Liquid oxygen is stored in a thin-walled spherical container at -183 °C. The vessel has a diameter of 0.45 m and is insulated by a layer of evacuated silica powder. If the insulation thickness is 10 mm, the temperature of the outer wall is 25 °C and the thermal conductivity of the insulation is 0.0068 W/m.K, determine the rate of heat transfer to the inside of the container.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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: Liquid oxygen is stored in a thin-walled spherical container at -183 °C. The vessel
has a diameter of 0.45 m and is insulated by a layer of evacuated silica powder. If the
insulation thickness is 10 mm, the temperature of the outer wall is 25 °C and the thermal
conductivity of the insulation is 0.0068 W/m.K, determine the rate of heat transfer to the
inside of the container.
60
Transcribed Image Text:: Liquid oxygen is stored in a thin-walled spherical container at -183 °C. The vessel has a diameter of 0.45 m and is insulated by a layer of evacuated silica powder. If the insulation thickness is 10 mm, the temperature of the outer wall is 25 °C and the thermal conductivity of the insulation is 0.0068 W/m.K, determine the rate of heat transfer to the inside of the container. 60
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