IPX_08_extended_rev1.pdf (588.9 kB)
A study of the effect of particulate deposit upon fibrous filter efficiency
journal contribution
posted on 2009-03-31, 11:59 authored by Sarah DunnettSarah Dunnett, Charles F. ClementThe 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, 012057Publisher
© Institute of PhysicsVersion
- AM (Accepted Manuscript)
Publication date
2009Notes
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=62358342.1/1742-6596/151/1/012057ISSN
1742-6588;1742-6596Publisher version
Language
- en