4.6 Article

A lumped parameter chemical-physical model for tubular photobioreactors

Journal

CHEMICAL ENGINEERING SCIENCE
Volume 112, Issue -, Pages 116-129

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2014.03.020

Keywords

Photobioreactors; Modeling; Lumped parameter models; Distributed parameter models; Linear models; NARMAX models

Funding

  1. Spanish Ministry of Education [PHB2009-0008]
  2. CNPq-BRASIL [CAPES-DGU 220/2010]
  3. Spanish Ministry of Science and Innovation and EU-ERDF funds [DPI2011-27818-C02-01]
  4. Consejeria de Economia, Innovacion y Ciencia de la junta de Andalucia [Controlcrop 110-TEP-6174]

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This work presents a dynamic lumped parameter model for microalgal production in tubular photo-bioreactors. The model is made up of fluid dynamic processes, mass transfers and biological phenomena, all of them being based on chemical, physical, and biological principles. The aim of this work is to develop a simplified model including the main non-linear dynamics of the process, so that a trade-off between complexity and performance can be found. The model can be used for advanced control purposes, as a tool for the design and operation optimization of photobioreactors, or even as a supervision system of unmeasured variables. The characteristic parameters of the model were calibrated and validated under different conditions of solar radiation, using experimental data from a pilot facility consisting in an outdoor tubular photobioreactor. Furthermore, the proposed model is compared to other existing models (linear, distributed parameters and NARMAX) through a set of detailed simulations. (C) 2014 Elsevier Ltd. All rights reserved.

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