Abstract This review article covers the topics of evaluation and experimental determination oxygen mass transfer coefficients ( k L a ) for their application in characterising bioreactors fermentations processes. The provides comparison different approaches determining bioreactors. Additionally, influence bioreactor design fermentation parameters on is discussed. aim to provide useful informati...

In order to illuminate the effect of the scale on the oxygen transfer in stirred tank reactors, a combined study of the hydrodynamics and the mass transfer has been carried out. The air water system was used to study the behaviour of different impellers against the gas phase and its result in the volumetric mass transfer coefficient. The correct prediction of the rate of oxygen transfer by mean...

In this paper, we analyze the thermal radiation and chemical reaction impacts on MHD peristaltic motion of the Eyring-Powell fluid through a porous medium in a channel with compliant walls under slip conditions for velocity, temperature, and concentration. Assumptions of a long wave length and low Reynolds number are considered. The modeled equations are computed by using the perturbation metho...