Publication detail
Sensitivity study of a bubble size on mass transfer in a CFD model of a bubble-column photobioreactor
REBEJ, M. VONDÁL, J. JUŘENA, T. NAĎ, M. JEGLA, Z.
English title
Sensitivity study of a bubble size on mass transfer in a CFD model of a bubble-column photobioreactor
Type
conference paper
Language
en
Original abstract
The paper deals with the flue gas as a potential nutrient source for microalgae cultivation in photobioreactors. In numerical analyses, the vertical tubular photobioreactor was aerated with an aeration gas modelled through different bubble sizes. This had yielded differences in mass transfer coefficients and interphase areas. The range of bubble diameters extended from -20 % to +20 % from the original bubble diameter 4.50 mm found in the experiment. The assessment of the time to reach the saturated state and the volumetric mass transfer rate did not reveal any discrepancies from analytical predictions. However, even the smallest bubbles did not follow the initial drop of CO2 volume fraction found in the experiments.
English abstract
The paper deals with the flue gas as a potential nutrient source for microalgae cultivation in photobioreactors. In numerical analyses, the vertical tubular photobioreactor was aerated with an aeration gas modelled through different bubble sizes. This had yielded differences in mass transfer coefficients and interphase areas. The range of bubble diameters extended from -20 % to +20 % from the original bubble diameter 4.50 mm found in the experiment. The assessment of the time to reach the saturated state and the volumetric mass transfer rate did not reveal any discrepancies from analytical predictions. However, even the smallest bubbles did not follow the initial drop of CO2 volume fraction found in the experiments.
Keywords in English
Photobioreactor;Multiphase fluid flow;Mass transfer;CFD;Bubble diameter
Released
09.05.2022
Publisher
Brno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics
Location
Brno, Czech Republic
ISBN
978-80-86246-48-2
ISSN
1805-8256
Book
ENGINEERING MECHANICS 2022
Volume
27/28
Number
1
Edition number
1
Pages from–to
329–332
Pages count
4
BIBTEX
@inproceedings{BUT178274,
author="Miroslav {Rebej} and Jiří {Vondál} and Tomáš {Juřena} and Martin {Naď} and Zdeněk {Jegla},
title="Sensitivity study of a bubble size on mass transfer in a CFD model of a bubble-column photobioreactor",
booktitle="ENGINEERING MECHANICS 2022",
year="2022",
volume="27/28",
number="1",
month="May",
pages="329--332",
publisher="Brno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics",
address="Brno, Czech Republic",
isbn="978-80-86246-48-2",
issn="1805-8256"
}