文献类型：期刊文献

英文题名：Experimental and computational fluid dynamics modeling of double-partition divided-wall column for flow hydrodynamics and wall heat transfer characteristics

作者：Shen, Yichao[1];Zhang, Tao[1];Pan, Hui[1,2];Ling, Hao[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Shanghai Univ Elect Power, Coll Environm & Chem Engn, Shanghai Key Lab Mat Protect & Adv Mat Elect Powe, Shanghai 200090, Peoples R China

年份：2022

卷号：68

期号：11

外文期刊名：AICHE JOURNAL

收录：;EI(收录号：20223412609444);WOS:【SCI-EXPANDED(收录号:WOS:000851555800001)】；

基金：National Natural Science Foundation of China, Grant/Award Number: 21908056; Science and Technology Commission of Shanghai Municipality, Grant/Award Number: 19DZ2271100; Shanghai Sailing Program, Grant/Award Number: 19YF1410800

语种：英文

外文关键词：computational fluid dynamics; double partition divided-wall column; flow hydrodynamics; wall heat transfer

摘要：The aim of this study is to investigate the flow hydrodynamics and wall heat transfer characteristics on the tray of a two-staggered walled region in a double-partition divided-wall column (DPDWC). An experimental setup of DPDWC is designed, and a theoretical temperature gradient (TG) model based on Fourier's equation, which describes the wall heat transfer, is proposed. A coupled computational fluid dynamics-TG model is developed to analyze the heat transfer characteristics across partitions of DPDWC. The effects of liquid velocity, gas velocity, and different wall thermal boundary conditions on the flow and temperature fields are studied. The results indicate that the lack of a gas cone near partitions led to few vertical backflows of the liquid phase on the tray. Furthermore, the TGs near the liquid phase outlet increased with an increase in the liquid phase velocity. This work provides a scope for design and operation of DPDWC for industrial implementation.