A steel tube with 5 cm internal diameter, 7.6 cm outer diameter and k=15W/m °C is covered with an isolative covering of thickness 2 cm and k= 0.2 W/m °C. A hot gas at 330 °C with h = 400 W/m² °C flows inside the tube. The outer surface of the insulation is exposed to cooler air at 30 °C with h = 60 W/m².°C. Calculate the heat loss from the tube to the air for 10 m of the tube and the temperature drop in the insulation layer.

A steel tube with 5 cm internal diameter, 7.6 cm outer diameter and k=15W/m °C is covered with an isolative covering of thickness 2 cm and k= 0.2 W/m °C. A hot gas at 330 °C with h = 400 W/m² °C flows inside the tube. The outer surface of the insulation is exposed to cooler air at 30 °C with h = 60 W/m².°C. Calculate the heat loss from the tube to the air for 10 m of the tube and the temperature drop in the insulation layer.

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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