This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Study of Exhaust Re-Breathing Application on a DI SI Engine at Partial Load Operation
Technical Paper
2018-36-0129
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Using Exhaust Gas Recycling (EGR) on internal combustion engines enables the reduction of emissions with a low or even no cost to the engine efficiency at part-load operation. The charge dilution with EGR can even increase the engine efficiency due to de-throttling and reduction of part load pumping losses. This experimental study proposed the use of late exhaust valve closure (LEVC) to achieve internal EGR (increased residual gas trapping). A naturally aspirated single cylinder direct injection spark ignition engine equipped with four electro-hydraulic actuated valves that enabled full valve timing and lift variation. Eight levels of positive valve overlap (PVO) with LEVC were used at the constant load of 6.0 bar IMEP and the speed of 1500 rpm. The results have shown that later exhaust valve closure (EVC) required greater intake pressures to maintain the engine load due to the higher burned gases content. Hence, lower pumping losses and thus higher indicated efficiency were obtained. The higher charge dilution lowered the combustion temperatures and hence the formation of oxides of nitrogen (NOx). Unburned hydrocarbon emissions reduced as well, while a slight increase on carbon monoxide emissions was observed. Spark assisted compression ignition (SACI) combustion was identified at the longest exhaust valve opening durations tested due to increased in-cylinder temperature.
Authors
Topic
Citation
Cogo, V., Lanzanova, T., Dalla Nora, M., Martins, M. et al., "Study of Exhaust Re-Breathing Application on a DI SI Engine at Partial Load Operation," SAE Technical Paper 2018-36-0129, 2018, https://doi.org/10.4271/2018-36-0129.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 |
Also In
References
- Wei , Haiqiao , Tianyu Zhu , Gequn Shu , Linlin Tan , and Yuesen Wang Gasoline Engine Exhaust Gas Recirculation - A Review Applied Energy 99 x 534 44 2012 https://doi.org/10.1016/j.apenergy.2012.05.011
- Lattimore , Thomas , José M. Herreros , Hongming Xu , and Shijin Shuai Investigation of Compression Ratio and Fuel Effect on Combustion and PM Emissions in a DISI Engine Fuel 169 x 68 78 2016 https://doi.org/10.1016/j.fuel.2015.10.044
- Cairns , Alasdair , and Hugh Blaxill The Effects of Combined Internal and External Exhaust Gas Recirculation on Gasoline Controlled Auto-Ignition 2005 724 2005 https://doi.org/10.4271/2005-01-0133
- Bozza , Fabio , Vincenzo De Bellis , and Luigi Teodosio Potentials of Cooled EGR and Water Injection for Knock Resistance and Fuel Consumption Improvements of Gasoline Engines Applied Energy 169 2016 https://doi.org/10.1016/j.apenergy.2016.01.129
- Grandin , Börje , and Hans-Erik Angstrom Replacing Fuel Enrichment in a Turbo Charged SI Engine: Lean Burn or Cooled EGR AE Technical Paper 1999-01-35 1999
- Fontana , G. , and E. Galloni Experimental Analysis of a Spark- Ignition Engine Using Exhaust Gas Recycle at WOT Operation Applied Energy 87 7 2187 93 2010 https://doi.org/10.1016/J.APENERGY.2009.11.022
- Caton , Jerald A. A Thermodynamic Comparison of External and Internal Exhaust Gas Dilution for High-Efficiency Internal Combustion Engines International Journal of Engine Research 16 8 935 55 2015 https://doi.org/10.1177/1468087414560593
- Zhang , Y. , and H. Zhao Investigation of Combustion, Performance and Emission Characteristics of 2-Stroke and 4- Stroke Spark Ignition and CAI/HCCI Operations in a DI Gasoline Applied Energy 130 Elsevier Ltd 244 55 2014 https://doi.org/10.1016/j.apenergy.2014.05.036
- Xie , Hui , Le Li , Tao Chen , Weifei Yu , Xinyan Wang , and Hua Zhao Study on Spark Assisted Compression Ignition (SACI) Combustion with Positive Valve Overlap at Medium-High Load Applied Energy 101 622 33 2013 https://doi.org/10.1016/j.apenergy.2012.07.015
- Zhang , Shupeng , Guoming Zhu , and Zongxuan Sun A Control-Oriented Charge Mixing and Two-Zone HCCI Combustion Model IEEE Transactions on Vehicular Technology 63 3 1079 90 2014 https://doi.org/10.1109/TVT.2013.2285074
- Manofsky , Laura , J. Vavra , Dennis Assanis , and Aristotelis Babajimopoulos Bridging the Gap between HCCI and SI: Spark-Assisted Compression Ignition SAE Technical Paper https://doi.org/10.4271/2011-01-1179
- Adcock , Ian. ICE Breaker! SAE International Automotive Engineering Magazine 24 October 2017
- Cogo , Vitor V. , Macklini Dalla Nora , Thompson D. M. Lanzanova , André N. Aronis , and Mario E. S. Martins Effect of Injection Timing on Performance, Combustion and Emissions of a Gasoline DI Engine Curitiba - PR: ABCM COBEM 2017 https://doi.org/doi://10.26678/ABCM.COBEM2017.COB17-1496
- Heywood , John B. Internal Combustion Engine Fundementals McGrawHill Series in Mechanical Engineering 1988 0- 07-028637-X
- Abbaszadehmosayebi , G. , and Lionel Ganippa Determination of Specific Heat Ratio and Error Analysis for Engine Heat Release Calculations Applied Energy 122 Elsevier Ltd 14350 2014 https://doi.org/10.1016/j.apenergy.2014.01.028
- Alagumalai , A. Combustion Characteristics of Lemongrass (Cymbopogon Flexuosus) Oil in a Oartial Premixed Charge Compression Ignition Engine Alexandria Engineering Journal 2015 https://doi.org/10.1016/j.aej.2015.03.021
- United Nations Agreement Concerning the Adoption of Uniform Conditions of Approval and Reciprocal Recognition of Approval for Motor Vehicle Equipment and Parts, Done at Geneva on 20 March 1958 Addendum 48: Regulation No. 49 Revision 6 2013
- Turns , Stephen R. Pollutant Emissions An Introduction to Combustion - Turns Concepts and Applications 2nd McGrawHill series in mechanical engineering 2000
- Ferguson , Colin R. , and Allan T. Kirkpatrick Internal Combustion Engines Applied Thermosciences 2nd New York, NY John Wiley & Sons, Inc 2001 https://doi.org/dor10.1201/9781420044324.ch10