ML20003F531

Proposed Changes to Tech Specs 5.6 for Fuel Storage

ML20003F531
Person / Time
Site:	Brunswick
Issue date:	04/16/1981
From:	CAROLINA POWER & LIGHT CO.
To:
Shared Package
ML20003F529	List: ML20003F528 ML20003F531 ML20003F532
References
NUDOCS 8104220303
Download: ML20003F531 (4)

Text

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ATTACHMENT 1 1

8104220303

DESIGN FEATURES 5.6 FUEL STORAGE CRITICALITY 5.6.1.1 The new fuel storage racks are designed and shall be maintained with sufficient center-to-center distance between fuel assemblies placed in the storage racks to ensure a keff equivalent to <0.90 when dry and <0.95 when flooded with unborated water.

5.6.1.2 The unpoisoned spent fuel storage racks are designed and shall be l maintained with sufficient center-to-center distance between fuel assemblies placed in the storage racks to ensure a keff equivalent to <0.95 with the storage pool filled with unborated water with:

a. New PWR fuel containing not more than 41 grams of U-235 per axial centimeter of active fuel assembl/, and a maximum assembly average loading of 3.2 w/o U-235,

b. New BWR fuel containing not more than 15.6 grams of U-235 per axial centimeter of active fuel assembly, and a maximum assembly average loading of 3.0 w/o U-235.

5.1.6.3 The Keff for the unpoisoned racks includes a conservative allowance of 0.5% ak/k for uncertainties.

5.1.6.4 The poisoned fuel racks are designed and shall be maintained to ensure a keff of less than 0.95 with the storage pool filled with unborated water for any BWR fuel assemblies with individual bundle k.'s less than 1.35.

DRAINAGE 5.6.2 The spent fuel storage pool is designed and shall be maintained to prevent inadvertent draining of the pool below elevation 116' 4".

CAPACITY l

5.6.3 The fuel storage pool is designed and shall be maintained with a ctorage capacity limited to no more than 160 PWR fuel assemblies and 1803 BWR fuel assembles. j l

5.7 COMPONENT CYCLIC OR TRANSIENT LIMIT l 5.7.1 The components identified in Table 5.7.1-1 are designed and shall be maintained within the cycle or transient limits of Table 5.7.1-1.

BRUNSWICK - UNIT 1 5-5 l

DESIGN FEATURES 5.6 FUEL STORAGE CRITICALITY 5.6.1.1 The new fuel storage racks are designed and shall be maintained with sufficient center-to-center distance between fuel assemblies placed in the

, storage racks to ensure a keff equivalent to <0.90 when dry and <0.95 when flooded with unborated water.

5.6.1.2 The unpoisoned spent fuel storage racks are designed and shall be  !

maintained with sufficient center-to-center distance between fuel assemblies placed in the storage racks to ensure a kogg equivalent to <0.95 with the.

storage pool filled with unborated water with:

a. New PWR fuel containing not more than 41 grams of U-235 per axial centimeter of active fuel assembly, and a maximum assembly average loading of 3.2 w/o U-235,

b. New BWR fuel containing not more than 15.6 grams of U-235 per axial centimeter of active fuel assembly, and a maximum assembly average loading of 3.0 w/o U-235.

5.1.6.3 The Keff for the unpoisoned racks includes a conservative allowance of 0.5% Ak/k for uncertainties.

5.1.6.4 The poisoned fuel racks are designed and shall be maintained to ensure a ke gg of less than 0.95 with the storage pool filled with unborated water for any BWR fuel assemblies with individual bundle k.'s less than 1.35.

DRAINAGE 5.6.2 The spent fuel storage pool is designed and shall be maintained to prevent inadvertent draining of the pool below elevatien 116' 4".

CAPACITY 5.6.3 The fuel storage pool is designed and shall be maintained with a storage capacity limited to no more than 144 PWR fuel assemblies and 1839 BWR fuel assembles.

5.7 COMPONENT CYCLIC OR TRANSIENT LIMIT 5.7.1 The components identified in Table 5.7.1-1 are designed and shall be maintained within the cycle or transient limits of Table 5.7.1-1.

BRUNSWICK - UNIT 2 5-5

ATTACHMENT 2