Soot particle trajectories of a Di diesel engine at 18° ATDC crankshaft angle

Among the major pollutants of diesel engine is soot. Soot is formed as an unwelcome product in combustion systems. Soot emission to the atmosphere leads to global air warming and health problems. Furthermore, deposition of soot particles on cylinder walls contaminates lubricant oil hence increases i...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2013, Vol.50 (1), p.1-6
Main Authors: Hafidzal, M H M, Mahmood, W M F W, Manaf, M Z A, Zakaria, M S, Saadun, M N A, Nordin, M N A
Format: Article
Language:English
Subjects:
Algorithms
Combustion
Combustion chambers
Computer simulation
Crankshafts
Cylinders
Diameters
Diesel engines
Drag
Engine valves
Inlet valves
Interpolation
Lubricants
Matlab
Particle trajectories
Pollutants
Runge-Kutta method
Soot
Walls
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Summary:Among the major pollutants of diesel engine is soot. Soot is formed as an unwelcome product in combustion systems. Soot emission to the atmosphere leads to global air warming and health problems. Furthermore, deposition of soot particles on cylinder walls contaminates lubricant oil hence increases its viscosity. This reduces durability of lubricant oil, causing pumpability problems and increasing wear. Therefore, it is necessary to study soot formation and its movement in diesel engines. This study focuses on soot particle trajectories in diesel engines by considering the diameter of soot particles that were formed at 18[degrees] ATDC crankshaft angle. These soot particle movements are under the influence of drag force with different radial, axial and angular settings and simulated by using MATLAB routine. The mathematical algorithm which was used in the MATLAB routine is trilinear interpolation and 4th order of Runge Kutta. Simulation was carried out for a combustion system of 4 valves DI diesel engine from inlet valve closing (IVC) to exhaust valve opening (EVO). The results show that small diameter of soot particles were transferred near the cylinder wall while bigger soot particle mostly moved in inner radius of the combustion chamber.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/50/1/012003