Question

Consider the scale up of a fermentation process from a 10 to 10000 vessel. The small fermenter has a height to diameter ratio of 3:1. The impeller diameter is 30% of the tank diameter. Agitator speed is 500 rpm and three Rushton impellers are used. Determine the agitator speed for:
1) Constant P/V
ii) Constant Impeller tip speed (ND)
il) Constant Reynolds number (N)​

Answer 1

Answer:

I think ii) Constant Impeller tip speed (ND)

Explanation:

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