Experimental study of submicrometer and ultrafine particle penetration and pressure drop for high efficiency filters

Douglas W. VanOsdell, Benjamin Y.H. Liu, Kenneth L. Rubow, David Y.H. Pui

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

The fractional penetration of submicrometer particles through five high-efficiency glass fiber filters, one composite fiber filter, and two membrane filters was measured for particles of 0.004–0.42-μm diameter at filter face velocities ranging from 0.5 to 20 cm/s. The glass fiber filters all had approximately the same thickness and weight per unit area, and were rated 93% to 99.999% efficient using the conventional 0.3-μm dioctyl phthalate (DOP) test. The challenge aerosols were electrically classified monodisperse DOP in the diameter range of 0.032–0.42 μm, and polydisperse silver condensation aerosols having diameters of ∼ 0.004–0.01 μm. Aerosol penetration through these media was found to be generally consistent with current theory for collection by diffusion and interception over the particle size and velocity range studied. Using a filter figure of merit calculated for penetration by 0.1- and 0.3-μm particles to facilitate comparison, all of the filters except one tetrafluoroethylene membrane filter (which was slightly better) had about the same performance.

Original languageEnglish (US)
Pages (from-to)911-925
Number of pages15
JournalAerosol Science and Technology
Volume12
Issue number4
DOIs
StatePublished - Jan 1 1990

Bibliographical note

Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.

Fingerprint

Dive into the research topics of 'Experimental study of submicrometer and ultrafine particle penetration and pressure drop for high efficiency filters'. Together they form a unique fingerprint.

Cite this