Event-Based Control Systems for Microalgae Culture in Industrial Reactors

Pawłowski, A.; Guzmán, José Luís; Berenguel, Manuel; Acién, F.G.; Dormido, Sebastián

doi:10.1007/978-981-10-1950-0_1

Cited by 7 publications

(3 citation statements)

References 67 publications

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“…The proper aeration system design also determines the overall performance of the aeration system. [11][12][13] Therefore, if pH and dissolved oxygen are adequately controlled, they will not reduce microalgae productivity. Thus, light availability and temperature are the most crucial factors in outdoor microalgae systems.…”

Section: Introductionmentioning

confidence: 99%

A seasonal simulation approach for culture depth influence on the temperature for different characterized microalgae strains

Rodríguez-Miranda

Sánchez-Zurano

Guzmán

et al. 2022

Biotechnology Journal

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Irradiance and temperature are among the most important variables that affect microalgae growth, being both difficult to control in outdoor raceway reactors utilized for large-scale production of microalgae biomass. They are mainly a function of the location of the reactors, thus, producing certain strains of microalgae in inappropriate places conduces to the failure of the systems. To be able to determine important parameters of any microalgae strains on the performance of the culture, such as the influence of irradiance and temperature, is a powerful tool in decision-making processes.In addition, whatever the strain and location, operation strategies must be defined for each specific case, such as the imposed dilution rate and culture depth, both influencing the light availability and temperature of the culture as major variables determining the biomass productivity. In this paper, a simulation-based methodology is proposed to establish the influence of season and culture depth on the 1-year age irradiance and temperature of the culture, and thus on the biomass productivity of different microalgae strains. Up to five of the most frequently produced strains, such as Spirulina platensis, Chlorella vulgaris, Nannochloropsis gaditana, Isochrysis galbana, and Scenedesmus almeriensis have been considered. The challenge is to develop an easy-to-manage decisionmaking tool for the optimal design and operation of large-scale microalgae facilities.Especially, dates for microalgae production and culture depth at which the reactors must be operated will be provided, being valid for any microalgae strain. The proposed methodology will largely contribute to the risk of investment in this field, then to enlarge the relevance of the microalgae production industry.

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Section: Introductionmentioning

confidence: 99%

A seasonal simulation approach for culture depth influence on the temperature for different characterized microalgae strains

Rodríguez-Miranda

Sánchez-Zurano

Guzmán

et al. 2022

Biotechnology Journal

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“…En base a estas características, el problema de control del pH ha suscitado un gran interés en la comunidad científica existiendo numerosos resultados tanto para fotobioreactores abiertos como cerrados. Es posible encontrar soluciones basadas control todo/nada (Pawlowski et al, 2017), control PID (Fernández et al, 2010), control predictivo (Berenguel et al, 2004;Hoyo et al, 2019b), control en modo deslizante (de Andrade et al, 2016b), control basado en eventos (Pawlowski et al, 2014;, control robusto (Hoyo et al, 2018) o control con rechazo activo de perturbaciones (Carreño-Zagarra et al, 2019). En losúltimos trabajos desarrollados, el control basado en eventos ha presentado un resultado muy satisfactorio permitiendo un balance adecuado entre rendimiento de control y reducción de costes y/o pérdidas al medioambiente.…”

Section: Otros Modelosunclassified

Modelado y control de la producción de microalgas en fotobiorreactores industriales

Guzmán

Acién

Berenguel

2020

Rev. iberoam. autom. inform. ind.

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<p>Este artículo presenta una visión general sobre el proceso de producción de microalgas desde un punto de vista de modelado y control de procesos. En primer lugar se exponen las ventajas y el potencial de este tipo de microorganismos, así como los distintos tipos de reactores que se suelen utilizar para su producción. Posteriormente, se analiza el comportamiento dinámico de este tipo de procesos, el cual es muy complejo y cambiante debido a variaciones en las condiciones ambientales tanto diarias como anuales, y se presentan los distintos balances que permiten describir la evolución de las principales variables del sistema. Se exponen distintos tipos de modelos a nivel biológico y a nivel estructural que han sido validados a escala industrial. Tras analizar su comportamiento dinámico, se motivan los distintos problemas de control existentes en este tipo de sistemas y se resume una amplia batería de estrategias de control que han sido evaluadas con éxito en fotobiorreactores industriales. Finalmente, se concluye el trabajo con un balance de los aspectos más importantes expuestos a lo largo del mismo.</p>

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“…Developing an integrated system that combines wastewater treatment, carbon dioxide sequestration, and biomass feedstock generation for diverse applications by employing microalgae is receiving a lot of attention these days [ 1 , 2 ] Several phytoplanktonic unialgal culture systems and the performance of different kinds of photobioreactors have been evaluated also in this regard [ [3] , [4] , [5] , [6] ]. However, maintaining a unialgal culture system and harvesting tiny planktonic microalgae are two major constraints that prohibit the large-scale application of any such approach [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Cultivation of algal biofilm and mat communities from the Garhwal Himalayas for possible use in diverse biotechnological applications

Kumari,

Kumar

2024

Heliyon

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Event-Based Control Systems for Microalgae Culture in Industrial Reactors

Cited by 7 publications

References 67 publications

A seasonal simulation approach for culture depth influence on the temperature for different characterized microalgae strains

A seasonal simulation approach for culture depth influence on the temperature for different characterized microalgae strains

Modelado y control de la producción de microalgas en fotobiorreactores industriales

Cultivation of algal biofilm and mat communities from the Garhwal Himalayas for possible use in diverse biotechnological applications

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