Document: NUREG-0800
Document ID: 6391d75a-c491-424a-9295-f82fa522a166
Document Type: srp
Title: -
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0622/ML062210398.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.2.1
CFR Part: 
CFR Title: 

Content:
adjustments and parameter changes; test specifications and methods; and operating pocedures and EOPs. Additionally, the reviewer should verify that the licensee adequately considered operating experience of problems, malfunctions, or other unexpected consequences from previous power uprates. b. Introduction of New Thermal-Hydraulic Phenomena or Identified System Interactions The reviewer should provide assurance that the licensee adequately addressed the effects of any new thermal-hydraulic phenomena or system interactions that may be introduced as a result of the EPU. c. Facility Conformance to Limitations Associated With Computer Modeling and Analytical Methods If the licensee proposes to omit a test (or tests) from the EPU testing program based on the results of computer modeling and analytical methods (simply referred to as analytical methods for the purposes of this discussion), the reviewer should confirm that plant modifications, setpoint adjustments, and parameter changes that have been or will be made do not tend to invalidate the analytical methods being used. In this case, the licensee is expected to discuss and fully justify the use of analytical methods for this purpose. Considerations include, but are not limited to, the nature, capability, applicability, accuracy, and sensitivity of the analytical methods being used, including sensitivities associated with extrapolating the use of these methods to encompass EPU conditions; conformance to any limitations that apply; the extent that the analytical methods have been updated and corrected to reflect plant behavior following specific plant transients that have occurred; SSCs important to safety that are not modeled and why it is not necessary to include these SSCs in the model to adequately predict transient plant behavior; the impact of plant modifications, setpoint adjustments, and parameter changes on the validity, accuracy, and sensitivity of the analytical methods being used; and measures in the test