ML20069B970

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Submits Addl Info Re Increase in Storage Capacity of Spent Fuel to 1,800 Assemblies Per SEP Topic IX-1,fuel Storage. Fuel Storage Racks Are full-length,top-entry & Spaced to Prevent Accidental Critical Array
ML20069B970
Person / Time
Site: Oyster Creek
Issue date: 02/22/1982
From: Nagai Y
GENERAL PUBLIC UTILITIES CORP.
To: Fell R
NRC
References
TASK-09-01, TASK-9-1, TASK-RR NUDOCS 8203080167
Download: ML20069B970 (2)


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o g GPU Nuclear 1C0 Interpace Parkway y 1 ggg{ Parsippany, New Jersey 07054 201 263-6500 TELEX 136-482 Writer's Direct Dial Number:

February 22, 1982

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N MCSVg h!r. Robert Fell S 8,81 1 U.S. Nuclear Regulatory Commission C M82h 7902 Norfolk Avenue Bethesda, Flaryland 20014 { kg@M% 88

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Dear b!r. Fell:

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Subject:

Oyster Creek Nuclear Generating Station Systematic Evaluation Program Topic No. IX-I Fuel Storage Jersey Central Power 6 Light Company received permission from the Nuclear Regulatory Commission to increase its storage capacity of spent fuel to 1800 assemblics at the Oyster Creek Nucicar Generating Station in blarch of 1977. Our submittal supporting this increase is dated January 30, 1976, supplemented by letters dated 5farch 18, 1976, August 11, 1976, November 30, 1976 and February 23, 1977.

New fuct is stored in the reactor building in the new fuel dry storage vault located adjacent to the refueling pool area. The storage racks are full length, top entry and spaced to prevent an accidental critical array. Even if the vault becomes flooded, the Keff will not exceed 0.95 and criticality will not occur. Vault drainage is provided to prevent water co11cetion.

The Oyster Creek Spent Fuel Cooling System (SFPCS) is used to l remove decay heat from the spent fuel pool during all plant conditions.

The SFPCS consists of an original portion and an augmented portion. Both the original and augmented systems take suction from the fuel pool and then cool the water by circulating it through heat exchangers. The heat l exchangers are cooled by the Reactor Building Closed Cooling Water System (RBCCNS), which is cooled by the Service Water System (SWS). The augmented portion of the SFPCS was installed to accommodate the additional heat load associated with the increased storage capacity.

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le r s a part of the General Public Utilities System P PDR

The analyses relative to criticality, cooling capacity and structural capacity of the fuel storage pool and racks are contained in the referenced submittals. The analyses indicate that the safety objectives of the subject topic are achieved.

The SFPCS is designed as a Seismic Category I system. The RBCCWS, SWS and the spent fuel pool makeup system are not Seismic Category I systems. Another means of removing heat from the pool could be provided by recirculating pool water through one main condenser. Normal makeup to the pool is provided from the nominal 5,25x105 gallon condensate storage tank at a rate of about 250 gpm'by c single condensate transfer pump. Additional makeup can be provided via the demineralized water transfer pumps and the diesel driven fire pumps.

This letter is sent to you informally because th e information contained in the referenced material will be used as an input to the draft topic SER which will be reviewed by GPU, If you have any further questions on this topic, please contact me s at 201-299-2255, Very truly yours,

[ 6 Yoshito Nagai 7

BWR Licensing ngineer 1r cc: J Knubel J, Lachenmayer W. R, Schmidt J. R. Thorpe I

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