Shock tube study of kerosene ignition delay at high pressures
Shock tube study of kerosene ignition delay at high pressures
复制标题
高压煤油点火延迟的激波管研究
DOI：
10.1007/s11433-012-4723-8
复制
发表时间：
2012-06-01
影响因子：
6.4
通讯作者：
Cui JiPing
中科院分区：
文献类型：
--
作者：
Liang JinHu;Wang Su;Cui JiPing
利用加热高压激波管测量了中国3号航空煤油在反射激波后的点火延迟时间。实验条件为温度820-1500 K，压力分别为5.5、11和22 atm，当量比分别为0.5、1.0和1.5，氧气浓度为20%。考虑了煤油在激波管壁上的吸附。点火延迟时间由激发自由基OH发射的开始与压力分布相结合确定。点火延迟时间的实验结果与方程相关：tau = 3.2 × 10(-11)[煤油](0.22)[O-2](-1.09) exp（69941/RT）和tau = 4.72 × 10(-7) P (-0.88) I中心点（0.23）exp（62092/RT）。目前的测量提供了中国3号航空煤油在高压和空气样O-2浓度下的点火延迟行为。
Ignition delay times of China No. 3 aviation kerosene were measured behind reflected shock waves using a heated high-pressure shock tube. Experimental conditions covered a wider temperature range of 820-1500 K, at pressures of 5.5, 11 and 22 atm, equivalence ratios of 0.5, 1.0 and 1.5, and oxygen concentration of 20%. Adsorption of kerosene on the shock tube wall was taken into account. Ignition delay times were determined from the onset of the excited radical OH emission in conjunction with the pressure profiles. The experimental results of ignition delay time were correlated with the equations: tau = 3.2 x 10(-11)[Kerosene](0.22)[O-2](-1.09) exp(69941/RT) and tau = 4.72x10(-7) P (-0.88) I center dot (0.23) exp(62092/RT). The current measurements provide the ignition delay behavior of China No. 3 aviation kerosene at high pressures and air-like O-2 concentration.