Velocity Measurement of Gas-Solid by Means of Single Electrical Capacitance Tomography Sensor

Abstract

Velocity is one of the crucial parameters in the multiphase flow especially gas-liquid two-phase flow. Electrical capacitance tomography (ECT) offers robust, inexpensive, non-invasive and non-intrusive techniques in quantifying multiphase flow phenomena. This paper demonstrates methods to estimate average axial velocity by using a novel approach by means of single plane ECT sensor. The proposed method has been compared with a high-speed camera. Based on the three specific cases, all methods successfully estimate the axial average velocity with maximum percentage error is 3.431%.