Estimate the convective heat-transfer coefficient for natural convection from a horizontal steam pipe. The outside surface temperature of the insulated pipe is 80°C. The surrounding air temperature is 25°C. The outside diameter of the insulated pipe is 10 cm.

Estimate the convective heat-transfer coefficient for natural convection from a horizontal steam pipe. The outside surface temperature of the insulated pipe is 80°C. The surrounding air temperature is 25°C. The outside diameter of the insulated pipe is 10 cm.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.30P

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Question

4.16 Estimate the convective heat-transfer coefficient for natural convection from a horizontal
steam pipe. The outside surface temperature of the insulated pipe is 80°C. The
surrounding air temperature is 25°C. The outside diameter of the insulated pipe is 10 cm.

4.17 A vertical cylindrical container is being cooled in ambient air at 25°C with no air circulation.
If the initial temperature of the container surface is 100°C, compute the surface
heat transfer coefficient due to natural convection during the initial cooling period. The
diameter of the container is 1 m, and it is 2m high

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