ML18191A802

Letter Forwarding Copies of General Electric Topical Report Nedo 236017 Mark II Lead Plant Topical Report: Pool Boundary and Main Vent Chugging Load Justification, Dated July, 1977

ML18191A802
Person / Time
Site:	Columbia
Issue date:	10/25/1977
From:	Sobon L General Electric Co
To:	Stolz J Office of Nuclear Reactor Regulation
References
MFN-413-77, NEDE 23617-P, NEDO 236017
Download: ML18191A802 (6)

Text

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GENERAL ELECTRIC TOPICAL REPORT NEDO 23617 "MARK II LEAD PLANT TOPICAL REPORT: POOL BOUNDARY AND MAIN VENT CHUGGING LOAD JUSTIFICATION," DATED JULY, 1977

1) NEDO 24013, "Results of Pressure Suppression Systems Tests Employed by GE, Series No. 2," dated June, 1977

2) NEDO 24014, "Calculation of the Spatial Pressure Distribution When Several Condensation Events are Superimposed," dated June, 1977

3) NEDO 24015, "Load Predictions for the Pressure Suppression System in Two BWR Plants," dated June, 1977

! 4) NEDO 24016, "Pressure Oscillations Due to Condensation of Steam in a Water Pool," dated June, 1977

5) NEDO 24017, "Influence of Backpressure During Chugging,"

dated June, 1977

6) NEDO 23627, "Loads on the Vents'truts Due to Con-densation of Steam in a Water Pool," dated June, 1977 773120124

e GENEIIAL

KlltkkTIj ELECTRIC NUCLEAR ENERGY SYSTEMS DIVISION GENERAL ELECTRIC COMPANY, 175 CURTNER AVE., SAN JOSE, CALIFORNIA 95125 MC 681, (408) 925-3495 NUCLEAR ENERGY PROJECTS DIV ISION MFN-413-77 October 25, 1977 U. S. Nuclear Regulatory Commission Division of Projects Management Office of Nuclear Reactor Regulation Washington, D. C. 20555 Attention: Mr. John F. Stolz, Chief Light Water Reactors Branch No. 1 Gentlemen:

SUBJECT:

ELECTRIC TOPICAL REPORT NEDO 23617

'ENERAL "MARK II LEAD PLANT TOPICAL REPORT: POOL BOUNDARY AND MAIN VENT CHUGGING LOAD JUSTIFICATION," DATED JULY, 1977

References:

1) NEDO 24013, "Results of Pressure Suppression Systems Tests Employed by GE, Series No. 2," dated June, 1977

2) NEDO 24014, "Calculation of the Spatial Pressure Distribution When Several Condensation Events are Superimposed," dated June, 1977

3) NEDO 24015, "Load Predictions for the Pressure Suppression System in Two BWR Plants," dated June, 1977

4) NEDO 24016, "Pressure Oscillations Due to Condensation of Steam in a Water Pool," dated June, 1977

5) NEDO 24017, "Influence of Backpressure During Chugging,"

dated June, 1977

6) NEDO 23627, "Loads on the Vents'truts Due to Con-densation of Steam in a Water Pool," dated June, 1977

7) Letter with report, "General Electric Topical Report NEDE 23617-P, Hark II Lead Plant Topical Report: Pool Boundary and Main Vent Chugging Load Justification, dated July, 1977," to 0. D. Parr frcm L. J. Sobon, dated August 15, 1977 Seventy (70) copies of the subject report (NEDO 23617) are being provided by General Electric for the Mark II Owners Group for your review as part of the Hark. II Containment Supporting Program. This report, which is the non-proprietary version of NEDE 23617-P provided to you earlier this year (reference 7), provides the justification for the chugging loads used in Mark II Containment Design Assessment.

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GfNERAL " 'LECTRIC Mr. John F. Stolz Page 2 October 25, 1977 Also included with this submittal are ten (10) copies each of the non-proprietary version of the documents listed in Appendix 1 of NEDO 23617 (references 1 through 6). The proprietary version of these documents was submitted with NEDE 23617-P (reference 7).

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, Manag r BWR Containment Licensing Containment Improvement Programs LJ S: at/128-129

Enclosures:

130 cc: C. J. Anderson (NRC)

H. C. Brinkmann (Mark II Owners Group)

L. S. Gifford (GE Bethesda)

I. A. Peltier (NRC)

R. L. Tedesco (NRC)

File 3.4.4.7 3.2.7