Heat is generated in a homogeneous spherical piece of radioactive material (D 8 cm) at rate of 60.8 MW/mand is dissipated to the environment. The center and surface temperatures of the spheres are (425°C and 80°C) respectively, What is the thermal conductivity of the radioactive material "W/m.K"?

Heat is generated in a homogeneous spherical piece of radioactive material (D 8 cm) at rate of 60.8 MW/mand is dissipated to the environment. The center and surface temperatures of the spheres are (425°C and 80°C) respectively, What is the thermal conductivity of the radioactive material "W/m.K"?

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 1.4P: 1.4 To measure thermal conductivity, two similar 1-cm-thick specimens are placed in the apparatus...

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Question

100%

Heat is generated in a homogeneous
spherical piece of radioactive material (D
= 8 cm) at rate of 60.8 MW/m and is
dissipated to the environment. The center
and surface temperatures of the spheres
are (425°C and 80°C) respectively, What is
the thermal conductivity of the
radioactive material "W/m.K"?
Select one:
O A 48.96
B. 44.86

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