determine the view factor, and the net heat transfer by radiation between two gray surfaces, A (εA= 0.88) and B (εB= 0.65) at temperatures 450°C and 50°C, respectively if a. surfaces are infinite black parallel planes b. s

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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determine the view factor, and the net heat transfer by radiation between two gray surfaces, A (εA= 0.88) and B (εB= 0.65) at temperatures 450°C and 50°C, respectively if
a. surfaces are infinite black parallel planes
b. surfaces are infinite non-black parallel planes
c. surface A is a spherical shell 4.5 m in diameter and surface B is a similar shell concentric with A and 0.75 m in diameter

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