CFD (computational fluid dynamic) simulation that is based on finite volume method is used to study the light off performance of automotive catalytic converter. The flow distribution and the conversion efficiency of CO are achieved first, and the predictions are in good agreement with the experiment and finite difference method reported before. The present work investigates the effect of ceramic monolith wall thickness on the temporal variations of the radial solid temperature, mean solid temperature, axial flow temperature and CO conversion efficiencies in monolithic reactors during the light-off phase. It is found that the wall thickness can have a significant influence on the light off performance. When the monolith wall thickness is thinner, the light off performance of automotive catalytic converter is better. These studies help to understand better the performance of the catalytic converter in order to optimize the converter design.
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CFD Simulation of the Effect of Monolith Wall Thickness on the Light off Performance of a Catalytic Converter
1Jilin University, hualun18@yahoo.cn
2Jilin University, nweiwei2005@yahoo.com.cn
3Jilin University, jluzl@sina.com
4Jilin University, jlulyp@sina.com
5Jilin University, zhhe920@sina.com
6Jilin University, whan@jlu.edu.cn
Citation Information: International Journal of Chemical Reactor Engineering. Volume 8, Issue 1, Pages –, ISSN (Online) 1542-6580, DOI: 10.2202/1542-6580.2221, February 2010
Publication History:
- Published Online:
- 2010-02-19
Keywords: catalytic converter; computational fluid dynamic; finite volume method; light-off performance
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