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  1. B200 工学部/工学研究科
  2. B200e 会議資料
  3. 国際会議

Effects of Washcoat on Initial PM Filtration Efficiency and Pressure Drop in SiC DPF

http://hdl.handle.net/2237/20340
http://hdl.handle.net/2237/20340
174f02bd-6102-4227-87c1-bae3eacd250c
名前 / ファイル ライセンス アクション
100.pdf 100.pdf (733.2 kB)
Item type 研究報告書 / Research Paper(1)
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

WEKO 53190

en Tsuneyoshi, Koji

Search repository
Takagi, Osamu

× Takagi, Osamu

WEKO 53191

en Takagi, Osamu

Search repository
Yamamoto, Kazuhiro

× Yamamoto, Kazuhiro

WEKO 53192

en Yamamoto, Kazuhiro

Search repository
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
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
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