Pressure Drop and Aerosol-Particle-Collection Efficiency of Polydisperse Fibrous Filters

Pressure Drop and Aerosol-Particle-Collection Efficiency of Polydisperse Fibrous Filters The effect of the polydispersity of fibrous materials on the viscous drag and the efficiency of gas filtration has been studied. The dependence of the Brinkman constant on parameter βg, which characterizes the variance of the lognormal function of fiber-length distribution over fiber radii, has been calculated for equations describing the hydrodynamics of a gas in a porous medium. The dependences of the effective aerosol- particle-collection efficiency on the packing density, dispersion of fiber-size scatter, and average fiber radius have been investigated. Quality parameters of filters with different degrees of polydispersity have been compared. Results of calculations have been compared with experimental data. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Colloid Journal Springer Journals

Pressure Drop and Aerosol-Particle-Collection Efficiency of Polydisperse Fibrous Filters

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Pleiades Publishing, Ltd.
Subject
Chemistry; Polymer Sciences; Surfaces and Interfaces, Thin Films
ISSN
1061-933X
eISSN
1608-3067
D.O.I.
10.1134/S1061933X18030031
Publisher site
See Article on Publisher Site

Abstract

The effect of the polydispersity of fibrous materials on the viscous drag and the efficiency of gas filtration has been studied. The dependence of the Brinkman constant on parameter βg, which characterizes the variance of the lognormal function of fiber-length distribution over fiber radii, has been calculated for equations describing the hydrodynamics of a gas in a porous medium. The dependences of the effective aerosol- particle-collection efficiency on the packing density, dispersion of fiber-size scatter, and average fiber radius have been investigated. Quality parameters of filters with different degrees of polydispersity have been compared. Results of calculations have been compared with experimental data.

Journal

Colloid JournalSpringer Journals

Published: Jun 1, 2018

References

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