ML19199A399
| ML19199A399 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 11/20/1972 |
| From: | Anthony Giambusso US ATOMIC ENERGY COMMISSION (AEC) |
| To: | John Miller METROPOLITAN EDISON CO. |
| References | |
| NUDOCS 7905020014 | |
| Download: ML19199A399 (2) | |
Text
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- A UNITED STATES s
ru
(, / mhq' ATOMIC ENERGY COMMISSION
W l.,
WASHINGTON, D.C.
20545
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f Docket Nos. 50-289 November 20, 1972 50-320<
Metropolitan Edison Company ATTN:
Mr. John G. Miller Vice President F. O. Box 542 Reading, Pennsylvania RE:
Three Mile Island Nuclear Station, Units 1 and 2 Gentlemen:
~
The Ccomission's Regulatory Staff has completed a review of fuel densification and its effect on reactor operation including transients and postulated less-of-coolant accidents.
The Staff's investigations and conclusions are reported in " Technical Report on Densification of Light 'n'ater Reactor Fuels" dated November 14, 1972, a copy of which is enclosed for your informarion and guidance.
This report concludes that densification of fuel may occur and that the resulting formation of fuel column gaps should be anticipated in all light water reactor fuels.
The report also provides the essential elements to be included in calculational models used to account for the effects of fuel densi-fication.
The Regulatory Staff believes that the fuel for the subject f acility (s) is susceptible to densification.
Therefore, we reques: that you provide the necessary analyses and other relevant data for determining the conse-quences of densification and the effects on normal operation, anticipated transients, and accidents, including the postulated loss-of-ccolant If the accident, using the guidance provided in the enclosed report.
analyses indicate that changes in design or operating conditions are necessary to maintain required margins, you should submit proposed changes and operating limitations with the analyses.
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the Regulatory Staff can conduct an expeditious and orderly In order that that you submit the analyses and review of these macters, we request additional information within 45 days from the date of this letter.
It is requested that this infor=ation be provided with one signed original and thirty-nine additional copics.
If your submittal is for more than a total of sixty copies is needed.
one unit, Sincerely, A4W &
A. Gic=busso, Deputy Director for Reactor Projects Directorate of Licensing
Enclosure:
Technical Report on Densificatien (November 14, 1972) cc:
General Public Utilities Service Corporation ATTN :
Mr. R. W. Heward I
Project Manager Safety and Licensing 260 Cherry Hill Road Parsippany, New Jersey 07054 General Puolic Utilities Service Corporatien ATTN:
Mr. T. Crimmins, Manager Safety and Licensing 260 Cherry Hill Road Parsippany, New Jersey 07054 I
Gerald Charn<ff, Esquire j
Shaw, Pittman, Potts, Trewbridge & Madden 910 17 th S tree t, NW J
Washington, D. C.
20006
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Government Publications Secticn State Library of Pennsylvania
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Box 1601 (Education Building')
Harrisburg, Pennsyls ania 17126 s
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