A plane wall is a composite of two materials, A and B. The wall of material A (k = 75 W/m K) has uniform heat generation 1.5 X 106 W/m3, and thickness 50 mm. The wall material B has no generation with (k = 150 W/m K) and thickness 20 mm. The inner surface of material A is well insulated, while the outer surface of material B is cooled by a water stream with 30°C and heat transfer coefficient 1000 W/m2 K. 1.Sketch the temperature distribution that exists in the composite under steady-state conditions. 2.Determine the maximum temperature T1 of the insulated surface and the temperature of the cooled surface T2.

A plane wall is a composite of two materials, A and B. The wall of material A (k = 75 W/m K) has uniform heat generation 1.5 X 106 W/m3, and thickness 50 mm. The wall material B has no generation with (k = 150 W/m K) and thickness 20 mm. The inner surface of material A is well insulated, while the outer surface of material B is cooled by a water stream with 30°C and heat transfer coefficient 1000 W/m2 K. 1.Sketch the temperature distribution that exists in the composite under steady-state conditions. 2.Determine the maximum temperature T1 of the insulated surface and the temperature of the cooled surface T2.

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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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.

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1.Sketch the temperature distribution that exists in the composite under steady-state conditions.

2.Determine the maximum temperature T1 of the insulated surface and the temperature of the cooled surface T2.

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