This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Soot Emission from a Direct Injection Diesel Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 08, 2004 by SAE International in United States
Annotation ability available
This study analyzes the mass, number density and size of the soot formed and oxidized inside a direct injection diesel engine. The predictions were made using the modified KIVA-3V code with the Foster soot model for the different engine operating variables. The multi-step reactions in the Foster model were converted into a system of ordinary differential equations, which was solved using the VODE ODE solver. The computed soot emissions were well compared with the engine-out data obtained from experiments.
The change of the soot size during the expansion stroke was investigated. The surface growth, coagulation and oxidation of soot particles continuously changed size distribution. The sizes of soot particles at EVO timing were predicted to range from 1 nm to 50 nm.
Retarded SOI timing increased the portion of diffusion combustion. Since the surface growth was enhanced by the increase of the diffusion combustion and the oxygen was locally insufficient to oxidize the formed soot, the mass and size of soot at EVO timing were increased for the retarded SOI timing.
When air/fuel ratio was increased, the formation of both precursor and acetylene was reduced due to the low cylinder temperature and less remaining unburned fuel. The mass and size of the soot particles were decreased at EVO timing for the high air/fuel ratio.
- Sangsu Lee - Department of Mechanical Engineering, Sungkyunkwan University, South Korea
- Dongheun Shin - Department of Mechanical Engineering, Sungkyunkwan University, South Korea
- Jeongmin Lee - Department of Mechanical Engineering, Sungkyunkwan University, South Korea
- Nakwon Sung - Department of Mechanical Engineering, Sungkyunkwan University, South Korea
CitationLee, S., Shin, D., Lee, J., and Sung, N., "Soot Emission from a Direct Injection Diesel Engine," SAE Technical Paper 2004-01-0927, 2004, https://doi.org/10.4271/2004-01-0927.
Modelling: Diesel Engines, Multi-Dimensional Engine, and Vehicle and Engine Systems
Number: SP-1826; Published: 2004-03-08
Number: SP-1826; Published: 2004-03-08
- Heywood J. B. “Internal Combustion Engine Fundamentals,” McGraw Hill International editions 626 647 1988
- Hiroyasu H. Nishida K. “Simplified Three Dimensional Modeling of Mixture Formation and Combustion in a D. I. Diesel Engine,” SAE paper 890269 1989
- Balthasar M. Mauss F. Knobel A. Kraft M “Detailed Modeling of Soot Formation in a Partially Flows Reactor,” Combustion and Flame 128 395 409 2002
- Belardini P. Beatrice C. Bertoli C. Del Giacomo N. “New trends in Combustion System Design of Light Duty Diesel Engines Inferred by Threedimensional C.F.D. Computations,” SAE paper 982461 1998
- Fusco A. Knox-Kelecy A. L. Foster D. E. “Application of a Phenomenological Soot Model for Diesel Engine Combustion,” The Third International Symposium on Diagnostics and Modeling of Combustion in Internal Combustion Engines Yokohama, Japan 571 576 1994
- Kazakov A. Foster D. E. “Modeling of Soot Formation during DI Diesel Combustion Using a Multi-Step Phenomenological Model,” SAE paper 982463 1998
- Sung N. Lee S. Kim H. Kim B. “A Numerical Study on Soot Formation and Oxidation for a Direct Injection Diesel Engine,” Proceedings of the Institution of Mechanical Engineers 217 5 2003
- Kim S. “Study on the High Pressure Injection and the Reduction of Regulated Emissions in D. I. Diesel Engine,” Seoul National University 1996
- Amsden A. A. “KIVA-3V Release 2, Improvements to KIVA-3V,” Los Alamos National Laboratory report LA- UR-99-915 1999
- Liu A. B. Mather D. Reitz R. D. “Modeling the Effects of Droplet Drag and Breakup on Fuel Sprays,” SAE paper 930072 1993
- Watkins A. P. Park K. “Assessment and Application of a New Spray Wall Impaction Model,” 1 10 1996
- Halstead M.P. Kirsch L. J. Quinn C. P. “The Autoignition of Hydrocarbon Fuels at High Temperature and Pressures - Fitting of a Mathematical Model,” Combustion and Flame 30 45 60 1977
- Kong S. Han Z. Reitz R. D. “The Development and Application of Diesel Ignition and Combustion Model for Multidimensional Engine Simulation,” SAE paper 950278 1995
- Brown P. N. Byrne G. D. Hindmarsh A. C. “VODE, a Variable-coefficient ODE Solver,” SIAM Journal on Scientific and Statistical Computing 1988
- Mayer A. Hofer L. Schlatter J. Burtscher H. Czerwinski J. “Health Effects, Measurement and Filtration of Solid Particles emitted from Diesel Engines,” Technical report of GRPE-PMP 6 13 2001