kW of heat transfer occurs over an insulation material with a cross-sectional area of 10 m2 and a thickness of 2.5 cm. Since the temperature of the inner surface is 415 ºC and the thermal conductivity of the material is 0.2 W/ m.K, calculate the temperature of the outer surface

kW of heat transfer occurs over an insulation material with a cross-sectional area of 10 m2 and a thickness of 2.5 cm. Since the temperature of the inner surface is 415 ºC and the thermal conductivity of the material is 0.2 W/ m.K, calculate the temperature of the outer surface

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.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.9P: Heat is transferred at a rate of 0.1 kW through glass wool insulation (density=100kg/m3) with a 5-cm...

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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

3 kW of heat transfer occurs over an insulation material with a cross-sectional area of 10
m2
and a thickness of 2.5 cm. Since the temperature of the inner surface is 415 ºC and the
thermal conductivity of the material is 0.2 W/ m.K, calculate the temperature of the outer
surface

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