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A heat flux gage of 4-mm diameter is positioned normal to and 1 m from the 5-mm-diameter aperture of a blackbody furnace at 1000 K. The dif gray cover shield (e = 0.2) of the furnace has an outer diameter of 100 mm and its temperature is 350 K. The furnace and gage are located in a large re whose walls have an emissivity of o.8 and are at 300 K. - Furnace, T, = 1000 K - Cover, T, - 350 K, e= 0.2 D- 100 mm Gage. 4-mm diameter Aperture, 5-mm diameter 1m-

A heat flux gage of 4-mm diameter is positioned normal to and 1 m from the 5-mm-diameter aperture of a blackbody furnace at 1000 K. The dif gray cover shield (e = 0.2) of the furnace has an outer diameter of 100 mm and its temperature is 350 K. The furnace and gage are located in a large re whose walls have an emissivity of o.8 and are at 300 K. - Furnace, T, = 1000 K - Cover, T, - 350 K, e= 0.2 D- 100 mm Gage. 4-mm diameter Aperture, 5-mm diameter 1m-

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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A heat flux gage of 4-mm diameter is positioned normal to and 1 m from the 5-mm-diameter aperture of a blackbody furnace at 1000 K. The diffuse, gray cover shield (e = 0.2) of the furnace has an outer diameter of 100 mm and its temperature is 350 K. The furnace and gage are located in a large room whose walls have an emissivity of 0.8 and are at 300 K. - Furnace, T, = 1000 K - Cover, T, = 350 K, e = 0.2 Gage, 4-mm diameter D- 100 mm - Aperture, 5-mm diameter - 1 m (a) What is the irradiation on the gage, G, (W/m²), considering only emission from the aperture of the furnace? (b) What is the irradiation on the gage due to radiation from the cover and aperture?
Transcribed Image Text:A heat flux gage of 4-mm diameter is positioned normal to and 1 m from the 5-mm-diameter aperture of a blackbody furnace at 1000 K. The diffuse, gray cover shield (e = 0.2) of the furnace has an outer diameter of 100 mm and its temperature is 350 K. The furnace and gage are located in a large room whose walls have an emissivity of 0.8 and are at 300 K. - Furnace, T, = 1000 K - Cover, T, = 350 K, e = 0.2 Gage, 4-mm diameter D- 100 mm - Aperture, 5-mm diameter - 1 m (a) What is the irradiation on the gage, G, (W/m²), considering only emission from the aperture of the furnace? (b) What is the irradiation on the gage due to radiation from the cover and aperture?
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