Consider a horizontal 5-mm-thick, 80-mm-long straight fin fabricated from plain carbon steel (k = 57 W/m-K, = 0.5). The base of the fin is maintained at 100°C, while the quiescent ambient air and the surroundings are at 25°C. Assume the fin tip is adiabatic, and estimate the fin heat rate per unit width, q', in W/m. Use an average fin surface temperature of 80°C to estimate the free convection coefficient, and the linearized radiation coefficient, ,, in W/m²K. d's= h= h₂ i i i W/m W/m2.K W/m².K

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Corrosion control methods

Corrosion may be defined as the method in which metals are attacked on their exteriors by gases existing in the atmosphere, converting them to their oxides, nitrides, sulfides, etc.