To cool the hot oil, an engineer has suggested that the oil be pumped through a submerged pipe in a nearby lake. The pipe (external diameter = 20 cm) will be placed in the horizontal direction. The average pipe outer surface temperature is 130 °C. The temperature of the surrounding water is assumed to be constant at 10 °C. Pipe length 150 m. If it is assumed that there is no movement of water. a. Determine the convective heat transfer coefficient of the outer pipe surface to the water. =Answer Watts/ (m² °C) b. Determine the rate of heat transfer from the pipe to the water. =Answer kW

To cool the hot oil, an engineer has suggested that the oil be pumped through a submerged pipe in a nearby lake. The pipe (external diameter = 20 cm) will be placed in the horizontal direction. The average pipe outer surface temperature is 130 °C. The temperature of the surrounding water is assumed to be constant at 10 °C. Pipe length 150 m. If it is assumed that there is no movement of water. a. Determine the convective heat transfer coefficient of the outer pipe surface to the water. =Answer Watts/ (m² °C) b. Determine the rate of heat transfer from the pipe to the water. =Answer kW

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 7.27P

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Question

a. Determine the convective heat transfer coefficient of the outer pipe surface to the water. =Answer
Watts/ (m² °C)

b. Determine the rate of heat transfer from the pipe to the water. =Answer
kW

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