Comparative Study on the Permeability of Woven Mono-& Multi-filaments Filter Media

The investigation has been conducted on characters of fluid -flow resistance, permeability and their regression equations related to aperture and porosity of monofilament/ multifilament filter media.Results show that the resistance of filter cloth to fluid-flow could be divided into viscose and inertial type,which is expressed with the resistance factor, f,the relations betweenf and Reynold number are f=1.2393/NRe+0.0098( Mono-filament) and/=2.1034/NRe+0.0089 (Multi-filament),and the relations between the permeability and aperture porosity of woven filter cloth are BF=60.09db-0.512em-0.324 (Mono-filament) and BF=5,11×10-5db1.678em2.341(Multi-filament).