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Simulation and experimental measurement of dynamic behavior of solid foam filter for diesel exhaust gas

Paper ID Volume ID Publish Year Pages File Format Full-Text
55368 47049 2012 10 PDF Available
Title
Simulation and experimental measurement of dynamic behavior of solid foam filter for diesel exhaust gas
Abstract

A new diesel particulate filter (DPF) based on solid β-SiC foam is presented in this work. This solid foam filter becomes a promising alternative to the common wall flow filter, as it is effective in filtering ultra fine soot particles and provides a larger specific surface area for catalytic coating. This new DPF is validated with a series of experiments, which are realized on real bench test. A simplified descriptive model based on the new analogy between solid foams and fiber filter is developed. The equations of the model describe the fluid flow, the diffusion phenomenon, inertia and direct intercept mechanisms to describe the filtration processes. The simulations show a good agreement between the experimental data and the model. This model is able to supply information about the filtration efficiency of the exhaust gas particles and the pressure drop along the solid foam filter, consequently it can be used in order to estimate the catalytic activity (i.e. the total number of soot particles consumed by the catalytic reaction).

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (125 K)Download as PowerPoint slideHighlights► Medium surface area SiC foam as diesel particulate filter. ► High filtration efficiencies with a low pressure drop. ► A simplified descriptive model for solid foam filter is presented for the first time.

Keywords
Filtration; Solid foam; Pressure drop; Filter coefficient
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Simulation and experimental measurement of dynamic behavior of solid foam filter for diesel exhaust gas
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 189, Issue 1, 30 July 2012, Pages 101–110
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us