Repeat Prob. 8.74 for a highly polished aluminum surface.
Prob. 8.74
A plate of aluminum which has become heavily oxidized over a period of time is placed in a large enclosure and exposed to a convection environment with h = 40 W/m2 · ?C and T∞ = 30?C ± 0.5?C. The plate temperature is measured as 86?C ± 0.7?C. Calculate the effective temperature of the large enclosure and estimate its uncertainty.