Flame Propagation and Combustion State Transition in a Sub-millimeter Constant-volume Space
文献类型：期刊论文
| 作者 | Su, Hang1,2,3,4; Huo, Jiepeng1,2,3,4; Wang, Xiaohan1,2,3 ; Jiang, Liqiao1,2,3; Song, Qianshi1,2,3,4; Zhao, Daiqing1,2,3
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| 刊名 | COMBUSTION SCIENCE AND TECHNOLOGY
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| 出版日期 | 2020-01-18 |
| 页码 | 19 |
| 关键词 | Micro-combustion constant-volume chamber flame propagation instability deflagration |
| ISSN号 | 0010-2202 |
| DOI | 10.1080/00102202.2020.1716340 |
| 通讯作者 | Wang, Xiaohan(wangxh@ms.giec.ac.cn) |
| 英文摘要 | Experimental studies on premixed flame propagation characteristics in a sub-millimeter-scale closed chamber are performed. Propane/air mixtures are ignited in the center of the visualized chamber and the subsequent flame front evolution process is recorded. The effects of the gap size of the chamber and the initial pressure of the mixture on the flame behaviors are investigated. In the condition of the gap size H = 0.45 mm, the flammable range of propane/air mixtures ranges from 2.0 bar to 3.0 bar of initial pressure P-0, and from 0.9 to 1.5 of the equivalence ratio phi. At H = 0.45 mm, the flammability limit of the mixture is lower than that of large scale, and the instability of flame propagation is higher. With suitable initial conditions, such as P-0 >= 2.5 bar, phi = 1.2 similar to 1.3, and H = 0.45 mm, the transition from a low-speed laminar flame to a high-speed deflagration flame is observed. When the size of the combustion chamber height is as small as the laminar flame surface thickness, acoustic waves in the combustion chamber dominate flame propagation. The interaction between the acoustic wave and the flame front greatly increases the flame surface area, resulting in great enhancement of reaction and subsequent flame deflagration. Furthermore, the increase in initial pressure will dramatically increase the propagation speed and the pressure peak, which are also affected notably by the equivalence ratio and the spatial scale of the chamber. |
| WOS关键词 | LAMINAR BURNING VELOCITIES ; PREMIXED HYDROGEN/AIR FLAME ; STOICHIOMETRIC ETHYLENE/OXYGEN ; MARKSTEIN NUMBERS ; DETONATION-WAVE ; TULIP FLAME ; AIR ; ACCELERATION ; MICRO ; DDT |
| 资助项目 | Foundation of CAS Key Laboratory of Renewable Energy[y907j91001] ; Transformational Technologies for Clean Energy and Demonstration ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA 21060102] ; National Natural Science Foundation of China[51976219] ; Foundation of State Key Laboratory of Coal Combustion[FSKLCCA1804] |
| WOS研究方向 | Thermodynamics ; Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000507819900001 |
| 出版者 | TAYLOR & FRANCIS INC |
| 资助机构 | Foundation of CAS Key Laboratory of Renewable Energy ; Transformational Technologies for Clean Energy and Demonstration ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Foundation of State Key Laboratory of Coal Combustion |
| 源URL | [http://ir.giec.ac.cn/handle/344007/26331]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Wang, Xiaohan |
| 作者单位 | 1.Chinese Acad Sci, CAS Key Lab Renewable Energy, Guangzhou, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Hang,Huo, Jiepeng,Wang, Xiaohan,et al. Flame Propagation and Combustion State Transition in a Sub-millimeter Constant-volume Space[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2020:19. |
| APA | Su, Hang,Huo, Jiepeng,Wang, Xiaohan,Jiang, Liqiao,Song, Qianshi,&Zhao, Daiqing.(2020).Flame Propagation and Combustion State Transition in a Sub-millimeter Constant-volume Space.COMBUSTION SCIENCE AND TECHNOLOGY,19. |
| MLA | Su, Hang,et al."Flame Propagation and Combustion State Transition in a Sub-millimeter Constant-volume Space".COMBUSTION SCIENCE AND TECHNOLOGY (2020):19. |
入库方式： OAI收割
来源：广州能源研究所
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