This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Three - Zone Model of Combustion and Chemical Non-Equilibrium Ionization in the SI Engine
Technical Paper
2004-01-0622
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
During last four years the authors were involved in the simulation and investigation of combustion and ionization in the cylinder of gasoline and natural gas Spark Ignition (SI) engine. Two-zone model of combustion and chemical non-equilibrium ionization and results of the numerous numerical investigation were presented by the authors at SAE 2002 and SAE 2003 World Congresses. This model and numerical results provided an important insight into combustion products behavior and gave the chance to find correlation between chemical and thermal ionization of combustion products and SI engine performances.
In order to provide better correspondence of the numerical data to the experimental results in the wide range of operational parameters for different geometry of engines a new three-zone model was developed and successfully tested. In comparison with previous one new model includes the additional third zone, which simulates the processes in the small volume of flame kernel inside the gap between spark plug electrodes.
Following processes in the flame kernel are taken into account:
- detailed mechanism of chemical interaction including chemical and thermal ionization;
- heat exchange between combustion products and electrodes;
- mass exchange between third zone and combustion products in the cylinder.
The comparison of numerical and experimental results showed more accurate correlation between measured and calculated values of pressure and ion current. The concentration of electrons in the gap between spark plug electrodes corresponds better to the experimental data for gasoline engines in comparison with two-zone model. Three-zone model became a new generation among the models for the investigation of in-cylinder combustion products ionization and simulation of operational and ecological performances of SI engine.
Recommended Content
Citation
Naoumov, V., Demin, A., and Sokolov, A., "Three - Zone Model of Combustion and Chemical Non-Equilibrium Ionization in the SI Engine," SAE Technical Paper 2004-01-0622, 2004, https://doi.org/10.4271/2004-01-0622.Also In
References
- Naoumov V. Demin A. Anderson I. Sokolov A. Modeling of combustion and Non-equilibrium ionization in Spark Ignition Engines SAE Paper # 2002-01-0009 Detroit, Michigan, USA 4-7 March 2002 11
- Naoumov V. Demin A. Sokolov A. Numerical Study and Analysis of Pollutant Production and Emission Control Using Ion Current Prediction in the SI Engine SAE Paper # 2003-01-0724 Detroit, Michigan, USA 3-6 March 2003 11
- Einewall P. Tunestal Per Johansson Bengt The Potattial of Usingthe Ion-Signal for Optimizing Engine Stability - Comparisons of Lean and EGR (Stoichiometric) Operation SAE Paper # 2003-01-0717 Detroit, Michigan, USA 3-6 March 2003 11
- Reinmann Raymond Saitzkoff Andre Mauss Fabian Glavmo Magnus Local Air-Fuel Ratio Measurements Using the Spark Plug as an Ionization Sensor SAE 970856 1997
- Reinman Raymond Linna Jan-Roger Malberg Henrik Bulk Gas Composition and Fuel Influence on Ion Current Signals Measured in an SI Engine
- Saitzkoff Anndre Reinmann Raymond Berglind Thomas An Ionization Equilibrium Analysis of the Spark Plug as an Ionization Sensor SAE 960337 1996
- Saitzkoff Andre Reinmann Raymond Mauss Fabian In- Cylinder Pressure Measurements Using the Spark Plug as an Ionization Sensor SAE 1997
- Hajireza Shahrokh Sunden Bengt Mauss Fabian A Three-Zone Model for Investigation of Gas Behaviour in the Combustion Chamber of SI Engines in Relation to Knock SAE 1999-01-0219
- Thele M. Selle S. Riedel U. Warnatz J. A Detailed Two- Dimensional Numerical Study of Spark Ignition Including Ionization SAE 2002-01-1110
- Naoumov V.I. Kriukov V.G. Abdullin A.L. Demin A.V. Trinos T.V. Combustion and Flow in Propulsion and Power Generation Systems» Yanus Moscow 1997
- Frank Axel Characterization of an Electrical Sesor for Combustion Diagnostics Lund Institute of Technology 2002
- Kravchik T. Sher E. Heywood J.B. From Spark Ignition to Flame Initiation Combustion Science and Technology 1995 108 1 30