Transient change in the shape of premixed burner flame with the superposition of pulsed dielectric barrier discharge
Transient change in the shape of premixed burner flame with the superposition of pulsed dielectric barrier discharge
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DOI：
10.7567/jjap.55.086201
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发表时间：
2016-06
影响因子：
1.5
通讯作者：
K. Zaima;K. Sasaki
中科院分区：
文献类型：
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作者：
K. Zaima;K. Sasaki
我们研究了预混燃烧器火焰中叠加脉冲介质阻挡放电 (DBD) 的瞬态现象。 DBD的叠加使火焰长度缩短，表明燃烧化学反应在等离子体的帮助下被激活。此外，我们还观察到未燃烧气体区域顶部位置的调制以及OH光发射强度轴向分布中局部最小值的形成。这些实验结果揭示了燃烧化学反应速率的振荡是对脉冲 DBD 激活的响应。振荡周期为0.18~0.2 ms，可以理解为等离子体辅助燃烧反应系统的特征频率。
We investigated the transient phenomena in a premixed burner flame with the superposition of a pulsed dielectric barrier discharge (DBD). The length of the flame was shortened by the superposition of DBD, indicating the activation of combustion chemical reactions with the help of the plasma. In addition, we observed the modulation of the top position of the unburned gas region and the formations of local minimums in the axial distribution of the optical emission intensity of OH. These experimental results reveal the oscillation of the rates of combustion chemical reactions as a response to the activation by pulsed DBD. The cycle of the oscillation was 0.18–0.2 ms, which could be understood as the eigenfrequency of the plasma-assisted combustion reaction system.