Measurement of phase holdups in liquid-liquid-solid three-phase stirred tanks and CFD simulation
文献类型：期刊论文
| 作者 | Wang, Feng; Mao, Zai-Sha; Wang, Yuefa; Yang, Chao |
| 刊名 | CHEMICAL ENGINEERING SCIENCE
 |
| 出版日期 | 2006-11-01 |
| 卷号 | 61期号:22页码:7535-7550 |
| 关键词 | stirred tank three-phase flow turbulence numerical simulation |
| ISSN号 | 0009-2509 |
| 其他题名 | Chem. Eng. Sci. |
| 中文摘要 | Phase holdup is an important hydrodynamic characteristic of multiphase systems relevant to optimization and scale-up of related process equipment. In the present article, measurements of phase distribution of solid particles and oil droplets are conducted in a lab-scale stirred tank by sample withdrawal under various operating conditions. A Eulerian-Eulerian three-fluid model is established for the prediction of phase distribution of two dispersed phases in the agitated liquid-liquid-solid dispersion system. The turbulence structure in the system is described by an extension of the standard k-epsilon turbulence model to three-phase flow including the influence of presence of two dispersed phases as an additional source of turbulent kinetic energy. Momentum exchange between continuous and dispersed phase as well as between the two dispersed phases are incorporated into the model formulation. Comparison of model predictions with experimental data suggests reasonable agreement for the dispersed oil phase. The predicted distribution of solid particles shows some discrepancies in comparison with the measurements, but the agreement is significantly improved for higher impeller speeds. (c) 2006 Elsevier Ltd. All tights reserved. |
| 英文摘要 | Phase holdup is an important hydrodynamic characteristic of multiphase systems relevant to optimization and scale-up of related process equipment. In the present article, measurements of phase distribution of solid particles and oil droplets are conducted in a lab-scale stirred tank by sample withdrawal under various operating conditions. A Eulerian-Eulerian three-fluid model is established for the prediction of phase distribution of two dispersed phases in the agitated liquid-liquid-solid dispersion system. The turbulence structure in the system is described by an extension of the standard k-epsilon turbulence model to three-phase flow including the influence of presence of two dispersed phases as an additional source of turbulent kinetic energy. Momentum exchange between continuous and dispersed phase as well as between the two dispersed phases are incorporated into the model formulation. Comparison of model predictions with experimental data suggests reasonable agreement for the dispersed oil phase. The predicted distribution of solid particles shows some discrepancies in comparison with the measurements, but the agreement is significantly improved for higher impeller speeds. (c) 2006 Elsevier Ltd. All tights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | BUBBLE-COLUMNS ; 2-PHASE FLOW ; VESSELS ; REACTORS ; DISPERSION |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000242240100029 |
| 公开日期 | 2013-10-24 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4011]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Inst Process Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Feng,Mao, Zai-Sha,Wang, Yuefa,et al. Measurement of phase holdups in liquid-liquid-solid three-phase stirred tanks and CFD simulation[J]. CHEMICAL ENGINEERING SCIENCE,2006,61(22):7535-7550. |
| APA | Wang, Feng,Mao, Zai-Sha,Wang, Yuefa,&Yang, Chao.(2006).Measurement of phase holdups in liquid-liquid-solid three-phase stirred tanks and CFD simulation.CHEMICAL ENGINEERING SCIENCE,61(22),7535-7550. |
| MLA | Wang, Feng,et al."Measurement of phase holdups in liquid-liquid-solid three-phase stirred tanks and CFD simulation".CHEMICAL ENGINEERING SCIENCE 61.22(2006):7535-7550. |
入库方式： OAI收割
来源：过程工程研究所
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