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:
ant complies with the documentation requirements and design requirements described in item II.F.2 of NUREG-0737. Generic Letter 82-28 describes acceptable PWR ICC instrumentation. Generic Letter 84-23 describes acceptable BWR ICC instrumentation. In addition, the reviewer verifies that BWR applicants have addressed noncondensible gases that may become dissolved in the reference leg of BWR water level instrumentation consistent with the positions indicated in Generic Letter 92-04. C. The reviewer consults with the organization responsible for the review of the design acceptability of the ICC instrumentation and displays. The reviewer also consults with the organization responsible for the review of the acceptability of guidelines and procedures for recognition and response to ICC conditions. 16. For new plant applicants and those PWRs subject to Generic Letter No. 88-17, the reviewer verifies that analyses of the thermal-hydraulic conditions during shutdown and low-power operations have been completed. The analyses should supplement existing information and should encompass thermodynamic and physical states, such as a rapid boron dilution event during shutdown conditions (NUREG-1449) to which the plant can be subjected. The analysis should be of sufficient depth to provide a basis for shutdown procedures, instrumentation, equipment interaction, equipment response, and operator response. Similarly, for ESBWR systems where core flow and flow distribution is directly related to core power, the thermal and hydraulic analysis should provide a basis for shutdown procedures, equipment response, and operator response. 17. The reviewer determines whether the applicant’s proposed preoperational and initial startup test programs are consistent with the intent of Regulatory Guide 1.68. The reviewer assures that the applicant has provided sufficient information to clearly identify the test objectives, methods of testing, and acceptance criteria. The test scope should include