Knowledge Management System Of Institute of process engineering,CAS
| Numerical simulation of micro-mixing in gas-liquid and solid-liquid stirred tanks with the coupled CFD-E-model | |
| Duan, Xiaoxia1,2; Feng, Xin1,2; Peng, Chong3; Yang, Chao1,2; Mao, Zaisha1 | |
| 2020-09-01 | |
| Source Publication | CHINESE JOURNAL OF CHEMICAL ENGINEERING
 |
| ISSN | 1004-9541 |
| Volume | 28Issue:9Pages:2235-2247 |
| Abstract | The coupled CFD-E-model for multiphase micro-mixing was developed, and used to predict the micro-mixing effects on the parallel competing chemical reactions in semi-batch gas-liquid and solid-liquid stirred tanks. Based on the multiphase macro-flow field, the key parameters of the micro-mixing E-model were obtained with solving the Reynolds-averaged transport equations of mixture fraction and its variance at low computational costs. Compared with experimental data, the multiphase numerical method shows the satisfactory predicting ability. For the gas-liquid system, the segregated reaction zone is mainly near the feed point, and shrinks to the exit of feed-pipe when the feed position is closer to the impeller. Besides, surface feed requires more time to completely exhaust the added FI' solution than that of impeller region feed at the same operating condition. For the solid-liquid system, when the solid suspension cloud is formed at high solid holdups, the flow velocity in the clear liquid layer above the cloud is notably reduced and the reactions proceed slowly in this almost stagnant zone. Therefore, the segregation index in this case is larger than that in the dilute solid-liquid system. (C) 2020 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved. |
| Keyword | Stirred tank Engulfment model (E-model) Multiphase flow Micro-mixing Computational fluid dynamics (CFD) Simulation |
| DOI | 10.1016/j.cjche.2020.06.016 |
| Language | 英语 |
| WOS Keyword | PARALLEL CHEMICAL-REACTIONS ; FLUID-DYNAMICS SIMULATION ; CRITICAL IMPELLER SPEED ; MASS-TRANSFER ; RUSHTON TURBINE ; TURBULENT-FLOW ; BUBBLE-SIZE ; PREDICTION ; SUSPENSION ; VESSEL |
| Funding Project | National Key Research and Development Program[2016YFB0301702] ; National Natural Science Foundation of China[21808221] ; National Natural Science Foundation of China[21776282] ; National Natural Science Foundation of China[21938009] ; Major Research Plan of NSFC[91934301] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-JSC030] ; Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry[E0010719] ; Youth Innovation Promotion Association CAS |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | National Key Research and Development Program ; National Natural Science Foundation of China ; Major Research Plan of NSFC ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry ; Youth Innovation Promotion Association CAS |
| WOS ID | WOS:000584338800002 |
| Publisher | CHEMICAL INDUSTRY PRESS CO LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/42695 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Feng, Xin |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 3.SINOPEC Dalian Res Inst Petr & Petrochem, Dalian 116045, Peoples R China |
| Recommended Citation GB/T 7714 | Duan, Xiaoxia,Feng, Xin,Peng, Chong,et al. Numerical simulation of micro-mixing in gas-liquid and solid-liquid stirred tanks with the coupled CFD-E-model[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2020,28(9):2235-2247. |
| APA | Duan, Xiaoxia,Feng, Xin,Peng, Chong,Yang, Chao,&Mao, Zaisha.(2020).Numerical simulation of micro-mixing in gas-liquid and solid-liquid stirred tanks with the coupled CFD-E-model.CHINESE JOURNAL OF CHEMICAL ENGINEERING,28(9),2235-2247. |
| MLA | Duan, Xiaoxia,et al."Numerical simulation of micro-mixing in gas-liquid and solid-liquid stirred tanks with the coupled CFD-E-model".CHINESE JOURNAL OF CHEMICAL ENGINEERING 28.9(2020):2235-2247. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment