Document: NUREG-0800
Document ID: 2717fe7f-71fd-4f1e-bd08-7685b24763ba
Document Type: srp
Title: Standard Review Plans are prepared for the guidance of the Office of Nuclear Reactor Regulation staff responsible for th
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0301/ML030160606.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15
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and consistency in, the final results. GDC General Design Criteria - Design criteria described in Appendix A to 10 CFR Part 50. 18 HEM Homogeneous Equilibrium Model - An analytical model for two-phase flow that assumes (1) both phases move at the same velocity, (2) the fluid is in thermal equilibrium, and (3) the flow is isentropic and steady. Integral Effects An experiment in which the primary focus is on the interactions Test between parameters and processes. LB Large break. LOCA Loss of coolant accident. Model (without “evaluation” modifier) - Equation or set of equations that represents a particular physical phenomenon within a calculational device. PCT Peak Cladding Temperature - The maximum fuel element cladding temperature. Phase State of matter involved in transport process, usually liquid or gas. PIRT Phenomena Identification and Ranking Table - May refer to a table, or to a process depending on context of use. The process relates to determining the relative importance of phenomena (and/or physical processes) to the behavior of a nuclear power plant following the initiation of an accident or other transient. A PIRT table is a listing of the results of application of the process. QA Quality assurance. RAI Request for additional information - A documented request, usually in the form of questions, sent by the NRC to the submitter to obtain more information on areas under review. Roadmap A document used to facilitate navigation through a larger and complex set of documentation. SB Small break. Scaling The process in which the results from a subscale facility (relative to a nuclear power plant) and/or the modeling features of a calculational device are evaluated to determine the degree to which they represent a nuclear power plant. Scaling Distortions Errors introduced into the data as a result of scaling the experimental facility. Scenario Time sequence of events. Sensitivity Studies The term is generic to several types of analyses; however, the definition