GO2-81-552, Forwards Proprietary & Nonproprietary Versions of Summary Rept, Comparison of Condensation Oscillation & Chugging Loads for Assessment of WPPSS Nuclear Project 2. Proprietary Version Withheld (Ref 10CFR2.790)

Forwards Proprietary & Nonproprietary Versions of Summary Rept, Comparison of Condensation Oscillation & Chugging Loads for Assessment of WPPSS Nuclear Project 2. Proprietary Version Withheld (Ref 10CFR2.790)

ML17276A554
Person / Time
Site:	Columbia
Issue date:	12/24/1981
From:	Bouchey G WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	Schwencer A Office of Nuclear Reactor Regulation
Shared Package
ML17276A557	List: GO2-81-552, Forwards Proprietary & Nonproprietary Versions of Summary Rept, Comparison of Condensation Oscillation & Chugging Loads for Assessment of WPPSS Nuclear Project 2. Proprietary Version Withheld (Ref 10CFR2.790) ML17276A562
References
GO2-81-552, NUDOCS 8112300024
Download: ML17276A554 (8)

Text

W AOCESSION NBR FACIL:50 397 AUTH'AME BOUCHEYgG AD, "R EC I P ~ NAtlE SCHihENCERgA ~

REGULA'TO Y

INFORMATION DISTRIBUTION SY TEN (RIDS) 61 12300024 DOC ~ DATE ~ 81/12/24 NOTARIZED YES DOCKET l<PPSS Nuclear Project<

Unit 2i Kashin'gton 'Public Powe 05000397 AUTHOR AFFILIATION Washington Public iPower Supply System RECIPIENT AFFILIATION

'icensing Branch 2

SUBJECT:

Forwards proprietary 8 nonproprietary versions of summary repti "Comparison of Condensation Ascillation '8 Chugging Loads for Assessment of NPPSS Nuclear Project 2."

Proprietary version withheld (ref 10CFR2,790).

DISTRIBUTION CODE::PA01S iCOPIES RECEIVED:LTR J ENCL SIZE:,:9+ t'.o TITLE: Proprietary Review Distribution-Operating 'Reactor NOTES:2 copies all matl:Pt

~

05000397 INTERVAL: E 0

FILE

+

1 1

Q)g g7 10 10 1

0 EXTERNAL: ACRS NRC PDR RECIPIENT

'COPIES ID CODE/NAVE LTTR.ENCL ACTIOV:

LIC BR 02 BC~~I) 7 7

LPDR NTIS 1,

0 1

0 RECIPIENT COPIES ID CODE/NAME LT'TR ENCL AULUCKRR, -ff'ON 1

1 IE

~ 03m9 2

2 pe,g 07

)S82

=

z'r gy TOTAL NUMBER OF COPIES REQUIRED:

LTTR P5 ENCL PI

I e

o 1

tt l

I o

'I 4

P r

II it

~

m

'I' lt

Washington Public Power Supply System P.Q. Box 968 3000 George Washington Way Richland, Washington 99352 (509) 372-5000 Docket No. 50-397 December 24, 1981 G02-81-552 Mr. A. Schwencer, Director Licensing Branch No.

2 Division of Licensing Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.

20555

Subject:

NUCLEAR PROJECT NO.

2 CONDENSATION OSCILLATION LOAD FOR WNP-2

Reference:

G02-81-239, August 31,

1981, G.

D. Bouchey, Supply System, to R.

L. Tedesco, NRC The Reference letter advised you that the Mark II Owners group generic con-densation oscillation (CO) load definition was excessive for the WNP-2 plant, that preliminary studies indicated CO loading should not be a governing load for plant assessments, and that a final report summarizing the results of these studies would be submitted by the end of 1981.

This issue was discussed further with the NRC staff and consultants at the Containment Systems Branch review meeting in Richland during the week of September 14,

1981, and is cur-rently identified as an open item in the draft SER for WNP-2.

Transmitted herewith is the final report, "Comparison of Condensation Oscilla-tion and Chugging Loads for Assessment of WPPSS Nuclear Project No. 2", pre-pared on our behalf, by Burns and Roe, Inc.

This report summarizes results of studies performed to evaluate data from single-vent tests (4TCO), to review results of multi-vent tests (JAERI), and to compare CO and chugging loads.

As concluded in the report, these studies confirm that the CO load does not represent a governing load for WNP-2, and consequently need not be considered in assessments of structures, piping, and equipment.

8112300024 811224~

PDR ADOCK 0500035'7 I

A

(

PORE

i VI I

li IJ~

4 V ~

~'i.~lj<l~+X1tC

~ 'Vi>~4I44g,~P'I' V

,I',".CZy QP)0

~< <fPj<

'/Y~g)~a, I't

Mr. A. Schwencer Page 2

December G02 Please note that both a proprietary and a nonproprietary version of the CO report are enclosed.

The proprietary version includes figures which have been designated proprietary by JAERI, the General Electric Company, and by Burns and Roe, Inc. Consistent with the provisions under which this information was made available to the Supply System and to Burns and

Roe, and as attested to by the attached affidavit, we request that the proprietary version of this report be withheld from public disclosure in accordance with the provisions of 10CFR2.790.

We would be pleased to meet with the NRC staff and consultants, at your earliest convenience, to respond to any questions or to further discuss the contents of the enclosed report.

Very truly yours, G.

D. Bouchey Deputy Director, Safety and Security EAF:kjf

Enclosure:

Summary Report, "Comparison of Condensation Oscillation and Chugging Loads for Assessment of WPPSS Nuclear Project No. 2" cc:

R. Auluck -

NRC EF Beckett - Nuclear Projects, Inc.

'WS Chin - BPA AI Cygelman - B&R Site OK Earle - B&R RO F. Eltawila NRC R. Feil -

NRC Site JA Forrest - B&R RO J. Lehrer - Brookhaven National Lab.

ND Lewis - EFSEC FA MacLean - General Electric JC Plunkett, Jr. - NUS NS Reynolds - D&L S. Smith - General Electric RE Snaith - B&R NY JJ Verderber B&R NY WNP-2 Files w/proprietary report (1 copy) w/o attachment w/o attachment w/o attachment w/o attachment w/proprietary report (1 copy) w/o attachment w/o attachment w/proprietary report (2 copies) w/o attachment w/o attachment w/o attachment w/o attachment w/o attachment w/o attachment w/o attachment

a i'

,'t f I

t I'

Jt

STATE OF WASHINGTON)

)

ss COUNTY OF BENTON

Subject:

Condensation Oscil 1 ation l,oad for WNP-2 I, G.

D. Bouchey, being duly sworn, subscribe to and say that I am the Deputy Director, Safety and Security, for the WASHINGTON PUBLIC POWER SUPPLY SYSTEM, the applicant herein; that I have full authority to execute this oath; that I have reviewed the foregoing; and that to the best of my knowledge, information and belief the statements made in it are true.

The information contained in the attached includes figures which have been designated proprietary by JAERI, General Electric Company and Burns'nd Roe, Inc.

DATED

, 1981 G.

D.

Bouc ey On this day personally appeared before me G. 'D. Bouchey to me known to be the individual who executed the foregoing instrument and acknowledged that he signed the same as his free act and deed for the uses and purposes therein mentioned.

GIVEN under my hand and seal this 9 9 day of

, 1981.

I

,1 N

ary Publ ic in and for the State of Washington Residing at Qc.

c

, ~

~,5~ah'n I