文献类型：期刊文献

英文题名：Bubble Interfacial Area in a Swirling Contactor: Experiments and Computational Fluid Dynamics Simulations

作者：Xu, Xiao[1];Gong, Chunkai[1];Wang, Shuo[1];Yang, Qiang[1];Xi, Zhenhao[2]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Key Lab Multiphase Mat Chem Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：47

期号：1

起止页码：68

外文期刊名：CHEMICAL ENGINEERING & TECHNOLOGY

收录：;EI(收录号：20233714729444);WOS:【SCI-EXPANDED(收录号:WOS:001065551900001)】；

基金：The authors wish to express their sincere gratitude to the National Natural Science Foundation of China (52025103, 21908057, 22178099) for financial support. This project was also sponsored by the Chenguang Program supported by Shanghai Education Development Foundation and Shanghai Municipal Education Commission (20CG39).

语种：英文

外文关键词：Bubble size; Gas holdup; Interfacial area; Population balance model; Swirling flow

摘要：The bubble size, gas holdup, and interfacial area in a swirling contactor were investigated through experiments and simulations. The interfacial area was obtained for liquids and gases with Reynolds numbers Rel and Reg, respectively. The contactor was divided into twelve subregions. Rel was negatively related to bubble size, gas holdup, and interfacial area, whereas Reg was positively associated. The maximum bubble interfacial area for the entire swirling contactor was 196.3 m-1 with a gas-liquid ratio of 0.022. There is a trade-off between centrifugal acceleration and bubble size for interfacial area. Swirling flows can be applied for gas-liquid mass transfer process intensification. Experiments and simulations were conducted to investigate the bubble size, gas holdup, and interfacial area in a swirling contactor which was divided into twelve subregions. Bubble breakup and coalescence processes between all bubble size classes were considered using appropriate models. image