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| Hydrodynamics numerical simulation of a vertical falling film evaporator for ionic liquid systems | |
| Hu, Zongyuan1,2; Wang, Junnan2,3; Dong, Haifeng2,4; Hussain, Shahid1,2; Zeng, Shaojuan2; Nie, Yi5; Zhang, Xiangping2,4; Zhang, Suojiang1,2 | |
| 2021-06-29 | |
| Source Publication | CHEMICAL ENGINEERING SCIENCE
 |
| ISSN | 0009-2509 |
| Volume | 237Pages:9 |
| Abstract | With a series of advantages, falling film evaporator is potentially appropriate for the purification and regeneration of ionic liquids (ILs). Due to the unique molecular structure of ILs, the IL film in falling film evaporator exhibits special hydrodynamic behaviors compare with organic solvents. The Nusselt method exhibits large deviations in predicting the film thickness and film velocity of ILs, which can be ascribed to the neglect of surface tension. In consideration of surface tension and wall adhesion, a novel simulation model was developed for quantitatively predicting the hydrodynamics of falling film flow. With the proposed model, the film flow distribution, film velocity and thickness were investigated. The predicted film thickness data are in general agreement with the experimental results. A novel empirical film thickness correlation considering surface tension is proposed, with deviations less than +/- 10%. The hydrodynamic models will provide fundamentals for designing the falling film evaporator of IL systems. (C) 2021 Elsevier Ltd. All rights reserved. |
| Keyword | Ionic liquids Falling film Hydrodynamics Numerical simulation |
| DOI | 10.1016/j.ces.2021.116563 |
| Language | 英语 |
| WOS Keyword | HEAT-TRANSFER ; FLAT-PLATE ; WATER FILM ; SINGLE BUBBLE ; MASS-TRANSFER ; FLOW ; VAPOR ; CONDENSATION ; THICKNESS ; SURFACE |
| Funding Project | National Key R&D Program of China[2020YFA0710200] ; National Key R&D Program of China[2018YFB0605802] ; Key Research Program of Chinese Academy of Science[ZDRW-ZS2018-1-3] ; Science Fund for Creative Research Groups of the National Natural Science Foundation of China[21921005] ; National Natural Science Foundation of China[21838010] ; National Natural Science Foundation of China[21776277] ; National Natural Science Foundation of China[21890764] ; CAS Key Technology Talent Program |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | National Key R&D Program of China ; Key Research Program of Chinese Academy of Science ; Science Fund for Creative Research Groups of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS Key Technology Talent Program |
| WOS ID | WOS:000670298000007 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/49349 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhang, Xiangping; Zhang, Suojiang |
| Affiliation | 1.Univ Chinese Acad Sci, Coll Chem & Engn, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, CAS Key Lab Green Proc & Engn,Inst Proc Engn, Beijing 100190, Peoples R China 3.China Univ Petr, Coll Chem Engn & Environm, Beijing 102249, Peoples R China 4.Adv Energy Sci & Technol Guangdong Lab, Huizhou 516003, Guangdong, Peoples R China 5.Zhengzhou Inst Emerging Ind Technol, Zhengzhou 450000, Peoples R China |
| Recommended Citation GB/T 7714 | Hu, Zongyuan,Wang, Junnan,Dong, Haifeng,et al. Hydrodynamics numerical simulation of a vertical falling film evaporator for ionic liquid systems[J]. CHEMICAL ENGINEERING SCIENCE,2021,237:9. |
| APA | Hu, Zongyuan.,Wang, Junnan.,Dong, Haifeng.,Hussain, Shahid.,Zeng, Shaojuan.,...&Zhang, Suojiang.(2021).Hydrodynamics numerical simulation of a vertical falling film evaporator for ionic liquid systems.CHEMICAL ENGINEERING SCIENCE,237,9. |
| MLA | Hu, Zongyuan,et al."Hydrodynamics numerical simulation of a vertical falling film evaporator for ionic liquid systems".CHEMICAL ENGINEERING SCIENCE 237(2021):9. |
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