WEKO3
アイテム
Flame structure and flame spread rate over a solid fuel in partially premixed atmospheres
http://hdl.handle.net/2237/20040
http://hdl.handle.net/2237/20040033acd1c-ed11-462b-af24-d17b31aeb38c
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
93.pdf (587.8 kB)
|
|
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-05-23 | |||||
| タイトル | ||||||
| タイトル | Flame structure and flame spread rate over a solid fuel in partially premixed atmospheres | |||||
| 言語 | en | |||||
| 著者 |
Yamamoto, Kazuhiro
× Yamamoto, Kazuhiro× Ogata, Yoshinori× Yamashita, Hiroshi |
|||||
| 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 | This is the author's version of a work that was accepted for publication in Proceedings of the Combustion Institute. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms, may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Proceedings of the Combustion Institute. v.33, n.2, 2011, p.2441–2448, DOI: http://dx.doi.org/10.1016/j.proci.2010.06.089 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Flame spread | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Solid fuel | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Partially premixed flame | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Flame index | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Lewis number | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We have investigated the downward flame spread over a thin solid fuel. Hydrogen, methane, or propane, included in the gaseous product of pyrolysis reaction, is added in the ambient air. The fuel concentration is kept below the lean flammability limit to observe the partially premixing effect. Both experimental and numerical studies have been conducted. Results show that, in partially premixed atmospheres, both blue flame and luminous flame regions are enlarged, and the flame spread rate is increased. Based on the flame index, a so-called triple flame is observed. The heat release rate ahead of the original diffusion flame is increased by adding the fuel, and its profile is moved upstream. Here, we focus on the heat input by adding the fuel in the opposed air, which could be a direct factor to intensify the combustion reaction. The dependence of the flame spread rate on the heat input is almost the same for methane and propane/air mixtures, but larger effect is observed for hydrogen/air mixture. Since the deficient reactant in lean mixture is fuel, the larger effect of hydrogen could be explained based on the Lewis number consideration. That is, the combustion is surely intensified for all cases, but this effect is larger for lean hydrogen/air mixture (Le < 1), because more fuel diffuses toward the lean premixed flame ahead of the original diffusion flame. Resultantly, the pyrolysis reaction is promoted to support the higher flame spread rate. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1016/j.proci.2010.06.089 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 1540-7489 | |||||
| 書誌情報 |
en : Proceedings of the Combustion Institute 巻 33, 号 2, p. 2441-2448, 発行日 2011 |
|||||
| 著者版フラグ | ||||||
| 値 | author | |||||
| URI | ||||||
| 識別子 | http://dx.doi.org/10.1016/j.proci.2010.06.089 | |||||
| 識別子タイプ | DOI | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/20040 | |||||
| 識別子タイプ | HDL | |||||
