3D-Simulation of soot loading and regeneration of diesel particulate filters

MTZ worldwide ◽  
2006 ◽  
Vol 67 (4) ◽  
pp. 2-5 ◽  
Author(s):  
Christof Hinterberger ◽  
Rolf Kaiser ◽  
Mark Olesen
Keyword(s):  
3D Simulation ◽  
Diesel Particulate ◽  
Diesel Particulate Filters ◽  
Particulate Filters ◽  
Soot Loading

Experimental investigation of the pressure drop in porous ceramic diesel particulate filters

2002 ◽  
Vol 216 (9) ◽  
pp. 773-784 ◽  
Author(s):  
G A Stratakis ◽  
D L Psarianos ◽  
A M Stamatelos
Keyword(s):  
Pressure Drop ◽  
Porous Ceramic ◽  
Computer Calculation ◽  
Fuel Additive ◽  
Complex Flow ◽  
Diesel Particulate ◽  
Diesel Particulate Filters ◽  
Particulate Filters ◽  
Experimental Apparatus ◽  
Soot Loading

Understanding of the mechanisms that affect flow and pressure drop in porous ceramic diesel particulate filters is important in the design optimization of this class of diesel exhaust after- treatment systems. Furthermore, determination of the parameters involved in the calculation of pressure drop as a function of collected soot mass is important for successful filter loading and regeneration modelling. This paper presents the results of an experimental analysis of pressure drop as a function of the geometric and operating parameters of cordierite and SiC diesel filters. Single- cell filters from cordierite and silicon carbide were prepared to single out any effects from the complex flow processes that take place in a full-sized filter. The product of soot layer permeability and density was experimentally determined by employing a specially designed experimental apparatus. The calculation was supported by a simple computer calculation that is also presented in this paper. The distribution of soot loading inside the channels of a full-sized filter, in various loaded and partially regenerated conditions, was assessed by connecting the apparatus to discharge through selected channels of the filter. The results are shown to improve understanding of the effects of partial regeneration and fuel additive residuals on filter back pressure and flow and soot loading distribution.

1D and 3D CFD Simulation of Exhaust-Gas Aftertreatment Devices: Parameter Optimization via Genetic Algorithm

2004 ◽  
Author(s):  
R. Wanker ◽  
J. C. Wurzenberger ◽  
D. Higbie
Keyword(s):  
Cfd Simulation ◽  
Fine Tuning ◽  
3D Simulation ◽  
Design Stage ◽  
Exhaust Gas ◽  
Catalytic Converters ◽  
Simulation Code ◽  
Diesel Particulate ◽  
Diesel Particulate Filters ◽  
Particulate Filters

Future limits on emissions for both gasoline and Diesel engines require adequate and advanced systems for the aftertreatment of the exhaust gas. Computer models as a complementary tool to experimental investigations are indispensable to design reliable after-treatment devices such as catalytic converters and Diesel particulate filters. Therefore, the objective of this contribution is to present an integrated 1D to 3D simulation workflow of catalytic converters (Three-Way-Catalyst, Diesel Oxidation Catalyst, Selective Catalytic Reduction Catalyst, ...) and Diesel particulate filters. The parameters or sets of parameters are obtained by a fast and efficient 1D-approach of BOOST. They are readily transferable to the 3D simulation code FIRE to investigate detailed aspects such as spatial distribution of temperatures or heat losses. Thus, identical models predicting flow, energy and conversion of species of the exhaust gas were employed to both the 1D gas exchange/cycle and the 3D CFD simulation code. This approach allows to carry out a basic analysis and to define first layouts for the exhaust system. Characteristic parameters of this first design stage are used for the multi-dimensional simulation to evaluate the overall performance including fine tuning of aftertreatment systems.

Impact on vehicle fuel economy of the soot loading on diesel particulate filters made of different substrate materials

Energy ◽  
2015 ◽  
Vol 86 ◽  
pp. 19-30 ◽  
Author(s):  
Federico Millo ◽  
Maurizio Andreata ◽  
Mahsa Rafigh ◽  
Davide Mercuri ◽  
Chiara Pozzi
Keyword(s):  
Fuel Economy ◽  
Diesel Particulate ◽  
Diesel Particulate Filters ◽  
Particulate Filters ◽  
Soot Loading
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