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The Optimum Cell Density for Wall-Flow Monolithic Filters: Effects of Filter Permeability, Soot Cake Structure and Ash Loading
Technical Paper
2004-01-1133
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A major challenge in the development of diesel filter systems is the selection of the appropriate filter medium in terms of its geometric configuration (cell density, wall thickness) and its physical properties (porosity, pore size). This selection aims to achieve minimization of the filter pressure drop as well as more efficient filter regeneration.
The aim of the present work is to provide engineering criteria to support the design and selection of suitably sized wall-flow monolithic filters for diesel particulate control. The approach followed in the present paper is to employ a comprehensive, experimentally validated mathematical framework taking into account the effects of filter structure (cell density, filter dimensions, wall thickness, permeability), soot cake microstructure and its evolution under varying exhaust flow conditions, as well as ash accumulation, in order to derive optimal configurations and sizing criteria of monolithic filters that can be used for specific applications. A major result concerns the derivation of nomographs giving the optimum cell density for honeycomb filters under the combined constraints of given filter volume, exhaust flow, temperature, as well as different soot and ash loadings inside the filter. These nomographs are expected to facilitate the task of selection and reliable life-cycle deployment of diesel particulate filters.
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Citation
Konstandopoulos, A. and Kladopoulou, E., "The Optimum Cell Density for Wall-Flow Monolithic Filters: Effects of Filter Permeability, Soot Cake Structure and Ash Loading," SAE Technical Paper 2004-01-1133, 2004, https://doi.org/10.4271/2004-01-1133.Also In
Diesel Emissions on CD-ROM from the SAE 2004 World Congress
Number: SP-1835CD; Published: 2004-03-08
Number: SP-1835CD; Published: 2004-03-08
References
- Bélot G. “More than Half a Million Ultra Clean PSA Diesel Vehicles with FAP in the Field” presented in: 7 th ETH Conference on Combustion Generated Particles Zurich, Switzerland 18-20 August 2003
- DieselNet Technology Guide http://www.dieselnet.com
- Konstandopoulos A. G. Skaperdas E. Warren J. Allanson R. “Optimized Filter Design and Selection Criteria for Continuously Regenerating Diesel Particulate Traps” SAE Tech. Paper No. 1999-01-0468 1999
- Konstandopoulos A. G. Johnson, J. H. “Wall-Flow Diesel Particulate Filters - Their Pressure Drop and Collection Efficiency” SAE Tech. Paper No. 890405 1989
- Konstandopoulos A. G. Kostoglou M. Skaperdas E. Papaioannou E. Zarvalis D. Kladopoulou E. “Fundamental Studies of Diesel Particulate Filters: Transient Loading, Regeneration and Aging” SAE Tech. Paper No. 2000-01-1016 2000
- Masoudi M Konstandopoulos A. G. Nikitidis M. S. Skaperdas E. Kladopoulou E. Altiparmakis C. “Validation of a Model and Development of a Simulator for Predicting the Pressure Drop of Diesel Particulate Filters” SAE Tech. Paper No. 2001-01-0911 2001
- Konstandopoulos A. G. Kladopoulou E. “A Virtual Sensor for On-Board Diagnostics and Control of Diesel Particulate Filters” CD AUTO 03 4 th International Conference on Control and Diagnostics in Automotive Applications Sestri-Levante, Italy 18-20 June 2003
- Konstandopoulos A. G. Skaperdas E. Masoudi M. “Inertial Contributions to the Pressure Drop of Diesel Particulate Filters” SAE Tech. Paper No. 2001-01-0909 2001
- Skaperdas E. Konstandopoulos A. G. “Prediction of Diesel Particulate Filter Loading Behavior for System Control Applications” CD AUTO 01 3 rd International Conference on Control and Diagnostics in Automotive Applications Sestri-Levante, Italy 4-6 July 2001
- Wolfram S. The Mathematica Book Third Cambridge University Press 1996
- Konstandopoulos A. G. Skaperdas E. Mansoudi M. “Microstructural Properties of Soot Deposits in Diesel Particulate Filters” SAE Tech. Paper No. 2002-01-1015 2002
- Tassopoulos M. O' Brien J. A. Rosner D. E. “Simulation of Microstructure /Mechanism Relationships in Particle Deposition” AIChE J. 35 6 967 980 1989
- Konstandopoulos A. G. Kostoglou M. Housiada P. Vlachos N. Zarvalis D. “Multichannel Simulation of Soot Oxidation in Diesel Particulate Filters” SAE Tech. Paper No. 2003-01-0839 2003
- Bardasz E. Mackney D. Britton N. Kleinschek G. Olofsson K. Murray I Walker A. P. “Investigations of the Interactions between Lubricant-Derived Species and Aftertreatment Systems on a State-of-the-Art Heavy Duty Diesel Engine” SAE Tech. Paper No. 2003-01-1963 2003