Quantifying scheme for detection heterogeneous phase in a pipe vessel

Abstract

This paper describes the different ultrasonic tomography for multiphase flow such as liquid/gas flow which commonly found in chemical columns and industrial pipelines. The information obtained through this research has proven to be useful for further development of ultrasonic tomography. This includes acquiring and processing ultrasonic signals from the transducers to obtain the information of the spatial distributions of liquid and gas in an experimental column. A k-NN analysis on the transducers’ signals has been carried out to distinguish between the observation time and the Lamb waves. The information obtained from the observation time is finally used to classify the heterogeneous phase between liquid and gas. It is found that the detection rate reaches 96.67%.