Document: NUREG-0800
Document ID: 931b933f-eeb8-4e82-b76a-4813dde9214a
Document Type: srp
Title: SPENT FUEL POOL COOLING AND CLEANUP SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0631/ML063190013.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.1.3
CFR Part: 
CFR Title: 

Content:
rformance requirements for the isolation valves. For the typical system, the reviewer examines drawings and reviews descriptions to verify that adequate isolation valves separate nonessential portions and components from the essential portions. B. Heat exchangers, pumps, valves and piping for the cooling portion of the system are constructed to Quality Group C and designed to seismic Category I requirements in accordance with the guidance provided in RGs 1.26 and 1.29. As an acceptable alternative, the cooling loop may be constructed to nonseismic Category I requirements, provided the spent fuel pool water makeup system and the building ventilation and filtration system are 1) designed to Quality Group C and seismic Category I requirements; 2) are protected from the effects of tornadoes; and 3) meet the single-failure requirements. Where this alternative is selected, the ventilation system provides the capability to vent steam/moisture to the atmosphere to protect safety-related components from the effects of boiling in the spent fuel pool (SFP). If necessary to limit the offsite dose consequences of spent fuel pool boiling, the ventilation and filtration system should also meet the guidelines of RG 1.52. The review for seismic design and seismic and quality group classification is performed under SRP Sections 3.7.1 through 3.7.4, and 3.2.1 and 3.2.2, respectively. C. The stated quantity of fuel to be cooled by the spent fuel cooling system is consistent with the quantity of fuel stored. D. The minimum heat removal capacity with the forced-circulation cooling system in operation, the pool at the design temperature of the structure, and the heat sink at its maximum design temperature is greater than 0.3 percent of the reactor rated thermal power. The cooling system retains at least half of its full heat removal capacity assuming a single active failure. This capacity provides reasonable assurance that the pool temperature will remain within design bounds for the