Analysis of productivity in raceway photobioreactor using computational fluid dynamics particle tracking coupled to a dynamic photosynthesis model
Open accessAbstract
Raceway photobioreactors (RWPs) are the most common and affordable device for the mass culture of microalgae but due to geometry and the requirement of low input power, its photosynthetic performance is low. The fluid dynamics of RWPs have been studied for information such as energy dissipation and shear rate, CFD has never been used to analyze photosynthesis efficiency by coupling dynamic photosynthesis models with microalgae trajectories. In this work, we investigate by CFD simulation the effect of circulation velocities between 0.2 and 0.8 m s-1in a 0.15 m−1 deep RWPs under standard outdoor conditions to shows that in all circumstances the RWP from the point o view of photosynthesis operates as a perfectly segregated device (no mixing) and that the average growth rate is the result of the integration of the local growth rates at different depths (integration factor Γ = 0).
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The purpose of the listed models covers a variety of applications, including mechanistic understanding, investigations on flashing-light effect, design optimization, and optimization of operating conditions.
“The purpose of the listed models covers a variety of applications, including the mechanistic understanding of photobioreactors [17-21], investigations on the flashing-light effect [22-31], photobioreactor design optimization [21,22,29,32-42] and optimization of operating conditions [26,34-36,43-45].”
From Modeling and Simulation of Photobioreactors with Computational Fluid Dynamics—A Comprehensive Review (2022) · cites this paper as [23]
One can mainly distinguish between two approaches for light transfer modeling: one-dimensional model equations and the Radiative Transfer Equation (RTE).
“One can mainly distinguish between two approaches: firstly, one-dimensional model equations which enable quick and simple estimates of the light intensity with respect to the distance from the light source [23,24,31,36,39,41,43,125] and secondly, the Radiative Transfer Equation (RTE) [18,26-28,34], whose solution requires the application of numerical methods.”
From Modeling and Simulation of Photobioreactors with Computational Fluid Dynamics—A Comprehensive Review (2022) · cites this paper as [23]
Microalgae cells are mostly modeled as discrete objects in photobioreactor CFD models.
“In contrast, microalgae cells are mostly modeled as discrete objects [23,24,26-29,31,34,36-38,136].”
From Modeling and Simulation of Photobioreactors with Computational Fluid Dynamics—A Comprehensive Review (2022) · cites this paper as [23]
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Modeling and Simulation of Photobioreactors with Computational Fluid Dynamics—A Comprehensive Review
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- Authors
- Fernández del Olmo, P., Acién, F. G., & Fernández-Sevilla, J. M.
- Affiliations
- University of Almería (ES)
- Corresponding author
- Fernández-Sevilla, J.M.
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2021-08
- Volume
- 334
- Pages
- 125226
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W3158926892
- Cited by
- 20
- References
- 37
- Citations by year
- 2026: 2 · 2025: 1 · 2024: 8 · 2023: 7 · 2022: 1 · 2021: 1
- FWCI
- 0.80
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Bioresource Technology (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- Repositorio de Patentes de la Universidad de Almería (Universidad de Almería) (submittedVersion, other-oa)
- Funders
- Ministry of Economic Affairs and Digital Transformation
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Physical Sciences › Engineering › Biomedical Engineering › Fluid Dynamics and Mixing
- Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
- Keywords
- raceway photobioreactor, microalgae cultivation, photosynthetic efficiency, circulation velocity, shear rate, energy dissipation
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