Numerical calculation of PM trapping and oxidation of diesel particulate filter – Analysis of PM combustionbehavior by a catalyst (Fourth Report)
1次元モデルによる触媒付きディーゼル微粒子フィルターのPM堆積・酸化シミュレーション －触媒の活性化エネルギーの効果(第4報)
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- Publication code
- 20214132
- Paper/Info type
- JSAE Transaction
Vol.52 No.2
- Pages
- 257-262(Total 6 p)
- Date of publication
- Mar 2021
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 研究論文 Translation |
|---|---|
| Category(E) | ResearchPaper |
| Author(J) | 1) 中村 真季, 2) 横田 幸治, 3) 小澤 正邦 |
| Author(E) | 1) Maki Nakamura, 2) Koji Yokota, 3) Masakuni Ozawa |
| Affiliation(J) | 1) 名古屋大学, 2) 名古屋大学, 3) 名古屋大学 |
| Abstract(J) | 本研究ではDPFの触媒活性の依存性について一次元モデルによる数値計算を行う.排ガスの流入部から流出部に排ガスが流れる時のPM堆積分布や再生時の酸化挙動のモデルを使用し, 利用が想定される触媒の活性化エネルギーを用いて触媒を担持した場合のPM燃焼挙動を検討した． Translation |
| Abstract(E) | The particulate matter (PM) emitted from the diesel engine is collected and removed by the diesel particulate filter (DPF). When performing PM removal, it is necessary to raise the temperature of exhaust gas, so deterioration of fuel efficiency is a serious problem. Therefore, we aim to propose an optimal DPF structure with catalyst addition. In this study, PM combustion behavior inside the DPF when the catalyst is supported is carried out by numerical calculation. As a result, the effectiveness of the catalyst is recognized. It is found that there is a difference in the amount of PM combustion change according to the difference in the activation energy. In this result, it can be suggested that a catalyst having activation energy ΔE = 120 KJ/mol or less is effective. It is also possible to completely remove PM in a single regeneration by using a catalyst with low activation energy or by increasing the exhaust gas temperature. The calculation technique we proposed will enable the qualitative examination of the structure of DPF with catalyst addition, which can be useful for the optimization design of DPF. |
