The temperatures on the left and right surfaces of a 15-cm thick wall are 375C and 85C . The wall is constructed of a material with the following properties: k=0.78, p=2700, Cp=0.84. What is the thermal diffusivity of the wall in m^2/s ?

The temperatures on the left and right surfaces of a 15-cm thick wall are 375C and 85C . The wall is constructed of a material with the following properties: k=0.78, p=2700, Cp=0.84. What is the thermal diffusivity of the wall in m^2/s ?

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 2.47P

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Question

The temperatures on the left and right surfaces of a 15-cm thick wall are 375°C and 85°C. The wall is constructed of a material with the following properties: k=0.78-
12
kg
p=2700- , c = 0.84
m ³ P
O 2.89 x 10-4
3.44 x 10-4
9.29 x 10-4
O None of the above
kJ
kg. K
What is the thermal diffusivity of the wall in
m
S
?
m.co'

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