CFD analysis of phase holdup behaviour in a gas-liquid bubble column
Experimental works on bubble column hydrodynamic are normally carried out on a laboratory scale less than 0.3 m with holes number less than 10. In this paper, we discuss several approaches to bubble column scale-up, relying on variables of parameters. Two spargers with different hole diameters (0.5...
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| Format: | Article |
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Faculty of Engineering Universiti Malaysia Sarawak
2021
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| Online Access: | http://psasir.upm.edu.my/id/eprint/96318/ |
| _version_ | 1848862335694798848 |
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| author | Abd Halim, Nur Khairunnisa Hussain, Siti Aslina Abd. Razak, Mus’ab Mohd Yunos, Mohd Amirul Syafiq |
| author_facet | Abd Halim, Nur Khairunnisa Hussain, Siti Aslina Abd. Razak, Mus’ab Mohd Yunos, Mohd Amirul Syafiq |
| author_sort | Abd Halim, Nur Khairunnisa |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Experimental works on bubble column hydrodynamic are normally carried out on a laboratory scale less than 0.3 m with holes number less than 10. In this paper, we discuss several approaches to bubble column scale-up, relying on variables of parameters. Two spargers with different hole diameters (0.5 mm and 1.25 mm) and superficial gas velocities (0.0125 m/s and 0.0501 m/s) are used to determine the distribution of gas holdup and liquid flow pattern. An Insignificant level of bed heights is investigated for the efficiency of hydrodynamic performance. Computational Fluid Dynamic (CFD) is used as the realistic representation of the actual reactor. The flow of the gas-liquid interface is implemented using the VOF model using the finite volume method by tracking the volume fraction of each of the fluids throughout the domain. It is observed that the initial bed heights, superficial gas velocity, and hole diameter of the sparger influence the overall gas holdup. Although the difference in sparger hole diameter affects overall gas holdup, the results are weak relative to other operating conditions. The simulation work is then compared with experimental data to improve the accuracy in analyzing the hydrodynamics of multiphase system, as well as validated the multidimensional models. |
| first_indexed | 2025-11-15T13:15:24Z |
| format | Article |
| id | upm-96318 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T13:15:24Z |
| publishDate | 2021 |
| publisher | Faculty of Engineering Universiti Malaysia Sarawak |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-963182023-01-31T02:06:08Z http://psasir.upm.edu.my/id/eprint/96318/ CFD analysis of phase holdup behaviour in a gas-liquid bubble column Abd Halim, Nur Khairunnisa Hussain, Siti Aslina Abd. Razak, Mus’ab Mohd Yunos, Mohd Amirul Syafiq Experimental works on bubble column hydrodynamic are normally carried out on a laboratory scale less than 0.3 m with holes number less than 10. In this paper, we discuss several approaches to bubble column scale-up, relying on variables of parameters. Two spargers with different hole diameters (0.5 mm and 1.25 mm) and superficial gas velocities (0.0125 m/s and 0.0501 m/s) are used to determine the distribution of gas holdup and liquid flow pattern. An Insignificant level of bed heights is investigated for the efficiency of hydrodynamic performance. Computational Fluid Dynamic (CFD) is used as the realistic representation of the actual reactor. The flow of the gas-liquid interface is implemented using the VOF model using the finite volume method by tracking the volume fraction of each of the fluids throughout the domain. It is observed that the initial bed heights, superficial gas velocity, and hole diameter of the sparger influence the overall gas holdup. Although the difference in sparger hole diameter affects overall gas holdup, the results are weak relative to other operating conditions. The simulation work is then compared with experimental data to improve the accuracy in analyzing the hydrodynamics of multiphase system, as well as validated the multidimensional models. Faculty of Engineering Universiti Malaysia Sarawak 2021 Article PeerReviewed Abd Halim, Nur Khairunnisa and Hussain, Siti Aslina and Abd. Razak, Mus’ab and Mohd Yunos, Mohd Amirul Syafiq (2021) CFD analysis of phase holdup behaviour in a gas-liquid bubble column. Journal of Applied Science & Process Engineering, 8 (1). 738 - 749. ISSN 2289-7771 https://publisher.unimas.my/ojs/index.php/JASPE/article/view/3180 10.33736/jaspe.3180.2021 |
| spellingShingle | Abd Halim, Nur Khairunnisa Hussain, Siti Aslina Abd. Razak, Mus’ab Mohd Yunos, Mohd Amirul Syafiq CFD analysis of phase holdup behaviour in a gas-liquid bubble column |
| title | CFD analysis of phase holdup behaviour in a gas-liquid bubble column |
| title_full | CFD analysis of phase holdup behaviour in a gas-liquid bubble column |
| title_fullStr | CFD analysis of phase holdup behaviour in a gas-liquid bubble column |
| title_full_unstemmed | CFD analysis of phase holdup behaviour in a gas-liquid bubble column |
| title_short | CFD analysis of phase holdup behaviour in a gas-liquid bubble column |
| title_sort | cfd analysis of phase holdup behaviour in a gas-liquid bubble column |
| url | http://psasir.upm.edu.my/id/eprint/96318/ http://psasir.upm.edu.my/id/eprint/96318/ http://psasir.upm.edu.my/id/eprint/96318/ |