|本期目录/Table of Contents|

[1]魏旭星,贾伟东,侯俊才,等.正/负电场对预混稀燃火焰影响的对比研究[J].西安交通大学学报,2017,51(09):39-43.[doi:10.7652/xjtuxb201709006]
 WEI Xuxing,JIA Weidong,HOU Juncai,et al.Comparative Research on Effect of Positive/Negative Electric Field on Premixed Lean Burn Flame[J].Journal of Xi'an Jiaotong University,2017,51(09):39-43.[doi:10.7652/xjtuxb201709006]
点击复制

正/负电场对预混稀燃火焰影响的对比研究(PDF)

《西安交通大学学报》[ISSN:0253-987X/CN:61-1069/T]

卷:
51
期数:
2017年第09期
页码:
39-43
栏目:
出版日期:
2017-09-10

文章信息/Info

Title:
Comparative Research on Effect of Positive/Negative Electric Field on
Premixed Lean Burn Flame
作者:
魏旭星贾伟东侯俊才李一鸣李超吴筱敏
西安交通大学能源与动力工程学院,710049,西安
Author(s):
WEI XuxingJIA WeidongHOU JuncaiLI YimingLI ChaoWU Xiaomin
School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
关键词:
预混稀燃火焰电场助燃火焰传播速度定容燃烧弹
Keywords:
premixed lean burn flame electric field assisted combustion flame propagation
velocity
constant volume combustion bomb
分类号:
TK431
DOI:
10.7652/xjtuxb201709006
摘要:
为了比较正/负电场的助燃效果,在室温298 K、气压100 kPa条件下,通过对定容燃烧弹内的网状电极分别加载正直流电压和负直流电压,研究了正/负电场助燃机理,由此分析了2种电压对甲烷/空气预混火焰形状、火焰传播速度以及燃烧压力等参数的影响。结果显示:正/负直流电场对过量空气系数分别为12、16的预混稀燃火焰均有促进作用,平均火焰传播速度在施加电压的电极方向得到增强;在施加电场后,相同过量空气系数下的火焰燃烧峰值压力增大,且随着电压幅值绝对值的增大,峰值压力到达时间相应缩短;在相同的电压幅值下,正电场的促进效果优于负电场。该结果对电场辅助燃烧的进一步研究具有指导意义。
Abstract:
To compare the effects of positive and negative electric fields, at room temperature 298 K and under pressure 100 kPa, a mesh electrode is loaded with positive DC and negative DC voltage in constant volume combustion bomb to analyze the different voltage influences on the methane/air premixed flame shape, flame propagation velocity, combustion pressure and other parameters. The results show that the positive/negative DC field promotes premixed lean combustion flame with excess air coefficient 12/16, and the average flame propagation speed is enhanced in the direction of the electrode voltage. When the electric field is applied, the peak combustion pressure increases under the same excess air coefficient, and with the increasing absolute value of the voltage amplitude, the arrival time of the peak pressure is reduced accordingly. For the same voltage magnitude, the positive electric field effect is always better than that of negative electric field.

参考文献/References:

[1]WEINBERGF J. Advanced combustion method [M]. New York, USA: Academic Press, 1986: 331332.
[2]VEGA E V, LEE K Y. An experimental study on laminar CH4/O2/N2 premixed flames under an electric field [J]. J Mech Sci Technol, 2008, 22(2): 312319.
[3]HU J, RIVIN B, SHER E. The effect of an electric field on the shape of coflowing and candle type methaneair flame [J]. Experimental Thermal and Fluid Science, 2000, 21(1/2/3): 124133.
[4]MARCUM S D, GANGULY B N. Electric field induced flame speed modification [J]. Combustion and Flame, 2005, 143(1/2): 2736.
[5]KIM M K, CHUNG S H, KIM H H. Effect of electric fields on the stabilization of premixed laminar Bunsen flames at low AC frequency: biionic wind effect [J]. Combustion and Flame, 2012, 153(3): 11511159.
[6]DUAN H, WU X M, SUN T Q, et al. Effects of electric field intensity and distribution on flame propagation speed of CH4/O2/N2 flames [J]. Fuels, 2015, 158: 807815.
[7]LEWIS B, ELBE G V. Determination of the speed of flames and the temperature distribution in a spherical bomb from timepressure explosion records [J]. Journal of Chemical Physics, 1934, 2(5): 283290.
[8]SELLE A, RIEDEL U, FAUCHAIS P, et al. Heat and mass transfer under plasma conditions [M]. New York, USA: Academy of Sciences, 1999: 7280.
[9]ALTENDORFNER F, KUHL J, ZIGAN L. Study of the influence of electric fields on flames using planar LIF and PIV techniques [J]. Proceedings of the Combustion Institute, 2011, 33(2): 31953201.
[10]LAWTON J, WEINBERG F J. Electrical aspects of combustion [M]. Oxford, UK: Clarendon Press, 1969: 70.
[11]van den BOOM J, KONNOV A, VERHASSELT A, et al. The effect of a DC electric field on the laminar burning velocity of premixed methane/air flames [J]. Proceedings of the Combustion Institute, 2009, 32(1): 12371244.
[12]BISETTI F, MORSLI M E. Calculation and analysis of the mobility and diffusion coefficient of thermal electrons in methane/air premixed flames [J]. Combustion and Flame, 2012, 159(12): 35183521.
[13]FIALKOV A B. Investigations on ions in flames [J]. Progress in Energy & Combustion Science, 1997, 23: 399528.

备注/Memo

备注/Memo:
国家自然科学基金资助项目(51476126)
更新日期/Last Update: