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Study on HCCI Combustion and Emission Characteristics of Diesel Engine Fueled with Methanol/DME
Technical Paper
2010-01-0578
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Homogeneous charge compression ignition (HCCI) is considered as a clean and high effective combustion technology. Alternative fuel Dimethyl Ether(DME) has some problems in HCCI combustion mode, such as narrow stable conditions and higher unregulated emissions. In this research, a single cylinder diesel engine zs195 was applied to HCCI operation, methanol and DME were fueled to the engine by fuel injection system with an electric controlled port in dual fuel mode. Regulated DME and methanol proportions can significantly expand the stable HCCI operation and obtained over a broad speed and load region.
The emission tests indicated that NOx and smoke emissions were overall very low under normal HCCI operation, while HC and CO emissions were much higher than conventional CI-engines. HC and CO emissions increased with methanol content but reduced with output power. Gas Chromatography(GC) method was used to investigate the characteristics of unregulated emissions(Including formaldehyde, acetaldehyde, methanol and methyl formate) from the tested engine. The results showed that DME/methanol fueled engine had a higher formaldehyde emissions than fueled with diesel fuel. In contrast with formaldehyde, acetaldehyde emissions decreased with the increasing load, methyl formate had irregular change in the study.The residual unburned methanol can achieve approximately 1000-1500 ppm. All the unregulated emissions increased with the quantity of methanol.
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Authors
Citation
Yan, Y., Yu-Sheng, Z., Yong-Tian, C., Zu-Di, C. et al., "Study on HCCI Combustion and Emission Characteristics of Diesel Engine Fueled with Methanol/DME," SAE Technical Paper 2010-01-0578, 2010, https://doi.org/10.4271/2010-01-0578.Also In
References
- Shudo, T. Ono, Y. “HCCI Combustion of Hydrogen, Carbon Monoxide and Dimethyl Ether,” SAE Technical Paper 2002-01-0112 2002
- Green, C. Cockshutt N. King, L. “Dimethyl Ether as a Methanol Ignition Improver- Substitution Requirements and Exhaust Emissions Impact,” SAE Technical Paper 902155 1990
- Murayama, T. Chikahisa, T. Guo, J. Miyano, M. “A Study of a Compression Ignition Methanol Engine with Converted Dimethyl Ether as an Ignition Improver,” SAE Technical Paper 922212 1992
- Hiroyuki, Y Masataka, Y Atsumu, T Chemical mechanistic analysis of additive effects in homogeneous charge compression ignition of dimethyl ether Proceedings of the Combustion Institute, Thirtieth International Symposium on Combustion 2005 30 2 2773 2780
- Yamada, Hiroyuki Tono, Manabu Tezaki, Atsumu Validation of retarding mechanism in ignition timing of HCCI engine by adding methanol to DME Transactions of the Japan Society of Mechanical Engineers Part B, (Japan) 2004 16 9 2455 2461
- Ogawa, H. Miyamoto, N. Kaneko, N. Ando, H. “Combustion Control and Operating Range Expansion with Direct Injection of Reaction Suppressors in a Premixed DME HCCI Engine,” SAE Technical Paper 2003-01-0746 2003
- Shudo, T. Takahashi, T. “Influence of Reformed Gas Composition on HCCI Combustion of Onboard Methanol-reformed Gases,” SAE Technical Paper 2004-01-1908 2004
- Shudo, T. Ono, Y. Takahashi, T. “Ignition Control by DME-reformed Gas in HCCI Combustion of DME,” SAE Technical Paper 2003-01-1824 2003
- Zheng Chen Experimental study on HCCI engine with DME/methanol dual fuel Guangxi University 2004
- Yao Mingfa Chen Zheng Zheng Zunqing et al. Study on the controlling strategies of homogeneous charge compression ignition combustion with fuel of dimethyl ether and methanol Fuel 2006 85 14-15 2046 2056
- Yao Mingfa Huang Chen Zheng Zhaolei Multidimensional numerical simulation on dimethyl ether/methanol dual-fuel homogeneous charge compression ignition (HCCI) engine combustion and emission processes Energy& Fuels 2007 21 812 821
- Liang Xia Yao Mingfa Zheng Zunqing et al. Numerical study on the mechanism of low temperature reaction of DME/methanol HCCI combustion Journal of Combustion Science and Technology 2005 11 2 151 154
- Chan S H Zhu J Divergence analysis of an emissions-based air-fuel ratio model and exhaust oxygen estimation Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 1997 21 2 137 144
- Sun Hai-ying Experimental and numerical study on unregulated emissions from DME engines Huazhong University of Science and Technology 2007
- Wu Dong-dong Exhaust measuring and formation mechanism study of benzene and its analogies from the diesel engine Huazhong University of Science and Technology 2008
- Liu Yong-chang Principle of internal-combustion engine Publishing House of Huazhong University of Science and Technology 2000 1
- Rao Si-ping Study on performance and emission characteristics of diesel engines using ethanol blended diesel fuels Huazhong University of Science and Technology 2008
- Lang Jing Zhang Yu-sheng Investigations of DME combustion and tiny pollutant formation mechanism Chinese Internal Combustion Engine Engineering