Question

What are the principle functions of evaporator?

(a) Heat exchanger and separator

(b) Heat exchanger

(c) Heat exchanger

(d) Evaporate

I had been asked this question in an internship interview.

This interesting question is from Heat Transfer in Evaporators topic in portion Evaporation of Food Processing Unit Operations

Answer 1

Correct option is (a) Heat exchanger and separator

To elaborate: Heat exchanger and separator are the two main principle functions of evaporator. Evaporation is used to pre-concentrate food, to increase the solid content of food and to reduce the water content of a liquid product.