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A Comparison Between Different EGR Systems for HD Diesel Engines and Their Effect on Performance, Fuel Consumption and Emissions
Technical Paper
2000-01-0226
ISSN: 0148-7191, e-ISSN: 2688-3627
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SAE 2000 World Congress
Language:
English
Abstract
An effective way of meeting future emission legislation with a heavy-duty diesel engine is to equip the engine with an EGR-system combined with a particulate trap. In this study the work was concentrated on the EGR-system. The goal of the investigation was to find an EGR-system that could deliver enough air and exhaust gases to the engine to meet the Euro IV emission levels with minimum penalty on engine performance and fuel consumption, starting from a Euro 0 engine. The tests showed that it was possible to significantly improve emissions with all the tested EGR-systems in combination with a particulate trap, but notable differences with respect to fuel consumption were found.
For all EGR systems under study, the main factors influencing engine performance and fuel consumption were found to be.
- Pumping losses.
- Residual gases.
- Temperature of the recirculated exhaust gases.
- Distribution of the recirculated exhaust gases between the cylinders
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Lundqvist, U., Smedler, G., and Stålhammar, P., "A Comparison Between Different EGR Systems for HD Diesel Engines and Their Effect on Performance, Fuel Consumption and Emissions," SAE Technical Paper 2000-01-0226, 2000, https://doi.org/10.4271/2000-01-0226.Data Sets - Support Documents
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References
- Zelenka Paul Aufinger Hans Reczek Walter Cartellieri Wolfgang “Cooled EGR - A key technology for future efficient HD Diesels” SAE paper 980190 , Int. Congress & Exposition 1998
- Baert R.S.G. Beckman D.E Veen A. “Efficient EGR technology for future HD diesel emission targets” SAE paper 1999-01-0837 , Int. Congress & Exposition 1999