7- Consider a composite structure shown on below. Conductivities of the layer are: kl = k3 = 10 W/mK, k2 = 16 W/mK, and k4 = 46 W/mK. The convection coefficient on the right side of the composite is 30 W/m2K. Calculate the total heat flow through the composite. Answ(173.9W) %3D

7- Consider a composite structure shown on below. Conductivities of the layer are: kl = k3 = 10 W/mK, k2 = 16 W/mK, and k4 = 46 W/mK. The convection coefficient on the right side of the composite is 30 W/m2K. Calculate the total heat flow through the composite. Answ(173.9W) %3D

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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L4
LI
L2 L3
7- Consider a composite structure shown on
below. Conductivities of the layer are: kl = k3
= 10 W/mK, k2 = 16 W/mK, and k4 = 46
W/mK. The convection coefficient on the right
side of the composite is 30 W/m2K. Calculate
the total heat flow through the composite.
Answ(173.9W)
T=100°C
T=20°C
2
Aj= A; =A;=0.1m?
4
A=0.03m?
L=20cm, L2=L=15cm

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