Document: NUREG-0800
Document ID: 45365840-b317-4094-89a8-02dbe0093404
Document Type: srp
Title: 15.3.2.-8
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550010.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.3.1
CFR Part: 
CFR Title: 

Content:
ents. 3. The applicant’s mathematical models to evaluate core performance and to predict system pressure in the reactor coolant system and main steam lines are reviewed for whether these models have been reviewed and accepted by the staff. If not, the reviewer initiates a generic review of the applicant’s proposed model. 4. The values of system parameters and initial core and system conditions as input to the model are reviewed. Of particular importance are the reactivity coefficients and control rod worths in the applicant's analysis and the variations of moderator temperature, void, and Doppler coefficients of reactivity with core life. The reviewer evaluates both the justification showing that the applicant has selected the core burn-up yielding the minimum margins and the values of the reactivity parameters in the applicant's analyses. 5. The results of the analysis are reviewed and compared to the acceptance criteria of subsection II of this SRP section for the maximum pressure in the reactor coolant and main steam systems as well as minimum DNBR (PWR) or MCPR (BWR if applicable). Time-related variations of the following parameters should be reviewed for consistency: