Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion
Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 1 (Q.No. 12)
12.
The heat transfer by conduction through a thick sphere is given by
Discussion:
3 comments Page 1 of 1.
Uppalapu Srinivas Raju said:
1 decade ago
Consider the small spherical region with radius r2 inside the original sphere of radius r1. (r2<r1). Then from FOURIER's law of conduction, take the cross sectional area that is normal to radius (4*pi*r^2). Then by integration from r1 to r2 and T1 to T2. We will get the expression same where k is the thermal conductivity of the material.
(1)
Darshan Barot said:
10 years ago
Delta T/((1/2kl)* log(r1/r2)).
Where,
Delta T = Temperature difference.
K = Conductivity of material.
l = Length of material.
r1 & r2 = Inner and outer radii.
Is it right?
Where,
Delta T = Temperature difference.
K = Conductivity of material.
l = Length of material.
r1 & r2 = Inner and outer radii.
Is it right?
Akhil said:
7 years ago
This is for hollow sphere.
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