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Which heat exchanger is most efficient?

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+1 vote
in Food Processing Unit Operations by (110k points)
Which heat exchanger is most efficient?

(a) Parallel flow

(b) Cross flow

(c) Counter flow

(d) Tangent flow

The question was posed to me during an interview.

The above asked question is from Heat Transfer Applications in portion Heat Transfer Applications of Food Processing Unit Operations

1 Answer

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Best answer
Correct choice is (c) Counter flow

Easiest explanation: A counterflow heat exchanger works on the principle that the hot fluid enters at one end of the exchanger and thecold fluid enters at the other end. Counter flow is the widely used in liquid-liquid heat exchanger, as it is the most efficient flow compared to others.

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