Document: NUREG-0800
Document ID: 65459c92-1a7f-4400-8879-377d687bfa2b
Document Type: srp
Title: SPENT FUEL STORAGE
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052360614.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.1.2
CFR Part: 
CFR Title: 

Content:
age capacity in the spent fuel storage pool shall be in accordance with ANS 57.2 paragraph 5.1.15, i.e., for a single unit facil- ity the storage capacity shall equal or exceed one full core discharge plus the maximum normal fuel discharge cycle; for a dual shared storage pool facility the storage capacity shall equal or exceed one full core discharge plus two normal fuel discharge cycles. Due to a lack of suffi- cient away-from-reactor (AFR) storage capacity, the industry trend has been to use high density storage racks. ASB reviews high density storage on a case-by-case basis. 2. The information provided in the SAR relating to the facility design criteria, safety evaluation, system description, and the layout drawings for the spent fuel pool and storage racks is reviewed to verify that: a. Criticality information (including the associated assumptions and input parameters) in the SAR must show that the center-to-center spacing between fuel assemblies and any strong fixed neutron absorbers in the storage racks is sufficient to maintain the array, when fully loaded and flooded with nonborated water, in a subcritical condition. A K not greater than 0.95 for this condition is acceptable. eff b. The design of the storage racks is such that a fuel assembly cannot be inserted anywhere other than in a design location. 9.1.2-4 Rev. 3 - July 1981 c. Failures of nonsafety-related systems or structures not designed to seismic Category I that are located in the vicinity of the spent fuel storage facility are-reviewed to assure that their failure will not cause an increase in Keff to exceed the maximum allowable. The SAR description section, the general arrangement and layout drawings, and the tabulation of seismic design classifications for structures and systems are reviewed and evaluated to assure that this condition is met. A statement in the SAR establishing the above condition as a design criterion is acceptable at the CP review stage. d. Design calculations should show