EX3 Two coaxial cylinders of diameters D=0.10 m and D 0.30 m and emissivities 1 = 0.7 and 2=0.4 are maintained at umiform temperatures of T1= 750 K and T; - 500 K. respectively. Now a coaxial radiation shield of diameter D; 0.20 m and emissivity 3-0.2 is placed between the two cylinders. Determine the net rate of radiation heat transfer between the two cylinders per unit length of the cylinders and compare the result with that without the shield.

EX3 Two coaxial cylinders of diameters D=0.10 m and D 0.30 m and emissivities 1 = 0.7 and 2=0.4 are maintained at umiform temperatures of T1= 750 K and T; - 500 K. respectively. Now a coaxial radiation shield of diameter D; 0.20 m and emissivity 3-0.2 is placed between the two cylinders. Determine the net rate of radiation heat transfer between the two cylinders per unit length of the cylinders and compare the result with that without the shield.

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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