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Which type of Shell and tube heat exchanger does the below temperature plot correctly represent?

Which type of Shell and tube heat exchanger does the below temperature plot correctly represent? Correct Answer 2-4 Shell and Tube

In the given plot, we can observe the temperature has three elbows, that means it takes three turns(4 tubes) while its temperature increases in the tube side while its shell side observes only one turn(2 sections). Hence we can easily infer from this that it is a 2-4 shell and tube HE.

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