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Effect of Thermodynamic Conditions on Spark Ignition to Compression Ignition in Ultra-Lean Mixture Using Rapid Compression Machine
Technical Paper
2019-01-0963
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Compression ratio and specific heat ratio are two dominant factors influencing engine thermal efficiency. Therefore, ultra-lean burn may be one method to deal with increasingly stringent fuel consumption and emission regulations in the approaching future. To achieve high efficiency and clean combustion, innovative combustion modes have been applied on research engines including homogeneous charge compression ignition (HCCI), spark-assisted compression ignition (SACI), and gasoline direct-injection compression ignition (GDCI), etc. Compared to HCCI, SACI can extend the load range and more easily control combustion phase while it is constrained by the limit of flame propagation. For SACI with ultra-lean burn in engines, equivalence ratio (φ), rich-fuel mixture around spark plug, and supercharging are three essentials for combustion stability. In order to investigate the effect of flame propagation and thermodynamic conditions on ultra-lean combustion, SACI experiments using lean iso-octane mixture were carried out in a rapid compression machine (RCM) together with high-speed photography to capture flame propagation and reaction front, which indicate combustion modes under various thermodynamic conditions. Knocking intensity (KI) was used to evaluate heat release degree and distinguish non-knock/conventional knock/super-knock regions. Test results show that flame propagation could enhance knock intensity in intermediate temperatures from 800 K to 1000 K due to flame compression. While volumetric ignition becomes dominant over 1000 K due to short ignition delay. Non-knock region occurs under 30 bar mainly due to influence of negative temperature coefficient (NTC). Detonation and supersonic reaction front occur under ultra-lean conditions at effective temperatures from 850 K to 900 K and effective pressures more than 20 bar, which should be suppressed for lean-burn engine application.
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Fan, Q., Qi, Y., and Wang, Z., "Effect of Thermodynamic Conditions on Spark Ignition to Compression Ignition in Ultra-Lean Mixture Using Rapid Compression Machine," SAE Technical Paper 2019-01-0963, 2019, https://doi.org/10.4271/2019-01-0963.Data Sets - Support Documents
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References
- BP Statistical Review of World Energy 2017 https://www.bp.com/content/dam/bp/en/corporate/pdf/energy-economics/statistical-review-2017/bp-statistical-review-of-world-energy-2017-full-report.pdf
- Kalghatgi , G. , Energy , A. , and Yan , J. Is it Really the End of Internal Combustion Engines and Petroleum in Transport? Applied Energy 225 1 965 974 2018
- Hyvönen , J. , Haraldsson , G. , and Johansson , B. Operating Conditions Using Spark Assisted HCCI Combustion During Combustion Mode Transfer to SI in a Multi-Cylinder VCR-HCCI Engine SAE Technical Paper 2005-01-0109 2005 10.4271/2005-01-0109
- Lee , S. , Schenk , C. , and McDonald , J. Air Flow Optimization and Calibration in High-Compression-Ratio Naturally Aspirated SI Engines with Cooled-EGR SAE Technical Paper 2016-01-0565 2016 10.4271/2016-01-0565
- Watson , H. and Mehrani , P. The Performance and Emissions of the Turbocharged Always Lean Burn Spark Ignition (TC-ALSI) Engine SAE Technical Paper 2010-01-1235 2010 10.4271/2010-01-1235
- Hanabusa , H. , Kondo , T. , Hashimoto , K. , Sono , H. et al. Study on Homogeneous Lean Charge Spark Ignition Combustion SAE Technical Paper 2013-01-2562 2013 10.4271/2013-01-2562
- Nakata , K. , Nogawa , S. , Takahashi , D. , Yoshihara , Y. et al. Engine Technologies for Achieving 45% Thermal Efficiency of S.I. Engine SAE Int. J. Engines 9 1 179 192 2016 10.4271/2015-01-1896
- Takahashi , D. , Nakata , K. , Yoshihara , Y. , Ohta , Y. et al. Combustion Development to Achieve Engine Thermal Efficiency of 40% for Hybrid Vehicles SAE Technical Paper 2015-01-1254 2015 10.4271/2015-01-1254
- Yamaji , K. , Tomimatsu , M. , Takagi , I. , Higuchi , A. et al. New 2.0L I4 Gasoline Direct Injection Engine with Toyota New Global Architecture Concept SAE Technical Paper 2018-01-0370 2018 10.4271/2018-01-0370
- Lee , B. , Oh , H. , Han , S. , Woo , S. et al. Development of High Efficiency Gasoline Engine with Thermal Efficiency over 42 SAE Technical Paper 2017-01-2229 2017 10.4271/2017-01-2229
- Fan , Q. , Wang , Z. , Qi , Y. , Wang , Y. et al. Experimental Study of Lean Mixture Combustion at Ultra-High Compression Ratios in a Rapid Compression Machine SAE Technical Paper 2018-01-1422 2018 10.4271/2018-01-1422
- Epping , K. , Aceves , S. , Bechtold , R. , and Dec , J. The Potential of HCCI Combustion for High Efficiency and Low Emissions SAE Technical Paper 2002-01-1923 2002 10.4271/2002-01-1923
- Wang , Z. , Wang , J. , Shuai , S. , and Ma , Q. Effects of Spark Ignition and Stratified Charge on Gasoline HCCI Combustion With Direct Injection SAE Technical Paper 2005-01-0137 2005 10.4271/2005-01-0137
- Wang , Z. , Wang , J. , Tian , G. , Shuai , S. et al. Research on Steady and Transient Performance of an HCCI Engine with Gasoline Direct Injection SAE Technical Paper 2008-01-1723 2008 10.4271/2008-01-1723
- Yu , L. , Li , Y. , Li , B. , Liu , H. et al. Comparative Study on Gasoline HCCI and DICI Combustion in High Load Range with High Compression Ratio for Passenger Cars Application SAE Int. J. Fuels Lubr. 10 3 2017 10.4271/2017-01-2257
- Polovina , D. , McKenna , D. , Wheeler , J. , Sterniak , J. et al. Steady-State Combustion Development of a Downsized Multi-Cylinder Engine with Range Extended HCCI/SACI Capability SAE Int. J. Engines 6 1 504 519 2013 10.4271/2013-01-1655
- Mendrea , B. , Chang , Y. , Akkus , Y. , Sterniak , J. et al. Investigations of the Effect of Ambient Condition on SACI Combustion Range SAE Technical Paper 2015-01-0828 2015 10.4271/2015-01-0828
- Sellnau , M. , Moore , W. , Sinnamon , J. , Hoyer , K. et al. GDCI Multi-Cylinder Engine for High Fuel Efficiency and Low Emissions SAE Int. J. Engines 8 2 775 790 2015 10.4271/2015-01-0834
- Sellnau , M. , Hoyer , K. , Moore , W. , Foster , M. et al. Advancement of GDCI Engine Technology for US 2025 CAFE and Tier 3 Emissions SAE Technical Paper 2018-01-0901 2018 10.4271/2018-01-0901
- Mazda Motor Corporation Briefing on Mazda’s Long-Term Vision for Technology Development[EB/OL] http://www.autopareri.com/applications/core/interface/file/attachment.php?id=17652 2017
- Lavoie , G.A. , Martz , J. , Wooldridge , M. et al. A Multi-Mode Combustion Diagram for Spark Assisted Compression Ignition Combustion & Flame 157 6 1106 1110 2010
- He , X. , Donovan , M.T. , Zigler , B.T. et al. An Experimental and Modeling Study of Iso-octane Ignition Delay Times under Homogeneous Charge Compression Ignition Conditions Combustion & Flame 142 3 266 275 2005
- Assanis , D. , Wagnon , S.W. , and Wooldridge , M.S. An Experimental Study of Flame and Auto-Ignition Interactions of Iso-octane and Air Mixtures Combustion & Flame 162 4 1214 1224 2015
- Mansfield , A.B. , Wooldridge , M.S. , Di , H. et al. Low-Temperature Ignition Behavior of Iso-octane Fuel 139 139 79 86 2015
- Grogan , K.P. , Goldsborough , S.S. , and Ihme , M. Ignition Regimes in Rapid Compression Machines Combustion & Flame 162 8 3071 3080 2015
- Qi , Y. , Wang , Z. , Wang , J. et al. Effects of Thermodynamic Conditions on the End Gas Combustion Mode Associated with Engine Knock Combustion & Flame 162 11 4119 4128 2015
- Liu , H. , Wang , Z. , Wooldridge , M. , Fatouraie , M. et al. Highly Turbocharged Gasoline Engine and Rapid Compression Machine Studies of Super-Knock SAE Int. J. Engines 9 3 1475 1485 2016 10.4271/2016-01-0686
- Xiao , M. , Zhi , W. , Jiang , C. et al. An Optical Study of In-Cylinder CH 2 O and OH Chemiluminescence in Flame-Induced Reaction Front Propagation Using High Speed Imaging Fuel 134 9 603 610 2014
- Wang , Z. , Liu , H. , and Reitz , R.D. Knocking Combustion in Spark-Ignition Engines Progress in Energy & Combustion Science 61 78 112 2017