Electrochemical Ionic Mass Transfer Correlation in Fluid-Saturated Porous Layer

Eun Su Cho

Korean Chemical Engineering Research, Vol.53, No.6, 814-817, December, 2015

DOI10.9713/kcer.2015.53.6.814 Export Citation

Electrochemical Ionic Mass Transfer Correlation in Fluid-Saturated Porous Layer

Eun Su Cho^†

Department of Chemical Engineering, Hoseo University, Asan 31499, Korea

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A new ionic mass transfer correlation is derived for the fluid-saturated, horizontal porous layer. Darcy-Forchheimer model is used to explain characteristics of fluid motion. Based on the microscales of turbulence a backbone mass transfer relation is derived as a function of the Darcy-Rayleigh number, RaD and the porous medium Schmidt number, Scp. For the Darcy’s limit of Scp>>RaD, the Sherwood number, Sh is a function of RaD only. However, for the region of high RaD, Sh can be related with RaDScp. Based on the present backbone equation and the electrochemical mass transfer experiments which are electro plating or electroless plating, the new ionic mass transfer correlation is suggested in the porous media.

Keywords:Ionic Mass Transfer Correlation;Porous Media;Texture;Microscale Turbulence Model;Electroless Plating;Conductivity

[References]

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[1] Nield DA, Bejan A, Convection in Porous Media, 3rd ed., Springer (2006).

[2] Howard LN, Proc. 11th Int. Cong. Appl. Mech., 449 (1964)

[3] Long RR, J. Fluid Mech., 73, 445 (1976)

[4] Cheung FB, J. Fluid Mech., 97, 743 (1980)

[5] Arpaci VS, Int. J. Heat Mass Transf., 29, 1071 (1986)

[6] Katto Y, Masuoka T, Int. J. Heat Mass Transf., 10, 297 (1967)

[7] Wragg AA, Electrochim. Acta, 13, 2159 (1968)

[8] Fenech EJ, Tobias CW, Electrochim. Acta, 2, 311 (1960)

[9] Newman JS, Electrochemical System, 2nd ed., Prentice Hall (1991).

[10] Goldstein RJ, Fleischer AS, Hogerton PB, J. Heat Transf. -Trans. ASME, 123, 1015 (2001)

[11] Goldstein RJ, Chiang HD, See DL, J. Fluid Mech., 213, 111 (1990)

[12] Levich VG, Physiochemical Hydrodynamics, Prentice Hall (1962).

[13] Shin SI, Yoon DY, Choi CK, HWAHAK KONGHAK, 36(6), 958 (1998)

[14] Chung TJ, Choi CK, Yoon DY, Kim MC, Int. J. Heat Mass Transf., 53(23-24), 5139 (2010)

[15] Wang M, Bejan A, Int. Commun. Heat Mass Transf., 14, 617 (1987)

[16] Busse FH, Joseph DD, J. Fluid Mech., 54, 521 (1972)

[17] YOON DY, CHOI CK, Korean J. Chem. Eng., 6(2), 144 (1989)

[18] Bard AJ, Faulkner LR, Electrochemical Methods. Fundamentals and Applications, 2nd ed., Wiley, New York, NY (2001).

[19] Jung JW, “Ionic Mass Transfer by Natural Convection in a Horizontal Fluid Layer,” M. S. theis, Seoul National University (1988).