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CFD modelling of the automotive catalytic converter

Paper ID Volume ID Publish Year Pages File Format Full-Text
55469 47054 2012 12 PDF Available
Title
CFD modelling of the automotive catalytic converter
Abstract

This paper describes a computational study of a full size catalytic converter. The simulations are validated against experimental data obtained from the literature. It is seen that the flow distribution under both reacting and non-reacting conditions is a strong function of the converter properties, including such factors as the monolith cell density, the diffuser angle and the aspect ratio. The mass flow rate of the feed also has a strong influence. Monolith substrates with a high cell density showed faster light-off for a model reaction. A dual zone monolith consisting of a high cell density core and a low cell density outer annulus showed worse performance in the light-off compared to all other configurations tested. The overall execution time required for a two dimensional simulation required anything from under a minute for a steady state cold flow test, to 2 h for a transient light-off with reaction.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (197 K)Download as PowerPoint slideHighlights► CFD modelling of catalytic converters. ► Parameter study to quantify flow mal-distribution. ► Effect of substrate structure on light-off.

Keywords
Monolith; CFD; Simulation; Light-off
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CFD modelling of the automotive catalytic converter
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 188, Issue 1, 1 July 2012, Pages 94–105
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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