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<論文>湿り空気流中での固体炭素の燃焼
https://jaxa.repo.nii.ac.jp/records/32626
https://jaxa.repo.nii.ac.jp/records/32626fd101bfe-477c-4664-9738-63317bd30582
名前 / ファイル | ライセンス | アクション |
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SA0125967.pdf (824.4 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
タイトル | <論文>湿り空気流中での固体炭素の燃焼 | |||||
言語 | ||||||
言語 | jpn | |||||
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 | departmental bulletin paper | |||||
その他のタイトル(英) | ||||||
その他のタイトル | Combustion of Solid Carbon under Humid Air Flows | |||||
著者 |
辻, 廣
× 辻, 廣× 松井, 潔× 牧野, 敦× TSUJI, Hiroshi× MATSUI, Kiyoshi× MAKINO, Atsushi |
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著者所属 | ||||||
東京大学宇宙航空研究所 | ||||||
著者所属 | ||||||
東京大学宇宙航空研究所 | ||||||
著者所属 | ||||||
東京大学宇宙航空研究所 | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Space and Aeronautical Science, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Space and Aeronautical Science, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Space and Aeronautical Science, University of Tokyo | ||||||
出版者 | ||||||
出版者 | 東京大学宇宙航空研究所 | |||||
書誌情報 |
東京大学宇宙航空研究所報告 巻 17, 号 1_B, p. 241-259, 発行日 1981-03 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 空気流中の水蒸気濃度が固体炭素の燃焼率に及ぼす影響を調べるために,種々の水蒸気濃度をもつ空気のよどみ流れの場で燃焼実験が行なわれた.空気流中の水蒸気濃度はモル分率で0.0022,0.017,0.1であり,その速度勾配は約340 1/s,85 1/s,22 1/sである.試料炭素は黒鉛質で,形状は直径10 mm,厚さ1mmの円板である.各燃焼実験中試料の表面温度は1000~1700 Kの範囲で一定に保たれた.実験の結果以下のことがわかった.1. 空気流中の水蒸気濃度が高い場合でも,燃焼量は燃焼時間に比例する.2. 空気流中の水蒸気濃度が増加すると固体炭素の燃焼率は減少する.3. 固体炭素表面温度1200~1500 Kでは燃焼率は表面化学反応速度と気体反応物の固体表面への拡散率の両方に支配され,表面温度1500 K以上では気体反応物の拡散率に支配される.4. 拡散支配である固体炭素表面温度1500 Kでは,空気流中の水蒸気は炭素の酸素による酸化率を抑制する. | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Combustion experiments were made under air flows having water-vapor concentrations of 0.0022, 0.017, and 0.1; and the effects of water-vapor concentration on the combustion rate were examined. Test specimens of solid carbon were burned in the stagnation flow field; the velocity gradients were about 340 1/s, 85 1/s, and 22 1/s. The test specimen, consisting of graphitized carbon, is a disk of 10 mm diameter and 1 mm thickness. The surface temperature of the test specimen was kept constant by an external heat source during each experimental run in the range 1000-1700 K. The following results have been obtained: 1) Presence of a large quantity of water vapor in air flows does not affect the linearity of the relation between burned mass and burned time. 2) Increase in the water-vapor concentration in air flows decreases the combustion rate. 3) In the surface temperature range 1200-1500 K. the combustion rate is controlled both by surface kinetic rate and by diffusion rate of gaseous reactants; for the surface temperatures higher than 1500 K. the combustion rate is predominantly controlled by the diffusion rate. 4) For the combustion at the surface temperature of 1500K (diffusion controlled combustion), water vapor in air flows reduces the rate of oxidation of solid carbon by oxygen. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0563-8100 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00161914 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: SA0125967000 |