The licensing processes on uprating of current light water reactors (LWRs) are classified into three categories by US NRC, one of which is the uprating by MU, Measurement Uncertainty Recapture, targeting the uprating up to 2%. MU is enabled by the measurement-accuracy improvement of a feedwater flowmeter with 0.5~1.7% without issues arising from safety matters and remodeling equipment. Time-of-flight type ultrasonic flowmeters have been widely used in industries. However, it has to be considered the tracea...
英字タイトル:
Current Status on High-accuracy Ultrasonic Flowmeter Development for FeedwaterFlow Rate Measurements in Light Water Reactors