層流伝ぱ火炎による二成分燃料液滴の着火

概要

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An experimental study has been made of the ignition process of a binary fuel droplet subjected to a laminar flat flame propagating through a lean homogeneous propane-air mixture at constant pressure. A combustion chamber made of a transparent duct was installed with spark electrodes, a fine quartz fiber to suspend a fuel droplet and a shutter to allow the burned gas to flow out. A high speed video camera was provided for the photographic observation of the droplet ignited by the propagating flame and for the determination of the ignition delay. The ignition delay showed a peak as a function of initial droplet diameter and the diameter at the peak ignition delay decreased with an increase in the n-hexane or the benzene volume concentration. Also evident was that the ignition delay decrased largely with an increase in the n-hexane or the benzene volume concentration.
一般社団法人日本機械学会の論文
2000-07-25