Title :
The Effect of External Electrostatic Field Orientation on Aerosol Filtration by Granular Filters
Author :
Shapiro, Michael ; Laufer, Gabriel ; Gutfinger, Chaim
Author_Institution :
Department of Chemical Engineering, Room 55-569, Massachusetts Institute of Technology, Cambridge, MA 02139.
fDate :
3/1/1986 12:00:00 AM
Abstract :
The separation of fine aerosol particles by a packed granular-bed filter, enhanced by external electrostatic fields, was studied experimentally and theoretically. The filtration efficiencies of charged and neutralized aerosols were measured for external fields aligned with the air flow, transverse to the flow, and opposite to the flow. Theoretical models of electrostatically enhanced granular-bed filtration of micrometer and submicrometer particles were developed. Experimental results which demonstrate the relative merit of each configuration were presented and compared with the theory. The parallel-field configuration yielded the best filtration efficiency followed by the transverse configuration.
Keywords :
Aerosols; Chemical technology; Cities and towns; Current measurement; Electrostatic measurements; Filters; Filtration; Industry Applications Society; Mechanical engineering; Parametric study;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.1986.4504708