Comparison of arithmetic mean temperature difference & LMTD - Heat Transfer

Q.  How can the arithmetic mean temperature difference and LMTD of a same heat exchanger be compared?
- Published on 12 Aug 15

a. the arithmetic mean temperature difference is less than LMTD of a same heat exchanger
b. the arithmetic mean temperature difference is more than LMTD of a same heat exchanger
c. the arithmetic mean temperature difference and LMTD of a same heat exchanger are equal
d. none of the above

ANSWER: the arithmetic mean temperature difference is more than LMTD of a same heat exchanger

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