Effect of particle electrostatic charge on aerosol filtration by a fibrous filter

摘要: Abstract This study aimed to investigate the influence of particle charge level on collection efficiency and pressure drop during aerosol filtration in a fiber filter. An Electrostatic Charge Classifier (ECC) measured as function diameter. The filter was made polypropylene; its mass per area 600 g/m2, diameter 0.047 m, thickness 0.0026 m. Phosphate rock test dust (density: 3030 kg/m3; average Stokes diameter: 3.25 μm). dispersed air by TSI Venturi type generator, model SSPD 3433. charging achieved corona charger. A relationship between particles their identified. From results, it analyzed effect electrostatic charges performance (collection drop). correlations from literature did not adequately predict experimental data behaviour. Thus, we proposed new expression for electrophoretic mechanism, which consistent with results found this research, well other studies literature.