Hydrodynamics of airlift reactor with internal circulation loop: Experiment vs. CFD simulation

P. Lestinsky; Petri Väyrynen; M. Vecer; K. Wichterle

doi:10.1016/j.proeng.2012.07.482

Hydrodynamics of airlift reactor with internal circulation loop: Experiment vs. CFD simulation

P. Lestinsky^*, Petri Väyrynen, M. Vecer, K. Wichterle

^*Corresponding author for this work

Department of Chemical and Metallurgical Engineering

Technical University of Ostrava

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

29 Citations (Scopus)

163 Downloads (Pure)

Abstract

Effect of geometrical parameters on two phase hydrodynamics of airlift reactor is the main topic of present paper. Laboratory scale apparatus with internal circulation loop consists of concentric draft tube, in which a gas bubbles rising. Setup of draft tube inside of reactor is important geometry parameter and has big influence on two phase hydrodynamics. In experiment was studied influence of changes diameter of draft tube to hydrodynamics in airlift reactor. Results of experiments (liquid velocity and gas hold-up) were compared with the simple CFD simulations performed in COMSOL Multiphysics 3.5a. For each point of gas volumetric flow in simulation, were determined conditions of bubble diameter and bubble drag coefficient. Although bubble break-up and coalescence were neglected, the results of numerical simulation are in pretty good agreement with experimental data.

Original language	English
Title of host publication	20th International Congress of Chemical and Process Engineering CHISA 2012 25 – 29 August 2012, Prague, Czech Republic
Publisher	Elsevier
Pages	892-907
Number of pages	16
DOIs	https://doi.org/10.1016/j.proeng.2012.07.482
Publication status	Published - 2012
MoE publication type	A4 Conference publication
Event	International Congress of Chemical and Process Engineering - Prague, Czech Republic Duration: 25 Aug 2012 → 29 Aug 2012 Conference number: 20

Publication series

Name	Procedia Engineering
Publisher	Elsevier
Volume	42
ISSN (Electronic)	1877-7058

Conference

Conference	International Congress of Chemical and Process Engineering
Abbreviated title	CHISA
Country/Territory	Czech Republic
City	Prague
Period	25/08/2012 → 29/08/2012

Keywords

Airlift reactor
Bubbles
CFD simulation
Draft tube

Access to Document

10.1016/j.proeng.2012.07.482

1-s2.0-S1877705812028895-mainFinal published version, 203 KBLicence: CC BY-NC-ND

Cite this

Lestinsky, P., Väyrynen, P., Vecer, M., & Wichterle, K. (2012). Hydrodynamics of airlift reactor with internal circulation loop: Experiment vs. CFD simulation. In 20th International Congress of Chemical and Process Engineering CHISA 2012 25 – 29 August 2012, Prague, Czech Republic (pp. 892-907). (Procedia Engineering; Vol. 42). Elsevier. https://doi.org/10.1016/j.proeng.2012.07.482

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abstract = "Effect of geometrical parameters on two phase hydrodynamics of airlift reactor is the main topic of present paper. Laboratory scale apparatus with internal circulation loop consists of concentric draft tube, in which a gas bubbles rising. Setup of draft tube inside of reactor is important geometry parameter and has big influence on two phase hydrodynamics. In experiment was studied influence of changes diameter of draft tube to hydrodynamics in airlift reactor. Results of experiments (liquid velocity and gas hold-up) were compared with the simple CFD simulations performed in COMSOL Multiphysics 3.5a. For each point of gas volumetric flow in simulation, were determined conditions of bubble diameter and bubble drag coefficient. Although bubble break-up and coalescence were neglected, the results of numerical simulation are in pretty good agreement with experimental data.",

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author = "P. Lestinsky and Petri V{\"a}yrynen and M. Vecer and K. Wichterle",

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Lestinsky, P, Väyrynen, P, Vecer, M & Wichterle, K 2012, Hydrodynamics of airlift reactor with internal circulation loop: Experiment vs. CFD simulation. in 20th International Congress of Chemical and Process Engineering CHISA 2012 25 – 29 August 2012, Prague, Czech Republic. Procedia Engineering, vol. 42, Elsevier, pp. 892-907, International Congress of Chemical and Process Engineering, Prague, Czech Republic, 25/08/2012. https://doi.org/10.1016/j.proeng.2012.07.482

Hydrodynamics of airlift reactor with internal circulation loop: Experiment vs. CFD simulation. / Lestinsky, P.; Väyrynen, Petri; Vecer, M. et al.
20th International Congress of Chemical and Process Engineering CHISA 2012 25 – 29 August 2012, Prague, Czech Republic. Elsevier, 2012. p. 892-907 (Procedia Engineering; Vol. 42).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Hydrodynamics of airlift reactor with internal circulation loop

T2 - International Congress of Chemical and Process Engineering

AU - Lestinsky, P.

AU - Väyrynen, Petri

AU - Vecer, M.

AU - Wichterle, K.

N1 - Conference code: 20

PY - 2012

Y1 - 2012

N2 - Effect of geometrical parameters on two phase hydrodynamics of airlift reactor is the main topic of present paper. Laboratory scale apparatus with internal circulation loop consists of concentric draft tube, in which a gas bubbles rising. Setup of draft tube inside of reactor is important geometry parameter and has big influence on two phase hydrodynamics. In experiment was studied influence of changes diameter of draft tube to hydrodynamics in airlift reactor. Results of experiments (liquid velocity and gas hold-up) were compared with the simple CFD simulations performed in COMSOL Multiphysics 3.5a. For each point of gas volumetric flow in simulation, were determined conditions of bubble diameter and bubble drag coefficient. Although bubble break-up and coalescence were neglected, the results of numerical simulation are in pretty good agreement with experimental data.

AB - Effect of geometrical parameters on two phase hydrodynamics of airlift reactor is the main topic of present paper. Laboratory scale apparatus with internal circulation loop consists of concentric draft tube, in which a gas bubbles rising. Setup of draft tube inside of reactor is important geometry parameter and has big influence on two phase hydrodynamics. In experiment was studied influence of changes diameter of draft tube to hydrodynamics in airlift reactor. Results of experiments (liquid velocity and gas hold-up) were compared with the simple CFD simulations performed in COMSOL Multiphysics 3.5a. For each point of gas volumetric flow in simulation, were determined conditions of bubble diameter and bubble drag coefficient. Although bubble break-up and coalescence were neglected, the results of numerical simulation are in pretty good agreement with experimental data.

KW - Airlift reactor

KW - Bubbles

KW - CFD simulation

KW - Draft tube

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PB - Elsevier

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Hydrodynamics of airlift reactor with internal circulation loop: Experiment vs. CFD simulation

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