Vidyalelo
Chemical Engineering · Q283

Mechanical Operations

Engineering and GATE · Chemical Engineering · question 283

Q283

At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3D5: Power number Re = ρ ND2/μ: Reynold's number N is the impeller rotational speed and D is the impeller diameter.

A.
Po ∝ Re-1.0
B.
Po ∝ Re0.0
Answer
C.
Po ∝ Re0.5
D.
Po ∝ Re1.0

Answer: Option B

Solution

Answer: Option B
No explanation is given for this question Let's Discuss on Board