A special diffuse glass with prescribed spectral
Chapter 12, Problem 12.73(choose chapter or problem)
A special diffuse glass with prescribed spectral radia-tive properties is heated in a large oven. The walls ofthe oven are lined with a diffuse, gray refractory brickhaving an emissivity of 0.75 and are maintained atTw?1800 K. Consider conditions for which the glasstemperature is Tg?750 K.(a) What are the total transmissivity ?, the total reflec-tivity ?, and the total emissivity ?of the glass?(b) What is the net radiative heat flux, ,to the glass?(c) For oven wall temperatures of 1500, 1800, and2000 K, plot as a function of glass tempera-ture for 500Tg800 K.
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