21110 高電圧電気放電を用いた拡散燃焼に関する実験的研究 : 放電が燃焼状態に与える影響(OS11 環境に優しいエンジン技術(3),オーガナイズドセッション)

概要

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This study proposes the new concept of diffusive combustion method which is initiated by the plasma jet ignition. The fuel is injected and is ignited by the high voltage electrical discharge. The effect of electrical discharge and igniter configuration on combustion behavior was experimentally investigated. The tests were carried with methanol as a fuel, and the combustion process was visualized by Z shape schlieren system and combustion pressure was measured with the laser type pressure measurement system. When a large orifice was used, high combustion pressure was obtained because a lot of fuel was injected immediately after the electrical discharge. However, the flame area in initial combustion was large when an orifice diameter was small. The discharge voltage hardly influenced combustion pressure and the flame growth process, when the electrical discharge energy was constant. The combustion was influenced by the orifice area and was almost regardless of cavity configuration.
一般社団法人日本機械学会の論文
2010-03-09