水中油滴型エマルジョン液滴の加熱面上での蒸発に関する研究(熱工学,内燃機関,動力など)

概要

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The evaporation characteristics of an emulsion droplet of Oil-in-Water (O/W) type have been conducted experimentally. The evaporation time per initial surface area of droplet τ is used to estimate the evaporation characteristics of different diameter droplets and to compare a water droplet and an emulsion droplet. As the results, τ of an O/W emulsion droplet is shorter than a water droplet in the Leidenfrost film boiling regime. The four evaporation modes of O/W type emulsion droplets were observed and these depended on the mixing ratio of water and oil G_s and hot surface temperature T_w. Increasing G_s increases the Leidenfrost temperature of the emulsion droplet which is used to die-cast releasing agent. The micro explosion which occurs during the Leidenfrost film boiling were also observed when T_w was higher than 250℃.
一般社団法人日本機械学会の論文
2004-12-25