ML20054M236

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Forwards NEDO-21471-01, Analytical Model for Estimating Drag Forces on Rigid Submerged Structures Caused by LOCA & Safety Relief Valve Ramshead Air Discharges,Suppl for X-Quencher Air Discharges
ML20054M236
Person / Time
Site: 05000447
Issue date: 06/18/1980
From: Buchholz R
GENERAL ELECTRIC CO.
To: Parr O
Office of Nuclear Reactor Regulation
Shared Package
ML20054M237 List:
References
MFN-112-80, RHB-046-80, RHB-46-80, NUDOCS 8207120147
Download: ML20054M236 (1)


Text

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GENER AL h ELECTRIC NUCLEAR POWER SYSTEMS DIVISION GENERAL ELECTRIC COMPANY,175 CURTNER AVE.. SAN JOSE, CALIFORNIA 95125 MC 682, (408) 925-5722 RHB-046-80 MFN-112-80 June 18, 1980 ,

U. S. Nuclear Regulatory Commission Division of Project Management Office of Nuclear Reactor Regulation Washington, D. C.

Attention: Olan D. Parr, Chief Light Water Reactor Branch No. 3 Gentlemen:

SUBJECT:

GENERAL ELECTRIC REPORT NED0-21471-01, " ANALYTICAL MODEL FOR ESTIMATING DRAG FORCES ON RIGID SUBMERGED STRUCTURES CAUSED BY LOCA AND SAFETY RELIEF VALVE RAMSHEAD AIR DISCHARGES - SUPPLEMENT FOR X-QUENCHER AIR DISCHARGES" Twenty copies of tha report NE00-21471-01, " Analytical Model for Estimating Drag Forces on Rigid Submerged Structures Caused by LOCA and Safety Relief Valves Ramshead Air Discharges - Supplement for X-Quencher Air Discharges" are being provided for your information. The report is referenced in Appendix 38, entitled " Containment Loads", of the Final Design Approval General Electric Standard Safety Analysis Report (Docket Number FTN-50-447). The enclosed report describes a method for estimating drag forces on rigid submerged structures due to air bubble oscillations resulting from a safety relief valve discharge through an X quencher.

Any questions on this report should be directed to Mr. L. D. Steinert (408) 925-2637.

Very truly yours,

(.G. d W W OLull R. H. Buchholz, Manager BWR Systems Licensing Safety and Licensing Operation RHB: rf/723 Enclosure cc: L. S. Gifford (GE-Bethesda)

H. Chau (Mark II Owners Group)

I J. Kudrick (NRC) 4 pDl W. Butler (NRC) t 8207120147 eove, .,

r'DR ADOCK 05000447 P PT !