Document: NUREG-0800
Document ID: 8da52d2b-9980-4076-8056-2cafebb25ed6
Document Type: srp
Title: THERMAL AND HYDRAULIC DESIGN
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550060.pdf
Revision Date: 2023-06
Chapter: 4
Section ID: 4.4
CFR Part: 
CFR Title: 

Content:
applicable) support conclusions of the following type to be included in the staff’s safety evaluation report. The reviewer also states the bases for those conclusions. 4.4-13 Revision 2 - March 2007 1. The following paragraph is applicable to DC: The thermal-hydraulic design of the core for the __________ plant was reviewed. The scope of review included the design criteria, preliminary core design, and steady-state analysis of the core thermal-hydraulic performance. The review concentrated on the differences between the proposed core design (and criteria) and those designs and criteria that have been previously reviewed and found acceptable by the staff. It was found that the applicant satisfactorily justified all such differences The applicant performed its thermal-hydraulic analyses using analytical methods and correlations that have been previously reviewed by the staff and found to be acceptable. 2. For OL and COL applications, the following types of conclusions should be supported: The staff concludes that the thermal-hydraulic design of the core meets the requirements of General Design Criteria 10 and 12 of Appendix A to 10 CFR Part 50 and is acceptable for final design approval. The staff also concludes that the reactor core and associated coolant, control, and protection systems have been designed with appropriate margin to assure that acceptable fuel design limits are not exceeded during steady-state operation or anticipated operational occurrences. In meeting this objective, the design provides assurance that the reactor will perform its safety functions throughout its design lifetime under all modes of operation. This conclusion is based on the applicant’s analyses of the core thermal-hydraulic performance which was reviewed by the staff and found to be acceptable. The applicant has committed to a preoperational and initial startup test program in accordance with Regulatory Guide 1.68 to measure and confirm the thermal- hydraulic design aspects. The