The Charging and Stability of Electret Filters

Abstract

Having a long history in aerosol filtration technologies, electret filters are one of the basic solutions to provide high particle capture efficiency at a low pressure drop and energy expense. However, their reliability is still an ongoing issue from the aspects of high efficiency and stability. In this chapter the theory behind electret mechanism, charging of the fibrous materials, their discharging and stability were reviewed in detail. Physics behind the widely used electret filter charging/polarization mechanisms were also discussed.

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Authors/Creators:	Kilic, A Russell, SJ https://orcid.org/0000-0003-0339-9611 Shim, E Pourdeyhimi, B
Keywords:	Electrostatic filtration; electret; charging; stability
Dates:	Accepted: 1 June 2017 Published (online): 23 June 2017 Published: 3 August 2017
Institution:	The University of Leeds
Academic Units:	The University of Leeds > Faculty of Arts, Humanities and Cultures (Leeds) > School of Design (Leeds)
Depositing User:	Symplectic Publications
Date Deposited:	10 Aug 2017 14:00
Last Modified:	10 Aug 2017 14:00
Published Version:	https://doi.org/10.1016/B978-0-08-100573-6.00025-3
Status:	Published
Publisher:	Woodhead Publishing Limited (Elsevier)
Series Name:	Woodhead Publishing Series in Textiles
Identification Number:	https://doi.org/10.1016/B978-0-08-100573-6.00025-3

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The Charging and Stability of Electret Filters

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