Which of the following has the Log mean temperature difference is used for corrected LMTD for a Shell and tube Heat Exchanger?

Which of the following has the Log mean temperature difference is used for corrected LMTD for a Shell and tube Heat Exchanger? Correct Answer Counter-flow

The mean temperature difference for a counter-flow operation is uniform throughout the length of the tube and hence gives the maximum value to the LMTD. Thus as Ft < 1, we get correct LMTD from this.
Bissoy MCQ

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