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A circular ice rink 60 m in diameter is enclosed by a hemispherical dome 100 m in diameter. The 0°C ice has emissivity of arink = 0.9, and the 20°C dome has emissivity of Edome = 0.3. The side ring seating area is a blackbody at 20°C. All surfaces are opaque, diffuse, and gray. Determine: A) The radiosity for the ice rink (Jrink), and the dome (Jdome). B) Net radiation heat transfer (grink-dome in W) between the ice rink and dome. Ddome 100 m Tdome = 20°C Drink - 60 m Trink=0°C Tseating = 20°C

A circular ice rink 60 m in diameter is enclosed by a hemispherical dome 100 m in diameter. The 0°C ice has emissivity of arink = 0.9, and the 20°C dome has emissivity of Edome = 0.3. The side ring seating area is a blackbody at 20°C. All surfaces are opaque, diffuse, and gray. Determine: A) The radiosity for the ice rink (Jrink), and the dome (Jdome). B) Net radiation heat transfer (grink-dome in W) between the ice rink and dome. Ddome 100 m Tdome = 20°C Drink - 60 m Trink=0°C Tseating = 20°C

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
Problem 1.1MA
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A circular ice rink 60 m in diameter is enclosed by a hemispherical dome 100 m in diameter. The 0°C ice has emissivity of arink = 0.9, and the 20°C dome has emissivity of Edome = 0.3. The side ring seating area is a blackbody at 20°C. All surfaces are opaque, diffuse, and gray. Determine: A) The radiosity for the ice rink (Jrink), and the dome (Jdome). B) Net radiation heat transfer (grink-dome in W) between the ice rink and dome. Ddome 100 m Tdome = 20°C Drink - 60 m Trink=0°C Tseating = 20°C
Transcribed Image Text:A circular ice rink 60 m in diameter is enclosed by a hemispherical dome 100 m in diameter. The 0°C ice has emissivity of arink = 0.9, and the 20°C dome has emissivity of Edome = 0.3. The side ring seating area is a blackbody at 20°C. All surfaces are opaque, diffuse, and gray. Determine: A) The radiosity for the ice rink (Jrink), and the dome (Jdome). B) Net radiation heat transfer (grink-dome in W) between the ice rink and dome. Ddome 100 m Tdome = 20°C Drink - 60 m Trink=0°C Tseating = 20°C
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