Q: Consider the section of wall as shown in the figure, assuming one dimensional heat flow, determine the following: I- Rate of heat transfer per unit area (Im through the composite wall. II- Determine also the temperature (Tp) as shown in the figure. T01 = 30 °C To2 = 2 °C hi = 20 W/m?.°C C 8 cm h2 = 12 w/m?.C 20 cm A kA = 0.6 W/m.C D TD 30 cm kB = 0.8 W/m ."C To1 To2 kC = 0.9 W/m ."C hị BE 10 cm h2 kD = 0.7 W/m.C kE = 0.5 W/m .C kF = 0.04 W/m."C 8 cm 6cm 12cm %3D
Q: Consider the section of wall as shown in the figure, assuming one dimensional heat flow, determine the following: I- Rate of heat transfer per unit area (Im through the composite wall. II- Determine also the temperature (Tp) as shown in the figure. T01 = 30 °C To2 = 2 °C hi = 20 W/m?.°C C 8 cm h2 = 12 w/m?.C 20 cm A kA = 0.6 W/m.C D TD 30 cm kB = 0.8 W/m ."C To1 To2 kC = 0.9 W/m ."C hị BE 10 cm h2 kD = 0.7 W/m.C kE = 0.5 W/m .C kF = 0.04 W/m."C 8 cm 6cm 12cm %3D
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Transcribed Image Text:Q: Consider the section of wall as shown in the figure, assuming one dimensional
heat flow, determine the following:
I- Rate of heat transfer per unit area (Im through the composite wall.
II- Determine also the temperature (Tp) as shown in the figure.
To1 = 30 °C
T02 2 °C
hi = 20 W/m2.C
8 cm
h2 = 12 w/m?.C
20 cm
A
%3D
F
kA = 0.6 W/m .C
D TD
30 cm
kB = 0.8 W/m ."C
To1
To2
kC = 0.9 W/m ."C
kD = 0.7 W/m ."C
hi
BE 10 cm
h2
kE = 0.5 W/m."C
kF = 0.04 W/m."C
8 cm - 6cm
12cm
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