Mathematical Model for Assessing the Uncertainties of Instrumentation Measurements for Power and Flow of PWR (Presserized Water Reactor) Reactors.

摘要

A method of assessing the quantitative uncertainties in the determination of PWR powers and coolant flows caused by measurement uncertainties is provided. The method defines the parameters entering into the calculation, the types and sources of measurement errors which must be considered, together with sources of quantitative data for the uncertainties. A mathematical model is developed which combines the measurement uncertainties in a rigorous statistical manner to give the overall uncertainty in the desired parameter together with a sample calculation.