ML19290A241

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Replaces 790607 Memo to File W/Corrected & Updated Info Re Principal Contact Made W/External Organizations During TMI Accident
ML19290A241
Person / Time
Site: Crane Constellation icon.png
Issue date: 08/30/1979
From: Levine S
NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES)
To:
NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES)
Shared Package
ML19290A225 List:
References
NUDOCS 7910240207
Download: ML19290A241 (1)


Text

,

UNITED STATts f* ***Vr NUCt. EAR REGULATORY COMMISSION f

fg WASHINGTON, D. C. 20565 y

AUG 3 01979 MEMORANDUM FOR:

Fi1e FROM:

Saul Levine, Director Office of Nuclear Regulatory Research

SUBJECT:

PRINCIPAL CONTACT MADE WITH EXTERNAL ORGANIZATIONS 00 RING TMI 2 ACCIDENT This memo replaces my June 7, 1979 memo to File with corrected and updated information.

I spoke with Robert Rit:mann of Science Applications concerning H 2 generati n rates in TMI 2 vessel in the period March 31 2

1.

and 0 He informed me that, although one could calculate an April 1.

increase of 1", 0 per day without considerations of a ref rmation 2

rate of H, and 0., due to hubble back pressure, that the 1 percent rate was probably too hign.

He also said that he felt the rate was probably no higher than 0.1 percent per day and could be zero, but that he did not have the data to calculate an explicit rate.

2.

I spoke with Dr. Kouts of BNL several times on Saturday and Sunday concerning the possibility of a hydrogen explosion in the reactor vessel.

His view as that this would not be likely.

He referred me to Harold Schwar 2 as a source for precise information.

IalsospokewithHaroldSchwark: of SNL, I believe on Sunday 3.

afternoon, April 1.

He said that he believed that not only would cubble, but that whatever H, and 0,, not be accumulating in the H 0;wereintheouoblewouldbe$epletedatfairlyrapidrates.

Ha said that he would calculate the rates and call me later on Sunday.

On Sunday evening he told us that he had completed his calculations which confirmed that 0 could not accumulate in itwouldinfac!bedepleted.

the bubble and that 4.

I spoke with James Proctor of the Naval Surface Weacons Center aoout the effects of a hydrogen explosion on vessel integrity.

Me said the cylindrical portion of the vessel would be subjected to about 5 percent strain, which should not ':reak it, ano thtt it would also be subjected to a lifting force of acout 1.5 x 100 lbs.

He could not calculate whether the main loop ciping could hcid the

~

vessel down when subjected to this force, since he did not hA copy of Mr. Proct 186 detailed.tnformation on plant layout.

memo is attacned.

Qw 79102 4 o rA7

' Saul Levine, Director

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I r Reculator Research