様々な雰囲気温度におけるイソオクタン-エタノール混合燃料の液滴蒸発特性

抄録

We conducted the single droplet evaporation experiments for iso-octane/ethanol blended fuel to research the effect of adding ethanol on single droplet evaporation characteristics of iso-octane. To investigate the effect of blending ethanol, we compared experimental results of iso-octane/ethanol blended fuel and iso-octane/nonane blended fuel. From experimental results, we obtained three findings indicated below. First, molecular clusters may be formed in iso-octane/ethanol blended fuel, and molecular cluster may make intermolecular force stronger. Second, the droplet lifetime of 50wt% iso-octane + 50wt% ethanol blended fuel was almost the same as that of 25wt% iso-octane + 75wt% ethanol blended fuel and ethanol. Third, the instantaneous evaporation coefficient of 50wt% iso-octane + 50wt% ethanol blended fuel and that of 25wt% iso-octane + 75wt% ethanol blended fuel show almost constant like a single component droplet.