314 エマルジョン液滴燃焼時の高温壁面上ミクロ爆発に及ぼす含水率の影響(OS-2 液滴の着火・燃焼)

概要

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An experimental study has been carried out to reveal the statistical characteristics of the onset of micro-explosion of an emulsion droplet burning on a hot surface. The oil-in-water emulsion consisting of base fuel and water doped with small amount of surfactant is tested after degasification. The surface temperature is 700 K. Measurements of the waiting time for the onset of micro-explosion and droplet temperature are made for various water contents. The results show that the distribution function of the waiting time is correlated with the Weibull distribution of the wear-out type. The waiting time decreases with an increase in water content. An empirical formula is proposed for the rate of micro-explosion as a function of droplet temperature and volume of water layer.
社団法人日本機械学会の論文
2004-03-17