Find the heat flow rate through the composite wall as shown in figure. Assume one dimensional flow and takek 1 = 150 W/m degreek 2 = 30 W/m degreek 3 = 65 W/m degreek 4 = 50 W/m degreeAB = 3 cm, BC = 8 cm and CD = 5 cm. The distance between middle horizontal line from the top is 3 cm and from the bottom is 7 cm

Find the heat flow rate through the composite wall as shown in figure

1.	Find the heat flow rate through the composite wall as shown in figure. Assume one dimensional flow and takek 1 = 150 W/m degreek 2 = 30 W/m degreek 3 = 65 W/m degreek 4 = 50 W/m degreeAB = 3 cm, BC = 8 cm and CD = 5 cm. The distance between middle horizontal line from the top is 3 cm and from the bottom is 7 cm
A.	1173.88 W
B.	1273.88 W
C.	1373.88 W
D.	1473.88 W
Answer» C. 1373.88 W

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