Q. Log mean temperature difference (LMTD) cannot be used, if

(A) Heat transfer co-efficient over the entire heat exchanger is not constant
(B) There exists an unsteady state
(C) The heat capacity is not constant and there is a phase change
(D) None of these

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✅ Correct Answer: (D) None of these

Published by Mr. Dubey ⭐ 111.54K Points at 20-Sep-2023 12:27 pm in Heat Transfer

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