This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Modeling Three-Way Catalyst Converters During Cold Starts And Potential Improvements
Technical Paper
2019-01-2326
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Three-way catalyst (TWC) converters are often used to purify toxic substances contained in exhaust emissions from gasoline engines. However, a large amount of CO, NOx and THC may be emitted before the TWC reaches its light-off temperature during a cold start. In this work, a numerical model was developed for studying the purification performance of a close-coupled TWC converter during the cold start period. The TWC model was built using axisuite, commercial software by Exothermia S.A. Model gas experiments were designed for calibrating the chemical reaction scheme and corresponding reaction rate parameters in the TWC model. The TWC model was able to simulate the purification performance of CO, NOx and THC under both lean and rich air-fuel equivalence ratios (λ) for different conditions. The light-off temperature and oxygen storage capacity (OSC) behavior were also successfully validated in the model. Vehicle tests were conducted on a chassis dynamometer to verify the TWC model. The simulation achieved good agreement with the experimental data during a cold start. Based on the validated model, a parametric analysis was conducted on key parameters to propose an optimized design with improved purification performance for future TWC production.
Recommended Content
Authors
Citation
Yan, X., Sone, R., Inoue, R., Kusaka, J. et al., "Modeling Three-Way Catalyst Converters During Cold Starts And Potential Improvements," SAE Technical Paper 2019-01-2326, 2019, https://doi.org/10.4271/2019-01-2326.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 | ||
Unnamed Dataset 5 |
Also In
References
- Heywood J.B. , Internal Combustion Engine Fundamentals McGraw-Hill 1988
- Johnson , T. , Vehicular Emissions in Review SAE Int. J. Engines 9 2 1258 1275 2016
- Tutuianu M. , Bonnel P. , Ciuffo B. , et al. Development of the World-Wide Harmonized Light duty Test Cycle (WLTC) and a Possible Pathway for its Introduction in the European Legislation Transportation Research Part D: Transport and Environment 2015
- International Council on Clean Transportation Real-driving Emissions Test Procedure for Exhaust Gas Pollutant Emissions of Cars and Light Commercial Vehicles in Europe 2017
- Lino G. , Christopher H.O. Introduction to Modeling and Control of Internal Combustion Engine Systems Second Springer 2010
- International Energy Agency (IEA) Mobilising Innovation to Accelerate Climate Action Energy Technology Perspectives 2015 2015
- Xu , P. , Ji , C. , Wang , S. , et al. Realizing Low NOx Emissions on a Hydrogen-Fuel Spark Ignition Engine at the Cold Start Period Through Excess Air Ratios Control International Journal of Hydrogen Energy 2018
- Gong , C. , Li , Z. , Li , D. Numerical Study of Effect of Injection and Ignition Timings on Combustion and Unregulated Emissions of DISI Methanol Engine during Cold Start Renewable Energy 2018
- Andrianov D.I. , Keynejad F. , Dingli R.J. , et al. A Cold-Start Emissions Model of an Engine and Aftertreatment System for Optimisation Studies SAE Int. 2010
- Roberta D.M. , Jan K. , On the Role of Oxygen Storage in Three-Way Catalysis Topics in Catalysis 2004
- Von R. , Lucci , F. , Dimopoulos E.,P. , Pore Scale Modeling of Cold-Start Emissions in Foam Based Catalytic Reactors Chemical Engineering Science 2015
- Joachim B. , Thomas H. , Heike T. , et al. Influence of Physical and Chemical Parameters on the Conversion Rate of a Catalytic Converter: A Numerical Simulation Study SAE Technical Paper 2000-01-0211 2000
- Exothermia S.A. 2017
- Karthik R. , Chander S. Kinetic Parameters Estimation for Three Way Catalyst Modeling Industrial & Engineering Research 50 17 9960 9979 2011
- Koop , J. , Deutschmann , O. Detailed Surface Reaction Mechanism for Pt-Catalyzed Abatement of Automotive Exhaust Gases Applied Catalysis B: Environmental 2009
- Dimitrios N. T. , Grigorios C. K. , James C. P. J. Oxygen Storage Modeling in Three-Way Catalytic Converters Industrial & Engineering Chemistry Research 2002
- Bickel J. , Odendall B. , Eigenberger G. , et al. Oxygen Storage Dominated Three-Way Catalyst Modeling for Fresh Catalysts Chemical Engineering Science 2017
- Roman , M. , Martin , V. , Christopher ,. O. , Lino , G. , et al. Is Oxygen Storage in Three Way Catalyst an Equilibrium Controlled Process Applied Catalysis B: Environmental 91 30 38 2009
- Gong , J. , Wang , D. , Li , J. , et al. An Experimental and Kinetic Modeling Study of Aging Impact on Surface and Subsurface Oxygen Storage in Three-Way Catalysts Catalysis Today 2017