ML19289C460
| ML19289C460 | |
| Person / Time | |
|---|---|
| Issue date: | 12/27/1978 |
| From: | Eisenhut D Office of Nuclear Reactor Regulation |
| To: | Sobon L GENERAL ELECTRIC CO. |
| Shared Package | |
| ML19289C461 | List: |
| References | |
| TASK-A-07, TASK-A-7, TASK-OR NUDOCS 7901120226 | |
| Download: ML19289C460 (2) | |
Text
UMTED STATES f
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NUCLEAR REGULATORY COMMISslON
{ p p, f [, i W ASHINGTON, D. C. 20555 5
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DEC 2 71978 General Electr4e Cormany ATTN: Mr. L. J. Sobon, Manager BWR Containment Licensing MC905 175 Curtner Avenue San Jose, CA 95125 Gentlemen :
SUBJECT:
REVIEW 0F GENERAL ELECTRIC TOPICAL PEPORT NED0-21052,
" MAXIMUM DISCHARGE RATE OF LIQUID-VAPOR MIXTURES FROM VESSELS" We have completed our review of the General Electric Topical Report NED0-21052, " Maximum Discharge Rate of Liquid-Vapor Mixtures from Vessels," as it is to be applied to determine the mass and energy release rate resulting from a design basis accident for Mark I containment reso nse analyses.
Based on our review, we conclude that the model descri:ed in NED0-21052, in conjunction with its method of application for Mark I containment response analyses, are acceptable for reference as specified in the enclosure.
During the course of our review, we determined that additional justi-fication would be necessary to support application of this model to break sizes and types other than the double-ended rupture of a recircu-latien line in a Mark I plant. We understand that you wish to pursue the application of this model for other sizes and types of breaks.
Therefore, when you provide the additional information required, as discussed in our letter dated January 30, 1978, the staff will continue its review of the subject topical report. Such information should be submitted to the Division of Project Manages 1ent.
The staff does not intend to repeat its review of this topical report when it appears as a reference for a Mark I containment response analysis, except to assure that the model is applicable to the specific plants involved.
Should the regulatory criteria or regulations change such that our conclusions concerning this topical report become invalid, you will be notified and will be given the opportunity to revise and resubmit your topical report for review, should you so desire.
D00h
s 2-In accordance with established procedure, we request that General Electric issue.a revjsed version of the topical report to include any supplementary information provided for our review, this
/
acceptance letter, and the NRC staff evaluation.
S ncerely, D. Eisenhut cting Assista t Director for Systems and
- Projects, Division of Operating Reactors
Enclosure:
Topical Report Evaluation cc:
Mr. L. Gifford General Electric Company 4720 Montgomery Lane Bethesda, FD 20014
._