An insulated steam pipe located where the ambient temperature is 32°C, has an inside diameter of 50 mm with 10 mm thick wall. The outside diameter of the corrugated asbestos insulation is 125 mm and the surface coefficient of still air, h0 = 12 W/m2 -K. Inside the pipe is steam having a temperature of 150°C with film coefficient hi = 6000 W/m2 . Thermal conductivity of pipe and asbestos insulation are 45 and 0.12 W/m-K respectively. Determine the heat loss per unit length of pipe.
An insulated steam pipe located where the ambient temperature is 32°C, has an inside diameter of 50 mm with 10 mm thick wall. The outside diameter of the corrugated asbestos insulation is 125 mm and the surface coefficient of still air, h0 = 12 W/m2 -K. Inside the pipe is steam having a temperature of 150°C with film coefficient hi = 6000 W/m2 . Thermal conductivity of pipe and asbestos insulation are 45 and 0.12 W/m-K respectively. Determine the heat loss per unit length of pipe.
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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An insulated steam pipe located where the ambient temperature is 32°C, has an inside
diameter of 50 mm with 10 mm thick wall. The outside diameter of the corrugated asbestos
insulation is 125 mm and the surface coefficient of still air, h0 = 12 W/m2
-K. Inside the pipe is
steam having a temperature of 150°C with film coefficient hi = 6000 W/m2
. Thermal
conductivity of pipe and asbestos insulation are 45 and 0.12 W/m-K respectively. Determine
the heat loss per unit length of pipe.
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