Question: An opaque horizontal flat plate has a top surface area of 2 m 2 , and its edges and lower surface are well insulated. The

An opaque horizontal flat plate has a top surface area of 2 m2
, and its edges and lower surface
are well insulated. The plate is uniformly irradiated at its top surface at a rate of 1200 W.
Consider steady state conditions for which 1000 W of the incident radiation are absorbed.
The plate surface temperature is 350 K and heat transfer by convection from the surface is
400 W such that the net radiation is zero. Determine:

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