ML20003G447
| ML20003G447 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/24/1981 |
| From: | Hovey G METROPOLITAN EDISON CO. |
| To: | Barrett L Office of Nuclear Reactor Regulation |
| References | |
| LL2-81-0110, LL2-81-110, NUDOCS 8104290463 | |
| Download: ML20003G447 (2) | |
Text
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Metracolitan Edison Company Post Office Box 480
[A 1J Middletown, Pennsylvania 170s,,,
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( April 24, 1981 LL2-81-0110 M
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TMI Program Office Attn:
Mr. Lake H. Barrett, Deputy Director g
U. S. Nuclear Regulatory Commission c/o Three Mile Island Nuclear Station
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Middletown, Pennsylvania 17057
Dear Sir:
Three Mile Island Nuclear Static,n, Unit 2 (TMI-2)
Operating License No. DPR-73 Docket No. 50-320 Submerged Demineralizer System During discussions with mecbars of your staff, you requested that we provide our estimate of the maximum centerline temperature that might be reached in a dewater2d zeolite bed. This letter responds to that request.
Our analysis is based on the following assumptions:
1.
Total bed loading is 60,000 curies - Cs-137.
2.
The resin concentration of radioactivity is 8,000 times the expected feed concentration.
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The liners are stored under water at 80 F skin temperature.
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4.
The zeolite is completely dry and thus the worst case of thermal conductivity (0.092 bru/hr - ft. - F).
5.
he bed is solid -- no credit is taken for the cencer 1 "[
discharge pipe on the centerline.
This analysis yields a maximum (hypothetical) centerline temperature of 224 C (435 F).
Should this hypothetical maximum temperature be reached there would be no adverse consequences on either the zeolite ion exchange media or the SDS vessel.
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e L. H. Barrett LL2-81-0110 Should you wish to discuss this matter further, please contact Mr. L.
J. Lehman, Jr. of my staff.
Sincerely, l
K!!c9 G. K. Hovey Vice-President and Director, DfI-2 i
i GIGI:LJL:djb cc:
Dr. B. J. Snyder, Program Director, TMI Office i;
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