Document: NUREG-0800
Document ID: 145ec0f9-012b-4669-9627-ed1b1d0cce95
Document Type: srp
Title: THERMAL AND HYDRAULIC DESIGN
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070412.pdf
Revision Date: 2023-06
Chapter: 4
Section ID: 4.4
CFR Part: 
CFR Title: 

Content:
ed. The staff concludes that the thermal-hydraulic design of the core meets the requirements of General Design Criterion 10 Criteria 10 and 12, of Appendix A to 10 CFR Part 50 97 and is acceptable for final design approval. We also conclude that the reactor core and associated coolant, control, and protection systems havehas been designed with 98 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 thermal-hydraulic instabilities leading to power 4.4-13 DRAFT Rev. 2 - April 1996 oscillations are not possible or can be reliably and readily detected and suppressed, and 99 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 staff has reviewed the applicant's preoperational and initial startup test program and has concluded that it is acceptable. We also conclude that the loose parts monitoring program is designed consistent with the guidance for compliance with the requirements of Regulatory Guide 1.133, and is, therefore, 100 acceptable. We have reviewed the instrumentation for the detection of inadequate core cooling and concluded that it is in compliance with the acquirements of Item II.F.2 of NUREG-0737 and is acceptable. For design certification reviews, the findings will also summarize, to the extent that the review is not discussed in other safety evaluation report sections, the staff's evaluation of inspections, tests, analyses, and acceptance criteria (ITAAC), including design acceptance criteria (DAC), site