Application of MW Plasma Generator for Ignition of Kerosene/Air Mixture

“…Conventional spark plug systems have several limitations including inability to ignite lean or diluted mixtures (as mixtures become leaner, they grow more difficult to ignite), localized ignition, cathode erosion. Many experimental, theoretical and numerical studies have been performed for the past years, and various ignition systems (e.g., electric discharge, microwave discharge, laser radiation) have been tested to achieve simultaneous space ignition via multiple ignition points throughout the combustion chamber to establish a high-performance ignition method [2], [3], [4], [5], [6], [7].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Microwave Streamer Discharge Ignition of Premixed Air/Fuel Mixtures

Bulat

Булат

Denissenko

et al. 2019

IEEE Trans. Plasma Sci.

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A subcritical microwave streamer discharge is used to initiate ignition of premixed air/fuel mixture. The streamer is arising on the internal surface of the dielectric tube using a passive vibrator in a single pulse regime at atmospheric pressure and temperature. The propagation speed of the combustion front in the quartz cylindrical tube filled by the air/propane mixture is analyzed experimentally. Ignition of lean fuel mixtures by a streamer has been demonstrated at atmospheric pressure. The performed studies showed that the streamer discharge, which creates a multitude of ignition points, provides practically instantaneous ignition of the mixture in the entire volume, where the streamers reach. Measurements have shown that the front velocity increases with increasing discharge length. The speed of streamer-induced combustion has been shown to be higher compared to that initiated by a spark. The combustion efficiency has also been shown to be higher when using the microwave streamer ignition.

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“…Plasma igniters are the most developed units for short term operation (up to several minutes) [4], [5], [6]. Plasma pilots and flame sustainers provide ignition and continuous flame control [7], [8], [9], [10], [11].…”

Section: Introductionmentioning

confidence: 99%