Comparative experimental study of ethanol-air premixed laminar combustion characteristics by laser induced spark and electric spark ignition
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- 作者：Cangsu Xu ; Yangyang Hu ; Xiaolu Li ; Xuan Zhou…
- 关键词：Laser Induced Spark Ignition (LISI) ; Electric Spark Ignition (SI) ; Laminar Flame Speed ; Propagating Spherical Flame ; Ethanol
- 刊名：Korean Journal of Chemical Engineering
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：34
- 期：2
- 页码：574-579
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Industrial Chemistry/Chemical Engineering; Catalysis; Materials Science, general; Biotechnology;
- 出版者：Springer US
- ISSN：1975-7220
- 卷排序：34
文摘
An experimental study of laminar combustion characteristics of ethanol-air premixed mixtures was conducted with different ignition methods, including laser induced spark ignition (LISI) and electric spark ignition (SI) at an initial condition of 358 K temperature and 0.1MPa pressure. Flame propagation with the two different ignition methods was analyzed and discussed. The laminar flame speed was extrapolated with a nonlinear extrapolation method. Results indicate that the laminar speed of ethanol-air mixtures with LISI is faster than that with SI at lean mixtures, but slower at stoichiometric and rich mixtures. The peak values of the laminar burning velocity for SI and LISI with nonlinear extrapolation are 50.1 cm/s and 47.6 cm/s at the equivalence ratio of 1.1, respectively. Laser-induced spark ignition is able to ignite leaner ethanol-air mixtures.