ML18191A227

Mark II Containment Program Report, Single Vent Chugging Model, NEDE-23703-P, Dated Sept. 1977

ML18191A227
Person / Time
Site:	Columbia
Issue date:	11/15/1977
From:	Sobon L General Electric Co
To:	Stolz J Office of Nuclear Reactor Regulation
References
MFN-442-77
Download: ML18191A227 (4)

Text

STANDARD DISTRIBUTTON FOR COMING MATERIAL RELATING TO I EI CONTAIKIENT U.S. NUCI EAR REGULATORY COMMISSION oo NRC FoRM 195 g 7S)

MNIIIdItIMN NRC DISTRIBUTION FoR PART 50 DOCKET MATERIAL TOPICAL REPORT TO: Mr. John F. Stolz General Electric OATE QF OOCUMENT 11/15/77 San Jose, Ca. 95125 L. J. Sobon DATE RECEIVE 0 11/21/77 QAOTORIZE O PAOP INPUT FOAM NUMSEA QF COPIES RECEIVEO E~TE R W QRIG INAI ClcoPY QUNCLASSIFIEO EACLQSU AE ao OESCRIPTION Requesting withholding, pursuant to Section

2. 790, ~ >> trans the fol lowing: Mark II Containment Program Report, "Single *.

Vent Chugging Model," NEDE-23703-P, Dtd, Sept>>,. 1977. forwarded'or NRC review as part of the Mark II Containment Supporting Program, Task A.6 ' >>w/att Affidavit of Glenn G.

Sherwood>> ~ ~ >>notorized 11/17/77 ~ ~ ~ ~ ~

LETTERS OF LICORPORATION HILL BE PLACED IN EACH DOCKET LISTED BELOW>>

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~@/ i I.E C TR I 8 NUCLEAR ENERGY SYSTEMS DIVISION GENERAL ELECTRIC COMPANY, 175 CURTNER AVE., SAN JOSE, CALIFORNIA 95125 NUCLEAR ENERGY MC 681, (408) 925-3495 PROJECTS DIVISION MFN-442-77 November 15, 1977 U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Washington, D.C. 20555 Attention: Mr. John F. Stolz, Chief Light Water Reactors Branch No 3 Division of Reactor Licensing Gentlemen:

SUBJECT:

MARK II CONTAINMENT PROGRAM REPORT, "SINGLE VENT CHUGGING MODEL," NEDE-23703-P, DATED SEPTEMBER, 1977

Reference:

Mark II Lead Plant Topical Report Pool Boundary and Main Vent Chugging Loads Justification, NEDE-23617-P, Dated July, 1977 Seventy (70) copies of the subject report (NEDE-23703-P) are being provided by General Electric for the Mark II Owners Group for your review as part of the Mark II Containment Supporting Program, Task A.6.

This report provides an analytical description of chugging and presents a model for predicting single vent chug frequency (time between chugs) and the frequency content of each chug.

The information in this report supports the related technical discussions presented in the Chugging Loads Justification Report, NEDE-23617-P, (reference) submitted to the NRC in August, 1977.

The enclosed report contains information which the General Electric Company customarily maintains in confidence and withholds from public disclosure. The information has been handled and classsified proprietary by General Electric as indicated in the attached proprietary affidavit, and the request is hereby made that NEDE-23703-P be withheld from public disclosure in accordance with the provisions of 10CFR2.790. The nonpro-prietary version of this report (NEDO-23703) will be provided in December, 1977.

9:.'l ...1.4.' ':. 8 i '.1 IC U. S. Nuclear Regulatory Commission Attention: Mr. John F~ Stolz Page 2 November 15, 1977 Any questions regarding this report should be directed to L. H. Frauenholz, the Mark II Containment Licensing Engineer, (408) 925-2623.

Sincerely, L. J. Sobon, Manager BWR Containment Licensing Containment Improvement Programs LJS:pat/75, 76

Enclosures:

70 Attachment cc: C. J. Anderson (NRC)

H. C. Brinkmann (Mark II Owners Group)

L. S. Gifford (GE, Bethesda)

J. C. Guibert (NRC)

I. A. Peltier (NRC)

R. L. Tedesco (NRC)

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