Document: NUREG-0800
Document ID: ecb92ac6-97df-4e4b-a20a-81638c2d573b
Document Type: srp
Title: - 15.3.4
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350157.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.3.3
CFR Part: 
CFR Title: 

Content:
perator action to secure and maintain the reactor in a safe condition. The analytical methods are reviewed by RSB to ascertain whether the mathematical modeling and computer codes have been previously reviewed and accepted by the staff. If a referenced analytical method has not been previously reviewed, the RSB reviewer requests initiation of a generic evaluation of the new analytical model by CPB. The values of all parameters used in a new analytical model, including the initial conditions of the core and system, are reviewed. It is the responsi- bility of the RSB reviewer to contact his counterpart in the Core Performance Branch (CPB) to ensure that the appropriate physics and fuel data have been used in any staff calculations. In addition, the RSB will coordinate other branches' evaluations that interface with the overall review of the system as follows: The ICSB reviews the instru- mentation and controls aspects of the sequence described in the SAR to confirm that reactor and plant protection and safeguards controls and instrumentation systems will function as assumed in the safety analysis as part of its primary review responsibility for SRP Sections 7.2 through 7.5 (Refs. 14 through 17). The CPB performs generic reviews of the thermal-hydraulic computer models used for this transient and also performs, upon request, additional analyses related to these accidents for selected reactor types as part of its primary review responsibility for SRP Section 4.4 (Ref. 12). The Accident Evaluation Branch (AEB) is notified regarding the extent of the fuel failures that are predicted by the analysis. AEB then evaluates the radiological consequences of the event. For those areas of review identified above as being reviewed as part of the primary review responsibility of other branches, the acceptance criteria necessary for the review and their methods of application are contained in the referenced SRP section of the corresponding review branch. II. ACCEPTANCE CRITERIA- The