Question

What are main advantages of continuous heat exchanger over batch heat exchanger?

(a) Efficiency and cost

(b) Quantity and cost

(c) Efficiency and quality

(d) Efficiency and quantity

This question was addressed to me in a job interview.

My enquiry is from Heat Transfer Applications in chapter Heat Transfer Applications of Food Processing Unit Operations

Answer 1

Correct option is (d) Efficiency and quantity

For explanation I would say: The two important merits of continuous heat exchanger over batch heat exchanger are efficiency and quantity. The efficiency of the continuous heat exchanger depends on the continuous cleaning and calibration. The quantity depends on the feed rate which is higher than the batch process. But continuous heat exchanger is expensive than a batch system.