Two parallel plates measuring 1 m 1 m are spaced 2 m apart. The inner surface of each plate radiates as a black body and the outer surfaces are perfectly insulated. A radiation shield with an...

Two parallel plates measuring 1 m

1 m are spaced 2 m apart. The inner surface of each plate radiates as a black body and the outer surfaces are perfectly insulated. A radiation shield with an emissivity of 0.05 on each side and measuring 1 m

1 m is situated equidistant between the plates. The temperature of one plate is maintained at 727°C, the other plate at 227°C and the surroundings are at 27°C. Sketch the radiation network and calculate the radiative heat transfer from the hot plate. The configuration factor for two square parallel planes at distance apart equal to one of the sides is 0.2.