Question

Determine the net radiant heat exchange per m2 area for two infinite parallel plates held at temperature of 800k and 500k respectively. Take emissivity as 0.6 for the hot plate and 0.4 for the cold plate. What should be the emissivity of a polished aluminium shield placed between them if heat flow is to be reduced to 40 % of its original value? Calculate the equilibrium temperature of the shield

Answer 1

Thin sheets of aluminum ... Two large parallel planes with emissivity 0.4 are maintained at ... Determine the net radiant heat exchange per m 2 area for two infinite