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In: Mechanical Engineering

‏The ceiling of an ice skating rink should have a high reflectivity to avoid condensation on...



‏The ceiling of an ice skating rink should have a high reflectivity to avoid condensation on the ceiling . If condensation forms on the ceiling , water may drip ca ice . The rink has a diameter of 50m and a height of 12m . The temperature of the ice and walls are -5 ° C and 15 ° C respectively . The air in the rink is also at 15 ° C Neglect the convective losses to the outside air . If the ceiling is a diffese - gray surface and the ice and walls can be approximated as black bodies , perform an energy balance on the ceiling to calculate the ceiling temperature . If the relative humidity of the rink air is 70 % and the dew point is 9c , will condensation occur if a coating is added that provides an emissivity of 0.05 ?

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samet mamat answered 5 months ago
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