ML20002C495

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Requests Addl Info for Review of Util 740620 Reload G-1 Submittal by 750414.Detailed Request Encl
ML20002C495
Person / Time
Site: Big Rock Point File:Consumers Energy icon.png
Issue date: 04/02/1975
From: Ziemann D
Office of Nuclear Reactor Regulation
To: Sewell R
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
References
NUDOCS 8101100371
Download: ML20002C495 (3)


Text

_. _ _ _ _ _ _ _ _ _ _ _

y DISTRIBUTION NRC PDR b eal PDR APR 02 E M Docket ORB #2 Reading KRGoller TJCarter Docket No. 50-155 OELD OIGE (3)

DLZiemann RMDiggs EAReeves Consumers Power Company JRBuchanan, ORNL ATni:

Mr. Ralph B. Sewell TBAbernathy, DTIE

~

Nuclear Licensing Administrator SVarga 212 West Michigan Avenue ACRS (14)

Jackson, Michigan 49201 yg Gentlemen:

We are reviewing the Big Rock Point Reload G-1 submittal dated June 20,1974, and have concluded that additional information shown on the enclosure is needed to complete our review.

To enable us to maintain our review schedule, please submit the requested additional information by April 14, 1975.

Sincerely, od M

.t.

Denni Z emann, Chief Operating Reactors Branch #2 Division of Reactor Licensing

Enclosure:

Request for Additional Information cc: see next page

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Consur rs Power Cor.: pat. GR lIN cc w/cnclosure:

Mr. Paul A. Perry, Secretary Consumers Power Company 212 West Michigan Avenue Jackson, Michigan 49201 N

Peter W. Steketec, Esquire Frelhofer, Cook, Hecht, Oosterhouse and De Boer Union Bank Building, Suite 950 Grand Rapids, Michigan 49502 George C. Freeman, Jr... Esquire llunton, Willians, Gay 6 Gibson 700 East Main Street Richmond, Virginia 23212 Charles F. Bayless Of Counsel Consumers Power Company 212 West Michigan Avenue Jackson. Michigan 49201 Anthony Z. Roisman, Esquire Berlin, Roisman and Kessler 1712 14 Street,:1. W.

Washington, D. C.

20036 Charlevoix Public Library 107 Clinton Street Charlevoix, Michigan 49720 t

P00R ORIGINAL

4 CONSl":ERS PC'.E R COP.uT EIG ROCK POINT DOCKET NO. 50-155 REQUEST FOR ADDITIGSAL INFOPd'\\TIGN Provide the following additional information:

1.

Ident i ffia number of r:ixed-oxide (':0X) fuel bundles, as t

well as the total.vt.ber of fuel bundles, in the proposed reload.

If the number of MOX fuel bundles is large, the total inventory of "0X in ERP would be large, core physics would be altered and a detailed review would be necessary.

Our revie=.e procedure foi large relo. ids, as discussed with all U.S. feel vcndors and the ACRF last !! inter, uculd begin with the revie'.. of a generic report preparcd by the fuel vendor in accordance with Uc scapc establichcd in WAS!!-1303 and later in GES'D.

2.

If Reload G-1 includes no care than 7 MOX fuel bundles, provide the inforuation described below.

(a) Peak claJding tc:cperatures for the inca cust be calculated usin,q currcnt r:odels as rewired in 10 CFR 50 Appendix K.

(b) The EXXO:: UJ, fuel densification model r.ust he shown to apply to Re10ed C-I 10X f uels. This can be accomplished by demonst rat ing that the L;-1 :DX fuel is 1ike the G MJX fuel (eg., microstructure, thernal stability, process history) and referen ing our acceptance of XN-75-11 for Reload G.

(c) An appropriate reduction in thernal conductivity for :'OX fuel r..ust be included in the stored cnergy calculation.

(d)

Describe the location of reload and residual assctblics and provide the power distribution to be used in 1.0CA analysis, indicating the peak power rod (s) in the reload.

The use of a fuel densification model should change the burnup at which peak cladding tcaperatures are expected.

(c)

Provide an estinate of tir.e-to-collapse using an approved cladding collapse podel.

Tv ' G (f)..Sumariri c the~ current" performance: o'r Peload G,.Ehich 'is the

.y.

reference cycle for G-1.

P00R ORIGINAL

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