Q Two Concentric Spheres 0 2m And 0 3m In Diameter With The Space Between Them Evacuated Are To Be Used For Storing 1 (39.81 KiB) Viewed 11 times
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Q. Two concentric spheres, 0.2m and 0.3m in diameter, with the space between them evacuated, are to be used for storing liquid air at a temperature of 145°C in a room which is maintained at a temperature of 25°C. If the surfaces of the spheres are of emissivities 0.02 and 0.03, respectively. Calculate the mass rate of evaporation of liquid air, if the latent heat of vaporization of air is 220 kJ/kg.
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