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Experimental Measurement And CFD Simulation on the Hydrodynamics of An Internal-Loop Airlift Reactor

This paper concerns with the experimental measurement and computational fluid dynamics simulation on local hydrodynamics of a gas-liquid internal-loop airlift reactor. The aim of this work is to study the sensitivity of the drag models and the significance of considering the lift force on the predic...

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Main Authors: Shi, Yan Liew, Zhi, Yee Lam, Jolius, Gimbun
Format: Conference or Workshop Item
Language:English
Published: EDP Sciences 2017
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/18683/1/Experimental%20measurement%20and%20CFD%20simulation%20on%20the%20hydrodynamics%20of%20an%20internal-loop%20airlift%20reactor.pdf
http://umpir.ump.edu.my/id/eprint/18683/
https://doi.org/10.1051/matecconf/201711101002
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spelling my.ump.umpir.186832018-04-18T02:41:52Z http://umpir.ump.edu.my/id/eprint/18683/ Experimental Measurement And CFD Simulation on the Hydrodynamics of An Internal-Loop Airlift Reactor Shi, Yan Liew Zhi, Yee Lam Jolius, Gimbun TP Chemical technology This paper concerns with the experimental measurement and computational fluid dynamics simulation on local hydrodynamics of a gas-liquid internal-loop airlift reactor. The aim of this work is to study the sensitivity of the drag models and the significance of considering the lift force on the predictive accuracy of the simulation. The experimental analysis was carried out using laser Doppler anemometry at three different heights (i.e. Y = 0.20 m, 0.30 m and 0.38 m) across the riser and downcomerat volumetric flow rate of 0.30 m3/h to provide validation for the simulation results. A transient three-dimensional gasliquid internal-loop airlift reactor was carried out using FLUENT 16.2 by implementing the two-fluid model approach. The Eulerian-Eulerian multiphase and standard κ-ε dispersed turbulence model wereemployed in this study. Results suggest that the spherical drag model performed poorly and that the drag model governed by Rayleigh-Taylor shows promising accuracy in the prediction of overall mean axial liquid velocity. On the other hand, the consideration of lift model shows slightly improvement in accuracy. These findings may serve as a guidance for future scale-up and design of airlift reactor studies. EDP Sciences 2017 Conference or Workshop Item PeerReviewed application/pdf en cc_by http://umpir.ump.edu.my/id/eprint/18683/1/Experimental%20measurement%20and%20CFD%20simulation%20on%20the%20hydrodynamics%20of%20an%20internal-loop%20airlift%20reactor.pdf Shi, Yan Liew and Zhi, Yee Lam and Jolius, Gimbun (2017) Experimental Measurement And CFD Simulation on the Hydrodynamics of An Internal-Loop Airlift Reactor. In: MATEC Web of Conferences: Fluids and Chemical Engineering Conference (FluidsChE 2017) , 4-6 April 2017 , Kota Kinabalu, Sabah, Malaysia. pp. 1-9., 111 (01002). ISSN 2261-236X https://doi.org/10.1051/matecconf/201711101002 DOI: 10.1051/matecconf/201711101002
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Shi, Yan Liew
Zhi, Yee Lam
Jolius, Gimbun
Experimental Measurement And CFD Simulation on the Hydrodynamics of An Internal-Loop Airlift Reactor
description This paper concerns with the experimental measurement and computational fluid dynamics simulation on local hydrodynamics of a gas-liquid internal-loop airlift reactor. The aim of this work is to study the sensitivity of the drag models and the significance of considering the lift force on the predictive accuracy of the simulation. The experimental analysis was carried out using laser Doppler anemometry at three different heights (i.e. Y = 0.20 m, 0.30 m and 0.38 m) across the riser and downcomerat volumetric flow rate of 0.30 m3/h to provide validation for the simulation results. A transient three-dimensional gasliquid internal-loop airlift reactor was carried out using FLUENT 16.2 by implementing the two-fluid model approach. The Eulerian-Eulerian multiphase and standard κ-ε dispersed turbulence model wereemployed in this study. Results suggest that the spherical drag model performed poorly and that the drag model governed by Rayleigh-Taylor shows promising accuracy in the prediction of overall mean axial liquid velocity. On the other hand, the consideration of lift model shows slightly improvement in accuracy. These findings may serve as a guidance for future scale-up and design of airlift reactor studies.
format Conference or Workshop Item
author Shi, Yan Liew
Zhi, Yee Lam
Jolius, Gimbun
author_facet Shi, Yan Liew
Zhi, Yee Lam
Jolius, Gimbun
author_sort Shi, Yan Liew
title Experimental Measurement And CFD Simulation on the Hydrodynamics of An Internal-Loop Airlift Reactor
title_short Experimental Measurement And CFD Simulation on the Hydrodynamics of An Internal-Loop Airlift Reactor
title_full Experimental Measurement And CFD Simulation on the Hydrodynamics of An Internal-Loop Airlift Reactor
title_fullStr Experimental Measurement And CFD Simulation on the Hydrodynamics of An Internal-Loop Airlift Reactor
title_full_unstemmed Experimental Measurement And CFD Simulation on the Hydrodynamics of An Internal-Loop Airlift Reactor
title_sort experimental measurement and cfd simulation on the hydrodynamics of an internal-loop airlift reactor
publisher EDP Sciences
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/18683/1/Experimental%20measurement%20and%20CFD%20simulation%20on%20the%20hydrodynamics%20of%20an%20internal-loop%20airlift%20reactor.pdf
http://umpir.ump.edu.my/id/eprint/18683/
https://doi.org/10.1051/matecconf/201711101002
_version_ 1643668508897181696
score 13.211869

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