ML20066B228

Forwards Topical Rept RXE-90-005, Control Rod Worth Analysis, Per Proprietary Topical Rept RXE-89-003-P, Steady State Reactor Physics Methodology, Submitted on 890731

ML20066B228
Person / Time
Site:	Comanche Peak
Issue date:	12/28/1990
From:	William Cahill TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20066B230	List: ML20066B228 ML20066B239
References
TXX-901051, NUDOCS 9101070008
Download: ML20066B228 (2)

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_ Log # TXX 901051 File # 10010 2 C 915 1UELECTRIC

{ilg Clyltft; December 28, 1990 U. S. Nuclear Regulatory Commission l Attn: Document Control Desk .,

Washington, D.C. 20555  ;

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

DOCKET N0. 50 445 AND 50-446 RELOAD-ANALYSIS PROGRAM RXE-90-005,_ CONTROL ROD WORTH ANALYSIS Gentlemen:

The TU Electric reload analysis program was discussed with the NRC staff in_

December, 1988, and again in July, 1990, Following the July-discussions,_the i schedule for submittal of the TV Electric topical reports -was-provided in TXX-90342. Consistent with that schedule, attached for your review and approval is the Control Rod Worth Analysis' report.

The Control Rod Worth Analysis report, RXE-90-005. is an extension of'the .

methodology presented in the_ topical report " Steady State Reactor Physics '

Hethodology,"-RXE-89-003 P, which was submitted to you on July 31, 1989. This report contains comparisons of calculated and measured control = rod bank worths for three PWRs including Comanche ~ Peak Steam Electric. Station (CPSES). In addition, the test procedures are summarized for control rod bank = worth- -

measurements using both the boron dilution and the control rod swap techniques.

Test review and acceptance criteria .are identified.

Approval of the enclosed report, along with. approvals;of those previously submitted and those yet to be' submitted, are required to allow-TV Electric to

. license cycle-3 operation without recourse to a nuclear _ fuel vendor. -(Cycle 3 4 refueling begins in September, 1992.)' In addition, the licensing _ basis of_the TU Electric Westinghouse : integrated Cycle ~2 program relies on the methodologies presented in the. Steady State Reactor Physics Methodology- report and the Control Rod Worth Analysis report. TV Electric' requests that the NRCl review and approve _the enclosed report-by--September.-1991'.

9101070008 901228 (

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(; . 400 North Olive Street LB. 81 Dallas, Texas 75201:

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TXX-901051 Page 2 of 2 )

l Should you have any questions or comments regarding the attached report or the TV Electric Reload Analysis Program, please contact Jimmy D. Seawright (214) 812-4375 or Mickey R. K111 gore (214) 812 8271 of my staff.

Sincerely, Thi[if,,./,).. 'ML

, C /l'*ll >[). A Willi am J. Cahill , Jr.

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By[I' ' < -( '

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' RogerD, Wal ker Manager of Nuclear Licensing 3

JDS/gj Attachment

, c - Mr. R. D. Hartin, Region IV l

Resident Inspectors, CPSES (3)

Mr. J. W. Clifford, NRR l

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