The power required for agitation of non-aerated medium in fermentation is ___________kW.
Operating conditions are as follows:
Fermentor diameter $= 3$ m
Number of impellers $= 1$
Mixing speed $= 300$ rpm
Diameter of the Rushton turbine $= 1$ m
Viscosity of the broth $= 0.001$ Pa.s
Density of the broth $= 1000$ kg.m$^{-3}$
Power number $= 5$