13.58 The end of a cylindrical liquid cryogenic propellant tank in free space is to be protected from external (solar) radi- ation by placing a thin metallic shield in front of the tank. Assume the view factor F, between the tank and the shield is unity; all surfaces are diffuse and gray, and the surroundings are at 0 K. T Shield, T, T, = 100 K E1 = E2 = 0.05 &= 0.10 Ĝ; = 1250 W/m? %3D Tank Solar irradiation Gs
13.58 The end of a cylindrical liquid cryogenic propellant tank in free space is to be protected from external (solar) radi- ation by placing a thin metallic shield in front of the tank. Assume the view factor F, between the tank and the shield is unity; all surfaces are diffuse and gray, and the surroundings are at 0 K. T Shield, T, T, = 100 K E1 = E2 = 0.05 &= 0.10 Ĝ; = 1250 W/m? %3D Tank Solar irradiation Gs
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Transcribed Image Text:13.58 The end of a cylindrical liquid cryogenic propellant tank
in free space is to be protected from external (solar) radi-
ation by placing a thin metallic shield in front of the
tank. Assume the view factor F, between the tank and
the shield is unity; all surfaces are diffuse and gray, and
the surroundings are at 0 K.
T Shield, T,
T, = 100 K
E1 = E2 = 0.05
&= 0.10
Ĝ3 = 1250 W/m?
Tank
Solar
irradiation
Gs
Find the temperature of the shield T, and the heat flux
(W/m) to the end of the tank.
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What would be the heat flux at the end of the tank without the metallic shield?
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