A hot gas at 300°C with convective heat transfer coefficient of 100 W/m²-K is flowing through an uninsulated steel tube of 8 cm outside diameter, thickness of 1.3 cm and length of 50 meters. The thermal conductivity of the steel tube is 45 W/m-K and is exposed to ambient temperature of 30°C with convective heat transfer coefficient of 5 W/m²-K. It is proposed to install one layer of insulation to reduce the heat loss on the steel tube. As a future mechanical engineer, determine which material from table 1 is more effective to use as insulation:

A hot gas at 300°C with convective heat transfer coefficient of 100 W/m²-K is flowing through an uninsulated steel tube of 8 cm outside diameter, thickness of 1.3 cm and length of 50 meters. The thermal conductivity of the steel tube is 45 W/m-K and is exposed to ambient temperature of 30°C with convective heat transfer coefficient of 5 W/m²-K. It is proposed to install one layer of insulation to reduce the heat loss on the steel tube. As a future mechanical engineer, determine which material from table 1 is more effective to use as insulation:

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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