Question

A metal plate 0.609 m in height forms the vertical wall of an oven and is at a temperature
of 171 °C. Within the oven is air at a temperature of 93.4 °C and atmospheric pressure.
Assuming that natural convection conditions hold near the plate, and that for this case
Nu = 0.548 (Gr Pr) 1/4
find the mean heat transfer coefficient and the heat taken up by air per second per metre width.
For air at 132.2°C, take k = 33.2 x 10-6kW/mK, m = 0.232 x 10-4 kg/ms, Cp = 1.005 kJ/kg
K. Assume air as an ideal gas and R = 0.287 kJ/kg K.

Answer 1

Answer:

117467degree from hight