Micron-size particle filtration with dual wire artificial electret fibers

Author

Inculet, Ion I. ; Lackner, John R.

Author_Institution

Fac. of Eng. Sci., Univ. of Western Ontario, London, Ont., Canada

Volume

31

Issue

5

fYear

1995

Firstpage

942

Lastpage

946

Abstract

The authors present the construction, operation, and test results of a new type of electrostatic filter of very low pressure drop at usual flow-through velocities while providing excellent filtration for micron-size particles. The filter is constructed in the form of a thick mesh of dual wire fibers, electrically energized at approximately 200 V DC, and reversing the polarity at a very low frequency in the order of 5 mHz. While, in general, mechanical filters trap the particles on the air incoming surface, with subsequent rapid “blinding,” the new filter collects the particles inside the mesh volume thus offering a considerably longer life

Keywords

electrets; electrostatic devices; filtration; polarisation; 200 V; 5 mHz; air incoming surface; construction; dual wire artificial electret fibers; electrostatic filter; mechanical filters; mesh volume; micron-size particle filtration; particle trapping; polarity reversal; thick mesh; very low pressure drop; Air cleaners; Cable insulation; Electrets; Electrostatics; Filters; Filtration; Magnetic separation; Optical fiber polarization; Optical fiber testing; Wire;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.464502

Filename

464502