10 m long pipe is being used to deliver steam through a processing plant. The inner radius of the pipe is r, = 6 cm and the thickness of the pipe is 2 cm. Thermal conductivity k = 8 W/m K and the average temperature steam flowing through the pipe is 160°C, the average convection heat transfer coefficient on the inner surface is given to be h = 20 W/m2 K. If the average temperature on the outer surfaces of the pipe is T, = 70°C, (a) express the differential equation and the boundary conditions for steady operating conditions, (b) determine a relation for the variation of temperature in the pipe, and (c) evaluate the rate of heat loss (heat of conduction) from the steam through the pipe.

10 m long pipe is being used to deliver steam through a processing plant. The inner radius of the pipe is r, = 6 cm and the thickness of the pipe is 2 cm. Thermal conductivity k = 8 W/m K and the average temperature steam flowing through the pipe is 160°C, the average convection heat transfer coefficient on the inner surface is given to be h = 20 W/m2 K. If the average temperature on the outer surfaces of the pipe is T, = 70°C, (a) express the differential equation and the boundary conditions for steady operating conditions, (b) determine a relation for the variation of temperature in the pipe, and (c) evaluate the rate of heat loss (heat of conduction) from the steam through the 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 7.4P

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