Knowledge Management System Of Institute of process engineering,CAS
| Effect of impeller type and scale-up on spatial distribution of shear rate in a stirred tank | |
Wang, Huina1,2; Duan, Xiaoxia1,2 ; Feng, Xin1,2; Mao, Zai-Sha1; Yang, Chao1,2
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| 2022-02-01 | |
| Source Publication | CHINESE JOURNAL OF CHEMICAL ENGINEERING
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| ISSN | 1004-9541 |
| Volume | 42Pages:351-363 |
| Abstract | The main spatial distribution features of shear rate in a stirred tank operated with five different radial and axial flow impellers were presented with particle image velocimetry (PIV) experiments. Not only the average shear rate in the whole tank but also the local value in the vicinity of impeller increases linearly with impeller speed. Furthermore, the shear coefficient (Ks,imp) at the impeller outlet is linearly related to the impeller flow number (Nq) and decreases with the increase of Nq in general at the constant power consumption per unit volume (Pv). During scale-up based on the constant Pv and geometric similarity, CFD results show that the volume-averaged shear rate (cavg) for RDT decreases faster than that of other impellers with the impeller tip velocity (Utip). The novel multi-blade combined (MBC) impeller with the increased height-to-diameter ratio of the stirred tank is able to more effectively improve the distribution uniformity of shear rate at the same Pv after scale-up. These studies provide a data basis for selecting the impeller types and improving the shear rate environment in the large-scale stirred tank. (c) 2021 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved. |
| Keyword | Particle image velocimetry Shear rate distribution Constant power consumption per unit volume Computational fluid dynamics Scale-up |
| DOI | 10.1016/j.cjche.2021.03.004 |
| Language | 英语 |
| WOS Keyword | HYDRODYNAMIC DAMAGE ; TRANSITIONAL FLOW ; STRESS ; FLUIDS ; DISSIPATION ; BEHAVIOR ; CELLS ; PIV ; CFD |
| Funding Project | National Key Research and Development Program[2020YFA0906800] ; National Natural Science Foundation of China[21808221] ; National Natural Science Foundation of China[91934301] ; National Natural Science Foundation of China[21961160745] ; External Cooperation Program of BIC, Chinese Academy of Sciences[122111KYSB20190032] ; Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry[E0010719] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM2020C06] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | National Key Research and Development Program ; National Natural Science Foundation of China ; External Cooperation Program of BIC, Chinese Academy of Sciences ; Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences |
| WOS ID | WOS:000777371000001 |
| Publisher | CHEMICAL INDUSTRY PRESS CO LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/52574 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Duan, Xiaoxia; Yang, Chao |
| 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 |
| Recommended Citation GB/T 7714 | Wang, Huina,Duan, Xiaoxia,Feng, Xin,et al. Effect of impeller type and scale-up on spatial distribution of shear rate in a stirred tank[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2022,42:351-363. |
| APA | Wang, Huina,Duan, Xiaoxia,Feng, Xin,Mao, Zai-Sha,&Yang, Chao.(2022).Effect of impeller type and scale-up on spatial distribution of shear rate in a stirred tank.CHINESE JOURNAL OF CHEMICAL ENGINEERING,42,351-363. |
| MLA | Wang, Huina,et al."Effect of impeller type and scale-up on spatial distribution of shear rate in a stirred tank".CHINESE JOURNAL OF CHEMICAL ENGINEERING 42(2022):351-363. |
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