液粒の蒸発および燃焼に関する研究 : 第3報燃焼

概要

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The work described here is an attempt made to investigate the combustion process of a single fuel droplet hanged by a quartz fiber by means of recording on motion pictures, for fifteen liquid fuels namely, methylalcohol, ethylalcohol, benzene, toluene, nitrobenzene, cyclohexane, n-heptane, iso-octane, cetane, α-methylnaphthalene, motor gasoline, kerosine, diesel light oil, heavy oil A, and heavy oil B, as a succession to the previous study on the evaporation of a single liquid droplet. The "coefficients of combustion velocity of droplet" for various kinds of fuels were measured, The mechanism of the ignition of the droplet was made clear. Heavy oil droplet burns with frothing and splashing of burning viscoue residue which in turn produce secondary splashes. It was made clear that such frothing and splashes were caused by the bubbles and their bursting produced by the thermal cracking, according to the corresponding experiments in the high temperature nitrogen in which they were also observed.
一般社団法人日本機械学会の論文
1954-12-20