Numerical calculation of PM trapping and oxidation of diesel particulate filter – Analysis of PM combustion behavior by a catalyst (Fourth Report)
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- Nakamura Maki
- 名古屋大学
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- Yokota Koji
- 名古屋大学
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- Ozawa Masakuni
- 名古屋大学
Bibliographic Information
- Other Title
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- 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)
Abstract
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.
Journal
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- Transactions of Society of Automotive Engineers of Japan
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Transactions of Society of Automotive Engineers of Japan 52 (2), 257-262, 2021
Society of Automotive Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390287142237827712
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- NII Article ID
- 130007988048
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- ISSN
- 18830811
- 02878321
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed