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首页> 外文会议>AIAA SciTech Forum and Exposition >Experimental Investigation of Plasma Discharge Effect on Swirl Flames at a Scaled Siemens Dry Low Emission Burner
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Experimental Investigation of Plasma Discharge Effect on Swirl Flames at a Scaled Siemens Dry Low Emission Burner

机译：Siemens干燥低发射燃烧器旋流火焰对等离子体放电效果的实验研究

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The effect of a Rotating Gliding Arc (RGA) plasma discharge on the flame in a scaled Siemens Dry Low Emission (DLE), SGT-750, burner was experimentally investigated under atmospheric combustion conditions. The central pilot section of the burner, named RPL (rich pilot lean), was redesigned with an integrated high voltage electrode to generate an RGA. The exhaust gas was sampled and analysed in terms of CO and NOi emissions, and the CO emission data show that the RGA extends the lean blow-out limit (LBO). High-speed OH chemiluminescence imaging was employed to understand the transient behaviour of the flame in both conditions with and without RGA and also to study the process of flame re-stabilization by the assistance of the RGA. A flame kernel, initiated around the RGA channel, was observed to play an important role in the re-stabilizing process of the flame. Although the NO_x emission for the flame with RGA was found to be higher than that without RGA, it was still less than what previous data show for operating conditions with the RPL flame.
机译：在大气燃烧条件下实验研究了旋转滑动弧（RGA）等离子体放电对缩小西门子干燥低发射（DLE），SGT-750，燃烧器的影响。用集成的高压电极重新设计燃烧器的中心导频部分，命名为rpl（丰富的飞行员瘦），以产生RGA。在CO和NOI排放方面采样并分析废气，CO排放数据表明RGA延伸了贫排放限制（LBO）。使用高速OH化学发光成像来了解在具有和没有RGA的两个条件下的火焰的瞬态行为，并且还通过RGA的辅助研究火焰再稳定的过程。在RGA通道周围启动的火焰内核被观察到在火焰的重新稳定过程中起着重要作用。虽然发现具有RGA的火焰的NO_X排放量高于没有RGA的火焰，但它仍然小于以前的数据显示与RPL火焰的操作条件。

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