This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Empirical Study of Energy in Diesel Combustion Emissions with EGR Application
ISSN: 0148-7191, e-ISSN: 2688-3627
Published August 30, 2011 by SAE International in United States
Annotation ability available
Modern diesel engines were known for producing ultra-low levels of hydrogen and hydrocarbons. However, as emission control techniques such as exhaust gas recirculation (EGR) are implemented to meet stringent NOx standards, the resulting increase in partial-combustion products can be significant in quantity both as pollutants and sources of lost engine efficiency. In this work, a modern common-rail diesel engine was configured to investigate the EGR threshold for elevated carbon monoxide, hydrocarbon, and hydrogen emissions at fixed loads and fixed heat-release phasing. It is noted that increase in hydrocarbons, in particular light hydrocarbons (such as methane, ethylene, and acetylene) was concurrent with ultra-low NOx emissions. Hydrogen gas can be emitted in significant quantities with the application of very high EGR. Under ultra-low NOx production conditions for medium and high load conditions, the light hydrocarbon species can account for the majority of hydrocarbon emissions.
CitationXie, K., Han, X., Asad, U., Reader, G. et al., "Empirical Study of Energy in Diesel Combustion Emissions with EGR Application," SAE Technical Paper 2011-01-1817, 2011, https://doi.org/10.4271/2011-01-1817.
- Greeves, G. Khan, I.M. Wang, C.H.T. Fenne, I. Orgins of Hydrocarbon Emissions from Diesel Engines SAE Technical Paper 770259 1977
- Aceves, S.A. Flowers, D.L. Espinosa-Loza, F. Martinez-Fias, J. Dibble, R.W. Christenson, M. Bengt, J. Hessel, R.P. Piston-liner Crevice Geometry Effect on HCCI Combustion by Mulit-zone Analysis SAE Technical Paper 2002-01-2869 2002
- Lewis, S.A. Storey, J.M.E. Bunting, B. Szybist, J.P. Partial Oxidation Products and Other Hydrocarbon Species in Diesel HCCI Exhaust SAE Technical Paper 2005-01-3737 2005
- Dec, J.E. A Computational Study of the Effects of Low Fuel Loading and EGR on Heat Release Rates and Combustion Limits in HCCI Engines SAE Technical Paper 2002-01-1309 2002
- Musculus, M.P.B. Lachaux, T. Pickett, L.M. Idicheria, C.A. End-of-Injection Over-Mixing and Unburned Hydrocarbon Emissions in Low-Temperature-Combustion Diesel Engines SAE Technical Paper 2007-01-0907 2007
- Koci, C. Ra, Y. Krieger, R. Andrie, M. et al. “Detailed Unburned Hydrocarbon Investigations a Highly-Dilute Diesel Low Temperature Combustion Regime,” SAE Int. J. Engines 2 1 858 879 2009 10.4271/2009-01-0928
- Leppard, W.R. A Comparison of Olefin and Paraffin Autoignition Chemistries: A Motored Engine Study SAE Technical Paper 892081 1989
- Natti, K.C. Bhattacharyya, A. Kastury, A. Henein, N.A. An Analysis of Regulated and Unregulated Emissions in an HSDI Diesel Engine under the LTC Regime SAE Technical Paper 2007-01-0905 2007
- Bohac, S.V. Han, M. Jacobs, T.J. López, A.J. Assanis, D.N. Speciated Hydrocarbon Emissions from an Automotive Diesel Engine and DOC Utilizing Conventional and PCI Combustion SAE Paper 2006-01-0201 2006
- Li, T. Ogawa, H. Regulated Emissions and Speciated Hydrocarbons from Smokeless Low-Temperature Combustion Diesel Engines with Ultra-high Exhaust Gas Recirculation and Exhaust Oxidation Catalyst Proceedings of IMechE, Part D: J. Automobile Engineering 223 673 683 2009
- Northrop, W.F. Vanderpool, L.M. Madathil, P.V. Assanis, D.N. Bohac, S.V. Investigation of Hydrocarbon Emissions in Partialy Premixed Diesel Combustion Proceedings of the ASME Internal Combustion Engine Division 2009 Fall Technical Conference September 20 24 2009