Inner diameter 30 cm, outer diameter 40 cm and heat conduction coefficient 20 W / m ∙ a cylindrical pipe with oC Take it. 25 W / m3 uniformly on the pipe wall There is a constant rate of heat generation. Tube inner surface temperature 75 oC and outer surface temperature is 95oC.

Inner diameter 30 cm, outer diameter 40 cm and heat conduction coefficient 20 W / m ∙ a cylindrical pipe with oC Take it. 25 W / m3 uniformly on the pipe wall There is a constant rate of heat generation. Tube inner surface temperature 75 oC and outer surface temperature is 95oC.

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.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.25P: Show that the rate of heat conduction per unit length through a long, hollow cylinder of inner...

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Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

Inner diameter 30 cm, outer diameter 40 cm and heat conduction coefficient 20 W / m ∙

a cylindrical pipe with oC

Take it. 25 W / m3 uniformly on the pipe wall

There is a constant rate of heat generation. Tube inner surface

temperature 75

oC and outer surface temperature is 95oC.

a) Obtain a general correlation for the temperature distribution in the pipe (steady state).

b) Calculate the temperature at the midpoint of the pipe wall.

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