Experimental study of hydrogen/air premixed flame propagation in a closed channel with inhibitions for safety consideration
Experimental study of hydrogen/air premixed flame propagation in a closed channel with inhibitions for safety consideration
复制标题
出于安全考虑的封闭通道内氢气/空气预混火焰传播的实验研究
DOI：
10.1016/j.ijhydene.2019.04.032
复制
发表时间：
2019-08
影响因子：
7.2
通讯作者：
Xiu Guangli
中科院分区：
文献类型：
--
作者：
Zhang Chao;Wen Jennifer;Shen Xiaobo;Xiu Guangli
为了研究n2和CO2对火焰传播特性的抑制作用，对密闭矩形通道中氢气/空气预混火焰的传播进行了实验研究。采用纹影系统和压力传感器捕捉通道内火焰形状的演变和压力的变化。研究发现n2和co2对氢/空气预混火焰均有明显的抑制作用。与N2相比，co2具有更明显的抑制作用，这从热力学和动力学角度进行了解释。在所有的火焰中，都观察到经典的郁金香形状。在不同的阻垢剂浓度下，火焰在经典的郁金香反转后呈现出三种类型的变形。通过简单的理论分析表明，火焰与壁面第一次接触时产生的压力波对火焰变形的影响取决于其与火焰前缘的相遇力矩。最重要的是，会议时刻总是在郁金香倒转开始之后，这表明压力波对这一特征现象的非主导作用。
An experimental study of hydrogen/air premixed flame propagation in a closed rectangular channel with the inhibitions (N2or CO2) was conducted to investigate the inhibiting effect of N2and CO2on the flame properties during its propagation. Both Schlieren system and the pressure sensor were used to capture the evolution of flame shape and pressure changes in the channel. It was found that both N2and CO2have considerable inhibiting effect on hydrogen/air premixed flames. Compared with N2, CO2has more prominent inhibition, which has been interpreted from thermal and kinetic standpoints. In all the flames, the classic tulip shape was observed. With different inhibitor concentration, the flame demonstrated three types of deformation after the classic tulip inversion. A simple theoretical analysis has also been conducted to indicate that the pressure wave generated upon the first flame-wall contact can affect the flame deformation depending on its meeting moment with the flame front. Most importantly, the meeting moment is always behind the start of tulip inversion, which suggests the non-dominant role of pressure wave on this featured phenomenon.
登录
查看更多内容
气液两相介质对瓦斯爆炸协同抑制作用的实验研究
DOI：
10.1016/j.jlp.2016.12.008
发表时间：
2017-09-01
影响因子：
3.5
作者：
Pei, Bei;Yu, Minggao;Zhu, Xinna
通讯作者：
Zhu, Xinna
C2H4/N2O混合物稀释爆炸压力动力学实验研究
影响因子：
6.4
作者：
Shen Xiaobo;Zhang Ningning;Shi Xuemei;Cheng Xianghua
通讯作者：
Cheng Xianghua
影响因子：
1.3
作者：
N. S. Belyakov;V. Babushok;S. Minaev
通讯作者：
N. S. Belyakov;V. Babushok;S. Minaev
影响因子：
3.4
作者：
T. Sikes;O. Mathieu;W. Kulatilaka;M. Mannan;E. Petersen
通讯作者：
T. Sikes;O. Mathieu;W. Kulatilaka;M. Mannan;E. Petersen
DOI：
10.1016/j.jlp.2009.12.002
发表时间：
2010-03
影响因子：
3.5
作者：
V. V. Azatyan-V.;Y. Shebeko;A. Shebeko
通讯作者：
V. V. Azatyan-V.;Y. Shebeko;A. Shebeko