Abstract
A comparison of two mathematical models from two cycle simulation software packages predicting a cold flow and filtration process of a Diesel Particulate Filter (DPF) is studied extensively. Three Cordierite Diesel Particulate Filters (DPF) models, with variations in washcoats (bare, washcoat-only, and catalyzed washcoat), are built and validated to experimental data. The goal is to estimate the values of wall permeability ( ) and friction loss coefficient ( ) from the flow bench test and the values of soot permeability ( ) from the filtration process. Good agreements are found comparing between experimental data and simulation. The values of those parameters obtained from each software packages show the same trend among all tested DPF samples. However, they are different when comparing cases by cases because of the methodology lies in each mathematical model. Keyword: Diesel Particulate Filter, Wall Loading, Aftertreatment Cycle Simulation
Highlights
In present, diesel fuel is considered as one of the main energy sources in both personal and business transportations
Diesel fuel is considered as one of the main energy sources in both personal and business transportations. This is due to the fact that with the same engine size, diesel engines can produce higher power and torque than gasoline engines [1] but the drawback lies in more polluted emissions, especially Particulate Matters (PM)
With the current design of Diesel Particulate Filter (DPF), the reduction of PM from the diesel engine can be more than 95%conversion efficiency [5]
Summary
Diesel fuel is considered as one of the main energy sources in both personal and business transportations. This is due to the fact that with the same engine size, diesel engines can produce higher power and torque than gasoline engines [1] but the drawback lies in more polluted emissions, especially Particulate Matters (PM). Diesel Particulate Filter (DPF) has been developed to collect and oxidize PM from diesel engine exhaust gases in order to solve this issue. They are installed into the exhaust system and performed like typical threeway catalytic converters in SI engines.
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