J0801-3-6 分光学実験による前炎反応解析及びノッキング現象の可視化(次世代燃料と新しい燃焼技術,エンジン,動カシステム(3))

概要

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The progress of flame propagation and the autoignition behavior of the end gas at the time of knocking in a spark-ignition engine were examined on the basis of emission and absorption spectroscopic measurements and visualizations obtained by high-speed photography. The test fuels used were a 30 RON primary reference fuel and n-heptane (0 RON) that was conducive to the occurrence of low-temperature reactions. Emission and absorption spectroscopic techniques were applied to investigate the behavior of formaldehyde (HCHO) and OH radicals in the interval from the occurrence of a cool flame to autoignition. The results showed the occurrence of cool-flame reactions along with light absorption and faint light emission ascribable to HCHO in the end gas prior to knocking.
社団法人日本機械学会の論文
2009-09-12