Question

What are the three functional sections present in evaporator?

(a) Heat exchanger, evaporating section

(b) Heat exchanger, separator

(c) Separator, evaporating section

(d) Heat exchanger, evaporating section, separator

I have been asked this question during an interview.

This interesting question is from Single and Multiple Effect Evaporators topic in chapter Evaporation of Food Processing Unit Operations

Answer 1

Correct option is (d) Heat exchanger, evaporating section, separator

For explanation: The evaporator is made up of three functional sections. They are the heat exchanger, the evaporating section, where the liquid boils and evaporates, and the separator in which the vapour leaves the liquid and passes off to the condenser or to other equipment.