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Impact of the Inlet Flow Distribution on the Light-Off Behavior of a 3-Way Catalytic Converter
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 03, 2003 by SAE International in United States
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Numerical simulations are increasingly assisting research and development in the field of emission control of automotive vehicles.
Our work focuses on the prediction of the tail-pipe emissions, based on a numerical simulation of the automotive catalytic converter. Besides the prediction of the tail-pipe emissions, an understanding of the processes occurring inside a monolithic catalytic converter implies new opportunities for the design of the optimum exhaust gas system.
In this paper, we present a three-dimensional transient numerical study of the influence of the velocity distribution in front of the inlet face on the thermal behavior of the monolith during the light-off of a 3-way catalytic converter. The differences in the thermal and chemical behavior due to the shape of the velocity distribution are discussed.
The recently developed code DETCHEMMONOLITH /1/ is used for the numerical simulation. This code, for the first time, combines two-dimensional simulations of the reactive flow inside a large number of single monolith channels including a heterogeneous multi-step reaction mechanism with a transient simulation of the three-dimensional temperature field of the entire converter.
|Progress In Technology||Green Technologies and the Mobility Industry|
|Technical Paper||Implementing System Simulation to Drive a more Efficient Controls Development Process|
|Technical Paper||Objective Evaluation of Vehicle Driveability|
CitationWindmann, J., Braun, J., Zacke, P., Tischer, S. et al., "Impact of the Inlet Flow Distribution on the Light-Off Behavior of a 3-Way Catalytic Converter," SAE Technical Paper 2003-01-0937, 2003, https://doi.org/10.4271/2003-01-0937.
Data Sets - Support Documents
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SAE 2003 Transactions Journal of Fuels and Lubricants
Number: V112-4; Published: 2004-09-15
Number: V112-4; Published: 2004-09-15
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