This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Simulation of Ammonia SCR-Catalytic Converters: Model Development, Calibration and Application
Technical Paper
2010-01-1947
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
An efficient aftertreatment technique is driven by the need to maintain strict emission norms for heavy-duty and medium-duty ground vehicles. The design of the SCR system involves catalyst selection, complex controller development like urea dosing strategy and the interaction between engine setup and aftertreatment system. It is quite difficult and costly in reality to test the performance of such a complex process. For this purpose, the SCR model must be computationally efficient to allow full drive cycle analysis and application to real-time simulation and testing. The present work is a simplified zero-dimensional physics-based dynamic SCR model developed for real-time applications. The holdup of reacting species on the catalytic surface is assumed to be negligible and hence termed as a pseudo 2-phase model. The chemical kinetics is coupled with the thermal behavior to form a complete SCR model. A reaction scheme is proposed based on the test data obtained. For determination of the intrinsic kinetics of various NH₃-NOx reactions, the laboratory catalyst rig test data is used. Steady engine test data is applied for validation purposes. The Japanese transient cycle confirms the use of this model for real-time simulation. This model with the proposed kinetics is able to simulate faster than real time with acceptable level of accuracy.
Recommended Content
Authors
Topic
Citation
Cornelio, A., Shukla, A., Kouketsu, S., Nakayama, S. et al., "Simulation of Ammonia SCR-Catalytic Converters: Model Development, Calibration and Application," SAE Technical Paper 2010-01-1947, 2010, https://doi.org/10.4271/2010-01-1947.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 |
Also In
References
- Fischer, S Hofmann, L Zürbig, J ‘SCR - A Technology for Global Emissions Control of Diesel Engines’ SAE Technical Paper 2004-05-0390 2004
- Chatterjee, D. Burkhardt, T. Bandl-Konrad, B. Braun, T. et al. “Numerical Simulation of Ammonia SCR-Catalytic Converters: Model Development and Application,” SAE Technical Paper 2005-01-0965 2005 10.4271/2005-01-0965
- Chatterjee, D. Burkhardt, T. Weibel, M. Nova, I. et al. “Numerical Simulation of Zeolite- and V-Based SCR Catalytic Converters,” SAE Technical Paper 2007-01-1136 2007 10.4271/2007-01-1136
- McKinley, T.L. Alleyne, A.G. “A Urea Decomposition Modeling Framework for SCR Systems,” SAE Int. J. Fuels Lubr. 2 1 612 626 2009 10.4271/2009-01-1269
- Tang, W. Wahiduzzaman, S. Wenzel, S. Leonard, A. et al. “Development of a Quasi-Steady Approach Based Simulation Tool for System Level Exhaust Aftertreatment Modeling,” SAE Technical Paper 2008-01-0866 2008 10.4271/2008-01-0866
- Kim, J.Y. Cavataio, G. Patterson, J.E. Laing, P.M. et al. “Laboratory Studies and Mathematical Modeling of Urea SCR Catalyst Performance,” SAE Technical Paper 2007-01-1573 2007 10.4271/2007-01-1573
- Birkhold, F Meingast, U Wassermann, P Deutschmann, O ‘Modeling and simulation of the injection of urea-water-solution for automotive SCR DeNOx-systems’ Applied Catalysis B: Environmental 70 2007 119 127
- Ciardelli, C Nova, I Tronconi, E Konrad, B Chatterjee, D Ecke, K Weibel, M ‘SCR-DeNOx for diesel engine exhaust aftertreatment: unsteady-state kinetic study and monolith reactor modelling’ Chemical Engineering Science 59 2004 5301 5309
- Hosoya, M. Kawada, Y. Sato, S. Shimoda, M. “The Study of NOx and PM Reduction Using Urea Selective Catalytic Reduction System for Heavy Duty Diesel Engine,” SAE Technical Paper 2007-01-1576 2007 10.4271/2007-01-1576
- Tronconi, E Nova, Isabella Ciardelli, Cristian Chatterjee, Daniel Bandl-Konrad, Brigitte Burkhardt, Thomas ‘Modelling of an SCR catalytic converter for diesel exhaust after treatment: Dynamic effects at low temperature’ Catalysis Today 105 2005 529 536
- Chen, M. Williams, S. “Modelling and Optimization of SCR-Exhaust Aftertreatment Systems,” SAE Technical Paper 2005-01-0969 2005 10.4271/2005-01-0969
- Willi, R ‘Low-Temperature Selective Catalytic Reduction of NOx - Catalytic Behaviour and Kinetic Modeling’ Diss. ETH No. 11856 Swiss Federal Institute of Technology ETH Zurich 1996
- Hirata, K Masaki, N Yano, M Akagawa, H Takada, K Kusaka, J Mori, T ‘Development of an improved urea-selective catalytic reduction-diesel particulate filter system for heavy-duty commercial vehicles’ International Journal of Engine Research 10 2009 10.1243/14680874JER03709
- Yang, H. Tsourapas, V. Prakash, A.K. Yuan, Q. et al. “Hardware-In-the-Loop (HIL) Modeling and Simulation for Diesel Aftertreatment Controls Development,” SAE Technical Paper 2009-01-2928 2009 10.4271/2009-01-2928
- Kluge, T. Allen, J. Dhaliwal, A. “Advantages and Challenges of Closed-Loop HIL Testing for Commercial and Off-Highway Vehicles,” SAE Technical Paper 2009-01-2841 2009 10.4271/2009-01-2841
- Devarakonda, M. Parker, G. Johnson, J.H. Strots, V. et al. “Model-Based Estimation and Control System Development in a Urea-SCR Aftertreatment System,” SAE Int. J. Fuels Lubr. 1 1 646 661 2008 10.4271/2008-01-1324
- Devarakonda, M. Parker, G. Johnson, J.H. Strots, V. et al. “Adequacy of Reduced Order Models for Model-Based Control in a Urea-SCR Aftertreatment System,” SAE Technical Paper 2008-01-0617 2008 10.4271/2008-01-0617
- Upadhyay, D Nieuwstadt, M V ‘Model Based Analysis and Control Design of a Urea-SCR deNOx Aftertreatment System’ ASME Journal of Dynamic Systems, Measurement and Control 128 3 September 2006