A particular furnace is shaped like a section of a cone. The top surface of the furnace is uniformly heated by a resistance heater. During operation, the top surface is measured to be 800 K and the power supplied to the resistance heater is 1750 W/m². The sidewall of the furnace is perfectly insulated with ε = 0.2. If the emissivity of the top and bottom surfaces are ε = 0.5 and ε = 0.7, respectively, determine the temperatures of the sidewall and the bottom surface of the furnace. =

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A particular furnace is shaped like a section of a cone. The top surface of the furnace is
uniformly heated by a resistance heater. During operation, the top surface is measured to
be 800 K and the power supplied to the resistance heater is 1750 W/m². The sidewall of
the furnace is perfectly insulated with & = 0.2. If the emissivity of the top and bottom
surfaces are ε = 0.5 and ε = 0.7, respectively, determine the temperatures of the sidewall
and the bottom surface of the furnace.
A₁
A2
A3
→→D₂ = 20 mm
D₁ = 40 mm
L = 50 mm
Transcribed Image Text:A particular furnace is shaped like a section of a cone. The top surface of the furnace is uniformly heated by a resistance heater. During operation, the top surface is measured to be 800 K and the power supplied to the resistance heater is 1750 W/m². The sidewall of the furnace is perfectly insulated with & = 0.2. If the emissivity of the top and bottom surfaces are ε = 0.5 and ε = 0.7, respectively, determine the temperatures of the sidewall and the bottom surface of the furnace. A₁ A2 A3 →→D₂ = 20 mm D₁ = 40 mm L = 50 mm
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