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An Investigation on DME HCCI Engine about Combustion Phase Control using EGR Stratification by Numerical Analysis
Technical Paper
2012-32-0077
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This work has been investigated the potential of in-cylinder EGR stratification for reducing the pressure rise rate of DME HCCI engines, and the coupling of both thermal stratification and fuel stratification. The numerical analyses were done by using five-zone version of CHEMKIN-II kinetics rate code, and kinetic mechanics for DME. The effects of inert components were used for the presence of EGR in calculation. Three cases of EGR stratification were tested on both thermal stratification and fuel stratification at the fixed initial temperature, pressure and fueling rate at BDC. In order to explore the appropriate stratification of EGR, EGR width was employed from zero to thirty percent. Firstly, EGR homogeneity case which means EGR width zero was examined. Secondly, EGR is located densely in hotter zone for combining with thermal stratification or in richer zone for a combination with fuel stratification. Lastly, the case was judged inversely with the second case. Among the cases, the EGR stratification performed in this work was showed that the ringing can be reduced to an acceptable level by the use of a fuel stratification with proper EGR distribution to slow down the rapid burning in a compression stroke.
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Citation
Jamsran, N., Lim, O., and Iida, N., "An Investigation on DME HCCI Engine about Combustion Phase Control using EGR Stratification by Numerical Analysis," SAE Technical Paper 2012-32-0077, 2012, https://doi.org/10.4271/2012-32-0077.Also In
References
- Sjöberg, M. Dec, J. Cernansky, N. “Potential of Thermal Stratification and Combustion Retard for Reducing Pressure-Rise Rates in HCCI Engines, Based on Multi-Zone Modeling and Experiments,” SAE Technical Paper 2005-01-0113 2005 10.4271/2005-01-0113
- Nakano, H. Lim, O. Iida, N. “An Investigation of the Effect of Thermal Stratification on HCCI Combustion by using Rapid Compression Machine,” SAE Technical Paper 2007-01-1870 2007 10.4271/2007-01-1870
- Cairns, A. Blaxill, H. “The Effects of Combined Internal and External Exhaust Gas Recirculation on Gasoline Controlled Auto-Ignition,” SAE Technical Paper 2005-01-0133 2005 10.4271/2005-01-0133
- Jeong, D.W. Lim, O.T. IIDA, N. Influence of Cooled EGR rate on the High-Load limits of Fuel Stratified DME HCCI Engine by Numerical Analysis Advanced Diesel Combustion for Low Emissions and High Thermal Efficiency 2010
- Christensen, M. Johansson, B. “Supercharged Homogeneous Charge Compression Ignition (HCCI) with Exhaust Gas Recirculation and Pilot Fuel,” SAE Technical Paper 2000-01-1835 2000 10.4271/2000-01-1835
- Zhao, H. Peng, Z. Williams, J. Ladommatos, N. “Understanding the Effects of Recycled Burnt Gases on the Controlled Autoignition (CAI) Combustion in Four-Stroke Gasoline Engines,” SAE Technical Paper 2001-01-3607 2001 10.4271/2001-01-3607
- Luz, A. E. Rupley, F. Miller, J. A. CHEMKIN-II:A FORTRAN Chemical Kinetics Pacage for the Analysis of Gas-Phase Chemical Kinetics Sandia National Laboratories Report, SAND 1989 89-8009B
- Luz, A. E. Kee, R. J. Miller, J. A. SENKIN:A FORTRAN Program for Predicting Homogeneous Gas Phase Chemical Kinetics With Sensitivity Analysis Sandia National Laboratories Report, SAND 1988 87-8248
- Curran, H. J. Pitz, W. J. Westbrook, C. K. Dagaut, P. B. Boettner, J-C Cathonnet, M. A Wide Range Modeling Study of Dimethyl Ether Oxidation International Journal Chemical Kinetics 1998 30-3 229 241
- Heywood, J. B. International Combustion Engine Fundamentals McGraw-Hill Book Company New York, USA 1988
- Jung, D. Kwon, O. Lim, O. Comparison of DME HCCI operating ranges for the thermal stratification and fuel stratification based on a multi-zone model Journal of Mechanical Science and Technology 2011 25-6 1383 1890
- Eng, J. “Characterization of Pressure Waves in HCCI Combustion,” SAE Technical Paper 2002-01-2859 2002 10.4271/2002-01-2859
- Yamada, H. Sakanashi, H. Choi, N. Tezaki, A. “Simplified Oxidation Mechanism of DME Applicable for Compression Ignition,” SAE Technical Paper 2003-01-1819 2003 10.4271/2003-01-1819