ML20107D149

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Summary of 740522 Meeting W/Util Re Exxon 8x8 U02 Lead Fuel Assemblies for Use in Plant
ML20107D149
Person / Time
Site: Oyster Creek
Issue date: 06/20/1974
From: Riesland J
US ATOMIC ENERGY COMMISSION (AEC)
To:
US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML18039A986 List: ... further results
References
FOIA-95-258 NUDOCS 9604180146
Download: ML20107D149 (5)


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UNITED STATES ATOMIC ENERGY COMMISSION r

WASHINGTON. D.C. 20S45

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Jtme 20,1974

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,. Docket No. 50-219 LICENSEE:

JERSEY CENTRAL POWER AND LIGHT COMPANY I

FACILITY:

0YSTER CREEK NUCLEAR PLANT-I SlM1ARY OF MEETING HELD WITH APPLICANT ON 8 X 8' LEAD FUEL ASSEMBLIES Introduction On~ May)22 1974, representatives of Jersey Central Power and Light Comp (JCP&L ; met with' the Regulatory staff. to present requested information i

regarding Exxon 8 x 8 UOp lead fuel assemblies for use in the Oyster t'

Creek facility.

JCP&L h8d proposed to load four 8 x 8 assemblies into the Oyster Creek core during the present spring refueling outage. A list of attendees is attached.

Discussion I

JCP&L presented an agenda for their presentation ~of information regarding

.the Exxon 8 x 8 002 fuel assemblies.

Presentations were made by General Public Utilities Service Company (GPUSC) and Exxon personnel. A copy i

of the agenda is enclosed.

2 The perfonnance of the 8 x 8 Exxon fuel assemblies was based upon-information from 495 fuel assemblies operating in various reactors, i-493 of which were omrated in Boiling Water Reactors. The perfonnance L

was shown to be wit 1out fuel failure.

t Design aspects relative to 7 x 7 fuel were discussed. The significant new i.

design aspects were:

i 1.- 1% dishing in the fuel pellets for expansion.

2.

L'ow L/D ratio to reduce cocking of the fuel.

3.

Upper. tie plate design permits easier disassembly.

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4..Four passive zirconium rods in each assembly provides increase in

' water droplet cooling in the event of a LOCA.

'These' design features are incorporated in the lead 8 x 8 fuel assemblies.

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The four 8 x 8 fuel assemblies proposed to be loaded into the Oyster Creek core are lead assemblies and the small number are considered by

[L Exxon, GPUSC and.the staff to have no significant affect on.the operation of the core.

However, several' areas of concern need to be addressed for our review prior to the use of a significant number of 8 x 8 Exxon fu21 assemblies for cort reloads. These are:.

1.

Spray cooling tests and results of tests.

1

~ 2.

Flow blockage effects.

4 3.

Temperature transient plots for fuel rods during operation of ECCS for various size breaks, particularly with comparison to 7 x 7 fuel assemblies.

4 4.

' Clad collapse calculations for 8 x 8 fuel as per SER for Exxon BWR i

fuels, December 17, 1973.

l The staff suggested that a surveillance program be established by JCP&L for the 8 x 8 lead Exxon fuel assemblies as part of the design basis for the generic review of the Exxon 8 x 8 assembly. The plan for the surveillance program should be submitted to the staff for our review.

The results of interim inspections should be included in periodic progress reports for Regulatory staff review.

Conclusions Based on the above, the staff concluded that use of four Exxon lead fuel j

assemblies in the Oyster Creek core during cycle 4 operation is an acceptable proposal, contingent.upon completion of review of the JCP&L Facility Change Request No. 6, dated April 16, 1974, for the Oyster Creek facility.

l A proposed Technical Specification Change for the 8 x 8 fuel assemblies is required to be submitted by JCP&L before we can complete an amendment to the Oyster Creek license authorizing use of this fuel.

John I. Riesland Operating Reactors Branch #2 Directorate of Licensing

Enclosures:

1.

Attendance List 2.

Agenda.

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DISTRIBUTION FOR MEETING NOTICES-Docket File AEC PDR Local PDR L Reading File Branch Reading File E. G. Case A. Giambusso.

R. S. Boyd RP Assistant Directors RP Branch Chiefs T. J. Carter J. M. Hendrie TR Assistant Directors TR Branch Chiefs A. Kenneke R0 (3)

RS (3) 000 i

R. Fraley, ACRS (3)

Principal Staff Participants Receptionist Jersey Central Power & Light Company 1

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O ENCLOSURE NO. 1 4

l ATTENDANCE LIST MEETING ON OYSTER CREEK.

MAY 22, 1974 GENERAL PUBLIC UTILITIES SERVICE COMPANY N. Trikouros T. Robbins V. Zodiaco T. Crimins B. Cherry EXXON L. Federico L. Steves W. Gallaugher W. Nechodom G. Soter AEC - STAFF e...

J. Riesland L. S. Rubenstein W. Minners L. Beltracchi R. Woods F. Coffman S. Kim D. Houston D. Fieno i

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O ENCLOSURE NO. 2

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e AGENDA OYSTER CRE8K 8 x 8 LEAD ASSEMBLIES BETHESDA, MARYLAND 5/22/74 10:00 -

1.

Introduction Mr. B. Cherry 10:15 Mr. T. Crimmins Mr'. W. Nechodom 10:15 -

2.

EXXON Nuclear Fuel Performance Dr. G. Sofer 10:30

.10:30 -

3.

Spray Coefficients for 8 x 8's Dr. L'. Steves 10:45 10:45 -

4.

Spray Cooling Testing - FCTF Tests Dr. G,.Sofer 11:00 i

11:00 -

5.

8 x 8 Supporting Design and Testing Information i

12:00 Mr. W. Gallaugher LUNCH 1:30 -

5.

Methods for Calculating Scram Reactivity and Results 2:00 of Analysis Mr. L. Federico 2:00 -

7.

TH Methods and Correlations Used in Transient Analysis 2:30 Dr. L. Steves 2:30 -

8.

Other AEC Concerns O

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