Hot water at 98°C flows through a 2-in schedule 40 horizontal steel pipe [k 54 W/m C] and is exposed to atmospheric air at 20°C. The water velocity is 25 cm/s. Calculate the overall heat- transfer coeficient for this situation, based on the outer area of pipe.

Hot water at 98°C flows through a 2-in schedule 40 horizontal steel pipe [k 54 W/m C] and is exposed to atmospheric air at 20°C. The water velocity is 25 cm/s. Calculate the overall heat- transfer coeficient for this situation, based on the outer area of pipe.

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.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.55P

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Hot water at 98°C flows through a 2-in schedule 40 horizontal steel pipe [k 54 W/m °C] and
is exposed to atmospheric air at 20°C. The water velocity is 25 cm/s. Calculate the overall heat-
transfer coeficient for this situation, based on the outer area of pipe.

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