Electrical Impedance Tomography Technique for the Visualization of the Phase Distribution in an Annular Tube

Min Chan Kim; Kyung Youn Kim; Sin Kim; Heon Ju Lee; Yoon Joon Lee

Journal of Industrial and Engineering Chemistry, Vol.8, No.2, 168-172, March, 2002

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Electrical Impedance Tomography Technique for the Visualization of the Phase Distribution in an Annular Tube

Min Chan Kim^†, Kyung Youn Kim¹, Sin Kim², Heon Ju Lee², and Yoon Joon Lee²

Department of Chemical Engineering, Cheju Nationla University, Cheju 690-756, Korea
¹Department of Electronic Engineering, Cheju Nationla University, Cheju 690-756, Korea
²Department of Nuclear and Energy Engineering, Cheju Nationla University, Cheju 690-756, Korea

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The experimental and algorithmic works are conducted to obtain the phase distribution in the two-phase flow using the electrical impedance tomography (EIT) in an annular geometry. The finite element method (FEM) is employed in the forward problem and a regularized Newton-Raphson iterative method is used in the inverse problem. The reconstructed images based on our numerical algorithm and experimental works identify the position of dispersed phase. The quality of reconstructed image seems to be dependent on the number and position of the targets. It seems that our works can be used to visualize the phase distribution in an annular tube.

Keywords:phase distribution;electrical impedance tomography;annular tube;phantom experiments

[References]

Jones OC, Lin JT, Ovacik L, Shu H, Nucl. Eng. Des., 141, 159 (1993)
Vauhkonen M, Vadasz D, Karjalainen PA, somersalo E, Kaipio JP, IEEE Trans. Med. Imaging., 17, 285 (1998)
Kim MC, KIm S, Kim KY, Lee YJ, Int. Comm. Heat Mass Trans., 28, 773 (2001)
Vauhkonen M, Electrical Impedance Tomography and Prior Information, Ph.D. thesis, Kuopio University, Finland (1997)
Kim MC, Kim S, Kim KY, Lee JH, Lee YJ, J. Ind. Eng. Chem., 7(5), 341 (2001)
Middleman S, An Introduction to Fluid Mechanics Wiley, NY (1998)
Hua P, Webster JG, Tompkins WJ, Clin. Phys. Physiol. Meas., Suppl. A, 9, 137 (1988)
Chenny M, Isaacson D, Nowell JC, Simske S, Globe J, Int. J. Imaging Sys. Technol., 2, 65 (1991)
Webster JG, Electrical Impedance tomography, Adams Hilger, Bristol, U.K (1990)

[Referenced By]

[Related Articles]

[1] Jones OC, Lin JT, Ovacik L, Shu H, Nucl. Eng. Des., 141, 159 (1993)

[2] Vauhkonen M, Vadasz D, Karjalainen PA, somersalo E, Kaipio JP, IEEE Trans. Med. Imaging., 17, 285 (1998)

[3] Kim MC, KIm S, Kim KY, Lee YJ, Int. Comm. Heat Mass Trans., 28, 773 (2001)

[4] Vauhkonen M, Electrical Impedance Tomography and Prior Information, Ph.D. thesis, Kuopio University, Finland (1997)

[5] Kim MC, Kim S, Kim KY, Lee JH, Lee YJ, J. Ind. Eng. Chem., 7(5), 341 (2001)

[6] Middleman S, An Introduction to Fluid Mechanics Wiley, NY (1998)

[7] Hua P, Webster JG, Tompkins WJ, Clin. Phys. Physiol. Meas., Suppl. A, 9, 137 (1988)

[8] Chenny M, Isaacson D, Nowell JC, Simske S, Globe J, Int. J. Imaging Sys. Technol., 2, 65 (1991)

[9] Webster JG, Electrical Impedance tomography, Adams Hilger, Bristol, U.K (1990)