Question

What is the width of baffle in order of the tank diameter used for mixing?

(a) 1/5- 1/10

(b) 1/12-1/15

(c) 1/10-1/12

(d) 1/5-1/12

The question was asked during an online interview.

The above asked question is from Mixing in chapter Fluid Flow and Mixing of Bioprocess Engineering

Answer 1

The correct answer is (c) 1/10-1/12

To explain: The optimum baffle width depends on the impeller design and fluid viscosity but is of the order 1/10-1/12 the tank diameter.