A cylindrical tube with inner and outer radius are 10 mm and 20 mm respectively and the temperature of the inner surface is 300 C while for the outer surface is 100 C . If the rate of heat transfer per unite length is 3625.88 W/m , the tube conductivity is :

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
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Chapter7: Forced Convection Inside Tubes And Ducts
Section: Chapter Questions
Problem 7.24P
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A cylindrical tube with inner and outer radius are 10 mm and 20 mm respectively and the temperature of the inner surface is 300 C while for the outer surface is 100 C . If the rate of heat transfer per unite length is 3625.88 W/m , the tube conductivity is :

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