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GATE2016-20

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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 $= 5$

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