A straight triangular fin of steel (k = 30 W/m.K) is attached to a plane wall maintained at 460°C. The fin thickness is 6.4 mm and it is 25 mm long. It is exposed into a fluid at 90°C with h = 28 W/ m...

A straight triangular fin of steel (k = 30 W/m.K) is attached to a plane wall maintained at 460°C. The fin thickness is 6.4 mm and it is 25 mm long. It is exposed into a fluid at 90°C with h = 28 W/ m².K. Calculate the heat loss from the fin.