摘要：Ionic liquids (ILs) have been proved as novel excellent solvents in gas separation and so on. Due to its excellent heat and mass transfer performance, falling film evaporator is often used in the applications of high viscosity systems and has the potential to be the regeneration equipment for IL-based systems. However, there are few reports on the falling film evaporation of ILs system. The relevant experimental data are scarce. Moreover, the traditional models cannot predict the hydrodynamics of ILs well due to the specific properties of ILs. In this study, an experimental method for studying the ILs falling film flow was established. The falling film hydrodynamics of three ILs (BmimBF4, BmimPF6, OmimBF4), including film flow pattern and film thickness were investigated. The effects of streamwise flow distance and the physical property of ILs on the hydrodynamics were analyzed. A calculation model and a dimensionless empirical model of ILs film thickness were established based on experimental data. The average relative deviation of new dimensionless model is 2.83%, which is much lower than that of Nusselt model (13.48%). The measurement of key parameters and the establishment of models provide experiment data and basis for designing the falling film evaporator of IL-based systems. ? 2021

ISSN号：0255-2701

卷、期、页：v 170,

发表日期：2022-01-01

影响因子：4.237300

期刊分区（SCI为中科院分区）：三区

收录情况：EI（工程索引）

发表期刊名称：Chemical Engineering and Processing - Process Intensification

参与作者：Hu, Zongyuan,Dong, Haifeng,Zeng, Shaojuan,Bai, Lu,Zhang, Xiangping

通讯作者：王俊男

第一作者：王彧斐

论文类型：期刊论文

论文概要：王俊男,Hu, Zongyuan,Dong, Haifeng,Zeng, Shaojuan,Bai, Lu,Zhang, Xiangping,王彧斐，Experimental study on hydrodynamics of ionic liquids systems in falling film evaporator，Chemical Engineering and Processing - Process Intensification，2022，v 170,

论文题目：Experimental study on hydrodynamics of ionic liquids systems in falling film evaporator