4.8 Article

Comprehensive computational model for combining fluid hydrodynamics, light transport and biomass growth in a Taylor vortex algal photobioreactor: Lagrangian approach

期刊

BIORESOURCE TECHNOLOGY
卷 224, 期 -, 页码 523-530

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.10.080

关键词

Photobioreactors; Taylor-Couette flow; Microalgae; CFD; Simulation; Radiation transport

资金

  1. National Science Foundation [CBET-1236676]
  2. Directorate For Engineering
  3. Div Of Chem, Bioeng, Env, & Transp Sys [1236676] Funding Source: National Science Foundation

向作者/读者索取更多资源

A comprehensive quantitative model incorporating the effects of fluid flow patterns, light distribution, and algal growth kinetics on biomass growth rate is developed in order to predict the performance of a Taylor vortex algal photobioreactor for culturing Chlorella vulgaris. A commonly used Lagrangian strategy for coupling the various factors influencing algal growth was employed whereby results from computational fluid dynamics and radiation transport simulations were used to compute numerous microorganism light exposure histories, and this information in turn was used to estimate the global biomass specific growth rate. The simulations provide good quantitative agreement with experimental data and correctly predict the trend in reactor performance as a key reactor operating parameter is varied (inner cylinder rotation speed). However, biomass growth curves are consistently over-predicted and potential causes for these over-predictions and drawbacks of the Lagrangian approach are addressed. (C) 2016 Elsevier Ltd. All rights reserved.

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