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TECHNICAL PAPERS

A Numerical Study of NOx Reduction for a DI Diesel Engine With Complex Geometry

[+] Author and Article Information
Renshan Liu

The University of Western Ontario, Department of Mechanical and Materials Engineering, London, Ontario, Canada, N6A 5B9

Chao Zhang

The University of Western Ontario, Department of Mechanical and Materials Engineering, London, Ontario, Canada, N6A 5B9

J. Energy Resour. Technol 126(1), 13-20 (May 04, 2004) (8 pages) doi:10.1115/1.1627366 History: Received October 01, 2002; Revised July 01, 2003; Online May 04, 2004
Copyright © 2004 by ASME
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References

Hikosaka,  N., 1995, “A View of the Future of Automotive Diesel Engines,” SAE Trans., 104, Section 3: Journal of Engines, pp. 2071–2081.
Walsh,  M. P., 1999, “Global Trends in Diesel Emission Control—A 1999 Update,” SAE Trans., 108, Section 4: Journal of Fuels and Lubricants, pp. 1–17.
EPA, USA, 2000, “Control of Air Pollution From New Motor Vehicles Proposed Heavy Duty Engine and Vehicle Standards and Highway Diesel Fuel Sulfur Control Requirements,” EPA Public Docket No. A-99-06.
Patterson,  M. A., Kong,  S. C., Hampson,  G. J., and Reitz,  R. D., 1994, “Modeling the Effects of Fuel Injection Characteristics on Diesel Engine Soot and NOx Emissions,” SAE Trans., 103, Section 3: Journal of Engines, pp. 836–852.
Mather,  D. K., and Reitz,  R. D., 1998, “Modeling the Influence of Fuel Injection Parameters on Diesel Engine Emissions,” SAE Trans., 107, Section 3: Journal of Engines, pp. 1145–1155.
Jansons,  M., Lin,  S., and Choi,  S., 1999, “Study of High-Pressure Injection DI Diesel Engine,” SAE Trans., 108, Section 4: Journal of Fuels and Lubricants, pp. 1434–1449.
Das, S., Houtz, P. J., and Reitz, R. D., 1999, “Effect of Injection Spray Angle and Combustion Chamber Geometry on Engine Performance and Emission Characteristics of a Large Bore Diesel Engine,” Proceedings of 1999 Spring Technical Conference of ASME Internal Combustion Engine, ICE-Vol. 32-1, pp. 1–11.
Amsden, A. A., O’Rourke, P. J., and Butler, T. D., 1989, “KIVA-II: A Computer Program for Chemically Reactive Flows With Sprays,” Los Alamos National Laboratory Report, Doc No. LA-11560-MS.
Amsden, A. A., 1993, “KIVA-3: A KIVA Program With Block-Structured Mesh for Complex Geometries,” Los Alamos National Laboratory Report, Doc No. LA-12503-MS.
Warnatz, J., Mass, U., and Dibble, R. W., 1996, Combustion: Physical and Chemical Fundamentals, Modeling and Simulation, Experiments, Pollutant Formation, Springer, Berlin.
Hanson, R. K., and Salimian, S., 1984, Survey of Rate Constants in H/N/O Systems, Combustion Chemistry, Springer-Verlag, New York.
Bedford, F., Rutland, C., Dittrich, P., and Wirbeleit, F., 1999, “Mechanisms of NOx Reduction From Water Injection in a DI Diesel Engine,” Proceedings of 1999 Spring Technical Conference of ASME Internal Combustion Engine, ICE-Vol. 32-1, pp. 13–27.
Strauss,  T. S., Schweimer,  G. W., and Ritscher,  U., 1995, “Combustion in a Swirl Chamber Diesel Engine Simulation by Computation of Fluid Dynamics,” SAE Trans. 104, Section 3: Journal of Engines, pp. 519–530.
Heywood, J. B., 1988, Internal Combustion Engine Fundamentals, McGraw Hill Book Company, New York.

Figures

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The perspective view and cross section view at the symmetry plane of the meshed engine
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Physical regions of the DI Diesel engine
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The fuel injection profile
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Schematic diagram of a cylinder of the DI Diesel engine
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The effect of the grid resolution on the averaged cylinder pressure prediction
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The effect of the grid resolution on the local temperature at cross section of y=0 cm, z=9.8 cm
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A complete engine cycle showing the fuel injection timings under investigation
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Overall NO formation history for the four fuel injection timings
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Trade-off relationship between the NO formation and the thermal efficiency for various fuel injection timings
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The fuel injection durations under investigation
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Overall NO formation history for the four fuel injection durations
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Trade-off relationship between the NO formation and the thermal efficiency for various fuel injection durations
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Comparison of the three different piston bowl depths under investigation
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Overall NO formation history for the three piston bowls
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Trade-off relationship between the NOx formation and the thermal efficiency for the three piston bowls

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