Soot deposition effects and microwave regeneration modelling of diesel particulate filtration system

2020 ◽  
Vol 93 (2) ◽  
pp. 463-473 ◽  
Author(s):  
Caneon Kurien ◽  
Ajay Kumar Srivastava ◽  
Niranajan Gandigudi ◽  
Karan Anand
Keyword(s):  
Diesel Particulate ◽  
Soot Deposition ◽  
Filtration System ◽  
Microwave Regeneration ◽  
Particulate Filtration

Simulation on soot deposition and combustion in diesel particulate filter

2009 ◽  
Vol 32 (2) ◽  
pp. 1965-1972 ◽  
Author(s):  
K. Yamamoto ◽  
S. Oohori ◽  
H. Yamashita ◽  
S. Daido
Keyword(s):  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
Diesel Particulate ◽  
Soot Deposition

Boundary Conditions for Combustion Field and LB Simulation of Diesel Particulate Filter

2013 ◽  
Vol 13 (3) ◽  
pp. 769-779 ◽  
Author(s):  
Kazuhiro Yamamoto
Keyword(s):  
Lattice Boltzmann ◽  
Diesel Particulate Filter ◽  
Complex Geometry ◽  
Numerical Procedure ◽  
Soot Oxidation ◽  
Particulate Filter ◽  
Soot Combustion ◽  
Diesel Particulate ◽  
Soot Deposition ◽  
Lattice Boltzmann Simulation

AbstractA diesel particulate filter (DPF) is a key technology to meet future emission standards of particulate matters (PM), mainly soot. It is generally consists of a wall-flow type filter positioned in the exhaust stream of a diesel vehicle. It is difficult to simulate the thermal flow in DPF, because we need to consider the soot deposition and combustion in the complex geometry of filter wall. In our previous study, we proposed an approach for the conjugate simulation of gas-solid flow. That is, the gas phase was simulated by the lattice Boltzmann method (LBM), coupled with the equation of heat conduction inside the solid filter substrate. However, its numerical procedure was slightly complex. In this study, to reduce numerical costs, we have tested a new boundary condition with chemical equilibrium in soot combustion at the surface of filter substrate. Based on the soot oxidation rate with catalysts evaluated in experiments, the lattice Boltzmann simulation of soot combustion in the catalyzed DPF is firstly presented to consider the process in the after-treatment of diesel exhaust gas. The heat and mass transfer is shown to discuss the effect of catalysts.

Evaluation of a Cyclone-Based Particulate Filtration System for High-Speed Diesel Engines

1994 ◽  
Vol 208 (4) ◽  
pp. 269-279 ◽  
Author(s):  
C Arcoumanis ◽  
L N Barbaris ◽  
R I Crane ◽  
P Wisby
Keyword(s):  
Diesel Engines ◽  
High Speed ◽  
Direct Injection ◽  
Operating Conditions ◽  
Exhaust Pipe ◽  
Filtration System ◽  
High Speed Diesel ◽  
Wide Range ◽  
Mass Flowrate ◽  
Particulate Filtration

A cyclone-based filtration system has been developed and its potential for reduction of exhaust particulates in high-speed direct injection diesel engines is evaluated; the filtration efficiency of the four cyclones has been enhanced by means of particulate agglomeration induced by cooling in a heat exchanger. With this system installed in the exhaust pipe of a 2.5 litre direct injection engine, tests covering a wide range of speed, load and exhaust gas recirculation (EGR) fraction resulted in reductions of up to 77 per cent in emitted particulate mass flowrate. The dependence of the system's performance on engine operating conditions, EGR configuration and cyclone geometry is presented and discussed.

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