Hydrodynamic design of an enclosed Horizontal BioReactor (HBR) for algae cultivation

Pirasaci, Tolga; Manisali, Ahmet Y.; Dogaris, Ioannis; Philippidis, George P.; Sunol, Aydın K.

doi:10.1016/j.algal.2017.10.009

Cited by 18 publications

(8 citation statements)

References 33 publications

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“…In contrast to a conventional closed PBR, mixing in a floating PBR can utilize energy provided by free waves. Nevertheless, most floating systems that have been developed to date have utilized the same mixing devices as land-based PBRs, including gas bubbling systems [ 26 ], paddlewheels [ 27 ] and circulation pumps [ 28 ]. Apart from the devices’ intensive energy requirements, these mixing devices also limit the potential for scale-up of PBR-based cultivation [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic performance of floating photobioreactors driven by wave energy

Zhu

Chi

et al. 2019

Biotechnol Biofuels

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BackgroundUnlike conventional cultivation systems, liquid mixing in floating photobioreactors (PBRs) is solely induced by their hydrodynamic movement in response to waves, and this movement is affected by the wave conditions (wave height and wave period), the PBR configuration and the culture depth. However, to the best of our knowledge, a practical study of the hydrodynamic movements of PBRs has not been previously conducted.ResultsThis study aims to investigate the hydrodynamic performance of floating PBRs in response to wave conditions. First, the effects of the experimental wave height (2–10 cm) and wave period (0.8–1.8 s) on movement was investigated using two 1.0 m2 PBR models: a square PBR (1.0 m/1.0 m; length/width) and a rectangular PBR (1.7 m/0.6 m). The results indicated that wave movement became not only more intense with increasing wave height, but also less intense when the wave period decreased. However, the square PBR experienced more intense movement than the rectangular PBR, but also little mooring force. The effects of culture depth (0.5, 1.0 and 2.0 cm) were investigated and the results showed that the culture depth significantly affected the hydrodynamic movements of the PBRs; however, the mooring forces were unaffected. Finally, the movement and mooring-line forces of PBRs equipped with different mooring systems were investigated. The use of two different mooring systems had little effect on PBR movement; however, a mooring system with floaters was able to significantly reduce the mooring line forces compared to a system without floaters. During this study, the greatest force (10.5 N) was found for the rectangular PBR using a mooring system without floaters, whereas the lowest force (0.67 N) was observed for a rectangular PBR using a mooring system with floaters.ConclusionsThese studies have provided basic data describing the fluid dynamics of floating PBRs; as well as their structural design and scale up. These results also provide guidance for the selection of ocean fields with suitable wave conditions; as well as a proper mooring methods to ensure safe operation.

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Section: Introductionmentioning

confidence: 99%

Hydrodynamic performance of floating photobioreactors driven by wave energy

Zhu

Chi

et al. 2019

Biotechnol Biofuels

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“…The Source Domain (SD) model, adapted from the Actuator Disk Theory [30], is here proposed to solve the flow in the RPR under steady state conditions. In this method, the geometry of the paddle wheel was removed from the numerical domain, and the motion of the paddle wheel was modeled numerically using user-defined and time-averaged sources of momentum and turbulent kinetic energy.…”

Section: Source Domain (Sd) Modelmentioning

confidence: 99%

Computational fluid dynamics (CFD) modeling of removal of contaminants of emerging concern in solar photo-Fenton raceway pond reactors

Moreira

Cabrera‐Reina

Molina

et al. 2021

Chemical Engineering Journal

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“…Since the invention of submerged fermentation, bioreactors have found wide applications in diverse fields including wastewater treatment in the environmental protection sector, cell culture and tissue engineering in the healthcare sector, the Abbreviations: µSI, micro sequential injection; A/D, analog/digital; AI, artificial intelligence; ALE, adaptive laboratory evolution; BLSS, Bioregenerative Life Support System; CMOS, complementary metal-oxide semiconductor; D/A, digital/analog; DCS, distributed control system; DIY, do-it-yourself; DO, dissolved oxygen; DOE, design of experiment; DoS, denial of service; FCS, fieldbus control system; FF, Foundation Fieldbus; FIA, flow injection analysis; FOCS, flat organizational control system; HSCS, hierarchical structure control system; IoT, Internet of Things; KBCS, knowledge-based control system; MES, manufacturing execution system; MEMS, microelectromechanical system; NCS, networked control system; NIR, near-infrared; OD, optical density; OS, operating system; PAT, process analytical technique; PTR-ToF-MS, proton transfer reaction with a time-of-flight mass spectrometer; PID, proportional-integral-derivative; PLC, programmable logical controller; Pt_rGO, Pt-decorated reduced graphene oxide; RFID, radio frequency identification; UPLC, ultra-performance liquid chromatography; VHM, valve health monitor. production of high-value pharmaceuticals and bulk chemicals in industrial biotechnology, and even the cultivation of algae for oxygen generation in space exploration (Li X. et al, 2016;Pirasaci et al, 2017;Zhuo et al, 2018;Christoffersson and Mandenius, 2019). Strong demand for various applications stimulated progress in bioreactor structure design to fulfill specific purposes, such as solid-state fermentation bioreactors used in the Chinese alcoholic beverage (Baijiu) brewing industry, anaerobic membrane bioreactors for wastewater treatment, classic tank bioreactors used in the fermentation industry, and the recently developed inexpensive single-use bioreactors for the small-scale production of high-value biological pharmaceuticals (Zhuo et al, 2018;Fang et al, 2019;Metze et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Development of Novel Bioreactor Control Systems Based on Smart Sensors and Actuators

Wang

Chen

et al. 2020

Front. Bioeng. Biotechnol.

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Bioreactors of various forms have been widely used in environmental protection, healthcare, industrial biotechnology, and space exploration. Robust demand in the field stimulated the development of novel designs of bioreactor geometries and process control strategies and the evolution of the physical structure of the control system. After the introduction of digital computers to bioreactor process control, a hierarchical structure control system (HSCS) for bioreactors has become the dominant physical structure, having high efficiency and robustness. However, inherent drawbacks of the HSCS for bioreactors have produced a need for a more consolidated solution of the control system. With the fast progress in sensors, machinery, and information technology, the development of a flat organizational control system (FOCS) for bioreactors based on parallel distributed smart sensors and actuators may provide a more concise solution for process control in bioreactors. Here, we review the evolution of the physical structure of bioreactor control systems and discuss the properties of the novel FOCS for bioreactors and related smart sensors and actuators and their application circumstances, with the hope of further improving the efficiency, robustness, and economics of bioprocess control.

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Hydrodynamic design of an enclosed Horizontal BioReactor (HBR) for algae cultivation

Cited by 18 publications

References 33 publications

Hydrodynamic performance of floating photobioreactors driven by wave energy

Hydrodynamic performance of floating photobioreactors driven by wave energy

Computational fluid dynamics (CFD) modeling of removal of contaminants of emerging concern in solar photo-Fenton raceway pond reactors

Development of Novel Bioreactor Control Systems Based on Smart Sensors and Actuators

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