Stabilization of a Premixed Methane–Air Flame Using Nanosecond Repetitively Pulsed Discharges
Stabilization of a Premixed Methane–Air Flame Using Nanosecond Repetitively Pulsed Discharges
复制标题
使用纳秒重复脉冲放电稳定预混合甲烷-空气火焰
DOI：
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发表时间：
2011
影响因子：
1.5
通讯作者：
Christophe O. Laux
中科院分区：
文献类型：
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作者：
Quang Lam L. Pham;D. Lacoste;Christophe O. Laux
纳秒重复脉冲 (NRP) 放电已被用于广泛的应用，例如等离子体辅助燃烧。在本文中，我们使用由约 10 kV 的电脉冲在 10 ns 期间以 30 kHz 的频率产生的 NRP 等离子体放电来稳定大气压力下的贫预混合甲烷/空气火焰。我们在此表明，仅使用少量能量（等离子体功率代表火焰功率的不到 1%），再循环区中产生的等离子体即可稳定稀薄火焰，并将稀薄熄灭极限降低约 10%-15%。
Nanosecond repetitively pulsed (NRP) discharges have been used for a broad range of applications, such as plasma-assisted combustion. In this paper, we use an NRP plasma discharge produced by electric pulses of about 10 kV during 10 ns at a frequency of 30 kHz to stabilize a lean premixed methane/air flame at atmospheric pressure. We show here that the plasma created in the recirculation zone allows the stabilization of the lean flame and a reduction of the lean extinction limit by about 10%-15%, using only a small amount of energy (the plasma power represents less than 1% of the power of the flame).