A horizontal opaque flat plate is well insulated on the edges and the lower surface. The top surface has an area of 5 m², and it experiences uniform irradiation at a rate of 5000 W. The plate absorbs 4000 W of the irradiation, and the surface is losing heat at a rate of 500 W by convection. If the plate maintains a uniform temperature of 350 K, determine the absorptivity, reflectivity, and emissivity of the plate.

Transcribed Image Text:

Чconv = 350 K Gabs %3D