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Effects of Washcoat on Initial PM Filtration Efficiency and Pressure Drop in SiC DPF
http://hdl.handle.net/2237/20340
http://hdl.handle.net/2237/20340174f02bd-6102-4227-87c1-bae3eacd250c
名前 / ファイル | ライセンス | アクション |
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Item type | 研究報告書 / Research Paper(1) | |||||
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公開日 | 2014-06-17 | |||||
タイトル | ||||||
タイトル | Effects of Washcoat on Initial PM Filtration Efficiency and Pressure Drop in SiC DPF | |||||
言語 | en | |||||
著者 |
Tsuneyoshi, Koji
× Tsuneyoshi, Koji× Takagi, Osamu× Yamamoto, Kazuhiro |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | Copyright © 2011-01-0817 SAE International. This paper is posted on this site with permission from SAE International. It may not be shared, downloaded, duplicated, printed or transmitted in any manner, or stored on any additional repositories or retrieval system without prior written permission from SAE. | |||||
抄録 | ||||||
内容記述 | The washcoat (W/C) on a catalytic diesel particulate filter (DPF) greatly alters the pore structure and wall surface condition of the original substrate of DPF, which then affects the filtration efficiency and pressure drop behavior. In the present study, we examined this W/C effect on the initial PM filtration efficiency and pressure loss by changing amounts of washcoat on a SiC-DPF. We measured particle number concentration and particle size distribution in the diesel exhaust gas downstream of the DPF by EEPS. High filtration efficiency was achieved quickly when the W/C amount was increased. We introduced new parameters, T90 and T99, which were the filtration efficiencies that reach more than 90% and 99%, respectively, of the initial DPF usage. The PM trapping mechanisms could be classified according to the PM size. Trapping of PM whose diameter is smaller than 30 nm is little affected by the W/C. However, for PM over 30 nm, as amounts of W/C are increased, particle number concentration decreases rapidly and less PM leakage is observed for the initial filtration process. On the other hand, the initial backpressure and the backpressure during soot loading increased in accordance with W/C amount. Since the relationship between the filtration efficiency and the pressure loss has a trade-off, it is important to design DPF by considering W/C effects. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
内容記述 | ||||||
内容記述 | Technical Papers presented at SAE 2011 World Congress & Exhibition | |||||
言語 | en | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | SAE International | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_18ws | |||||
タイプ | research report | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.4271/2011-01-0817 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0148-7191 | |||||
書誌情報 |
en : SAE Technical Paper 巻 2011-01-0817, 発行日 2011-04-12 |
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著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/20340 | |||||
識別子タイプ | HDL |