Distribution of permeable porous channels of porous medium sizes from pneumatic characteristics

Abstract

A method for estimation of the permeability coefficients distribution by the sizes of the pore channels of filter materials based on the analysis of parameters tangent to the displacement curve is proposed. The distribution of permeability coefficients by the sizes of pore channels in a polymer filtering material with a filtration fineness of 3 μm is obtained. It is shown that in the specified filter material, the most permeable pores through which the main stream passes (more than 75% of the total gas flow) are in the range of their diameters 13.8 - 22.4 μm.