This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Investigation to Leveraging Effect of Ethanol Direct Injection (EDI) in a Gasoline Port Injection (GPI) Engine
Technical Paper
2013-01-1322
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Ethanol has been used either as an alternative fuel or in blends with gasoline in spark ignition (SI) engines for many years. However, the existing method of using ethanol fuel by blending gasoline and ethanol fuel does not fully exploit the ethanol fuel's potential in improving engine thermal efficiency and reducing pollutant emissions. The dual-fuel injection strategy, ethanol direct injection plus gasoline port injection (EDI+GPI), offers a potentially new way to make the best use of ethanol fuel. In this paper the potential of EDI+GPI is investigated based on experiments conducted on a single cylinder SI research engine equipped with EDI+GPI. The leveraging effect of EDI+GPI on engine performance was investigated at different ethanol/gasoline energy ratios (EERs) and speeds. Then further investigation to the leveraging effect enhanced by ethanol injection timing and spark timing was performed. Experimental results showed that the IMEP increased with the increase of EER. Engine combustion characterized by initial, early and major durations was improved with the increase of EER until the EER was 42.4%. HC and CO decreased with the increase of EER until the EER was 24.2% and increased with further increase of EER. Experimental results for leveraging effect enhanced by ethanol injection timing and spark timing showed that the later ethanol direct injection after the inlet valve was closed was effective in suppressing engine knock and enabling more advanced spark timing. Earlier ethanol direct injection before the inlet valve was closed could effectively increase the volumetric efficiency. However its effect on knock suppression was less than that with later ethanol direct injection. The combined effects of spark advance and improved volumetric efficiency in early ethanol direct injection led to higher IMEP and engine efficiency than that in later ethanol direct injection.
Recommended Content
Authors
Topic
Citation
Zhuang, Y. and Hong, G., "Investigation to Leveraging Effect of Ethanol Direct Injection (EDI) in a Gasoline Port Injection (GPI) Engine," SAE Technical Paper 2013-01-1322, 2013, https://doi.org/10.4271/2013-01-1322.Also In
References
- Eyidogan , M. , Ozsezen , A. N. , Canakci , M. , Turkcan , A. Impact of alcohol-gasoline fuel blends on the performance and combustion characteristics of an SI engine Fuel 89 2010 2713 2720
- Chen , R. H. , Chiang , L. , Chen , C. , Lin , T. Cold-start emissions of an SI engine using ethanol-gasoline blended fuel Applied Thermal Engineering 31 2011 1463 1467
- Kabasin , D. , Hoyer , K. , Kazour , J. Heated Injectors for Ethanol Cold Starts SAE International Journal of Fuels and Lubricants 1 2 172 179 2009 10.4271/2009-01-0615
- Lebedevas , S. , Lebedeva , G. The problems of using alcohol biofuel mixtures in the Lithuanian transport system Transport 24 2009 58 65
- Lapuerta , M. , García-Contreras , R. , Agudelo , J. R. Lubricity of Ethanol-Biodiesel-Diesel Fuel Blends Energy Fuels 24 2010 1374 1379
- Hsieha , W.D. , Wub , T.L. , Lin , T.H. Engine performance and pollutant emission of an SI engine using ethanol-gasoline blended fuels Atmospheric Environment 36 2002 403 410
- Costa , R.C. , Sodré , J.R. Compression ratio effects on an ethanol/gasoline fuelled engine performance Applied Thermal Engineering 31 2011 278 283
- Celik , M.B. Experimental determination of suitable ethanol-gasoline blend rate at high compression ratio for gasoline engine Applied Thermal Engineering 28 2008 396 404
- Dong , W. , Hsieha , Chen , H.R. , Wu , L.T. , Lin , T.H. Engine performance and pollutant emission of an SI engine using ethanol-gasoline blended fuels Atmospheric Environment 36 2002 403 410
- Sandquist , H. , Karlsson , M. , and Denbratt , I. Influence of Ethanol Content in Gasoline on Speciated Emissions from a Direct Injection Stratified Charge SI Engine SAE Technical Paper 2001-01-1206 2001 10.4271/2001-01-1206
- Cohn , D.R. , Bromberg , L. , Heywood , J.B. Direct injection ethanol boosted gasoline engines: biofuel leveraging for cost effective reduction of oil dependence and CO2 emissions 2005 Massachusetts Institute of Technology Cambridge, MA
- Stein , R. , House , C. , and Leone , T. Optimal Use of E85 in a Turbocharged Direct Injection Engine SAE Int. J. Fuels Lubr. 2 1 670 682 2009 10.4271/2009-01-1490
- Taniguchi , S. , Yoshida , K. , and Tsukasaki , Y. Feasibility Study of Ethanol Applications to A Direct Injection Gasoline Engine SAE Technical Paper 2007-01-2037 2007 10.4271/2007-01-2037
- Daniel , R. , Wang , C. , Xu , H. , Tian , G. et al. Dual-Injection as a Knock Mitigation Strategy Using Pure Ethanol and Methanol SAE Int. J. Fuels Lubr. 5 2 772 784 2012 10.4271/2012-01-1152
- Zhuang , Y. , Wang , J. , and Hong , G. Development of a research engine for investigating ethanol fuel direct injection plus gasoline fuel port injection (EDI+GPI) Proceedings of the 18th Australasian Fluid Mechanics Conference Launceston, Australia 3 7 December 2012
- Zhuang , Y. , Hong , G. Primary investigation to leveraging effect of using ethanol fuel on reducing gasoline fuel consumption Fuel 105 2013 425 431
- Yang , J. , Anderson , R. Fuel Injection Strategies to Increase Full-Load Torque Output of a Direct-Injection SI Engine SAE Technical Paper 980495 1998 10.4271/980495
- Kasseris , E. and Heywood , J. Charge Cooling Effects on Knock Limits in SI DI Engines Using Gasoline/Ethanol Blends: Part 1-Quantifying Charge Cooling SAE Technical Paper 2012-01-1275 2012 10.4271/2012-01-1275
- Nakata , K. , Utsumi , S. , Ota , A. , Kawatake , K. et al. The Effect of Ethanol Fuel on a Spark Ignition Engine SAE Technical Paper 2006-01-3380 2006 10.4271/2006-01-3380
- Szybist , J. , Foster , M. , Moore , W. , Confer , K. et al. Investigation of Knock Limited Compression Ratio of Ethanol Gasoline Blends SAE Technical Paper 2010-01-0619 2010 10.4271/2010-01-0619
- Daniel , R. , Wang , C. , Xu , H. , and Tian , G. Effects of Combustion Phasing, Injection Timing, Relative Air-Fuel Ratio and Variable Valve Timing on SI Engine Performance and Emissions using 2,5-Dimethylfuran SAE Int. J. Fuels Lubr. 5 2 855 866 2012 10.4271/2012-01-1285
- Hassaneen , A. , Varde , K. , Bawady , A. , and Morgan , A. A Study of The Flame Development and Rapid Burn Durations In A Lean-Burn Fuel Injected Natural Gas S.I. Engine SAE Technical Paper 981384 1998 10.4271/981384