| Laser Diagnostics of Combustion Enhancement on a CH4/Air Bunsen Flame by Dielectric Barrier Discharge | |
Zhang SH(张少华) ; Yu XL(余西龙); Chen LH(陈立红); Zhang XY(张新宇); Yu, XL (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
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| Source Publication | CHINESE PHYSICS LETTERS
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| 2013-08-01 | |
| Volume | 30Issue:8Pages:085203/1-085203/4 |
| ISSN | 0256-307X |
| Abstract | We investigate plasma-assisted combustion for premixed CH4/air Bunsen flames. Dielectric barrier discharge (DBD) is employed to produce non-equilibrium plasma for combustion enhancement. The transient planar laser induced fluorescence (PLIF) technique of CH and OH radicals is used to image reaction zones for enhancement measurement, and the emission spectra of the Bunsen flame are monitored to explore the kinetics mechanism. From the drift of radicals in PLIF images, the quantitative enhancement of plasma on the flame velocities of premixed methane/air flames is experimentally measured, and the data show that the flame velocities are increased by at least 15% in the presented equivalence ratio range. Furthermore, the well analyzed emission spectra of the Bunsen flame (300–800 nm) with/without DBD reveal that the emissions as well as the concentrations of the crucial radicals (like C2, CH, OH etc.) in combustion all are intensified greatly by the discharge. In addition, the appearance of excited spectral bands of N2 and N+2 during discharge indicates that the premixed gas is also heated and ionized partially by the DBD. |
| Keyword | Premixed Flames Plasma Methane Mixtures Planar Laser Induced Fluorescence Laser Diagnostics Flame Velocities Emission Spectra Dielectric Barrier Discharge |
| Subject Area | 空气动力学 |
| DOI | 10.1088/0256-307X/30/8/085203 |
| URL | 查看原文 |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:000323733900029 |
| WOS Keyword | PREMIXED FLAMES ; PLASMA ; METHANE ; MIXTURES ; PRESSURE ; JET |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary |
| Funding Organization | National Natural Science Foundation of China(11102215 ; National Natural Science Foundation of China [11102215, 91216101] ; 91216101) |
| Department | LHD高温气流激光诊断 |
| Classification | Q3 |
| Ranking | True |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/47447 |
| Collection | 高温气体动力学国家重点实验室 |
| Corresponding Author | Yu, XL (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| Affiliation | Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang SH,Yu XL,Chen LH,et al. Laser Diagnostics of Combustion Enhancement on a CH4/Air Bunsen Flame by Dielectric Barrier Discharge[J]. CHINESE PHYSICS LETTERS,2013,30,8,:085203/1-085203/4. |
| APA | Zhang SH,Yu XL,Chen LH,Zhang XY,&Yu, XL .(2013).Laser Diagnostics of Combustion Enhancement on a CH4/Air Bunsen Flame by Dielectric Barrier Discharge.CHINESE PHYSICS LETTERS,30(8),085203/1-085203/4. |
| MLA | Zhang SH,et al."Laser Diagnostics of Combustion Enhancement on a CH4/Air Bunsen Flame by Dielectric Barrier Discharge".CHINESE PHYSICS LETTERS 30.8(2013):085203/1-085203/4. |
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| IMCAS-J2013-211.pdf（1970KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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