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A new FCCS-CFD coupled method for understanding the influence of molecular structure of ionic liquid on bubble behaviors
Bao, Di1,2; Zhang, Xiangping1,2; Dong, Haifeng1; Zeng, Shaojuan1; Shang, Dawei1; Zhang, Suojiang1
2018-03-01
Source PublicationCHEMICAL ENGINEERING AND PROCESSING
ISSN0255-2701
Volume125Pages:266-274
AbstractThe complex interaction between cations and anions as well as the molecular structure makes the ionic liquids (ILs) different from organic solutions. Thus, the conventional hydrodynamic models, which are suitable for water and organic solutions, are not able to predict bubble behaviors in ILs accurately. In this work, a new FCCS (Fragment Contribution Corresponding State)-CFD(CFD) coupled method is proposed, so that the influence of molecular structure of ILs can be revealed. A source term which represents the electrostatic interaction between cations and anions of ILs is introduced into the momentum equation, which makes the model reflect strictly the inner feature of ionic liquids. The simulation results show that the relative error of aspect ratio is only 0.06%, much lower than 3.73% which is calculated by the conventional method, indicating the new method is more accurate. Furthermore, the bubble behaviors, i.e. the bubble shape and velocity, in 30 ILs are simulated. As a result, the relationship between molecular structures of ILs and bubble behaviors, as well as the bubble flow regime is obtained.
KeywordFragment Contribution Corresponding State (Fccs) Computational Fluid Dynamics (Cfd) Ionic Liquids (Ils) Bubble Behavior Gas-liquid Interface
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.cep.2018.02.012
Indexed BySCI
Language英语
WOS KeywordCORRESPONDING-STATES ; NUMERICAL-SIMULATION ; SURFACE-TENSION ; TRANSPORT-PROPERTIES ; CARBON CAPTURE ; SINGLE-BUBBLE ; RISE VELOCITY ; MASS-TRANSFER ; SYSTEMS ; GAS
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Funding OrganizationNational Key Projects for Fundamental Research and Development of China(2016YFB0600903) ; National Natural Science Fund for Distinguished Young Scholars(21425625) ; National Natural Science Foundation of China(U1662122 ; Instrument Developing Project of the Chinese Academy of Sciences(YZ201567) ; 21676271)
WOS IDWOS:000429890900028
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24135
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc & Engn, State Key Lab Muhiphase Complex Syst,Inst Proc En, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Bao, Di,Zhang, Xiangping,Dong, Haifeng,et al. A new FCCS-CFD coupled method for understanding the influence of molecular structure of ionic liquid on bubble behaviors[J]. CHEMICAL ENGINEERING AND PROCESSING,2018,125:266-274.
APA Bao, Di,Zhang, Xiangping,Dong, Haifeng,Zeng, Shaojuan,Shang, Dawei,&Zhang, Suojiang.(2018).A new FCCS-CFD coupled method for understanding the influence of molecular structure of ionic liquid on bubble behaviors.CHEMICAL ENGINEERING AND PROCESSING,125,266-274.
MLA Bao, Di,et al."A new FCCS-CFD coupled method for understanding the influence of molecular structure of ionic liquid on bubble behaviors".CHEMICAL ENGINEERING AND PROCESSING 125(2018):266-274.
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