This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Partially Premixed Combustion at High Load using Gasoline and Ethanol, a Comparison with Diesel
Technical Paper
2009-01-0944
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This paper is the follow up of a previous work and its target is to demonstrate that the best fuel for a Compression Ignition engine has to be with high Octane Number.
An advanced injection strategy was designed in order to run Gasoline in a CI engine. At high load it consisted in injecting 54 % of the fuel very early in the pilot and the remaining around TDC; the second injection is used as ignition trigger and an appropriate amount of cool EGR has to be used in order to avoid pre-ignition of the pilot. Substantially lower NOx, soot and specific fuel consumption were achieved at 16.56 bar gross IMEP as compared to Diesel. The pressure rise rate did not constitute any problem thanks to the stratification created by the main injection and a partial overlap between start of the combustion and main injection. Ethanol gave excellent results too; with this fuel the maximum load was limited at 14.80 bar gross IMEP because of hardware issues.
Applying the commonly used PPC injection strategies to Gasoline resulted in higher pressure oscillations after combustion and the heat transfer was enhanced. It was shown that this problem can be somehow solved by employing a late pilot injection, unfortunately the combustion is diffusion controlled and there is an increase in fuel consumption as compared to the strategy previously described.
The viability of having low fuel consumption, NOx, soot and pressure rise rate using high ON fuels in a CI engine was demonstrated using a Scania single cylinder truck engine with 2 liters displacement volume running at 1100 rpm.
Recommended Content
Authors
Topic
Citation
Manente, V., Johansson, B., and Tunestal, P., "Partially Premixed Combustion at High Load using Gasoline and Ethanol, a Comparison with Diesel," SAE Technical Paper 2009-01-0944, 2009, https://doi.org/10.4271/2009-01-0944.Also In
References
- Onishi S. et al. “Active Thermo-Atmosphere Combustion, ATAC, a New Combustion Process for Internal Combustion Engine” SAE 790501
- Najt P. Foster D. E. “Compression-Ignited Homogeneous Charge Combustion” SAE 830264
- Ogawa H. et al. “A Study of Heat Rejection and Combustion Characteristics of a low-temperature and Pre-mixed Combustion Concept Based on Measurement of instantaneous Heat Flux in a Direct-Injection Diesel Engine” SAE 2000-01-2792
- Kawamoto K. et al. “Combination of Combustion Concept and Fuel Property for Ultra-Clean DI Diesel” SAE 2004-01-1868
- Hasegawa R. Yanagihara H. “HCCI Combustion in DI Diesel Engine” SAE 2003-01-0745
- Kimura S. et al. “An experimental analysis of of low temperature and premixed combustion for simultaneous reduction of of NOx and particulate emissions in direct injection diesel engines” Int. J. Engine res. 3 4 249 259 2002
- Su W. et al. “A compound technology for HCCI combustion in a DI diesel engine based on multi-pulse injection and the BUMP combustion chamber” SAE 2003-01-741 2003
- Mueller C.J. Martin G.C. Briggs T.E. Duffy K.P. “An experimental investigation of in cylinder processes under dual-injection conditions in a DI diesel engine” SAE 2004-01-1843 2004
- Dronniou N. et al. “Combination of high EGR rates and multiple injection strategies to reduce pollutant emissions” SAE 2005-01-3726 2005
- Andersson M. et al. “Characterization of Partially Premixed Combustion” SAE 2006-01-3412
- Yoshihiro H. et al. “Emissions Reduction Potential of Super Boost and High EGR Rate of an HSDI Diesel Engine and the Reduction Mechanism of Exhaust Emissions” SAE 2008-01-1189
- Kalghatgi G. Risberg P. Angstrom H. “Advantages of Fuels with High Resistance to Auto-ignition in Late-injection, Low-temperature, Compression Ignition Combustion” SAE 2006-04-3385
- Kalghatgi G. Risberg P. Angstrom H. “Partially Pre-Mixed Auto-Ignition of Gasoline to Attain Low Smoke and Low NOx at High Load in a Compression Ignition Engine and Comparison with a Diesel Fuel” SAE 2007-01-0006
- Manente V. et al. “Half Load Partially Premixed Combustion, PPC, with High Octane Number Fuels. Gasoline and Ethanol Compared with Diesel” SAE 295 ARAIINDIA 2009
- Heywood J.B. “Internal combustion engine fundamentals” McGraw Hill Book Co. 1988
- Christensen M. et al. “Supercharged Homogeneous Charge Compression Ignition (HCCI) with Exhaust Gas Recirculation and Pilot Fuel” SAE 2000-01-1835
- Tsurushima T. et al. “The Effect of Knock on Heat Loss in Homogeneous Charge Compression Ignition Engines” SAE 2002-01-0108
- Lewander M. et al. “Investigation of the Combustion Characteristics with Focus on Partially Premixed Combustion in a Heavy Duty Engine” SAE 2008-01-1658
- Tunestal P. “Self Tuning Cylinder Pressure Based Heat Release Computation” Proceedings of the IFAC Symposium on Advances in Automotive Control Monterey Coast, California August 2007
- Manente V. et al. “Validation of a Self Tuning Gross Heat Release Algorithm” SAE 008-01-1672