A Methodology to Reduce Uncertainty Allowance in Channel Flow Verification

Abstract

This paper is a continuation of a previous CNS publication which described a methodology for flow monitoring in CANDU reactor channels. The work undertaken by design and operations personnel in a multi -unit operating power station, which has resulted in a significant reduction in spurious alarms without compromising reactor safety, is reported here. A methodology to reduce the uncertainty allowance in channel flow verification is also presented.