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Ramírez-Cruz J, Salinas-Vázquez M, Ascanio G, Vicente-Rodríguez W, Lagarza-Córtes C. Mixing dynamics in an uncovered unbaffled stirred tank using Large-Eddy Simulations and a passive scalar transport equation. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115658] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Zeng X, Lan X, Zhu H, Liu H, Umar HA, Xie Y, Long G, Ma C. A Review on Bubble Stability in Fresh Concrete: Mechanisms and Main Factors. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E1820. [PMID: 32290602 PMCID: PMC7215813 DOI: 10.3390/ma13081820] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/08/2020] [Accepted: 04/09/2020] [Indexed: 12/12/2022]
Abstract
In order to improve the stability of air bubbles in fresh concrete, it is of great significance to have a better understanding of the mechanisms and main influencing factors of bubble stability. In the present review, the formation and collapse process of air bubbles in fresh concrete are essentially detailed; and the advances of major influencing factors of bubble stability are summarized. The results show that the surface tension of air-liquid interface exerts a huge impact on bubble stability by reducing surface free energy and Plateau drainage, as well as increasing the Gibbs surface elasticity. However, surface tension may not be the only determinant of bubble stability. Both the strength of bubble film and the diffusion rate of air through the membrane may also dominate bubble stability. The application of nano-silica is a current trend and plays a key role in ameliorating bubble stability. The foam stability could be increased by 6 times when the mass fraction of nano-particle reached 1.5%.
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Affiliation(s)
- Xiaohui Zeng
- Department of Civil Engineering, Central South University, Changsha 410075, China
| | - Xuli Lan
- Department of Civil Engineering, Central South University, Changsha 410075, China
| | - Huasheng Zhu
- Department of Civil Engineering, Central South University, Changsha 410075, China
| | - Haichuan Liu
- Department of Civil Engineering, Central South University, Changsha 410075, China
| | | | - Youjun Xie
- Department of Civil Engineering, Central South University, Changsha 410075, China
| | - Guangcheng Long
- Department of Civil Engineering, Central South University, Changsha 410075, China
| | - Cong Ma
- Department of Civil Engineering, Central South University, Changsha 410075, China
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Abdulrasaq UK, Ayranci I. The effect of hydrodynamic parameters on the production of Pickering emulsions in a baffled stirred tank. AIChE J 2019. [DOI: 10.1002/aic.16691] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Usman K. Abdulrasaq
- Department of Chemical EngineeringMiddle East Technical University Ankara Turkey
| | - Inci Ayranci
- Department of Chemical EngineeringMiddle East Technical University Ankara Turkey
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Kumar P, Prajapati M, Das AK, Mitra SK. Vortex Formation and Subsequent Air Entrainment inside a Liquid Pool. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b00379] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Parmod Kumar
- Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee 247667, India
| | - Mihir Prajapati
- Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee 247667, India
| | - Arup K. Das
- Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee 247667, India
| | - Sushanta K. Mitra
- Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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Komrakova A, Liu Z, Machado M, Kresta S. Development of a zone flow model for the confined impeller stirred tank (CIST) based on mean velocity and turbulence measurements. Chem Eng Res Des 2017. [DOI: 10.1016/j.cherd.2017.07.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zhang Y, Pan X, Wang Y, Luo P, Wu H. Numerical and experimental investigation on surface air entrainment mechanisms of a novel long-short blades agitator. AIChE J 2017. [DOI: 10.1002/aic.15865] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yueqiao Zhang
- School of Chemistry & Chemical Engineering; Southeast University; Nanjing 211189 China
| | - Xiang Pan
- School of Chemistry & Chemical Engineering; Southeast University; Nanjing 211189 China
| | - Yaohua Wang
- School of Chemistry & Chemical Engineering; Southeast University; Nanjing 211189 China
| | - Peicheng Luo
- School of Chemistry & Chemical Engineering; Southeast University; Nanjing 211189 China
| | - Hua Wu
- Institute for Chemical and Bioengineering, Dept. of Chemistry and Applied Biosciences; ETH Zurich; Zurich 8093 Switzerland
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Valverde MR, Bettega R, Badino AC. Numerical evaluation of mass transfer coefficient in stirred tank reactors with non-Newtonian fluid. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2016. [DOI: 10.1134/s0040579516060178] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Luo P, Wu J, Pan X, Zhang Y, Wu H. Gas-liquid mass transfer behavior in a surface-aerated vessel stirred by a novel long-short blades agitator. AIChE J 2015. [DOI: 10.1002/aic.15104] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Peicheng Luo
- Dept. of Chemical Engineering, School of Chemistry and Chemical Engineering; Southeast University; Nanjing 211189 China
| | - Jun Wu
- Dept. of Chemical Engineering, School of Chemistry and Chemical Engineering; Southeast University; Nanjing 211189 China
| | - Xiang Pan
- Dept. of Chemical Engineering, School of Chemistry and Chemical Engineering; Southeast University; Nanjing 211189 China
| | - Yueqiao Zhang
- Dept. of Chemical Engineering, School of Chemistry and Chemical Engineering; Southeast University; Nanjing 211189 China
| | - Hua Wu
- Institute for Chemical and Bioengineering; Dept. of Chemistry and Applied Biosciences; ETH Zurich 8093 Zurich Switzerland
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Douïeb S, Fradette L, Bertrand F, Haut B. Impact of the fluid flow conditions on the formation rate of carbon dioxide hydrates in a semi-batch stirred tank reactor. AIChE J 2015. [DOI: 10.1002/aic.14952] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- S. Douïeb
- URPEI, Dept. of Chemical Engineering, École Polytechnique de Montréal; Station CV Montreal H3C 3A7 Canada
- TIPs, Université Libre de Bruxelles; Av. F.D. Roosevelt 50, CP 165/67 1050 Brussels Belgium
| | - L. Fradette
- URPEI, Dept. of Chemical Engineering, École Polytechnique de Montréal; Station CV Montreal H3C 3A7 Canada
| | - F. Bertrand
- URPEI, Dept. of Chemical Engineering, École Polytechnique de Montréal; Station CV Montreal H3C 3A7 Canada
| | - B. Haut
- TIPs, Université Libre de Bruxelles; Av. F.D. Roosevelt 50, CP 165/67 1050 Brussels Belgium
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Machado MB, Kresta SM. The confined impeller stirred tank (CIST): A bench scale testing device for specification of local mixing conditions required in large scale vessels. Chem Eng Res Des 2013. [DOI: 10.1016/j.cherd.2013.06.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Flow regimes and surface air entrainment in partially filled stirred vessels for different fill ratios. Chem Eng Sci 2012. [DOI: 10.1016/j.ces.2012.05.050] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Patwardhan A, Mali R, Jadhao S, Bhor K, Padmakumar G, Vaidyanathan G. Argon entrainment into liquid sodium in fast breeder reactor. NUCLEAR ENGINEERING AND DESIGN 2012. [DOI: 10.1016/j.nucengdes.2011.07.046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Durve A, Patwardhan A. Numerical and experimental investigation of onset of gas entrainment phenomenon. Chem Eng Sci 2012. [DOI: 10.1016/j.ces.2012.01.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Gas entrainment and holdup characteristics in a modified gas–liquid–solid down flow three-phase contactor. POWDER TECHNOL 2012. [DOI: 10.1016/j.powtec.2011.10.062] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Machado MB, Nunhez JR, Nobes D, Kresta SM. Impeller characterization and selection: Balancing efficient hydrodynamics with process mixing requirements. AIChE J 2011. [DOI: 10.1002/aic.12758] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Chen T, Wang LQ, Wu DZ, Sun YB, Wu B, Li ZF. Investigation of the mechanism of low-density particle and liquid mixing process in a stirred vessel. CAN J CHEM ENG 2011. [DOI: 10.1002/cjce.20578] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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The effect of off‐wall clearance of a side‐entering impeller on the mixing of pulp suspensions in a cylindrical stock chest. CAN J CHEM ENG 2011. [DOI: 10.1002/cjce.20503] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Montante G, Laurenzi F, Paglianti A, Magelli F. Two-Phase Flow and Bubble Size Distribution in Air-Sparged and Surface-Aerated Vessels Stirred by a Dual Impeller. Ind Eng Chem Res 2010. [DOI: 10.1021/ie9006276] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Giuseppina Montante
- Department of Chemical, Mining and Environmental Engineering, University of Bologna, via Terracini 28, Bologna I-40131, Italy
| | - Fabio Laurenzi
- Department of Chemical, Mining and Environmental Engineering, University of Bologna, via Terracini 28, Bologna I-40131, Italy
| | - Alessandro Paglianti
- Department of Chemical, Mining and Environmental Engineering, University of Bologna, via Terracini 28, Bologna I-40131, Italy
| | - Franco Magelli
- Department of Chemical, Mining and Environmental Engineering, University of Bologna, via Terracini 28, Bologna I-40131, Italy
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Kukukova A, Aubin J, Kresta SM. A new definition of mixing and segregation: Three dimensions of a key process variable. Chem Eng Res Des 2009. [DOI: 10.1016/j.cherd.2009.01.001] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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