A new control strategy to improve the mass transfer capacity and reduce air injection costs in raceway reactors

被引：5

作者：

Barcelo-Villalobos, Marta ^{[1
]}

Hoyo, Angeles ^{[1
]}

Rodriguez-Miranda, Enrique ^{[1
]}

Guzman, Jose Luis ^{[1
]}

Acien, Francisco Gabriel ^{[2
]}

机构：

[1] Univ Almeria, Dept Informat, CIESOL, ceiA3, Ctra Sacramento s-n, Almeria, Spain

[2] Univ Almeria, Dept Chem Engn, CIESOL, ceiA3, Ctra Sacramento s-n, Almeria, Spain

来源：

NEW BIOTECHNOLOGY | 2022年 / 70卷

关键词：

Microalgae; Raceway; Oxygen accumulation; Process control; Transfer capacity; Gas injection efficiency; PREDICTIVE CONTROL; DYNAMIC-MODEL; MICROALGAE; PH;

D O I：

10.1016/j.nbt.2022.04.005

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Raceway reactors are still the most extensive technology for microalgae production. However, these reactors have some drawbacks, one of them being a low mass transfer capacity, which provokes dissolved oxygen accumulation and thus reduction of system performance. To overcome this problem, it is imperative to improve the photobioreactor design as well as the operating conditions. One solution is to maintain the dissolved oxygen below defined limits. In this work, a new control algorithm is proposed to improve the mass transfer capacity of raceway reactors while at the same time reducing air injection costs. The main idea of the proposed control approach is that only the necessary amount of airflow will be applied according to transfer capacity demand. This control strategy was first analyzed in simulation and compared with classical On/Off solutions, and subsequently evaluated in outdoor conditions in a photobioreactor of 80 m(2).

引用

页码：49 / 56

页数：8

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