在液相的质传上的 Marangoni 传送对流和它的影响被调查。Marangoni 传送对流用激光 Schlieren 技术被设想。有序的多角形的传送对流模式和随机的界面的骚乱被观察。质传率上的效果 ofMarangoni 传送对流被使放出学习从在掉落的电影的水溶液的乙醇。试验性的结果证明那 Marangoni 传送对流能加快表面更新并且在液相提高质传率。液体传质系数能被差不多 3 褶层提高。相应实验关联以质传改进因素被给。在考虑 Marangonieffect,而且,常规质传关联被修改。关联和试验性的数据预言的价值之间的差别在± 8 .2% 以内,平均差别是 4.2% 。
Marangoni convection and its influence on the mass transter in the liquid phase were investigated. Marangoni convection was visualized using laser Schlieren technique, Orderly polygonal convection patterns and random interfacial turbulence were observed. The effect of Marangoni convection on the mass transfer rate was studied by desorbing ethanol from aqneous solution in the falling film. The experimental results show that Marangoni convection can speed up the surface real and enhance the mass transfer rate in the liquid phase.The liquid mass transfer coefficient can be enhanced by as much as 3 folds. The corresponding empirical correlations are given in terms of the mass transfer enhancement factor. Furthermore, in considering the Marangoni effect, the conventional mass transfer correlation was modified, The differences between the values predicted by the correlation and the experimental data are within ±8.2% and the average difference is 4.2%.