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! Required information 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 Ta = 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 425 K. The total absorptivity of the plate is 0.7. J G Air, 300 K h = 40 W/m2K T Determine the irradiation on the plate. (You must provide an answer before moving to the next part.) The irradiation on the plate is W/m2
Determine the total reflectivity of the plate. (You must provide an answer before moving to the next part.) The total reflectivity of the plate is
Determine the emissive power of the plate. (You must provide an answer before moving to the next part.) The emissive power of the opaque plate is W/m2
Find the total emissivity of the plate. The emissivity of the surface is