Numerical Simulation of CO Catalytic Reaction in Gasoline Particulate Filter with Soot Deposition Layer
スス堆積層を考慮したGPFのCO触媒反応シミュレーション
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- Available on the other site
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- Publication code
- 20224508
- Paper/Info type
- JSAE Transaction
Vol.53 No.5
- Pages
- 827-832(Total 6 p)
- Date of publication
- Sep 2022
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 研究論文 Translation |
|---|---|
| Category(E) | ResearchPaper |
| Author(J) | 1) 山本 和弘, 2) 大竹 陸郎 |
| Author(E) | 1) Kazuhiro Yamamoto, 2) Rikuro Otake |
| Affiliation(J) | 1) 名古屋大学, 2) 名古屋大学 |
| Abstract(J) | 格子ボルツマン法を用いて，スス堆積層を考慮したGPFのCO触媒反応シミュレーションを行い，隔壁温度，流入速度，スス堆積量の影響を調べた．スス堆積層が存在すると，隔壁に流入する速度分布とCO転換率が変化する．隔壁温度が高くなるほど，もしくは隔壁平均流入速度が小さいほどCO転換率は高い値をとる． Translation |
| Abstract(E) | In a gasoline exhaust aftertreatment system, a three-way catalytic converter (TWC) is used for the reduction of CO, HC, NOx. Recently, for the reduction of particulate matters (PMs) including soot, a gasoline particulate filter (GPF) is also needed. The coated GPF, called a four-way catalytic converter (FWC), has been developing. However, the performance of the catalyst may be dropped by the deposited soot. In this study, we simulated a CO catalytic reaction in the GPF with soot deposition layer. Effects of substrate temperature, inflow velocity, and the amount of deposited soot were investigated. Results show that, when there is soot layer on the filter wall, the distribution of the velocity across the filter wall changes. When the substrate temperature is higher or the inflow velocity is smaller, the conversion ratio of CO to CO2 increases. The soot layer changes the velocity across the filter, which affects the CO conversion ratio. |
