1. 西安科技大学机械工程学院,西安,710054
2. 西安交通大学能源与动力工程学院,西安,710049
网络首发:2014-01-10,
纸质出版:2014
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魏若男 1, 2, 周蓉芳 2, 等. 双电极点火时间间隔对天然气-空气预混合气层流燃烧的影响[J]. 西安交通大学学报, 2014,48(1):7-12.
Effects of Dual Electrode Ignition Time Interval on Laminar Burning of Nature Gas-Air Premixed Mixtures[J]. 2014, 48(1): 7-12.
魏若男 1, 2, 周蓉芳 2, 等. 双电极点火时间间隔对天然气-空气预混合气层流燃烧的影响[J]. 西安交通大学学报, 2014,48(1):7-12. DOI: 10.7652/xjtuxb201401002.
Effects of Dual Electrode Ignition Time Interval on Laminar Burning of Nature Gas-Air Premixed Mixtures[J]. 2014, 48(1): 7-12. DOI: 10.7652/xjtuxb201401002.
在定容燃烧弹中对天然气-空气预混合气双电极点火进行了研究
分析了双电极在不同空燃比和预混压力下的4种点火时间间隔对混合气燃烧特性的影响。结果表明:增加点火时间间隔可以促进燃烧
加速火焰传播
使容弹内燃烧压力峰值、已燃区工质温度峰值略有上升
瞬时放热率峰值升高
各峰值位置提前
火焰发展期和快速燃烧期缩短
在稀薄燃烧或预混压力较小等不稳定着火、燃烧的情况下这种规律更显著
点火间隔为2 ms时各参数变化最为明显; 点火间隔为2 ms
过量空气系数λ为1.3、预混压力为100 kPa和λ为1.0、预混压力为40 kPa时
双电极间隔点火的压力峰值出现时间比同时点火分别提前了45 ms和12 ms
温度峰值出现时间分别提前了39.8 ms和11.8 ms
瞬时放热率峰值分别增加了33.3%和71.2%
且峰值出现时间分别提前了32.3 ms和19.8 ms
火焰发展期分别缩短了14.6 ms和12 ms
快速燃烧期分别缩短了16.6 ms和9.8 ms。
Engine dual electrode ignition was studied in a constant bomb
and the relationship between the time interval of the dual electrode ignition and the combustion characteristic parameters of nature gas-air premixed gas was analyzed. The results show that increasing the dual electrode ignition time interval would promote the combustion
accelerate flame propagation
increase the bomb combustion peak pressure and peak temperature of burned zone slightly
increase the peak value of instantaneous heat release rate significantly
advance each peak position significantly
and shorten the flame development period and the rapid combustion period. This was clearer under lean burning or unstable combustion conditions due to low premixed pressure. The combustion parameters at the ignition interval of 2 ms changed most obviously. When the time interval of dual electrode ignition was 2 ms
λ was 1.3
the premixed pressure was 100 kPa and λ was 1
the premixed pressure was 40 kPa
compared with those of the simultaneous ignition following resultsare respectively obtained: the dual electrode interval ignition peak pressure positions occurred 45 ms and 12 ms in advance; the temperature peak positions occurred 39.8 ms and 11.8 ms in advance; the peak values of the instantaneous heat release rate increased by 33.3% and 71.2% and the peak positions occurred 32.3 ms and 19.8 ms in advance; the flame development durations decreased by 14.6 ms and 12 ms
and the rapid combustion duration dropped by 16.6 ms and 9.8 ms.
蒋德明, 陈长佑, 杨嘉林, 等. 高等车用内燃机原理[M]. 西安: 西安交通大学出版社, 2006: 88-129.
ALTIN I, SEZER I, BILGIN A. Effects of the stroke/ bore ratio on the performance parameters of a dual-spark-ignition(DSI)engine[J]. Energy and Fuels, 2009, 23(4): 1825-1831.
夏怀成, 安子军, 孙泽, 等. 双火花塞发动机性能的仿真分析[J]. 机械设计, 2012, 29(5): 76-79.
XIA Huaicheng, AN Zijun, SUN Ze, et al. Simulation analysis of dual-spark plug engine performance[J]. Journal of Machine Design, 2012, 29(5): 76-79.
曲大为, 李君, 高莹, 等. 点火模式对增压稀燃LPG发动机燃烧特性的影响[J]. 汽车工程, 2011, 33(6): 477-481.
QU Dawei, LI Jun, GAO Ying, et al. Effects of different ignition modes on the combustion characteristics of a turbocharging lean burn LPG engine[J]. Automotive Engineering, 2011, 33(6): 477-481.
胡春明, 刘娜, 宋玺娟, 等. 电喷汽油机冷起动及冷态怠速的排放控制[J]. 天津大学学报, 2008, 41(5): 576-582.
HU Chunming, LIU Na, SONG Xijuan, et al. Emissions control of cold starting and idling of gasoline engines with EFI[J]. Journal of Tianjin University, 2008, 41(5): 576-582.
邵千钧, 何文华, 卫忠星, 等. 多次点火提高LPG发动机点火可靠性的研究[J]. 内燃机工程, 2005, 26(4): 59-62.
SHAO Qianjun, HE Wenhua, WEI Zhongxing, et al. Study of multi-time ignition improving ignition reliability of LPG-fueled engine[J]. Chinese Internal Combustion Engine, 2005, 26(4): 59-62.
HUANG Z H, ZHANG Y, ZENG K, et al. Natural gas-hydrogen-air premixed mixture combustion with a constant volume bomb[J]. Energy and Fuels, 2007, 21(2): 692-698.
马凡华. 预混湍流燃烧的基础研究[D]. 西安: 西安交通大学, 1996.
蒋德明. 火花点火发动机的燃烧[M]. 西安: 西安交通大学出版社, 2002.
蒋德明. 内燃机燃烧与排放学[M]. 西安: 西安交通大学出版社, 2001: 262-294.
张猛,王金华,谢永亮,等.CH4/H2/air预混湍流火焰前锋面结构探测.2013,47(11):14-18.[doi:10.7652/xjtuxb2013 11003]
王金华,张猛,谢永亮,等.合成气纯氧高压预混湍流火焰结构研究.2013,47(10):87-90.[doi:10.7652/xjtuxb201310 015]
孟祥文,杨星,康婵,等.直流电场对预混CH4/O2/N2火焰传播特性影响的试验研究.2013,47(7):13-17.[doi:10.7652/xjtuxb201307003]
李东昌,汪映,孟庆斌,等.二甲醚预混比对预混压燃发动机性能影响的试验研究.2013,47(3):48-52.[doi:10.7652/xjtuxb201303009]
唐安东,孟祥文,周蓉芳,等.非均匀电场对火焰传播速率的影响.2012,46(9):16-20.[doi:10.7652/xjtuxb201209004]
周蓉芳,魏若男,周竹杰,等.点火能量对天然气空气预混合气层流燃烧的影响.2012,46(7):21-25.[doi:10.7652/xjtuxb201207005]
汪映,郭振祥,周杰.预混充量压缩着火和直接喷射对发动机性能影响研究.2011,45(3):44-47.[doi:10.7652/xjtuxb 201103008]
冉帆,王锡斌,朱瑞军,等.甲醇空气预混层流燃烧的简化化学反应动力学机理.2009,43(9):27-31.[doi:10.7652/xjtuxb200909007]
巩静,金春,姜雪,等.高辛烷值燃料-空气预混层流燃烧特性研究.2009,43(5):26-30.[doi:10.7652/xjtuxb200905006]
李本正,宫艳峰,刘圣滑,等.甲醇缸内直喷发动机的燃烧特性.2008,42(11):1372-1376.[doi:10.7652/xjtuxb200811 012]
汪映,李维,朱威,等.燃烧与供油系统参数对二甲醚发动机热效率的影响.2008,42(5):528-531.[doi:10.7652/xjtuxb 200805004]
陈亘,陈朝阳,黄佐华,等.二甲醚-氢气-空气混合气预混燃烧的实验研究.2008,42(5):542-545.[doi:10.7652/xjtuxb 200805007]
王利军,宋睿智,邹洪波,等.甲醇柴油双燃料发动机甲醇掺烧比例的正交试验研究.2007,41(11):1284-1287.[doi:10.7652/xjtuxb200711008]
王利军,邹洪波,宋睿智,等.引燃油量对甲醇柴油双燃料发动机燃烧特性的影响.2007,41(5):517-520.[doi:10.7652/xjtuxb200705003]
任泰安,张长富,蒋庄德.微内燃机点火和燃烧中微尺寸效应的研究.2007,41(7):776-779.[doi:10.7652/xjtuxb200707 005]
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