Question

External heat exchangers are gaining popularity as they’ve several advantages over conventional methods. Still, there is a major drawback. Which among the following is it?

(a) Some shear-sensitive cells might get damaged due to abrasion

(b) It is difficult for pumps to withstand high temperature without leakages of the fluid

(c) All of the mentioned

(d) None of the mentioned

This question was addressed to me in an online interview.

The query is from Unit Operations in portion Heat Transfer Equipment, Microwave Heating, Evaporation, Diffusion and Mass Transfer and Dehydration of Food Engineering

Answer 1

The correct answer is (c) All of the mentioned

To elaborate: External heat exchangers are gaining popularity as they’ve several advantages over conventional methods. Still, there are drawbacks like some shear-sensitive cells might get damaged due to abrasion. Also, it is difficult for pumps to withstand high temperature without leakages of the fluid.