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CAI Combustion with Methanol and Ethanol in an Air-Assisted Direct Injection SI Engine
Technical Paper
2008-01-1673
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
CAI combustion has the potential to be the most clean combustion technology in internal combustion engines and is being intensively researched. Following the previous research on CAI combustion of gasoline fuel, systematic investigation is being carried out on the application of bio-fuels in CAI combustion. As part of an on-going research project, CAI combustion of methanol and ethanol was studied on a single-cylinder direct gasoline engine with an air-assisted injector. The CAI combustion was achieved by trapping part of burnt gas within the cylinder through using short-duration camshafts and early closure of the exhaust valves. During the experiment the engine speed was varied from 1200rpm to 2100rpm and the air/fuel ratio was altered from the stoichiometry to the misfire limit. Their combustion characteristics were obtained by analysing cylinder pressure trace. The experimental results show that both oxygenate fuels, methanol and ethanol, can lead to CAI combustion as well as gasoline fuel. The load of CAI combustion was increased and emissions were lower with the two oxygenate fuels. Methanol was found to have highest output and lowest energy consumption among the three fuels tested. CAI combustion characteristics of the oxygenate fuels were more affected by the amount of burnt residuals trapped than that of gasoline fuel.
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Li, Y., Zhao, H., and Brouzos, N., "CAI Combustion with Methanol and Ethanol in an Air-Assisted Direct Injection SI Engine," SAE Technical Paper 2008-01-1673, 2008, https://doi.org/10.4271/2008-01-1673.Also In
References
- Dec John E. Sjöberg Magnus Aparametric Study of HCCI Combustion - the Sources of Emissions at Low Loads and the Effects of GDI Fuel Injection SAE paper 2003-01-0752
- Tsurushima T. Shimazaki N. Asaumi Y. Gas Sampling Analysis of Combustion Process in a Homogeneous Charge Compression Ignition Engine International Engine Research 1 4 2000
- Christensen M. Hultqvist A. Johansson B. Demonstrating the Multi Fuel Capability of a Homogeneous Charge Compression Ignition Engine with Variable Compression Ratio SAE paper 1999-01-3679
- Ryan T.W. III Challahan T.J. Mehta D. HCCI in a Variable Compression Ratio Engine - Effects of Engine Variables SAE paper 2004-01-1971
- Li J. Zhao H. Ladommatos N. Research and Development of Controlled Auto-Ignition (CAI) Combustion in a 4-Stroke Multi-Cylinder Gasoline Engine SAE paper 2001-01-3608 2001
- Caton P.A. Simon A.J. Gerdes J.C. Edwards C.F. Residual-Effected Homogeneous Charge Compression Ignition at a Low Compression Ratio Using Exhaust Reinduction Internationl Journal of Engine Research 4 3 163 177 2003
- Fuerhapter A. Piock W.F. Fraidl G.K. CSI - Controlled Auto Ignition - the Best solution for the Fuel Consumption - Versus Emission Trade-Off? SAE paper 2003-01-0754
- Chen R. Milovanovic N. Turner J. Blundell D. The Thermal Effect of Internal Exhaust Gas Recirculation on Controlled Auto Ignition SAE paper 2003-01-0751
- Urushihara T. Hiraya K. Kakuhou A. Itoh T. Expansion of HCCI Operating Region by the Combination of Direct Injection, Negative Valve Overlap and Internal Fuel Reformation SAE paper 2003-01-0749
- Urata Y. Awasaka M. Takanashi J. Kakinuma T. Hakozaki T. Umemoto A. A Study of Gasoline Fuelled HCCI Engine Equipped with an Electromagnetic Valve Train SAE paper 2004-01-1898
- Osborne R.J. Li G. Sapsford S.M. Stokes J. Lake T.H. Heikal M.R. Evaluation of HCCI for Future Gasoline Powertrains SAE paper 2003-01-0750
- Standing R. H. Kalian N. Ma T. Zhao H. Wirth M. Schamel A. R. Effects of Injection Timing and Valve Timing on CAI Operation in a Multi-Cylinder DI Gasoline Engine SAE paper 2005-01-0132 2005
- Li Yufeng Zhao Hua Brouzos Nikolaos Ma Tom leach Ben Effect of Injection Timing on Mixture and CAI Combustion in a GDI Engine with an Air-Assisted Injector SAE paper 2006-01-0206
- Oaklay Aaron Zhao Hua ladommatos Nicos Ma Tom Dilution Effects on the Controlled Auto-Ignition (CAI) Combustion of Hydrocarbon and Alcohol Fuels SAE paper 2001-01-3606
- Xie Hui Wei Zhipeng He Bangquan Zhao Hua Comparison of HCCI Combustion Respectively Fuelled with Gasoline, Ethanol and Methanol Through The Trapped Residual Gas Strategy SAE paper 2006-01-0635
- Cathcart G. Zavier C. Fundamental Characteristics of an Air-Assisted Direct Injection
- Combustion System as Applied to a 4 Stroke Automotive Gasoline Engines SAE paper 2000-01-0256
- Li Yufeng Zhao Hua Brouzos Nikolaos Ma Tom Parametric Study on CAO Combustion in a GDI Engine with an Air-Assisted Injector SAE paper 2007-01-0196
- Li Y. Zhao H. Brouzos N. Leach B. Managing Controlled Auto-Ignition Combustion by Injection on a Direct Injection Gasoline Engine, Proc IMechE 221 Part D: Journal of Automobile Engineering 1125 1136 2007