An Experimental Study on Collection Efficiency by Model Filter

Abstract

The mechanism of the removal of aerosol particles was experimetally studied with a model filter. The model filter was composed of four filter elements which were manufactured by sticking glass fibers on a brass plate. The diameters of the fiber were 40μ and 80μ and the porosity of the filter was 0.75-0.88. The aerosols whose diameters were 0.7μ and 1.0μ were prepared with Sinclair-La-Mer type generator and stearic acid was used as aerosol particles. The experiment was carried out with the conditions that Re=dfuₛρ/μg were ranged between 0.1 and 1.0. In some cases there seemed to appear minimum collection efficiency. The results were analyzed by Fucks' model filter theory.