This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Low-pressure EGR in Combination with Soot Filters For Diesel NOx and Particulate Control
Technical Paper
2001-26-0006
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SIAT 2001
Language:
English
Abstract
Researchers worldwide are facing technical challenges regarding simultaneous reduction of diesel NOx and particulate matter. To address such challenges, several alternative approaches are being pursued by engine OEMs and catalyst companies with various levels of success. One of the approaches is the combined use of an EGR and a soot filter, where an EGR controls emissions of NOx, and a soot filter reduces particulate matter.
While most researchers focus their efforts on developing an EGR / soot filter system for new engines, the authors of this paper concern themselves with developing a system for retrofit applications. Such a system will have a significant impact on worldwide air quality and human health, as many existing engines can further be retrofitted. Once fully developed and proved to be efficient, this system could be adopted for OEM applications as well.
This paper discusses various practical aspects of implementing such a system, including engine performance and durability, passive and active EGR controls, soot filter performance with EGR and the suitability for specific applications. This paper is purely of an experimental nature, where most points are supported by experimental data, while a few others are given in the form of general discussion.
Contained in this paper are the results of extensive laboratory studies involving modern truck and bus engines. The proposed EGR / soot filter system demonstrated 35-42% reduction of NOx, and 85-88% reduction of TPM emissions.
Authors
Topic
Citation
Gorel, A. and Voss, K., "Low-pressure EGR in Combination with Soot Filters For Diesel NOx and Particulate Control," SAE Technical Paper 2001-26-0006, 2001, https://doi.org/10.4271/2001-26-0006.Also In
References
- Graf, G. Hrauda, G. Bartsch, P. “Layout of a High Load EGR System for LD, MD and HD Truck Engines by Means of Simulation” SAE Paper 2000-01-0225
- Lundqvist, U. Smedler, G. Stalhammar, P. “A Comparison Between Different EGR Systems for HD Diesel Engines and Their Effect on Performance, Fuel Consumption and Emissions” SAE Paper 2000-01-0226
- Ladommatos, N. Abdelhalim S. Zhao, H. “The effects of exhaust gas recirculation on diesel combustion and emissions” Int. J Engine Research 1 1 2000 IMechE
- Banzhaf, M. Lutz, R. “Heat Exchanger for Cooled Exhaust Gas Recirculation” SAE Paper 971822 1997
- Jelles, S.J. et al “The Influence of NOx on the oxidation of Metal Activated Diesel Soot” Catalysus Today 53 623 630 1999
- Baert, R.S.G. Beckman, D.E. Veen, A. “Efficient EGR Technology for future Heavy-Duty Diesel Engine Emission Targets” TNO Paper VM 9901 SAE Congress & Exhibition March 1999