Title :
Application of electrical capacitance tomography to the void fraction measurement of two-phase flow
Author :
Huang, Zhiyao ; Wang, Baoliang ; Li, Haiqing
Author_Institution :
Nat. Lab. of Ind. Control Technol., Zhejiang Univ., Hangzhou, China
fDate :
2/1/2003 12:00:00 AM
Abstract :
Based on the electrical capacitance tomography technique, a new method for the void fraction measurement of two-phase flow is proposed. A 12-electrode void fraction measurement system is established. A mathematical model of image reconstruction of electrical capacitance tomography is developed. To obtain the quantitative information of two-phase flow, combining the Tikhonov regularization principle and the algebraic reconstruction technique algorithm, a new image reconstruction algorithm is presented. The experimental results show that the accuracy of void fraction measurement is satisfactory. The proposed method is suitable for the void fraction measurement of many kinds of two-phase flow.
Keywords :
capacitance measurement; electric impedance imaging; flow measurement; image reconstruction; two-phase flow; Tikhonov regularization; algebraic reconstruction technique algorithm; electrical capacitance tomography; image reconstruction; mathematical model; two-phase flow; void fraction measurement; Capacitance measurement; Capacitive sensors; Data acquisition; Dielectric measurements; Electric variables measurement; Electrical capacitance tomography; Electrodes; Fluid flow measurement; Image reconstruction; Permittivity measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2003.809087
