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Solsvik J, Jakobsen HA. Single Air Bubble Breakup Experiments in Stirred Water Tank. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2015. [DOI: 10.1515/ijcre-2014-0154] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Single gas bubbles have been injected into an stirred liquid tank and the eventual breakup process of the bubbles was examined through high-speed imaging. Experimental observations of the breakup probability, breakup time, number of daughter bubbles and daughter bubble size distribution have been collected. The occurrence of non-equal-size breakup events dominated over equal-size breakup events. The frequency of binary and multiple breakup events was about equal. The largest uncertainty is associated with the determination of the breakup time because the bubbles take continuously altering deformed shapes already from the point of injection into the tank. The present experimental data do not support the standard model assumption regarding the number of daughter particles. The active breakup zone in the stirred tank was in the large velocity field close to the radial impeller. It is not evident whether the breakup events are due to time average shear or pressures and velocity fluctuations.
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Ma B, Hansen JH, Hvilsted S, Skov AL. Polydimethylsiloxane microspheres with poly(methyl methacrylate) coating: Modelling, preparation, and characterization. CAN J CHEM ENG 2015. [DOI: 10.1002/cjce.22271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Baoguang Ma
- Danish Polymer Centre; Department of Chemical and Biochemical Engineering & Center for Energy Resources Engineering; DTU DK-2800 Kgs. Lyngby Denmark
| | - Jens Henrik Hansen
- Maersk Oil Research and Technology Centre; Education City P.O. Box 210112 Doha Qatar
| | - Søren Hvilsted
- Danish Polymer Centre; Department of Chemical and Biochemical Engineering & Center for Energy Resources Engineering; DTU DK-2800 Kgs. Lyngby Denmark
| | - Anne Ladegaard Skov
- Danish Polymer Centre; Department of Chemical and Biochemical Engineering & Center for Energy Resources Engineering; DTU DK-2800 Kgs. Lyngby Denmark
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Solsvik J, Jakobsen HA. Evaluation of the Least-Squares Method for the Solution of the Population Balance Equation. J DISPER SCI TECHNOL 2015. [DOI: 10.1080/01932691.2014.880848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Solsvik J, Becker PJ, Sheibat-Othman N, Mohallick I, Farzad R, Jakobsen HA. Viscous Drop Breakage in Liquid–Liquid Stirred Dispersions: Population Balance Modeling. J DISPER SCI TECHNOL 2014. [DOI: 10.1080/01932691.2014.910471] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Solsvik J, Jakobsen HA. Evaluation of Weighted Residual Methods for the Solution of a Population Balance Model Describing Bubbly Flows: The Least-Squares, Galerkin, Tau, and Orthogonal Collocation Methods. Ind Eng Chem Res 2013. [DOI: 10.1021/ie402033b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jannike Solsvik
- Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
| | - Hugo A. Jakobsen
- Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
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