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Thermal structure of flame spread in partially premixed atmospheres and effects of fuel Lewis number
http://hdl.handle.net/2237/21187
http://hdl.handle.net/2237/21187b21b42d5-2a6d-4358-a0a9-7ceead1e02fd
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
122_2.pdf (208.0 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2015-02-06 | |||||
| タイトル | ||||||
| タイトル | Thermal structure of flame spread in partially premixed atmospheres and effects of fuel Lewis number | |||||
| 言語 | en | |||||
| 著者 |
Yamamoto, Kazuhiro
× Yamamoto, Kazuhiro× Seo, Satoshi× Mori, Koichi |
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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 | NOTICE: 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.35, n.3, 2015, p.2589–2596, DOI: http://dx.doi.org/10.1016/j.proci.2014.06.075 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Flame spread | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Partially premixed atmosphere | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Thermal structure | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Pyrolysis | |||||
| 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 | The experimental study on the flame spread in partially premixed atmospheres was presented. Two samples of different filter thickness and density were used. Gaseous fuels of hydrogen, methane, and propane were added in the opposed air, focusing on the fuel Lewis number (Le). In the partially premixed atmospheres, the pyrolysis zone and the region of high temperature are expanded. Since the flame temperature is increased, the heat transfer rate to the preheat zone of the filter is promoted, which is confirmed by the de Ris’s formula of the thermally thin model. The heat transfer due to the heat conduction from the flame is 60–80% of total heat transfer. By comparing the results of the preheated air, the corresponding temperature rise caused by fuel addition is evaluated. For all fuels, the linear increase of temperature rise with the fuel concentration (Cf) is confirmed. However, at the fixed fuel concentration, the temperature rise depends on the fuel type. Generally, there are two factors directly related with thermal structure of combustion field such as the flame temperature. One is the heat of combustion (H), and the other is the fuel Lewis number, because the opposed flow is the lean mixture. Since Le is proportional to the inverse of the fuel diffusivity, the temperature rise could be corrected by 1/Le. Resultantly, for all fuels, the temperature rise collapses to a single curve with the correlation of (Cf ∗ H/Le). Thus, the Lewis number is a very important and useful parameter to discuss the thermal structure and the flame spread rate in partially premixed atmospheres. | |||||
| 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.2014.06.075 | |||||
| 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 35, 号 3, p. 2589-2596, 発行日 2014-07 |
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| 著者版フラグ | ||||||
| 値 | author | |||||
| URI | ||||||
| 識別子 | http://dx.doi.org/10.1016/j.proci.2014.06.075 | |||||
| 識別子タイプ | DOI | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/21187 | |||||
| 識別子タイプ | HDL | |||||
