Microcarrier beads 120 μm in diameter are used to culture recombinant CHO cells for production of growth hormone. It is proposed to use a 6-cm turbine impeller to mix the culture in a 3.5-1itre stirred tank. Air and carbon dioxide are supplied by flow through the reactor headspace. The microcarrier suspension has a density of approximately 1010 kg m^-3 and a viscosity of 1.3 x 10^-3 Pa s. Estimate the kinematic viscosity.
(a) 1.30 × 10^-6 m^2s^-1
(b) 1.29 × 10^-6 m^2s^-1
(c) 1.50 × 10^-6 m^2s^-1
(d) 1.49 × 10^-6 m^2s^-1
I had been asked this question in an interview for internship.
I want to ask this question from Role of Shear in Stirred Fermenters topic in chapter Fluid Flow and Mixing of Bioprocess Engineering