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@INPROCEEDINGS{Loomba:827104,
author = {Loomba, Varun and Huber, Gregor and von Lieres, Eric},
title = {{C}omputational analysis of hydrodynamics and light
distribution in photo-bioreactors for algae biomass
production},
school = {RWTH Aachen},
reportid = {FZJ-2017-01302},
year = {2016},
abstract = {Microalgae can be directly used in health food or as
bio-filters for waste water treatment. They also have
numerous commercial applications in cosmetics, aquaculture
and chemical industry as a source of highly valuable
molecules, e.g., polyunsaturated fatty acids [1]. Moreover,
they are increasingly recognized as a promising source for
biodiesel production [2]. To realize the full potential of
microalgae, optimal operating conditions for their
cultivation in photo-bioreactors (PBR) need to be identified
in order to maximize productivity, lipid content, and
efficiency of photosynthesis. The most important parameters
affecting PBR performance are reactor shape, light intensity
distribution, algae growth and other metabolic
properties.The presented study aims at optimizing these
parameters using Computational Fluid Dynamics (CFD)
simulations with the COMSOL Multiphysics software.
Specifically, flat panel photo-bioreactors with turbulent
mixing due to air sparging and one-sided lighting are
studied. First, flow profiles of both liquid and gas phases
are computed using the Turbulent Bubbly Flow approach for
analyzing the air sparging and detecting potential dead
zones for different shapes of flat panel PBR. Then, light
intensity distributions are calculated inside the PBR, based
on absorption and light scattering by algae and gas bubbles.
Subsequently, the Particle Tracing module is used to
determine the paths of individual algae cells and the
environmental conditions they are exposed to are recorded
over time, in particular aeration and light intensity.
Results of the above described simulation stages will be
presented and discussed.[1] Spolaore et al.: Commercial
applications of microalgae, J. Biosci. Bioeng. 101 (2006):
87-96.[2] Bitog et al.: Application of computational fluid
dynamics for modeling and designing photobioreactors for
microalgae production: A review, Comput. Electron. Agr. 76
(2011): 131-147.},
month = {Oct},
date = {2016-10-12},
organization = {COMSOL Conference 2016, Munich
(Germany), 12 Oct 2016 - 14 Oct 2016},
subtyp = {After Call},
cin = {IBG-2 / IBG-1},
cid = {I:(DE-Juel1)IBG-2-20101118 / I:(DE-Juel1)IBG-1-20101118},
pnm = {89582 - Plant Science (POF2-89582) / 89581 - Biotechnology
(POF2-89581)},
pid = {G:(DE-HGF)POF2-89582 / G:(DE-HGF)POF2-89581},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/827104},
}