Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Flame Propagation and Combustion State Transition in a Sub-millimeter Constant-volume Space | |
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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| 2020-01-18 | |
| Source Publication | COMBUSTION SCIENCE AND TECHNOLOGY
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| ISSN | 0010-2202 |
| Pages | 19 |
| Corresponding Author | Wang, Xiaohan(wangxh@ms.giec.ac.cn) |
| Abstract | 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. |
| Keyword | Micro-combustion constant-volume chamber flame propagation instability deflagration |
| DOI | 10.1080/00102202.2020.1716340 |
| WOS Keyword | LAMINAR BURNING VELOCITIES ; PREMIXED HYDROGEN/AIR FLAME ; STOICHIOMETRIC ETHYLENE/OXYGEN ; MARKSTEIN NUMBERS ; DETONATION-WAVE ; TULIP FLAME ; AIR ; ACCELERATION ; MICRO ; DDT |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Thermodynamics ; Energy & Fuels ; Engineering |
| Funding Organization | 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 |
| WOS Subject | Thermodynamics ; Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Chemical |
| WOS ID | WOS:000507819900001 |
| Publisher | TAYLOR & FRANCIS INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/26332 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Wang, Xiaohan |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Renewable Energy, Guangzhou, 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 |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation 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. |
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