This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Experimental Investigation of Combustion and Emission Characteristics of the Direct Injection Dimethyl Ether Enabled Micro-Flame Ignited (MFI) Hybrid Combustion in a 4-Stroke Gasoline Engine
Technical Paper
2018-01-1247
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Controlled Auto-Ignition (CAI), also known as Homogeneous Charge Compression Ignition (HCCI), has the potential to improve gasoline engines’ efficiency and simultaneously achieve ultra-low NOx emissions. Two of the primary obstacles for applying CAI combustion are the control of combustion phasing and the maximum heat release rate. To solve these problems, dimethyl ether (DME) was directly injected into the cylinder to generate multi-point micro-flame through compression in order to manage the entire heat release of gasoline in the cylinder through port fuel injection, which is known as micro-flame ignited (MFI) hybrid combustion. The combustion and emissions characteristics of MFI mode were investigated in a single-cylinder 4-stroke gasoline engine by the use of negative valve overlap (NVO) strategy at part loads when direct injection timing of DME was altered from -60 °CA to -40 °CA after top dead center, and the replacement ratio of DME for gasoline was no more than 20% at a fixed total energy per cycle. The results show that earlier start of the main combustion process with increased DME ratio occurs, while its trend becomes weak at late DME direct injection timing. Combustion duration shortens with increased DME ratio, but it is elongated with delayed DME injection timing. Increased DME ratio reduces HC and CO emissions, but increases NOx emissions. The influence of DME ratio on emissions characteristics becomes minimal at late DME direct injection timing.
Authors
Topic
Citation
Fu, X., He, B., Xu, S., Li, H. et al., "Experimental Investigation of Combustion and Emission Characteristics of the Direct Injection Dimethyl Ether Enabled Micro-Flame Ignited (MFI) Hybrid Combustion in a 4-Stroke Gasoline Engine," SAE Technical Paper 2018-01-1247, 2018, https://doi.org/10.4271/2018-01-1247.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 |
Also In
References
- Heywood J.B. Internal Combustion Engine Fundamentals New York McGraw-Hill, Inc 1988 0-07-028637-X
- Mock P. EU CO2 Standards for Passenger Cars and Light-Commercial Vehicles 2014
- Mike B. 2013
- Alkidas , A.C. Combustion Advancements in Gasoline Engines Energy Convers. Manag 48 11 2751 2761 10.1016/j.enconman.2007.07.027
- Alagumalai , A. Internal Combustion Engines: Progress and Prospects Renew. Sustain. Energy Rev. 38 561 571 2014 10.1016/j.rser.2014.06.014
- Zhao H. HCCI and CAI Engines for the Automotive Industry Cambridge England Woodhead Publishing Limited 2007 978-1-84569-128-8
- Lu , X. , Han , D. , and Huang , Z. Fuel Design and Management for the Control of Advanced Compression-Ignition Combustion Modes Prog. Energy Combust. Sci. 37 6 741 783 2011 10.1016/j.pecs.2011.03.003
- Onishi , S. , Jo , S. , Shoda , K. , Jo , P. et al. Active Thermo-Atmosphere Combustion (ATAC) - A New Combustion Process for Internal Combustion Engines SAE Technical Paper 790501 1979 10.4271/790501
- Noguchi , M. , Tanaka , Y. , Tanaka , T. , and Takeuchi , Y. A Study on Gasoline Engine Combustion by Observation of Intermediate Reactive Products during Combustion SAE Technical Paper 790840 1979 10.4271/790840
- Chen , Y. , Wolk , B. , Mehl , M. , Cheng , W.K. et al. Development of a Reduced Chemical Mechanism Targeted for a 5-component Gasoline Surrogate: A Case Study on the Heat Release Nature in a GCI Engine Combust. Flame 178 268 276 10.1016/j.combustflame.2016.12.018
- Najt , P. and Foster , D. Compression-Ignited Homogeneous Charge Combustion SAE Technical Paper 830264 1983 10.4271/830264
- Hyvönen , J. , Haraldsson , G. , and Johansson , B. Operating Range in a Multi Cylinder HCCI Engine Using Variable Compression Ratio SAE Technical Paper 2003-01-1829 2003 10.4271/2003-01-1829
- Xie , H. , Yang , L. , Qin , J. , Gao , R. et al. The Effect of Spark Ignition on the CAI Combustion Operation SAE Technical Paper 2005-01-3738 2005 10.4271/2005-01-3738
- Law , D. , Kemp , D. , Allen , J. , Kirkpatrick , G. et al. Controlled Combustion in an IC-Engine with a Fully Variable Valve Train SAE Technical Paper 2001-01-0251 2001 10.4271/2001-01-0251
- Weinrotter , M. , Wintner , E. , Iskra , K. , Neger , T. et al. Optical Diagnostics of Laser-Induced and Spark Plug-Assisted HCCI Combustion SAE Technical Paper 2005-01-0129 2005 10.4271/2005-01-0129
- Persson , H. , Hultqvist , A. , Johansson , B. , and Remón , A. Investigation of the Early Flame Development in Spark Assisted HCCI Combustion Using High Speed Chemiluminescence Imaging SAE Technical Paper 2007-01-0212 2007 10.4271/2007-01-0212
- Reuss , D.L. , Kuo , T.-W. , Silvas , G. , Natarajan , V. , and Sick , V. Experimental Metrics for Identifying Origins of Combustion Variability During Spark-Assisted Compression Ignition Int. J. Engine Res. 9 5 409 434 2008 10.1243/14680874JER01108
- Wang , X. , Zhao , H. , Xie , H. , and He , B. Numerical Study of the Effect of Piston Shapes and Fuel Injection Strategies on In-Cylinder Conditions in a PFI/GDI Gasoline Engine SAE Int. J. Engines 7 4 1888 1899 2014 10.4271/2014-01-2670
- Wang , X. , Zhao , H. , and Xie , H. Effect of Piston Shapes and Fuel Injection Strategies on Stoichiometric Stratified Flame Ignition (SFI) Hybrid Combustion in a PFI/DI Gasoline Engine by Numerical Simulations Energy Convers. Manag. 98 387 400 2015 10.1016/j.enconman.2015.03.063
- Yoshizawa , K. , Teraji , A. , Miyakubo , H. , Yamaguchi , K. , and Urushihara , T. Study of High Load Operation Limit Expansion for Gasoline Compression Ignition Engines J. Eng. Gas Turbines Power 3 17 2003 10.1115/ICES2003-0543
- Urushihara , T. , Yamaguchi , K. , Yoshizawa , K. , and Itoh , T. A Study of a Gasoline-fueled Compression Ignition Engine ∼ Expansion of HCCI Operation Range Using SI Combustion as a Trigger of Compression Ignition ∼ SAE Technical Paper 2005-01-0180 2005 10.4271/2005-01-0180
- Persson , H. , Johansson , B. , and Remón , A. The Effect of Swirl on Spark Assisted Compression Ignition (SACI) SAE Technical Paper 2007-01-1856 2007 10.4271/2007-01-1856
- Wang , Z. , He , X. , Wang , J.-X. , Shuai , S. et al. Combustion Visualization and Experimental Study on Spark Induced Compression Ignition (SICI) in Gasoline HCCI Engines Energy Convers. Manag. 51 5 908 917 2010 10.1016/j.enconman.2009.11.029
- Berntsson , A. and Denbratt , I. HCCI Combustion Using Charge Stratification for Combustion Control SAE Technical Paper 2007-01-0210 2007 10.4271/2007-01-0210
- Daly , C.A. , Simmie , J.M. , Würmel , J. , DjebaÏli , N. , and Paillard , C. Burning Velocities of Dimethyl Ether and Air Combust. Flame. 125 4 1329 1340 2001 10.1016/S0010-2180(01)00249-8
- Xie , H. , Xu , K. , Chen , T. , and Zhao , H. Investigations Into the Influence of Dimethyl Ether Micro Flame Ignition on the Combustion and Cyclic Variation Characteristics of Flame Propagation/Auto-ignition Hybrid Combustion in an Optical Engine Combust. Sci. Technol. 189 3 453 477 2017 10.1080/00102202.2016.1223060
- Zhang H.F. 2011
- Zhang , H.F. , Seo , K. , and Zhao , H. Combustion and Emission Analysis of the Direct DME Injection Enabled and Controlled Auto-ignition Gasoline Combustion Engine Operation Fuel 107 800 814 10.1016/j.fuel.2013.01.067
- Seo , K. and Zhao , H. Experimental Investigation on DME Assisted Gasoline CAI/HCCI Combustion with Intake Re-Breathing Valve Strategy SAE Technical Paper 2015-01-1818 2015 10.4271/2015-01-1818
- Li , J. , Zhao , H. , Ladommatos , N. , and Ma , T. Research and Development of Controlled Auto-Ignition (CAI) Combustion in a 4-Stroke Multi-Cylinder Gasoline Engine SAE Technical Paper 2001-01-3608 2001 10.4271/2001-01-3608
- He , B.-Q. , Yuan , J. , Liu , M.-B. , and Zhao , H. Combustion and Emission Characteristics of a n-butanol HCCI Engine Fuel 115 758 764 2014 10.1016/j.fuel.2013.07.089
- Fu , X.-Q. , He , B.-Q. , Li , H.-T. , Chen , T. et al. Effect of Direct Injection Dimethyl Ether on the Micro-flame Ignited (MFI) Hybrid Combustion and Emission Characteristics of a 4-stroke Gasoline Engine Fuel Process. Technol. 167 555 562 2017 10.1016/j.fuproc.2017.08.001
- Park , S.H. and Lee , C.S. Applicability of Dimethyl Ether (DME) in a Compression Ignition Engine as an Alternative Fuel Energy Convers. Manag. 86 848 863 2014 10.1016/j.enconman.2014.06.051
- 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 1014 1030 2008 10.1016/j.fuel.2007.06.007
- Ikemoto , M. , Kojima , Y. , and Iida , N. Development of the Control System Using EGR for the HCCI Engine Running on DME SAE Technical Paper 2005-32-006 2005
- Edgar , B. , Dibble , R. , and Naegeli , D. Autoignition of Dimethyl Ether and Dimethoxy Methane Sprays at High Pressures SAE Technical Paper 971677 1997 10.4271/971677
- Curran , H.J. , Pitz , W.J. , Westbrook , C.K. , Dagaut , P. et al. A Wide Range Modeling Study of Dimethyl Ether Oxidation Int. J. Chem. Kinet. 30 229 241 1998
- Lee , S. , Oh , S. , Choi , Y. , and Kang , K. Performance and Emission Characteristics of a CI Engine Operated with n-Butane Blended DME Fuel Appl. Therm. Eng. 31 11-12 1929 1935 2011 10.1016/j.applthermaleng.2011.02.039
- Zhang , Y. , Zhao , H. , Ojapah , M. , and Cairns , A. CAI Combustion of Gasoline and Its Mixture with Ethanol in a 2-stroke Poppet Valve DI Gasoline Engine Fuel 109 661 668 2013 10.1016/j.fuel.2013.03.002
- Kim , D.S. , Kim , M.Y. , and Lee , C.S. Combustion and Emission Characteristics of Partial Homogeneous Charge Compression Ignition Engine Combust. Sci. Technol. 177 1 107 125 2004 10.1080/00102200590883778
- Kim , M.Y. , Kim , J.W. , Lee , C.S. , and Lee , J.H. Effect of Compression Ratio and Spray Injection Angle on HCCI Combustion in a Small DI Diesel engine Energy & Fuels. 20 1 69 76 2006 10.1021/ef0501694
- Kokjohn , S.L. , Hanson , R.M. , Splitter , D.A. , and Reitz , R.D. Fuel Reactivity Controlled Compression Ignition (RCCI): A Pathway to Controlled High-Efficiency Clean Combustion Int. J. Engine Res. 12 3 209 226 2011 10.1177/1468087411401548