Two-Step Modeling for Growth of Microorganisms in Stirred Tank Photobioreactor
- 38 Downloads
The objective of the present work is to implement the two-time-step approach to determine the growth rate of the photosynthetic microorganisms such as microalgae and cyanobacteria, in a stirred tank photobioreactor. The light intensity distribution is obtained from the CFD simulations for different concentration of the microorganisms in the photobioreactor. The average light intensity is determined in the reactor for different cell concentrations in the culture. The photosynthetic rate is determined using the average light intensity in the reactor for different initial cell concentrations. The mean growth rate of the cyanobacteria in the log phase, i.e., the nutrient abundant condition is compared with the experimental observation.
KeywordsMicroalgae Cyanobacteria Light intensity Multiphase Stirred tank photobioreactor
This work is supported by DBT through DBT-PAN IIT project (14DBTPAN005). The authors thank the head, computer center, IIT Bombay for providing the license of Ansys Fluent for the computational facility. We would also like to thank John Hendry from Biotechnology Laboratory from the Department of Chemical Engineering, IIT Bombay, who helped us in this work.
- 14.F. Mairet, O. Bernard, T. Lacour, A. Sciandra, Modelling microalgae growth in nitrogen limited photobiorector for estimating biomass, carbohydrate and neutral lipid productivities. 18th IFAC World Congr. IFAC Proc. Vol., 44(1), 10591–10596 (2011)Google Scholar
- 21.Applikon bioreactor applikon biotechnology Homepage, http://www.applikon-bio.com/en/. Last Accessed 25 July 2017
- 22.J.I. Hendry, C.B. Prasannan, A. Joshi, S. Dasgupta, P.P. Wangikar, Metabolic model of synechococcus sp. PCC 7002: prediction of flux distribution and network modification for enhanced biofuel production. Bioresource Technol. 213, 190–197 (2016)Google Scholar
- 24.R.K. Saini, CFD Based analysis of flow phenomena in disc and doughnut pulsed column and stirred tank photobioreactor, IIT Bombay, Mumbai-India, 2017 (unpublished doctoral thesis)Google Scholar