ML20030A526
| ML20030A526 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 11/13/1974 |
| From: | Sewell R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Ziemann D US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 8101090915 | |
| Download: ML20030A526 (3) | |
Text
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November 13, 197 o
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,p Mr. Dennis L. Ziemann Re: Docket 50-155 o
N' Chief, Operating Reactors License DPR-6 jD Branch Number Two Big Rock Point Plant.
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Directorate of Licensing y
US Atomic Energy Commission Washington, DC 20545
Dear Mr. Ziemann:
By letter dated September 17, 1974, you requested that Consumers Power Company submit a fuel densification model and the supporting information for mixed oxide fuel. In addition, you re-quested that we provide the necessary analysis and relevant data for determining the consequences of densification and the effects on normal operation, anticipated transients and accidents and the acceptability of the ECCS for the Big Rock reactor using the ap-proved models described in the enclosures to your September 17, 1974 letter (and equivalent new models for mixed oxide fuel) and the ECCS evaluation models and required documentation presented in Appendix K to 10 CFR Part 50. You further stated that if the anal-yses irdicate that changes in the design or operating conditions are necessary to maintain the required margins, we should submit proposed
- heue,uo and operating limitations with the analyses. You requested that the fuel densification models be submitted by December 1, 197h and that the analysis of the effects of fuel densification be in-cluded in our submittal of March 31, 1975.
Based on the work performed to date, we have concluded that the Exxon Nuclear Company fuel densification model supplemented as described in your letter of September 17, 197h conservatively predicts the behavior of mixed oxide fuels as well as uranium oxide fuels.
We, therefore, conclude that changes to the densification models for uranium oxide fuels are not required for mixed oxide fuels. A report is pres-ently being prepared to document and justify this position. Due to the magnitude of the effort required in preparation of this report, we vill be unable to submit the report by December 1, 1974 as requested in your September 17, 1974 letter. Our schedule for submittal of the report to the regulatory staff is January 31, 1975 I
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Mr. Dennis L. Ziemann 2
Big Rock Point Plant November 13, 197h The effects of fuel densification on normal operation, anticipated transients and accidents vill be included in the sub-mittal required March 31, 1975 as requested in your letter of September 17, 2974.
Yours very truly, 1:
RBS/mel Ralph B. Sewell Nuclear Licensing Administrator I
CC: JGKeppler, USAEC I
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s AEC DISTRIBUTION FOR PART 50 DOCKET MATERI AL (TEMPORARY FORM) 11663 CONTROL NO:
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FILE:
FROM: Consumers Power Company DATE OF DOC DATE REC'D LTR TWX RPT OTHER Jackson, Mi:h. 49201 Mr. R.B. Sewell 11-13-74 11-15-74 X
TO:
ORIG CC OTHER SENT AEC PDR XXX D.L. Ziemann 1 signed SENT LOCAL PDR M
CLASS UNCLASS PROPINFO INPUT NO CYS REC'D DOCKET NO:
XXX 40 50-155 DESCRIPTION:
ENCLOSURES:
Ltr re our 9-17-74 ler.....re submission of info concerning Fuel densification, etc...
and adv that the submittal of the requested FACKNOWLEDGED infcreation will be made as stated in this ltr........
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DONOT REMOVE PLANT NAME: Big Rock Point.
FOR ACTtON/INFORMATION 11-18-74
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