ML20046D347
| ML20046D347 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 07/29/1993 |
| From: | Pulsifer R Office of Nuclear Reactor Regulation |
| To: | Leslie Liu IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT |
| References | |
| TAC-M86284, NUDOCS 9308180132 | |
| Download: ML20046D347 (3) | |
Text
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e July 29, 1993 Docket No. 50-331 DISTRIBUTION Docket File NRC& Local PDRs Mr_. Lee Liu' PDIII-3 r/f PDIII-3 Gray Chairman of the Board and JRoe-JZwolinski Chief Executive Officer JHannon RPulsifer
-Iowa Electric l'ight and Power Company MRushbrook ACRS (10)
Post Office Box 351 OGC EGreenman, RIII Cedar Rapids,, Iowa 52406 LKopp 8-E-23 RJones 8-E-23
Dear Mr. Liu:
SUBJECT:
DUANE ARNOLD ENERGY CENTER - SPENT FUEL POOL RERACK REQUEST FOR ADDITIONAL INFORMATION (TAC NO. M86284)
The NRC staff has performed a preliminary review of the spent fuel pool-reracking amendment request submitted on March 26, 1993, for the Duane Arnold Energy Center. We are submitting the enclosed request for additional information (RAI) in order to continue our review.
There will be other RAIs as the variout branches reviewing this request continue their reviews.
1.
Explain how the specification of an initial uniform average enrichment of 4.6 wt. % U-235 bounds all possible nonuniform fuel' and gadolinia variations which could result in the same fuel bundle average enrichment and core geometry k-infinity.
2.
Were any uncertainties assumed in the standard core geometry k-infinity calculations?. If not, why not?
3.
How many neutron histories were used in the independent check calculations performed with the KENO code?
Please provide your response as soon as practicable, and within no more than 45 days from the receipt of this letter.
If additional information is required, please contact me at (301) 504-3016.
This request for information affects fewer than 10 respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely, Jon B. Hopkins/for Robert M. Pulsifer, Project V anager Project Directorate III-3 Division of Reactor Project III/IV/V-Office of Nuclear Reactor Regulation c:e next page LA:'D I-3 PM:PDId[3 4
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WASHINGTON. D.C. 20555-0001 July 29, 1993 Docket No. 50-331 Mr. Lee Liu Chairman of the Board and Chief Executive Officer Iowa Electric Light and Power Company Post Office Box 351 Cedar Rapids, Iowa 52406
Dear Mr. Liu:
SUBJECT:
DUANE ARNOLD ENERGY CENTER - SPENT FUEL POOL RERACK REQUEST FOR 1
ADDITIONAL INFORMATION (TAC NO. M86284)
The NRC staff has performed a preliminary review of the spent fuel pool reracking amendment request submitted on March 26, 1993, for the Duane Arnold Energy Center.
We are submitting the enclosed request for additional information (RAI) in order to continue our review.
There will be other RAls as the various branches reviewing this request continue their reviews.
1.
Explain how the specification of an initial uniform average enrichment of 4.6 wt. % U-235 bounds all possible nonuniform fuel and gadolinia variations which could result in the same fuel bundle average enrichment and core geometry k-infinity.
2.
Were any uncertainties assumed in the standard core geometry k-infinity calculations? If not, why not?
3.
How many neutron histories were used in the independent check calculations performed with the KENO code?
Please provide your response as soon as practicable, and within no more than 45 days from the receipt of this letter.
If additional information is required, please contact me at (301) 504-3016.
This request for information affects fewer than 10 respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely, Robert M. Pulsifer, Project Manager
/
Project Directorate III-3 Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation j
cc: See next page
p Mr. Lee Liu Iowa Electric Light and Power Company Duane Arnold Energy Center i
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cc:
Jack Newman, Esquire Kathleen H. Shea, Esquire Newman and Holtzinger 1615 L Street, N.W.
Washington, D.C.
20036 i
Chairman, Linn County
+
Board of Supervisors i
Cedar Rapids, Iowa 52406 Iowa Electric Light and Power Company ATTN: David L. Wilson i
Plant Superintendent, Nuclear 3277 DAEC Road Palo, Iowa 52324 Mr. John F. Franz, Jr.
Vice President, Nuclear Duane Arnold Energy Center 3277 DAEC Road Palo, Iowa 52324 Mr. Keith Young Manager, Nuclear Licensing Duane Arnold Energy Center 3277 DAEC Road Palo, Iowa 52324 U.S. Nuclear Regulatory Commission Resident Inspector's Office i
Rural Route #I Palo, Iowa 52324 Regional Administrator, Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 Mr. Stephen N. Brown Utilities Division Iowa Department of Commerce Lucas Office Building, 5th Floor Des Moines Iowa 50319
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