Consider steady-state conditions for one-dimensional conduction in a plane wall having a thermal conductivity k = 40 W/m-K and a chickness L = 0.3 m, with no internal heat generation. T2 L Determine the heat flux, in kW/m2, and the unknown quantity for each case.

Consider steady-state conditions for one-dimensional conduction in a plane wall having a thermal conductivity k = 40 W/m-K and a chickness L = 0.3 m, with no internal heat generation. T2 L Determine the heat flux, in kW/m2, and the unknown quantity for each case.

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.

Chapter4: Numerical Analysis Of Heat Conduction

Section: Chapter Questions

Problem 4.5P

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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

Consider steady-state conditions for one-dimensional conduction in a plane wall having a thermal conductivity k = 40 W/m-K and a
thickness L = 0.3 m, with no internal heat generation.
-T2
L
Determine the heat flux, in kW/m², and the unknown quantity for each case.
Case
T1(°C)
T2(°C)
dT/dx(K/m)
q (kW/m?)
1
50
-20
i
i
2
-30
-10
i
i
3
70
i
160
i
4
i
40
-80
i
5
i
30
200
i

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