The Effect of External Electrostatic Field Orientation on Aerosol Filtration by Granular Filters

Michael Shapiro, Gabriel Laufer, Chaim Gutfinger

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

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.

Original languageEnglish
Pages (from-to)230-234
Number of pages5
JournalIEEE Transactions on Industry Applications
VolumeIA-22
Issue number2
DOIs
StatePublished - 1986

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