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A study of the effect of particulate deposit upon fibrous filter efficiency

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journal contribution
posted on 31.03.2009, 11:59 by Sarah Dunnett, Charles F. Clement
The aim of this work is to develop numerical methods to model the effects that particle deposit collected by fibrous filters has upon the flow field within the filter and hence upon further deposition. A single fibre model has been developed with the deposit modelled as a porous layer on the fibre surface. Using mathematical techniques the flow field outside and within the porous layer are determined. Once the flow field for a particular deposit has been obtained the equations of motion of the particles are solved and the feedback effects of the deposit upon further deposition investigated. The mechanisms of interception and diffusion are considered. It is found that for the smaller particles the porosity of the deposit has an insignificant effect upon the flow field. However the porosity becomes increasingly important as the relative size of the particle to the fibre increases.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Citation

DUNNETT, S.J. and CLEMENT, C.F., 2009. A study of the effect of particulate deposit upon fibrous filter efficiency. Journal of Physics: Conference Series, 151, 012057

Publisher

© Institute of Physics

Version

AM (Accepted Manuscript)

Publication date

2009

Notes

This article was published in the journal, Journal of Physics: Conference Series [© Institute of Physics] and the definitive version is available at: http://www.iop.org/EJ/abstract/-search=62358342.1/1742-6596/151/1/012057

ISSN

1742-6588;1742-6596

Language

en

Exports

Loughborough Publications

Keywords

Exports