Document: NUREG-0800
Document ID: b486e8d3-c8b0-4990-b7ec-211a3aae25c3
Document Type: srp
Title: CONTAINMENT FUNCTIONAL DESIGN
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070456.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.2.1
CFR Part: 
CFR Title: 

Content:
ment functional design includes calculation of the various effects associated with the postulated rupture in the primary or secondary coolant system piping. The subsequent thermodynamic effects in the containment resulting from the release of the coolant mass and energy are determined from a solution of the incremental space and time-dependent energy, mass, and momentum equations. The basic functional design requirements for containment are given in General Design Criteria 4, 16 and 50 in Appendix A to 10 CFR Part 50 and in 10 CFR 50.46. General Design Criterion 4 provides the basic environmental and 3 dynamic effects design requirements for all structures, systems, and components important to safety. General Design 16 establishes the fundamental requirement to design a containment that 4 is essentially a leak-tight barrier against the release of radioactivity to the environment. General 5 Design Criterion 50, among other things, requires that consideration be given to the potential consequences of degraded engineered safety features, such as the containment heat removal system and the emergency core cooling system, the limitations in defining accident phenomena, and the conservatism of calculational models and input parameters, in assessing containment 6 design margins. 10 CFR 50.46 provides methods and criteria for the analysis and design of emergency core cooling systems.7 General Design Criteria 52 and 53 provide design requirements to assure that the design can accommodate a periodic integrated leakage rate testing at design pressures, and to assure that the design permits periodic inspections and appropriate surveillance programs. The basic functional design requirements for a leak tight containment barrier for piping systems penetrating the primary reactor containment are given in General Design Criteria 54 thru 57. The General Design Criteria provide design requirements for the installation of containment isolation valves on piping lines that penetrate the