Fig. 3
From: Enhancement of microalgal CO2 fixation in photobioreactors by means of spiral flow vortices
Effects of portable conical helix baffles on mixing time and mass transfer coefficient in the column PBRs. A Effects of size of baffles on mixing time. B Effects of number of baffles on mixing time. C Effects of aeration rate on mixing time. D Effects of size of baffles on mass transfer coefficient. E Effects of number of baffles on mass transfer coefficient. F Effects of aeration rate on mass transfer coefficient. Note: The mixing time was 15.48Â s and mass transfer coefficient was 1.79 per hour in traditional column PBR unmodified with baffles