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The Impact of Exhaust Gas Recirculation on Performance and Emissions of a Heavy-Duty Diesel Engine
Technical Paper
2003-01-1068
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This work studies the complex interactions resulting from the application and control of Exhaust Gas Recirculation (EGR) on a production heavy-duty diesel engine system, and its effectiveness in reducing NOx emissions. The coupling between EGR, the Variable Geometry Turbocharger (VGT) and the EGR cooler critically affects boost pressure, air/fuel ratio (A/F), combustion efficiency and pumping work. It is shown that EGR provides an effective means for reducing flame temperatures and NOx emissions, particularly under low A/F ratio conditions. However, engine thermal efficiency tends to decrease with EGR as a result of decreasing indicated work and increasing pumping work. Combustion deterioration is predominant at higher load, low speed and low boost conditions, due to a significant decrease of A/F ratio with increasing EGR. For conditions allowing the VGT to maintain high enough boost and hence A/F ratio, efficiency losses with increased EGR are largely attributed to increased pumping work. Finally, the total system heat rejection increases significantly due to EGR cooling
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Citation
Jacobs, T., Assanis, D., and Filipi, Z., "The Impact of Exhaust Gas Recirculation on Performance and Emissions of a Heavy-Duty Diesel Engine," SAE Technical Paper 2003-01-1068, 2003, https://doi.org/10.4271/2003-01-1068.Also In
Computer Aided Engineering of Vehicle & Engine Systems & Components
Number: SP-1740; Published: 2003-03-03
Number: SP-1740; Published: 2003-03-03
References
- Berger, L.B. Elliot M.A. Holts T.C. Schrenk H.H. “Diesel Engines Underground - II. Effect of Adding Exhaust Gas to Intake Air.” U.S. Dept. of Int., Bur. Of Mines 7867 Nov. 1940
- Miller, A.E. Sullis S. “Recycling Exhaust Gas for Suppressing of Knock in I.C.E.” Proc. Am. Petroleum Inst. 151 1953
- Haagen-Smit Fox M.M. “Automobile Exhaust and Ozone Formation,” SAE Golden Anniversary Meeting Detroit, Michigan January 1955
- Kopa, R.D. Kimura H. “Exhaust Gas Recirculation as a Method of Nitrogen Oxides Control in an Internal Combustion Engine,” APCA 53 rd Annual Meeting Cincinnati, Ohio May 1960
- Yee, S.Y. Linville W. “The Effect of Exhaust Gas Recirculation on Oxides of Nitrogen,” ACPA 53 rd Annual Meeting Cincinnati, Ohio May 1960
- Ladommatos, N. Abdelhalim S.M. Zhao H. Hu Z. “The Dilution, Chemical, and Thermal Effects of Exhaust Gas Recirculation on Diesel Engine Emissions - Part 1: Effect of Reducing Inlet Charge Oxygen,” SAE Paper 961165 International Spring Fuels and Lubricants Meeting Dearborn, Michigan 1996
- Ladommatos, N. Abdelhalim S.M. Zhao H. Hu Z. “The Dilution, Chemical, and Thermal Effects of Exhaust Gas Recirculation on Diesel Engine Emissions - Part 2: Effects of Carbon Dioxide,” SAE Paper 961167 International Spring Fuels and Lubricants Meeting Dearborn, Michigan 1996
- Ladommatos, N. Abdelhalim S.M. Zhao H. Hu Z. “The Dilution, Chemical, and Thermal Effects of Exhaust Gas Recirculation on Diesel Engine Emissions - Part 3: Effects of Water Vapour” SAE Paper 971659 International Spring Fuels and Lubricants Meeting Dearborn, Michigan 1997
- Arnold, S. Slupski K. Groskreutz M. Vrbas G. Cadle R. Shahed S. “Advanced Turbocharging Technologies for Heavy-Duty Diesel Engines,” SAE Paper 2001-01-3260 2001
- Pfeifer, A. Smeets M. Herrmann H.O. Tomazic D. Richert F. Schlober A. “A New Approach to Boost Pressure and EGR Rate Control Development for HD Truck Engines with VGT” SAE Paper 2002-01-0965 SAE International Congress and Exposition 2002
- Baert, R.S.G. Beckman D.E. Veen A. “Efficient EGR Technology for Future HD Diesel Engine Emission Targets” SAE Paper 1999-01-0837 SAE International Congress and Exposition Detroit, Michigan 1999
- Hawley, J.G. Wallace F.J. Cox A. Horrocks R.W. Bird G.L. “Reduction of Steady State NO x Levels from an Automotive Diesel Engine Using Optimised VGT/EGR Schedules,” SAE Paper 1999-01-0835 SAE International Congress and Exposition Detroit, Michigan 1999
- Nitu, B. Singh I. Zhong L. Badreshany K. Henein N. Bryzik W. “Effect of EGR on Autoignition, Combustion, Regulated Emissions and Aldehydes in DI Diesel Engines,” SAE Paper 2002-01-1153 SAE International Congress and Exposition 2002
- Ladommatos, N. Abdelhalim S. Zhao H. Hu Z. “Effects of EGR on Heat Release in Diesel Combustion,” SAE Paper 980184 SAE International Congress and Exposition 1998
- Assanis, D. N. Filipi, Z. S. Fiveland, S. B. Syrimis, M. “A Predictive Ignition Delay Correlation Under Steady-State and Transient Operation of a Direct Injection Diesel Engine,” Proceedings of 1999 ASME-ICE Fall Technical Conference Paper # 99-ICE-231 33 2 Ann Arbor, MI 1999
- Xia, Y. Q. Flanagan, R. C. “Ignition Delay - A General Engine/Fuel Model,” SAE Paper 870591 1987
- Heywood, John B. Internal Combustion Engine Fundamentals McGraw-Hill New York 1988
- Ladommatos, N. Abdelhalim S.M. Zhao H. Hu Z. “The Dilution, Chemical, and Thermal Effects of Exhaust Gas Recirculation on Diesel Engine Emissions - Part 4: Effects of Carbon Dioxide and Water Vapour” SAE Paper 971660 International Spring Fuels and Lubricants Meeting Dearborn, Michigan 1997
- Durnholz, M. Eifler G. Endres H. “Exhaust Gas Recirculation - A Measure to Reduce Exhaust Emissions of DI Diesel Engines,” SAE Paper 920725 1992
- Mitchell, D.L. Pinson J.A. Litzinger T.A. “The Effects of Simulated EGR via Intake Air Dilution on Combustion in an Optically Accessible DI Diesel Engine,” SAE Paper 932798 1993