高圧雰囲気中における溶解性二成分燃料液滴の壁面蒸発(熱工学,内燃機関,動力など)

概要

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An experimental study has been made of the evaporation of a droplet of miscible binary component fuel on a hot surface in high pressure gaseous environments. Photographic observation is made to elucidate how a fuel droplet or film behaves on a hot surface and to obtain the characteristic lifetime curve at various surface temperatures. Primary attention is toward the effect of ambient pressure on the evaporation of a binary component fuel droplet as distinguished from the phenomena of a droplet of single component fuel. The results show that a maximum in the film evaporation region of the lifetime curve appears as well as a Leidenfrost point. The increase in the ambient pressure causes the lifetime curve shifted toward higher surface temperature, and the decrease in the lifetime at these points which finally tend to disappear. The increase in the initial concentration of the highly volatile base fuel results in the maximum shifted toward higher surface temperature and the Leidenfrost point toward lower surface temperature. The lifetime curve shifts toward the higher surface temperature with a decrease in the volatility of low volatile base fuel.
社団法人日本機械学会の論文
2006-05-25