Explanation The rate of heat transfer by conduction in solid substances is given by Fourier’s Law of heat conduction. According to Fourier’s law of heat conduction, the rate of heat flow through a homogeneous substance is directly proportional to the area of the section perpendicular to the flow of heat and the ratio of change in temperature to length of the path of heat flow. Mathematically it can be written as, Rate of heat transfer by conduction ( Q ) = − kA dt dx Where, ( k ) = Thermal conductivity of material ( A ) = Surface area of heat flow ( dt ) = Temperature difference along the length of heat flow . ( dx ) = Thickness of the body in the direction of flow of heat

6th Edition

ISBN: 9781260439991

Author: CENGEL

Publisher: MCG

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Chapter 1, Problem 139P

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The expression used to determine the heat flux for conduction.

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Chapter 1, Problem 138P

Chapter 1, Problem 140P

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Example Consider the simplified model of an automobile shown in Figure, let the parameter have the values m = 1500 kg, Ic = 2000 kg m2, k₁ = 36000 kg/m, k₁ = 40000 kg/m, a = 1.3 m and b = 1.7 m, calculate the natural modes of the system and write the expression for the response. ט 0 Solution T Equilibrium position 6(1)

Chapter 1 Solutions

HEAT+MASS TRANSFER:FUND...-CONNECTPLUS

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