ML19324C220

Requests Change in Review & Approval Basis from Facility Specific to Generic Because Methods Described in YAEC-1693 & YAEC-1694 Applicable to All BWRs

ML19324C220
Person / Time
Site:	Vermont Yankee
Issue date:	11/06/1989
From:	Stephen Schultz YANKEE ATOMIC ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BVY-89-102, DCC-89-049, DCC-89-49, NUDOCS 8911150228
Download: ML19324C220 (2)

Text

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. . . '- YANKEEATOMICELECTRIC COMPANY "%yll.s?l7lfl" ' '

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C80 Main Street, Bolton, Massachusetts 01740-1398 YdIV 5

usis November 6,1989 BW 89-102 DCC 89-049 1

United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 ,

References:

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

(b) letter, VYNPC to USNRC, FVY 88-89, dated October 13,1988 .

(c) Letter, VYNPC to USNRC, BVY 89-20, dated February 27,1989 )

(d) Letter, USNRC to VYNPC, SER, NVY 82-157, dated September 15,1982 '

(e) Letter, USNRC to TVA, SER, dated April 7,1983 (O IAtter, VYNPC to USNRC, BVY 89 60, June 30,1989 with Topical Reports YAEC-1693 and YAEC-1694.

Subject:

Request to Change the " Method for Generation of One Dimensional Kinetics Data for RETRAN-02" and " Application of One-Dimensional Kinetics to Vermont Yankee Transient Analysis Methods" Reports to Generic Reports

Dear Sir:

Vermont Yankee submitted the topical reports provided in Reference (0 for your review and approval. The repons document the methods for generating the one-dimensional (1-D) input data for RETRAN-02 and analyzing transients with RETRAN-02 with the 1-D kinetics option. The purpose of this letteris to request a change in the tryiew and approval basis from Vermont Yankee specific to generic because the methods described in the reports are applicable to all boiling water reactors (BWR).

The report, " Method for Generation of One-Dimensional Kinetics Data for RETRAN 02,"

YAEC-1694, [ enclosed with Reference (0] provides the methodology used to produce 1-D cross sections and kinetics parameters for input to the 1-D space-time kinetics model of RETRAN-02.

The report, " Application of One-Dimensional Kinetics to Vermont Yankee Transient Analysis Methods," YAEC-1693, [ enclosed with Reference (0] presents the methodology, verification, and justification for application of the RETRAN 021 D kinetics option to the presently approved transient analysis methods. These 1-D kinetics reports use Vermont Yankee as an example in demonstrating and documenting the methods' application. The methods, however, can be applied to all BWR reactors.

The request for a Vermont Yankee specific review was based upon these methods first being applied to Vermont Yankee. However, the methods can be usea to analyze other BWRs.

Therefore, we are requesting to change the review and approval process to that which is applicable to generic topical reports. In this way, we will not have to request additional review for each application.

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United States Nuclear Regulatory Commission November 6,1989 Page 2 l

l We trust that this information supports our nquest; however, should you have any questions on .

this matter, ple,ase contact us.

Very truly yours, YANKEE ATOMIC ELECTRICCOMPANY Stephen P. Schultz Vice President cc: USNRC Region 1 Administrator USNRC Resident Inspector- VYNPS USNRC Project Manager- VYNPS t

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