ML070710375
| ML070710375 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 03/09/2007 |
| From: | NRC/NRR/ADRO/DORL/LPLIII-1 |
| To: | |
| P. TAM | |
| Shared Package | |
| ML070710005 | List: |
| References | |
| TAC MD0302 | |
| Download: ML070710375 (1) | |
Text
Design Features 4.0 4.0 DESIGN FEATURES 4.3 Fuel Storage (continued)
- c.
keff < 0.90 for original fuel rack if fully flooded with unborated water, which includes an allowance for uncertainties as described in Section 10.2.1 of the USAR; and
- d.
A nominal 6.563 inch center to center distance between fuel assemblies placed in the 13 x 13 high density storage racks, a nominal 6.625 inch center to center distance between fuel assemblies placed in the 8 x 8 high density storage rack, a nominal 6.625 inch center to center distance between fuel assemblies placed in the original storage rack, and a two inch gap between the high density racks and the original rack.
4.3.1.2 The new fuel storage racks are designed and shall be maintained with:
- a.
Fuel assemblies having a maximum k-infinity of 1.31 in the normal reactor core configuration at cold conditions;
- b.
keff < 0.90 if dry; C.
keff < 0.95 if fully flooded with unborated water, which includes an allowance for uncertainties as described in Section 10.2.1 of the USAR;
- d.
keff -< 0.98 under optimum moderator conditions, which includes an allowance for uncertainties as described in Section 10.2.1 of the USAR; and
- e.
A minimum 6.5 inch center to center distance between fuel assemblies placed in storage racks within a row and a minimum 10 inch center to center distance between fuel assemblies placed in storage racks between rows.
4.3.2 Drainagqe The spent fuel storage pool is designed and shall be maintained to prevent inadvertent draining of the pool below elevation 1003 ft 7.25 inches.
4.3.3 Capacity The spent fuel storage pool is designed and shall be maintained with a storage capacity limited to no more than 2301 fuel assemblies.
Monticello 4.0-2 Amendment No. 446 150