Enhanced algal growth rate in a Taylor vortex reactor

Bo Kong; Jacqueline V. Shanks; R. Dennis Vigil

doi:10.1002/bit.24886

Enhanced algal growth rate in a Taylor vortex reactor

Bo Kong, Jacqueline V. Shanks, R. Dennis Vigil^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

The rate of production of algal biomass in optically dense photobioreactors depends crucially on the temporal light exposure of microorganisms, which in turn is determined by fluid flow patterns and the quantity and spatial distribution of photosynthetically active radiation. In this report it is demonstrated that highly organized and robust toroidal flow structures known as Taylor vortices cause significant increases in the rate of biomass production, efficiency of light utilization, and CO₂ uptake, and these effects become more pronounced at higher Reynolds numbers. In light of these findings and previously reported experiments using Taylor vortex flow to culture algae, it is argued that the flashing light effect, rather than mass transport effects, is responsible for the observed increases in the rate of photosynthesis.

Original language	English
Pages (from-to)	2140-2149
Number of pages	10
Journal	Biotechnology and Bioengineering
Volume	110
Issue number	8
DOIs	https://doi.org/10.1002/bit.24886
State	Published - Aug 2013
Externally published	Yes

Keywords

Chlorella vulgaris
Flashing light effect
Taylor vortex reactor

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abstract = "The rate of production of algal biomass in optically dense photobioreactors depends crucially on the temporal light exposure of microorganisms, which in turn is determined by fluid flow patterns and the quantity and spatial distribution of photosynthetically active radiation. In this report it is demonstrated that highly organized and robust toroidal flow structures known as Taylor vortices cause significant increases in the rate of biomass production, efficiency of light utilization, and CO2 uptake, and these effects become more pronounced at higher Reynolds numbers. In light of these findings and previously reported experiments using Taylor vortex flow to culture algae, it is argued that the flashing light effect, rather than mass transport effects, is responsible for the observed increases in the rate of photosynthesis.",

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AU - Shanks, Jacqueline V.

AU - Vigil, R. Dennis

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AB - The rate of production of algal biomass in optically dense photobioreactors depends crucially on the temporal light exposure of microorganisms, which in turn is determined by fluid flow patterns and the quantity and spatial distribution of photosynthetically active radiation. In this report it is demonstrated that highly organized and robust toroidal flow structures known as Taylor vortices cause significant increases in the rate of biomass production, efficiency of light utilization, and CO2 uptake, and these effects become more pronounced at higher Reynolds numbers. In light of these findings and previously reported experiments using Taylor vortex flow to culture algae, it is argued that the flashing light effect, rather than mass transport effects, is responsible for the observed increases in the rate of photosynthesis.

KW - Chlorella vulgaris

KW - Flashing light effect

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JO - Biotechnology and Bioengineering

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ER -

Enhanced algal growth rate in a Taylor vortex reactor

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Keywords

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