ML17037B885

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Letter Regarding a GE Report, Analytical Model for Estimating Drag Forces on Rigid Submerged Structures Caused by LOCA and Safety Relief Valve Ramshead Air Discharges, NEDO-21471, Dated September, 1977
ML17037B885
Person / Time
Site: Nine Mile Point, Columbia, Limerick, LaSalle, Zimmer, Shoreham, Bailly  File:Long Island Lighting Company icon.png
Issue date: 01/27/1978
From: Sobon L
General Electric Co
To: Stolz J
Office of Nuclear Reactor Regulation
References
NEDO-21471
Download: ML17037B885 (4)


Text

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STANDARD DISTRIBUTION INCOMING MATERIAL RELATING TO II CONTAINMENT NRC FORM 195 I2-78)

U4 NUCLEAR REGULATORY C MISSIO 0 jgg/<+ c NRC DISTRIBuTION FoR PART 50 DOCKET MATERIAL RBMiNXLK TOP ICAL REPORT Q I.ETTER QORIQINAL Qcopv QNOTORIZEO QUNCLASSIFIED Mr. John F. Stolz PROP INPUT FORM FROM:

General Electric San Jose, Ca.

95125 L. J.

Sobon OATS OF OOCUMENT 01/27/78 OATS RECEIVED 02/01/78 NUMBER OF COPIES RECEIVEO OESCRIPTION G,

E ~ Rept entitled:

"AnalyticalModel For Estimating Drag Forces On Rigid Submerged Structures Caused By LOCA And Safety R'elief Ualve Ramshead Air Discharge

~ NED0-21471, dtd September, 1977.

~ ~ ~

jan 02/02/78 1p LETTERS OF INCORPORATION WILL BE PLACED IN EACH DOCKET LISTED BELOW'OTE:

CYS WILL BE PLACED.IN.THE LPDR THE FOLLOWING:

ZIMMER 50-358 NINE MILE PO 50-410 LIMERICK 50-352/353 WPPS-2 50-397 BAILLX 50-367 SHOREHAM. 40-3&

LA SALLE 50-373/374 1/2tt B4' MJ FOR ACTION/INFO RMATION CE S

2 W 9 NRC PDR LPDR'S 7

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NUCLEAR ENERGY PROJECTS DIVISION MFN-040-Z8 GENERAL ELECTRIC COMPANY 175 CURTNER AVE., SAN JOSE, CALIFORNIA95125 MC 681, (408} 925-3495 January 27, 1978 U. S. Nuclear Regulatory Commission Division of Reactor Licensing Office of Nuclear Reactor Regulation Washington, D.

C.

20555 Attention:

Mr. John F. Stolz, Chief Light Water Reactors Branch No.

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Gentlemen:

SUBJECT:

GENERAL ELECTRIC REPORT, "ANALYTICALMODEL FOR ESTIMATING DRAG FORCES ON RIGID SUBMERGED STRUCTURES CAUSED BY LOCA AND SAFETY RELIEF VALVE RAMSHEAD AIR DISCHARGES,"

NEDO- : 21471, DATED SEPTEMBER, 1977 One hundred (100) copies of the subject report (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.6.

This report describes methods for estimating drag forces on rigid struc-tural members submerged in a suppression pool caused by the air discharge resulting from a Loss of Coolant Accident (LOCA) or Safety/Relief Valve Ramshead,Discharge.

A proprietary Appendix A to this repor t (NED0-21471), submitted by separate letter, contains the proprietary information referenced in the text of this report.

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

Sincer y

L. J.

Sobon, Manager BWR Containment Licensing Containment Improvement Programs LJS:jg/101

Enclosures:

100 cc:

C. J.

Anderson (NRC)

L. S. Gifford (GE Bethesda)

I. A. Peltier (NRC) 78033OO35 H. C. Brinkmann (Mark II Owners Group)

J.

C. Guibert (NRC)

R. L. Tedesco (NRC)