A container is used to store liquid oxygen. The wall of the container is made with...
A container is used to store liquid oxygen. The wall of the container is made with two layers (walls) and vacuum between the layers. Outside surface of inner wall and inside surface of outer wall are covered with silver with emissivity of 0.02. By measurement we know the outside surface of inner wall temperature is -183 oC and inside surface of outer wall temperature is 20 oC.
(A) Calculate the heat transfer rate per unit area.
(B) If we want to reduce the heat transfer rate and we can choose cheaper material with different emissivity, do you think the emissivity valve should be higher or lower?
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A container is used to store liquid oxygen. The wall of the
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