Laser Diagnostics of Combustion Enhancement on a CH4/Air Bunsen Flame by Dielectric Barrier Discharge

doi:10.1088/0256-307X/30/8/085203

	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.
发表期刊	CHINESE PHYSICS LETTERS
	2013-08-01
卷号	30 期号:8 页码:085203/1-085203/4
ISSN	0256-307X
摘要	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.
关键词	Premixed Flames Plasma Methane Mixtures Planar Laser Induced Fluorescence Laser Diagnostics Flame Velocities Emission Spectra Dielectric Barrier Discharge
学科领域	空气动力学
DOI	10.1088/0256-307X/30/8/085203
URL	查看原文
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000323733900029
关键词[WOS]	PREMIXED FLAMES ; PLASMA ; METHANE ; MIXTURES ; PRESSURE ; JET
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
项目资助者	National Natural Science Foundation of China(11102215 ; National Natural Science Foundation of China [11102215, 91216101] ; 91216101)
课题组名称	LHD高温气流激光诊断
论文分区	Q3
力学所作者排名	True
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/47447
专题	高温气体动力学国家重点实验室
通讯作者	Yu, XL (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
作者单位	Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 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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