A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter 'd'. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to A)d^0.8 B)d^-0.2 C)d^-1 D)d^-1.8

Question

Quizplus · Accepted Answer

For turbulent flow, the heat transfer coefficient is inversely proportional to the diameter raised to the power of 0.2, as per the Dittus-Boelter equation.

A Fluid Is Flowing Inside the Inner Tube of a Double