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:
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 all such differences were satisfactorily justified by the applicant. The applicant's thermal-hydraulic analyses were performed using analytical methods and correlations that have been previously reviewed by the staff and found acceptable. For a CP, the following conclusions should be made: 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. 93 The core and associated coolant, control, and protection systems hashave been designed 94 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 thermal-hydraulic instabilities leading to power oscillations are not possible or can be reliably and readily detected and suppressed. This conclusion is based on the applicant's analyses of the core 95 thermal-hydraulic performance which was reviewed by the staff and found to be acceptable. The applicant will establish a preoperational and initial startup test program in accordance with Regulatory Guide 1.68 to measure and confirm the thermal-hydraulic design aspects. The loose parts and vibration monitoring system is designed consistent with the guidance for compliance with the requirements of Regulatory Guide 1.133 and 96 the instrumentation for the detection of inadequate core cooling is in compliance with the requirements of item II.F.2 of NUREG-0718. For an OL application, 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 Criterion 10 Criteria 10 and 12, of Appendix A to 10 CFR Part 50 97 and is acceptable for