A container, spherical in shape, with an outside diameter of 30 cm holds a hot fluid at 180°C. The container is insulated with two layers of each 10 cm thick of insulation of k = 0.05 and k2 = 0.20 W/mK (starting from inside). If the interface temperature between the first and second layer of insulation is 50°C, what is the rate of heat transfer through the container in Watts? Also, determine the outside surface temperature of the second layer of insulation.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A container, spherical in shape, with an outside diameter of 30 cm holds a hot fluid at 180°C. The container is
insulated with two layers of each 10 cm thick of insulation of k = 0.05 and k2 = 0.20 W/mK (starting from inside).
If the interface temperature between the first and second layer of insulation is 50°C, what is the rate of heat
transfer through the container in Watts? Also, determine the outside surface temperature of the second layer of
insulation.
Transcribed Image Text:A container, spherical in shape, with an outside diameter of 30 cm holds a hot fluid at 180°C. The container is insulated with two layers of each 10 cm thick of insulation of k = 0.05 and k2 = 0.20 W/mK (starting from inside). If the interface temperature between the first and second layer of insulation is 50°C, what is the rate of heat transfer through the container in Watts? Also, determine the outside surface temperature of the second layer of insulation.
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