Modelling of the Selective Catalytic NOx Reduction for Diesel Engine

Hang Xu; Fang Yin Tu; Zhi Xia He; Jun Ma; Qian Wang

doi:10.4028/www.scientific.net/AMM.71-78.2098

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 71-78Modelling of the Selective Catalytic NOx Reduction...

Modelling of the Selective Catalytic NOx Reduction for Diesel Engine

Abstract:

As Future emission limits of diesel engines is more stringent, model-based control strategy of selective catalytic reduction (SCR) is becoming necessary. Therefore, a catalytic converter mathematical model for simulating selective catalytic deNOx reaction is very important. In this paper, a one dimension catalytic converter mathematical model that consists of thermal energy model, SCR reaction model and NH₃ storage model for simulating urea-SCR reaction process is presented. Based on this model, the impact of temperature and gas hourly space velocity (GHSV) on NOx conversion efficiency has been researched. According to the results of simulation, it shows good agreement with experimental data.

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Periodical:

Applied Mechanics and Materials (Volumes 71-78)

Pages:

2098-2102

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.71-78.2098

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Online since:

July 2011

Authors:

Hang Xu, Fang Yin Tu, Zhi Xia He, Jun Ma, Qian Wang

Keywords:

Chemical Reaction, Exhaust Gas, Mathematical Models, Selective Catalytic Reduction (SCR)

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References

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