ML18191A181

Gen. Station - Proprietary Appendix a (NEDE-21471P) to GE Report, Analytical Model for Estimating Drag Forces on Rigid Submerged Structures Caused by LOCA and Safety/Relief Valve Ramshead Air Discharge, NEDO-21471, Sep. 1977

ML18191A181
Person / Time
Site:	Columbia
Issue date:	02/24/1978
From:	Sobon L General Electric Co
To:	Stolz J Office of Nuclear Reactor Regulation
References
Download: ML18191A181 (5)

Text

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TOP ICA REPORT'ATS TO: Mr John F ~ Stol@ General Electric OR OOCUMSNT'2/24 San Jose, CA 95125 78 CATE L>> J>> Sobon RSCSIVSQ'3 08 78 Q~~ 0 NOTO 8 iZSD iNPUT FORM NUMSSR Oi>> CCITIES RSCSIVEO QORlQWAI . ClUNCLASS iRiSn QCCi ~ SIST~

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BEN'L ELECTR C NUCLEAR ENERGY P R0 J ECTS DIVISION GENERAL ELECTRIC COMPANY, 175 CURTNER AVE., SAN JOSE, CALIFORNIA 95125 MC 681, (408) 925-3495 MFN-083- 78 February 24, 1978 1

U. S. Nuclear Regulatory Commission Division of Reactor Licensing Office of Nuclear Reactor Regulation Washington, D. C. 20S55 Attention: Mr. John F. Stolz, Chief Light Water Reactor"Branch No. 1

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Gentlemen:

SUB J ECT: PROPRIETARY APPENDIX A (NEDE-21471P) TO GENERAL ELECTRIC REPORT, "ANALYTICALMODEL FOR ESTIMATING DRAG FORCES ON RIGID SUBMERGED STRUCTURES CAUSED BY LOCA AND SAFETY/

RELIEF VALVE RAMSHEAD AIR DISCHARGE," NED0-21471, DATED SEPTEMBER 1977

Reference:

1) Letter,.with reports, "General Electric Report,

'Analytical Model for Estimating Drag Forces on Rigid Submerged Structures Caused by LOCA and Safety Relief Valve Ramshead Air dated September 1977," to J. F. Stolz Discharges,'ED0-21471, (NRC) from L. J. Sobon (GE), dated January 27, 1978.

2) Letter, with reports, "General Electric Repor t,

'Analytical Model for Liquid Jet Properties for Predicting Forces on Rigid Submerged dated September 1977, " to J . F. Stolz Structures,'EDE-21472, (NRC) from L. J. Sobon (GE), dated January 26, 1978.

3) Letter, with reports, "Mark II Pressure Suppression Containment Systems - 'Loads on Submerged Structures-Application Memorandum,'EDE-21730, dated December 1977" to J. F. Stolz (NRC) from L. J. Sobon (GE) dated January 31, 1978.

One hundred (100) copies of the subject Proprietary Appendix A (NEDE-21471P) to NEDO-21471 are being provided by General Electric for the Mark I and Mark II Owners Groups for your review as part of the respective Containment Programs, Tasks 5.14 and A.5*. This appendix provides the proprietary information noted in Report NEDO-21471 (Reference 1).

• References 1 and 2 incorrectly listed Task A.6 vs. A.S.

GENERAL ' ELECTRIC Mr. J. F. Stolz USNRC Page 2 February 24, 1978 The enclosed Appendix A to NEDO-21471 contains information which the General Electric Company customarily maintains in confidence and with-holds from public disclosure. This Appendix and the information sub-mitted with the associated reports NEDE-21472 (Reference 2) and NEDE-21730 (Reference 3) have been handled and classified proprietary by General Electric as indicated in the Proprietary Affidavit submitted with NEDE-21472 (Reference 2), and the. request is hereby made that Appendix A (NEDE-21471P) to NEDO-21471 be withheld from public disclosure in accordance with the provisions of 10CFR2.790. The non-proprietary version of -this Appendix was included in NEDO-21471 on the pages corresponding to the pages of the Appendix.

Any questions regarding this report should be directed to L. H. Frauenholz, the "Mark II Containment Licensing Engine'er, (408) 925-2623.

Sincerely L. J. Sobon, Manager BWR Containment Licensing LJS:sj/108-109

Enclosures:

100 cc: C. J. Anderson, NRC L. S. Gifford, GE, Bethesda I. A. Peltier, NRC H. C. Brinkmann, Mark II Owners Group J. C. Guibert, NRC R. L. Tedesco, NRC C. I. Grimes, NRC File 2.10

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