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The effects of soot properties on the regeneration behaviour of wall-flow diesel particulate filters

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journal contribution
posted on 12.06.2009, 14:06 authored by Ming-Chiat Law, Andrew Clarke, Colin GarnerColin Garner
In recent years, significant effort has been put into studying the regeneration process of diesel particulate filters (DPFs) either through experiments or modelling. However, less attention is paid to understanding the important influence of soot properties on the regeneration process. In this paper, for the first time, five fundamental soot properties, namely activation energy, frequency factor of the reaction, soot bulk density, porosity and mean soot particulate diameter, are investigated. Sensitivity analyses are carried out for each of these parameters based on a one-dimensional generalized DPF regeneration model. It is found that activation energy is the most important factor in the regeneration process, followed by frequency factor, bulk density, porosity and mean particulate size. In addition, the results also indicate that the concentration of exhaust gas oxygen has a significant influence on the role played by each parameter. This clearly shows the importance of gas diffusion in the regeneration process.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

LAW, M.C., CLARKE, A.A. and GARNER, C.P., 2004. The effects of soot properties on the regeneration behaviour of wall-flow diesel particulate filters. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 218(12), pp. 1513-1524.

Publisher

Professional Engineering Publishing / © IMECHE

Version

VoR (Version of Record)

Publication date

2004

Notes

This is an article from the journal, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering [© IMechE ]. It is also available at:http://dx.doi.org/10.1243/0954407042707632

ISSN

0954-4070

Language

en