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Journal of Porous Media
Impact-faktor: 1.49 5-jähriger Impact-Faktor: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN Druckformat: 1091-028X
ISSN Online: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v9.i3.40
pages 223-234

Natural Convective Mass Transfer from Embedded Cylinders in Saturated Porous Media

S. U. Rahman
Electrochemical Research Group, Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran-31261, Kingdom of Saudi Arabia
M. Al-Khater
Electrochemical Research Group, Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran-31261, Kingdom of Saudi Arabia
N. A. Al-Baghli
Electrochemical Research Group, Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran-31261, Kingdom of Saudi Arabia
M. A. Abul-Hamayel
Electrochemical Research Group, Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran-31261, Kingdom of Saudi Arabia

ABSTRAKT

Natural convective mass transfer coefficients from vertical cylinders of varying aspect ratio, embedded in saturated porous media, were measured using the limiting diffusion current technique. A copper ion reduction from an acidified cupric sulphate solution was used as the electrolyte. Randomly packed identical glass spheres of different size formed the porous media that were saturated with electrolyte solution The obtained data are correlated in terms of modified Sherwood number (ShL* ), modified Rayleigh number (RAL* ), and Darcy numbers (DaL). The correlation is expected to work in the range
6 × 104 < RaL* < 6.1 × 106 and 1.40 × 10−6 < DaL < 1.02 × 10−3.