Determine the total emissivity for each of these surfaces

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Reference no: EM131283352

Three different surfaces are heated to a temperature T_s = 800?C. The total radiation heat flux leaving these surfaces (i.e., the radiosity) is measured with a calorimeter and the values

Assume that the reflected radiation is negligible compared to surface emission and that the surfaces are opaque, diffuse, and gray

(a) Determine the total emissivity for each of these surfaces.

(b) Comment on the importance of considering the surface reflection in the measurement of surface emissivity ∈r.

Reference no: EM131283352

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