A

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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
  • Correct Answer - Option(D)
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  • Filed under category Heat Transfer
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