The measurement of gas solid two-phase flow parameters based on electrical capacitance tomography technology
by Haijun Tian; Yunlong Zhou; Ting Yang; Yanghui Zhao
International Journal of Networking and Virtual Organisations (IJNVO), Vol. 20, No. 1, 2019

Abstract: In order to realise visualisation measurement of gas-solid two-phase flow parameters, a gas-solid two-phase flow test-bed was developed. Polypropylene particles select as the solid phase, the air select as the gas phase. Solid phase rely on their own gravity flow through experimental device. M3C capacitance tomography device of ITS Company is used for test and research solid phase concentration, speed, mass flow rate about gas-solid two-phase flow parameters. Concentration measurement is based on the dielectric constant distribution of the pixels about image. Capacitive sensor was used to measure velocity with double layer structure. The relevant principles of measurement speed were used to compute the correlation of downstream sensor imaging pixel. Finally, his mass flow was calculated by the measured velocity and concentration distributions. The mass flow measurements were compared with the results of gravity sensor, and the results showed good agreement, measurement error was less than 10%. The experimental results show that the capacitance tomography system can be used to measure gas-solid two-phase flow parameters.

Online publication date: Fri, 07-Dec-2018

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