ML19290A261
| ML19290A261 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 08/30/1979 |
| From: | Budnitz B NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | Mattson R Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19290A225 | List: |
| References | |
| NUDOCS 7910240321 | |
| Download: ML19290A261 (3) | |
Text
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bM7 i
7 TO:
Roger MAttson FRMO:
Bob Budnitz Succested changes in ' final draft' dated 30 August Major changes:
1)page 2, second entry: (beginning "Lanning(memo) - requested....)
line 4 of second paragraph reads "was approximately 100 cubic feet and increasing."
That should be 1000 cubic feet.
I have checked this with Lanning and he and I agree that that is the correct number.
- 2) pace 21, entry beginning "about 1345 - Commission Meeting...."
Second sentence beginning "Budnitz gives briefing...".
This discussion is not correct as I read the transcript or as I recall the briefing.
we didn't conclude that the mixture then contained 3-4 % oxygen, in fact that discussion never came up at aI The discussion was about flammability limits, pressure pulse if it burned, and vessel integra.ty.
I recommend the following re-write:
Budtittz gives briefing on current assessment by IRC staff of bubble situation (pp. 100-116):
concludes that if a fast hydrogen hun burn were to be initiated, vessel integrity would be compromised. Didn't know of any initiation mechanisms.
That reading is a better synopsis of the meeting record than what you worte, in my view. Please substittte.
y Minor things: really Murley's businees but he is on vacation:
Murley's memo to. files.of 13 June contains the following entry that I suggest be included.
It is xeroxed here for your possible use.
Potential Pressures frem Hydrecen E lesion 2226 217 On Sunday corning senecne suggested that I colkt informatien en wha
- pressures could be generated if there were a hydrocen ex P,ressure vessel.
I found that Vince Ncenan of GR tras the focus in e
~
C Tor tnese analyses and I therefore was involved only peripherally.
I received infor:ation that Dr. Noran Slag of Picatinny Arsenal had made calculattens sacwing a sharp peak ;ressure of 12,50 of a det: nation of a 1000 cu. ft. bubble c:ntaining a mixture of 52t
~=
IEI 02 and 5 steam.
This pressure appaared to be censistant with iniceratten recaf ved by Mb Eudnit: fr:m Dr. Earnard Le.ris of pi-that pressures could reach 5 Fo for deflagratien and 13-14 Fo fo[m.--h
~
det: nation (where Fo = 1000 psi is the ;ressure of the bubble and tha system initially).
)10 2 4 0 32-l (
This infor.atien was passed On to Vinca kenan and I had little furthe-involvemnt ar's e'=
Monday, April r
Lauben - Radiophone from control rocra to Mattson (recollection) - I have been following GPU bubble size measurement and analysis.
Expressed confi-dence that bubble size was decreasing dramatically.
Thursday, March 29 s1800 to 2200 - N. Lauben (recollection)
Mattson, Novak, Minners, Israel, Lauben at IRC.
Information from site indicates unusual " softness" of primary system when attempts were made to depressurize.
Discussed possible sources for gas bubble (zirc. water reaction, radiolysis, steam formation) Estimated radiolysis from TMI FSAR data.
Called Mqtt Taylor e
on sam subject.
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a 2226 218
ENCLOSURE 4 EMPLOYEES GIVEN AN OPPORTUNITY TO REVIEW AND COMMENT ON FINAL ORAFT Chairman Joseph M. Hendrie Comissioner Victor Gilinsky Comissioner Richcrd T. Kennedy Comissioner Peter A. Bradford Comissioner John F. Ahearne Lee V. Gossick, E00 Thomas Rehm, E00 Victor Stello, Director, IE N. Moseley, IE H. Thornberg, IE Saul Levine, Director, RES R. Budnitz, RES T. Murley, RES M. Taylor, RES J. Murphy, RES W. Lanning, RES L. Rib, RES Harold R. Denton, Director, NRR V. Benaroya, NRR E. Case, NRR J. Olshinski, NRR
- 0. Ross, NRR B. Grimes, NRR R. Frahm, NRR C. Berlinger, NRR S. Newberry, NRR P. Check, NRR A. Thadant, NRR R. Woods, NRR J. Watt, NRR T. Marsh, NRR L. Phillips, NRR T. Telford, NRR G. Holahan, NRR V. Noonan, NRR P. Norian, NRR F. Schroeder, NRR S. Hanauer, NRR R. Tedesco, NRR J. Collins, NRR W. Butler, NRR F. Miraglia, NRR T. Novak, NRR K. Parczewski, NRR J. Shapaker, NRR W. Millstead, NRR S. Israel, NRR J. Mazetis, NRR Z. Rosztocy, NRR N. Lauben, NRR 22
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