Consider an opaque horizontal plate that is well insulated on the edges and the lower surface. The plate is uniformly irradiated from above while air at T = 300 K flows over the surface providing a uniform convection heat transfer coefficient of 40 W/m2K. Under steady state conditions the surface has a radiosity of 4000 W/m2 and the plate temperature is maintained uniformly at 350 K. If the total absorptivity of the plate is 0.40 determine (a) the irradiation on the plate (b) the total reflectivity of the plate (c) the emissive power of the plate and (d) the total emissivity of the plate.
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