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:
that could lead to a SBLOCA if not isolated), and compared with the acceptance criteria presented in subsection II of this SRP section regarding maximum pressure in the reactor coolant and main steam systems. The parameters reviewed are: 1. variations with time during the transient of the neutron power, 2. heat fluxes (average and maximum), 3. reactor coolant system pressure, 4. minimum DNBR (PWR) or CPR (BWR), 5. core and recirculation loop coolant flow rates (BWR), 6. coolant conditions (inlet temperature, core average temperature (PWR), core average steam volume fraction (BWR), average exit and hot channel exit temperatures, and steam fractions), 7. steamline pressure, 8. containment and suppression pool (if applicable) pressures and temperatures , 9. pressure relief valve flow rate and quality, 10. pressurizer water volume (in PWRs), and 11. flow rate from the reactor coolant system to the containment system (if applicable). The more important of these parameters for the loss of normal feedwater transient are compared with those predicted for other similar plants to see that they are within the range expected. For review of a DC application, the reviewer should follow the above procedures to verify that the design, including requirements and restrictions (e.g., interface requirements and site parameters), set forth in the final safety analysis report (FSAR) meets the acceptance criteria. DCs have referred to the FSAR as the design control document (DCD). The reviewer should also consider the appropriateness of identified COL action items. The reviewer may identify additional COL action items; however, to ensure these COL action items are addressed during a COL application, they should be added to the DC FSAR. 15.2.7-10 Revision 2 - March 2007 For review of a COL application, 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