Experimental study of micro-scale premixed flame in quartz channels
Experimental study of micro-scale premixed flame in quartz channels
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DOI：
10.1016/j.proci.2008.06.219
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Yong Fan;Yuji Suzuki;N. Kasagi
中科院分区：
文献类型：
--
作者：
Yong Fan;Yuji Suzuki;N. Kasagi
本文介绍了（1）用于研究超薄石英通道中火焰的观测和光学测量系统的开发； (2) 室深分别为0.7mm、1.0mm和1.5mm的三个石英燃烧室中预混CH4/空气火焰传播和熄灭的观察与分析。根据高速 ICCD 相机拍摄的高分辨率火焰化学发光图像来解释和讨论火焰振荡。获得不同当量比和混合速度的可燃性极限。研究发现，加热石英壁的淬火距离可小于0.7mm，且与壁温有关。
This paper presents (1) the development of observation and optical measurement system for the investigation of flame in ultra-thin quartz channels; and (2) the observation and analysis of premixed CH4/air flame propagation and quenching in three quartz combustors with chamber depth of 0.7mm, 1.0mm and 1.5mm, respectively. Flame oscillation is interpreted and discussed according to well-resolved chemiluminescence images of the flame taken by the high-speed ICCD camera. Flammability limits are obtained for different equivalence ratios and mixture velocities. It is found that the quenching distance for heated quartz wall can be smaller than 0.7mm, and is dependant on the wall temperature.