微小重力下における直流電界中での単一液滴燃焼時のすす挙動(熱工学,内燃機関,動力など)

概要

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Sooting of single droplets combustion in direct current (DC) electric fields was investigated experimentally using microgravity conditions. The ambient gas was air at atmospheric pressure and room temperature, and toluene was used as a fuel. The distance between electrodes is 50mm and applied electric voltages ranged between 0 and 6kV. Soot concentration and flame luminosity, which corresponds to soot radiation, were measured. Soot concentration was estimated using full-field extinction technique. As the applied voltage increased, the amount of soot decreased and the luminosity increased. Considering the distribution of soot concentration and luminosity, we guess changes in soot concentration and luminosity were caused by the movement of soot and its precursor and ionic wind. When applied voltage is less than 2kV the decrease in the amount of soot was outstanding, which can affect the burning rate constant.
社団法人日本機械学会の論文
2004-03-25