Question
Download Solution PDFHeat is lost form a 100 mm diameter steam pipe place horizontally in ambient air at 30 °C. If the Nusselt number is 25 and the thermal conductivity of the air is 0.03 W/m-K, then the heat transfer coefficient will be
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Nusselt Number is given by
Where h is the heat transfer coefficient, Lc is the characteristic length (4A/P) for pipe it is equal to the diameter of the pipe and k is the thermal conductivity of the fluid.
Calculation:
Given D = 100 mm, Nusselt number Nu = 25, Thermal conductivity k = 0.03
⇒ h = 7.5 W/m2-K
Last updated on Jun 23, 2025
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