This paper presents a computational investigation of the effect of exhaust temperature modulations on an automotive catalytic converter. The objective is to develop a better fundamental understanding of the converter’s performance under transient driving conditions. Such an understanding will be beneficial in devising improved emission control methodologies. The study employs a single-channel based, one-dimensional, nonadiabatic model. The transient conditions are imposed by varying the exhaust gas temperature sinusoidally. The results show that temperature modulations cause a significant departure in the catalyst behavior from its steady behavior, and modulations have both favorable and harmful effects on pollutant conversion. The operating conditions and the modulating gas composition and flow rates (space velocity) have substantial influence on catalyst behavior.
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January 2008
Research Papers
The Effect of Engine Exhaust Temperature Modulations on the Performance of Automotive Catalytic Converters
Tariq Shamim
Tariq Shamim
Department of Mechanical Engineering,
The University of Michigan–Dearborn
, Dearborn, MI 48128-2406
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Tariq Shamim
Department of Mechanical Engineering,
The University of Michigan–Dearborn
, Dearborn, MI 48128-2406J. Eng. Gas Turbines Power. Jan 2008, 130(1): 012801 (9 pages)
Published Online: December 13, 2007
Article history
Received:
March 28, 2006
Revised:
January 16, 2007
Published:
December 13, 2007
Citation
Shamim, T. (December 13, 2007). "The Effect of Engine Exhaust Temperature Modulations on the Performance of Automotive Catalytic Converters." ASME. J. Eng. Gas Turbines Power. January 2008; 130(1): 012801. https://doi.org/10.1115/1.2747256
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