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Flow Resistance Descriptors for Diesel Particulate Filters: Definitions, Measurements and Testing
Technical Paper
2003-01-0846
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In the present work a practice for conducting experiments and analyzing the fundamental descriptors of Diesel Particulate Filter (DPF) flow resistance behavior is described. The recommended practice addresses each of the following areas: definition of flow resistance descriptors, filter geometrical characteristics, experimental setup and data analysis methods. The sources of errors in each area are identified and a sensitivity analysis is performed. Finally, the recommended practice is applied to several filter materials and configurations tested in the laboratory to determine objectively a set of flow resistance descriptors (namely the filter wall permeability, inlet/outlet loss coefficient) and their error bars. It is expected that application of the recommended practice for the determination of the flow resistance descriptors of DPFs will lead to better quality control procedures and meaningful comparisons of experimental data collected at different laboratories. As a useful outcome of the suggested practice a permeability-pore structure correlation extending over 5 orders of magnitude for cordierite and SiC porous media is obtained and the effect of catalyst coating on the filter flow resistance is analyzed.
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Citation
Konstandopoulos, A., "Flow Resistance Descriptors for Diesel Particulate Filters: Definitions, Measurements and Testing," SAE Technical Paper 2003-01-0846, 2003, https://doi.org/10.4271/2003-01-0846.Also In
Diesel Emission Measurement, Modeling, & Control from the SAE 2003 World Congress on CD-ROM
Number: SP-1754CD; Published: 2003-03-03
Number: SP-1754CD; Published: 2003-03-03
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