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Chemical Reactivity Control of DME/Ethanol Dual Fuel Combustion
Technical Paper
2021-01-1176
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The use of renewable fuels in place of conventional hydrocarbon fuels can minimize the carbon footprint of internal combustion engines. DME has been treated as a suitable surrogate to diesel fuel because of its high reactivity and soot-less combustion characteristics. The lower energy density of DME fuel demands a higher fuel supply rate to match the engine loads compared to diesel, which was achieved through prolonged injection duration and larger nozzle holes. When used as a pilot fuel to control the combustion behavior in a dual-fuel application, the fuel energy delivery rate becomes less critical allowing the use of a standard diesel common-rail injector for DME direct injection. In this work, the combustion of DME-Ethanol dual-fuel reactivity-controlled compression ignition was experimentally investigated. Compare with diesel, the high volatility of neat DME fuel can enhance its mixing with port injected fuel even under very early fuel injection timing, which is critical for reactivity-controlled compression ignition. On the other hand, the high chemical reactivity can enhance the combustion efficiency under high ethanol ratio conditions by enhancing ignition. Both factors make DME suitable as the direct injected fuel for the dual-fuel combustion process. The impact of DME pilot injection timing and DME/ethanol ratio on combustion characteristics was investigated under various engine load conditions. The results are then compared with diesel/ethanol dual fuel combustion, to discuss the impact of chemical reactivity of direct injected fuel on dual fuel combustion process.
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Leblanc, S., Sandhu, N., Yu, X., Zheng, M. et al., "Chemical Reactivity Control of DME/Ethanol Dual Fuel Combustion," SAE Technical Paper 2021-01-1176, 2021, https://doi.org/10.4271/2021-01-1176.Data Sets - Support Documents
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References
- Dec , J.E. Advanced Compression-Ignition Engines—Understanding the In-Cylinder Processes Proceedings of the Combustion Institute 32 2 2009 2727 2742 10.1016/j.proci.2008.08.008
- Heywood , J.B. Internal Combustion Engine Fundamentals New York McGraw-Hill 1988 978-0-07-028637-5
- Zheng , M. and Kumar , R. Implementation of Multiple-Pulse Injection Strategies to Enhance the Homogeneity for Simultaneous Low-NOx and -Soot Diesel Combustion International Journal of Thermal Sciences 48 9 2009 1829 1841 10.1016/j.ijthermalsci.2009.02.009
- Asad , U. , Zheng , M. , Ting , D.S.-K. , and Tjong , J. Implementation Challenges and Solutions for Homogeneous Charge Compression Ignition Combustion in Diesel Engines J. Eng. Gas Turbines Power 137 10 2015 10.1115/1.4030091
- Asad , U. , Divekar , P. , Zheng , M. , and Tjong , J. Low Temperature Combustion Strategies for Compression Ignition Engines: Operability limits and Challenges SAE Technical Paper 2013-01-0283 2013 https://doi.org/10.4271/2013-01-0283
- Reader , G.T. , Asad , U. , and Zheng , M. Energy Efficiency Trade-Off with Phasing of HCCI Combustion International Journal of Energy Research 37 3 2013 200 210 10.1002/er.1900
- Gao , T. , Yu , S. , Li , T. , and Zheng , M. Impacts of Multiple Pilot Diesel Injections on the Premixed Combustion of Ethanol Fuel Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 232 6 2018 738 754 10.1177/0954407017706858
- Jeftic , M. 2016
- Purohit , D. , Dev , S. , Tan , Q. , Sandhu , N. et al. An Investigation on the Regeneration of Lean NOx Trap Using Ethanol and n-Butanol SAE Technical Paper 2019-01-0737 2019 https://doi.org/10.4271/2019-01-0737
- Maunula , T. NOâ‚“ Reduction with the Combinations on LNT and SCR in Diesel Applications SAE International Journal of Materials and Manufacturing 7 1 2014 195 206
- Arcoumanis , C. , Bae , C. , Crookes , R. , and Kinoshita , E. The Potential of Di-Methyl Ether (DME) as an Alternative Fuel for Compression-Ignition Engines: A Review Fuel 87 7 2008 1014 1030 10.1016/j.fuel.2007.06.007
- Park , S.H. and Lee , C.S. Applicability of Dimethyl Ether (DME) in a Compression Ignition Engine as an Alternative Fuel Energy Conversion and Management 86 2014 848 863 10.1016/j.enconman.2014.06.051
- Semelsberger , T.A. , Borup , R.L. , and Greene , H.L. Dimethyl Ether (DME) as an Alternative Fuel Journal of Power Sources 156 2 2006 497 511 10.1016/j.jpowsour.2005.05.082
- Yacoub , Y. , Bata , R. , and Gautam , M. The Performance and Emission Characteristics of C1-C5 Alcohol-Gasoline Blends with Matched Oxygen Content in a Single-Cylinder Spark Ignition Engine Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 212 5 1998 363 379 10.1243/0957650981536934
- Jayed , M.H. , Masjuki , H.H. , Kalam , M.A. , Mahlia , T.M.I. et al. Prospects of Dedicated Biodiesel Engine Vehicles in Malaysia and Indonesia Renewable and Sustainable Energy Reviews 15 1 2011 220 235 10.1016/j.rser.2010.09.002
- Yanaglsawa , N. 2004
- Asad , U. , Kumar , R. , Zheng , M. , and Tjong , J. Ethanol-Fueled Low Temperature Combustion: A Pathway to Clean and Efficient Diesel Engine Cycles Applied Energy 157 2015 838 850 10.1016/j.apenergy.2015.01.057
- Divekar , P. , Han , X. , Tan , Q. , Asad , U. et al. Mode Switching to Improve Low Load Efficiency of an Ethanol-Diesel Dual-Fuel Engine SAE Technical Paper 2017-01-0771 2017 https://doi.org/10.4271/2017-01-0771
- Tutak , W. Bioethanol E85 as a Fuel for Dual Fuel Diesel Engine Energy Conversion and Management 86 2014 39 48 10.1016/j.enconman.2014.05.016
- Yu , S. , Dev , S. , Yang , Z. , Leblanc , S. et al. Early Pilot Injection Strategies for Reactivity Control in Diesel-ethanol Dual Fuel Combustion SAE Technical Paper 2018-01-0265 2018 https://doi.org/10.4271/2018-01-0265
- Huang , Z. , Qiao , X. , Zhang , W. , Wu , J. et al. Dimethyl Ether as Alternative Fuel for CI Engine and Vehicle Front. Energy Power Eng. China 3 1 2009 99 108 10.1007/s11708-009-0013-1
- Ying , W. , Genbao , L. , Wei , Z. , and Longbao , Z. Study on the Application of DME/Diesel Blends in a Diesel Engine Fuel Processing Technology 89 12 2008 1272 1280 10.1016/j.fuproc.2008.05.023
- Park , S.H. , Shin , D. , and Park , J. Effect of Ethanol Fraction on the Combustion and Emission Characteristics of a Dimethyl Ether-Ethanol Dual-Fuel Reactivity Controlled Compression Ignition Engine Applied Energy 182 2016 243 252 10.1016/j.apenergy.2016.07.101
- Liang , X. , Zheng , Z. , Zhang , H. , Wang , Y. et al. A Review of Early Injection Strategy in Premixed Combustion Engines Applied Sciences 9 18 2019 10.3390/app9183737
- Boot , M. , Rijk , E. , Luijten , C. , Somers , B. et al. Spray Impingement in the Early Direct Injection Premixed Charge Compression Ignition Regime SAE Technical Paper 2010-01-1501 2010 https://doi.org/10.4271/2010-01-1501
- Gravel , R. , Maronde , C. , Gehrke , C. , and Fiveland , S. 2010 10.2172/1070178
- Pierpont , D. and Reitz , R. Effects of Injection Pressure and Nozzle Geometry on D.I. Diesel Emissions and Performance SAE Technical Paper 950604 1995 https://doi.org/10.4271/950604