ML20002C578
| ML20002C578 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 11/07/1975 |
| From: | Ziemann D Office of Nuclear Reactor Regulation |
| To: | Sewell R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| NUDOCS 8101100511 | |
| Download: ML20002C578 (4) | |
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'TiiC PDR NO\\' 0 ' N Local PDR ORB #2 Reading KRGoller TJCarter OELD Docket No. 50-155 OIGE (3)
DLZiemann EAReeves RMDiggs Consumers Power Company VStello ATrn:
Mr. halph L. Sewell Dross Nuclear Licensing Administrator SVarga 212 West Michigan Avenue DEisenhut Jackson, Michigan 49201 TBAbernathy, ITTIE ACRS (16)
Gentlemen:
We are reviewing the Big Rock Point ECCS reanalysis submittal dated and have concluded that additional information described July 25, 1975, in the enclosure is needed to continue our review.
To enable us to maintain our review schedule, please submit the requested information by November 28, 1975.
Sincerely, F '.ginal Signed by:
"..,.:nis L. Zic% nn Dennis L. Ziemann, Chief Operating Reactors Branch #2 i
Division of Reactor Licensing Enclosure.
Request for Additional Inforraution cc w/ enclosure:
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'*s Consumers Power Company 2-NOV 0 7197f i
l cc w/cnclosure:
Mr. Paul A. Perry, Secretary Consumers _ Power Cocpany 212 West Michigan Avenue Jackson, Michigan 49201 Peter W. Steketec, Esquire Frelhofer, Cook, liecht, Oosterhouse and De Boer Union Bank Building, Suite 950 Grand Rapids, Michigan 49502 George C. Freeman, Jr., Esquire llunton, Williams, 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 Charlevoix Public Library 107 Clinton Street Charlevoix, Michigan 49720 3
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e CONSLDT.RS PO)fER COMPANY BIG ROCK POINT PLNIT DOCKET NO. 50-155 REQUEST POR ADDITIONAL INFOT0!ATION l
The analysis for the G.E. fuel docs not discuss the core spray 1.
coefficients used. nor differences between 9 x 9 and 7 x 7 geometrics Identify the coefficients (upon which nost current data are based).
assun.ed, and justify the methods used to derive the coefficient for the 3 x 9 array from the 7 x 7 test data.
fuci does not
- Ihe analysis for the LXXOa Nuclear Corapsny (ENC) 2.
discuss the core spray coefficients used, nor the differences between 11 x 11 and 7 x 7 geometries.
Identify the coefficients assumed, and justify the methods used to derive these coefficients from existing test data.
'Ihe staff analysis for the ENC model " Report Regarding the EXXON 3.
Nucicar Company ECCS Non-Jet Pump WR Fuel Heatup Model.
(FNC-NJP-BWR-FHM) dated March 6,1975 requires justification for In this certain features of the model on a case-by-case basis.
regard, provide the following:
Justification that ENC fuel (11 x 11 arrays. some of which have a) different fuel composition) does not influence NSSS strppliec results, particularly those supplied to E: C-::JP-SJR-fiC'.
veuenstrate that hi,XY-calculated voluactric cvera;,e fuel te :pera-
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ture equals or execcus that cciculated using GAFEX.
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c) Justification of the applicability of the fission power curve used for small and intermediate size breaks.
d) Justify the fraction of locally generated gama energy deposited in fuel pins.
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