Liquid nitrogen at 77 K is stored in an insulated spherical container that is vented to the
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Liquid nitrogen at 77 K is stored in an insulated spherical container that is vented to the atmosphere. The container is made of a thin-walled material with an outside diameter of 0.5 m; 25 mm of insulation (k = 0.002 W/m · K) covers its outside surface. The latent heat of nitrogen is 200 kJ/kg; its density, in the liquid phase, is 804 kg/m3. For surroundings at 25°C and with a convective coefficient of 18 W/m2 · K at the outside surface of the insulation, what will be the rate of liquid nitrogen boil-off?
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Related Book For
Fundamentals Of Momentum Heat And Mass Transfer
ISBN: 9781118947463
6th Edition
Authors: James Welty, Gregory L. Rorrer, David G. Foster
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