Magnetically stabilized bed dust filters - Analysis through variable length scale approach

作者：Hristov Jordan^*

来源：Particuology, 2007, 5(1-2): 121-129.

DOI：10.1016/j.cpart.2007.03.001

• magnetic field
• magnetically stabilized bed filter
• scaling
• Richardson-Zaki law
• variable length scale
• dust filtration
• filter length scale

Magnetically stabilized beds are packed beds subjected to fluid-driven deformation and controlled by magnetically induced interparticle forces. This paper deals with magnetically stabilized beds as deformable porous media and describes their application in dust filtration. The Richardson-Zaki scaling law, U/U-1 = epsilon(n) describes the field controlled bed expansion via the exponent n, that yields a porosity-dependent flow length scale d(c) = d(p epsilon)(n). The paper addresses two issues: (i) deformation characteristics by assuming homogeneous bed expansion and a definition of bed variable flow length scale; (ii) dust filtration characteristics such as filter coefficient, specific deposit and filtration efficiency expressed in terms of the variable flow length scale and illustrated by experimental data.

• 出版日期2007-4
• 单位北京化工大学