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Title: A finite-volume-based two-dimensional wall-flow diesel particulate filter regeneration model
Authors: Law, Ming-Chiat
Clarke, Andrew
Garner, Colin P.
Williams, Andrew M.
Keywords: Diesel
Chemical reactions
Non-thermal equilibrium
Issue Date: 2008
Publisher: Sage (© IMechE)
Citation: LAW, M.C. ... et al., 2008. A finite-volume-based two-dimensional wall-flow diesel particulate filter regeneration model. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 222(5), pp.829-857.
Abstract: Many existing diesel particulate filter (DPF) models do not sufficiently describe the actual physiochemical processes that occur during the regeneration process. This is due to the various assumptions made in the models. To overcome this shortcoming, a detailed twodimensional DPF regeneration model with a multistep chemical reaction scheme is presented. The model solves the variable density, multicomponent conservation equations by the pressure implicit with splitting of operators (PISO) scheme for inlet and outlet channels as well as the porous soot layer and filter wall. It includes a non-thermal equilibrium (NTE) model for the energy equation for porous media. In addition, for the first time, experiments on the DPF were conducted to determine the interstitial heat transfer coefficient inside the DPF porous wall. The results compare well with an in-house one-dimensional model and subsequently this was used in the new two-dimensional model. By using this detailed two-dimensional model, some interesting observations of the DPF regeneration process were revealed. These included flow reversals and asymmetry in the filter channels.
Sponsor: The authors gratefully acknowledge Loughborough University and the DTI/DfT Foresight Vehicle ‘LOCOFILT’ Programme for supporting this research. Perkins Engines and the Royal Academy of Engineering are also gratefully acknowledged for supporting the authors.
Version: Accepted for publication
DOI: 10.1243/09544070JAUTO680
URI: https://dspace.lboro.ac.uk/2134/15684
Publisher Link: http://dx.doi.org/10.1243/09544070JAUTO680
ISSN: 0954-4070
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

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