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In casting furnace, the combustion gases are separated from the surrounding air by a wall with...

In casting furnace, the combustion gases are separated from the
surrounding air by a wall with a thickness of 12 cm, 1.2 W/m.K, and 0.85
as emissivity. Calculate the inner surface of the wall since the outer
surface temperature of the inner wall, where the air has 273 K and 25
2
W/? . ? as a coefficient of convective heat transfer.
Problem #2 (5 points)

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