A turbine blade, 6.25 cm long, cross-sectional area 4.5 cm 2 , perimeter 12 cm, is made of stainless steel (k = 26.16 W/m K). The temperature of the root is 500°C. The blade is exposed to a hot gas at...

A turbine blade, 6.25 cm long, cross-sectional area 4.5 cm², perimeter 12 cm, is made of stainless steel (k = 26.16 W/m K). The temperature of the root is 500°C. The blade is exposed to a hot gas at 800°C, and the average heat transfer coefficient is 0.465 kW/m²
K. Determine the temperature and the rate of heat flow at the root of the blade. Assume that the tip is insulated.