Development and application of a comprehensive numerical simulation model for microalgal pneumatic photobioreactors

IF 9.7 1区环境科学与生态学 Q1 AGRICULTURAL ENGINEERING

Bioresource Technology Pub Date : 2025-02-01 DOI:10.1016/j.biortech.2024.131962

Ruofan Wang , Xiaobo Yao , Raphael Semiat , Bo Kong

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Abstract

A novel and comprehensive multiphysics numerical simulation model for microalgal pneumatic photobioreactors was developed using the open-source Computational Fluid Dynamics (CFD) software OpenFOAM. This model integrates three distinct submodels: multiphase fluid dynamics, light transport, and microalgae growth. In particular, the light transport submodel accounts for light scattering caused by air bubbles. The model effectively addressed the challenges associated with the disparate time scales of the submodels, and its accuracy was validated by comparing with several experiments in different configurations. This study focuses on how an outdoor flat plate photobioreactor can maximize solar energy utilization. The results indicate that the daily productivity of the light-intensity adaptive reactor increased by 12.31 % to 26.31 % compared to those at constant biomass concentrations, demonstrating significant potential for employing this model in conjunction with automated systems to enhance productivity.

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微藻气动光生物反应器综合数值模拟模型的开发与应用。

利用开源计算流体力学（CFD）软件OpenFOAM，建立了微藻气动光生物反应器的综合多物理场数值模拟模型。该模型集成了三个不同的子模型：多相流体动力学、光传输和微藻生长。特别是，光输运子模型考虑了气泡引起的光散射。该模型有效地解决了子模型时间尺度不同带来的挑战，并通过不同配置下的实验验证了模型的准确性。本研究的重点是户外平板光生物反应器如何最大限度地利用太阳能。结果表明，与恒定生物量浓度下相比，光强自适应反应器的日生产率提高了12.31%至26.31%，表明将该模型与自动化系统结合使用具有显著的提高生产率的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bioresource Technology 工程技术-能源与燃料

CiteScore

20.80

自引率

19.30%

发文量

2013

审稿时长

12 days

期刊介绍： Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies. Topics include: • Biofuels: liquid and gaseous biofuels production, modeling and economics • Bioprocesses and bioproducts: biocatalysis and fermentations • Biomass and feedstocks utilization: bioconversion of agro-industrial residues • Environmental protection: biological waste treatment • Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.