Evaporation of Multicomponent Droplets
Evaporation of Multicomponent Droplets
复制标题
多组分液滴的蒸发
DOI：
10.1080/02786829708965470
复制
发表时间：
1997
影响因子：
5.2
通讯作者：
E. Davis
中科院分区：
文献类型：
--
作者：
J. Widmann;E. Davis
摘要采用电动力悬浮和光散射测量方法研究了直径为10 /am的多组分液滴的蒸发过程。对具有代表性的柴油多组分液滴和二元液滴进行了研究。该二元体系由卤代化合物1-碘烷和1-溴十四烷组成，模型燃料滴由十六烷、1-甲基萘、顺式和反式十氢萘（十氢化萘）组成。探讨了添加剂过氧化叔丁基对多组分体系蒸发的影响，并报道了添加剂硝酸己基乙酯的一些数据。添加剂对蒸发速率的影响可以忽略不计。利用UNIFAC （Reid et al., 1987）液相活度系数模型，将测量的蒸发速率与基于扩散控制蒸发的理论分析进行比较。模型与实验结果吻合较好。
ABSTRACT The evaporation of multicomponent drops having diameters on the order 10 /am was investigated using electrodynamic levitation and light-scattering measurements. Multicomponent drops representative of diesel fuels and binary drops were studied. The binary system consisted of the halogenated compounds 1-iododocane and 1-bromotetradecane, and the model fuel drops were composed of hexadecane, 1-methyl naphthalene, and cis- and trans-decahydronaphthalene (decalin). The effect of an additive, tertiary butyl peroxide, on the evaporation of the multicomponent system was explored, and some data are reported for the additive ethyl hexyl nitrate. The additives were found to have negligible effect on the evaporation rate. The measured evaporation rates are compared with a theoretical analysis based upon diffusion-controlled evaporation using the UNIFAC (Reid et al., 1987) model for liquid phase activity coefficients. The model was found to be in good agreement with experiment.