This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Comparative Study to Assess the Soot Reduction Potential of Different In-Cylinder Methods and Exhaust Gas Aftertreatment Systems for Direct Injection Diesel Engines
Technical Paper
2007-01-4016
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In this study different methods to reduce the soot emissions of Diesel engines were investigated and compared to obtain their soot reduction potential. Apart from investigations on the practically usable engine map area with so called homogeneous charge compression ignition (HCCI) combustion processes a new heterogeneous combustion processes was developed and investigated which offers significantly reduced soot emissions while still applicable in the entire engine map. For the HCCI experiments the emphasis was put on the achievable engine load range when using conventional injector nozzles which still allow a conventional heterogeneous engine operation. The newly developed heterogeneous combustion process is mainly characterized by an injection strategy which separates the different part injections not only temporally but also spatially and therefore on the one hand reduces the soot formation during the early stages of the combustion and on the other hand increases the soot oxidation later during the combustion. In addition to these investigations of the soot reduction potential of advanced in-cylinder methods a newly designed modular particulate filter system with an electrical regeneration strategy was tested, which enables a filter regeneration independent of additional engine measures with almost no impact on the fuel consumption regarding the energy amount necessary for the filter regeneration.
The comparison of these different measures for reduced soot emissions has revealed that in-cylinder measures with reduced raw emissions are important and effective, but a complete soot reduction by means of the maximum achievable filtration efficiency of a particulate filter is still only possible with a particulate filter system. For the impact of the different measures on the fuel economy to achieve these very-low soot emissions today still the regeneration strategy of the particulate trap plays the key role.
Recommended Content
Authors
- Uwe Wagner - Institute for Reciprocating Engines, Universität Karlsruhe (TH)
- Sascha Merkel - Institute for Reciprocating Engines, Universität Karlsruhe (TH)
- Peter Eckert - Institute for Reciprocating Engines, Universität Karlsruhe (TH)
- Ulrich Spicher - Institute for Reciprocating Engines, Universität Karlsruhe (TH)
Topic
Citation
Wagner, U., Merkel, S., Eckert, P., and Spicher, U., "Comparative Study to Assess the Soot Reduction Potential of Different In-Cylinder Methods and Exhaust Gas Aftertreatment Systems for Direct Injection Diesel Engines," SAE Technical Paper 2007-01-4016, 2007, https://doi.org/10.4271/2007-01-4016.Also In
References
- Schlütter, J. 2005
- Badami, M. et al. “Influence of Multiple Injection Strategies on Emissions, Combustion Noise and BSFC of a DI Common Rail Diesel Engine” SAE paper 2002-01-0503 2002
- Kubach, H. Logos Verlag Berlin 2004
- Müller et al. Dresden 2001
- Hansen, J. RWTH Aachen 1989
- Stiesch, G. Merker, G. P. B. G. Teubner Verlag 3-519-06381-6 Stuttgart, Leipzig 1999
- Suzuki, H. Koike, N. Ishii, H. Odaka, M. “Exhaust Purification of Diesel Engines by Homogenous Charge with Compression Ignition Part 1: Experimental Investigation of Combustion Behavior under Premixed Homogenous Ignition Method” SAE Paper 970313 1997
- Stanglmaier, R. Roberts, C. “Homogenous Charge Compression Ignition: Benefits, Compromises and Future Engine Applications” SAE Paper 1999-01-3682 1999
- Christensen, M. Johansson, B. Einewall, P. “Homogenous Charge Compression Ignition (HCCI) using Iso-Octane, Ethanol and Natural Gas - A Comparison with Spark Ignition Operation,” SAE Paper 972874 1997
- Christensen, M. Hultquist, A. Johansson, B. “Demonstrating the Multi Fuel Capability of a HCCI engine with Variable Compression Ratio” SAE 1999-01-3679 1999
- Wagner, U. Anca, R. Velji, A. Spicher, U. “An Experimental Study of Homogenous Charge Compression Ignition (HCCI) with Various Compression Ratios, Intake Air Temperatures and Fuels with Port and Direct Fuel Injection” SAE Paper 2003-01-2293 2003
- Jean, E. Dresden 2003
- Enderle, C. Nolte, A. Paule, M. Duvinage, F. 2. Emission Control Dresden 2004
- Hermann, H.O. Lang, O. Mikulic, I. Scholz, V. MTZ 9 2001
- Heimlich, F. MTZ 5 2004
- Rembor, H.-J. 2004
- Bremser, K. Ranalli, M. Kroner, P. Dresden 2005
- Kahrstedt, J. Behnk, K. Sommer, A. Wormbs, T. 2003
- Bockhorn, H. “Soot Formation in Combustion: Mechanisms and Models” Springer Series in Chemical Physics Springer Verlag Heidelberg 1994
- Merkel, S. et al. 8. International Congress Engine Combustion Processes Munich 2007
- Pöttker, S. Culliver Verlag Göttingen 2005
- Pöttker et. al. “Investigations of HCCI Combustion Using Multi-Stage Direct-Injection with Synthetic Fuels” SAE paper 2004-01-2946 2004
- Velji, A. Frankfurt 2005
- Terres, F. Michelin, J. Weltens, H. MTZ 7-8 2002
- Hopp, M. RWTH Aachen 2001
- Böhm, H. et al. “Measurements about the Influence of Pressure and Temperature in Premixed Flames” 22. International Symposium on Combustion 1988
- Houben, M. Lepperhoff, g. “Soot formation in local zones of fuel/burned gas-mixture in diesel engines” 19. International Congress on Combustion Engines Florence 1991
- Mayer, K. Logos Verlag Berlin 2000