Document: NUREG-0800
Document ID: 4b58df3f-1f93-4271-aa73-22de04083915
Document Type: srp
Title: LOSS OF NORMAL FEEDWATER FLOW
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0703/ML070300709.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.2.7
CFR Part: 
CFR Title: 

Content:
plication, the scope of the review is dependent on whether the COL applicant references a DC, an early site permit (ESP) or other NRC approvals (e.g., manufacturing license, site suitability report or topical report). IV. EVALUATION FINDINGS The reviewer verifies that the applicant has provided sufficient information and that the review and calculations (if 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. The staff has reviewed the analyses of the loss of normal feedwater flow event and concludes that the analyses have adequately accounted for the operation of the plant and were performed using acceptable analytical models. The staff further concludes that the analyses have demonstrated that the reactor protection and safety systems will continue to ensure that the SAFDLs and the RCPB pressure limits will not be exceeded as a result of the loss of normal feedwater flow. The staff concludes that the plant design is acceptable with regard to transients resulting from loss of normal feedwater that are expected to occur with moderate frequency and that the predicted response meets the requirements of GDC 10, 13, 15, 17, and 26. This conclusion is based on the following: The applicant has met the requirements of GDC 10 and 26 with respect to demonstrating that SAFDLs are not exceeded for this event and has met the requirements of GDC 15 with respect to demonstrating that the reactor coolant pressure limits have not been exceeded by this event. The applicant meets GDC 13 requirements by demonstrating that all credited instrumentation was available, and that actuations of protection systems, automatic and manual, occurred at values of monitored parameters that were within the instruments’ prescribed operating ranges. The parameters used as input to the analytical model were reviewed and found to be suitably conservative and in accordance with the