96 United States Nuclear Regulatory Commission KlTN: Document Control Desk Washington, DC 20555

References:

a. License No. DPR-28 (Docket No. 50-271)

b. Letter, VYNPC to USNRC, FVY 86-61, dated June 27,1986

c. Letter, VYNPC to USNRC, BVY 92-36, dated March 26,1993

Subject:

RELAP5YA Application for Vermont Yankee LOCA Analysis

Dear Sir:

In Reference (c), Vermont Yankee stated its intention to revise YAEC Repon 1547 to include the supplementary information provided since the original issuance of this repon [ Reference (b)]

regarding the application method and sample calculations. Vermont Yankee committed to provide NRC with a copy of this revised report upon completion. The purpose of this letter is to transmit to NRC for informational purposes this revised report, YAEC-1547P-A, " Vermont Yankee BWR Loss-of-Coolant Accident Licensing Analysis Method", Revision 1, dated August 1,1993.

YAEC Report 1547P-A is a compilation of Vermont Yankee BWR Loss-of-Coolant Accident (LOCA) licensing analysis methodolgy which consists of the original report describing the LOCA method application specific to Vermont Yankee (YAEC-1547), the subsequent NRC review questions and responses related to the methodogy, and the NRC Safety Evaluation Report which approved the use of the methodology forlicensing application at Vermont Yankee.

YAEC Report 1547P-A, along with the RELAP5YA thermal hydraulic analysis computer program and the approved FROSSTEY-2 fuel performance analysis computer program, comprise the Vermont Yankee BWR LOCA licensing analysis methodology.

The enclosed report is being provided to NRC for information purposes only, per our Reference (c) commitment. No action is being requested as a result of this submittal.

The enclosed information is considered proprietary. In accordance with 10CFR2.790(b)(1),

an affidavit attesting to the proprietary nature of the enclosed information is attached.

2 ENCLOSED REPORT IS PROPRIETARY WITHHOLD ENCLOSURE FROM PUBLIC DISCLOSURE 9309200141 930913 PDR ADOCK 05000271 IS %' 'q q g L se J p\ \ 1 P PDR W

United States Nuclear Regulatory Commission September 13,1993 Page 2 of 2 Should you have any questions with regard to this submittal, please contact this office.

Very truly yours, VERMONT YANKEE NUCLEAR POWER CORPORATION N

(WQN .

MWL N .(

Leonard A. Tremblay, Jr. (

Senior Licensing Engineer

Attachment:

Affidavit

Enclosure:

Repon YAEC-1547P-A (PROPRIETARY) cc: USNRC Region I Administrator (without Enclosure)

USNRC Resident Inspector - VYNPS (without Enclosure)

USNRC Project Manager - VYNPS (with Enclosure) l ENCLOSED REPORTIS PROPRIETARY WITHHOLD ENCLOSURE FROM PUBl.lC DISCLOSURE t _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - - . - - - - - - - - - - - - - - - - _ _ _ _ _ _ _ _ _ _ _ - - - - - - - - - - - - - - - - - - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

AFFIDAVIT PURSUANT

)

TO 10CFR2.790 Yankee Atomic Electric Company )

Nuclear Services Division )

Commonwealth of Massachusetts )

Worcester County ) SS:

I, Stephen P. Schultz, depose and say that I am the Vice President of Yankee Atomic Electric Company, duly authorized to make this affidavit, and have reviewed or caused to have reviewed the information which is identified as proprietary. I am submitting this affidavit in accordance with the provisions of 10CFR2.790 of the Commission's regulations for withholding this information.

The information for which proprietary treatment is sought is contained in the enclosures to our lettcr, Vermont Yankee Nuclear Power Corporation to U. S. Nuclear Regulatory Commission, dated September 13,1993.

Pursuant to the provisions of Paragraph (b) (4) of Section 2.790 of the Commission's regulations, the following is furnished for consideration by the Commission in determining whether the infonnation sought to be withheld from public disclosure, included in the above referenced document, should be withheld.

1. The material contained in this transmittal was obtained at considerable expense to Yankee Atomic Electric Company and Vermont Yankee Nuclear Power Corporation and the release of which would seriously affect our competitive position.

2. The material contained in this transmittal is of the type customarily held in confidence and not customarily disclosed to the public.

1

3. This infonnation is being transmitted to the Commission in confidence under the prov sions of 10CFR2.790 with the understanding that it is to be received in confidence by the Commission.

4. This information is for Commission internal use only and should not be released to persons or organizations outside the Directorate of Regulation and the ACRS without prior approval of Yankee Atomic Electric Company. Should it beco 'e necessary to release this information to such persons as part of the review procea!.re, please contact Yankee Atomic Electric Company.

Further deponent sayeth not.

Swom to before me this 13th day of September,1993 Uhs

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f.

Stephen P.' Schultz '

Vice President

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Kathlyn Gatel '

Notary Public .;

My Commission Expires 1/24/97

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