Liquid hydrogen is flowing through an insulated pipe (k = 23 W/m K, D i =
Question:
Liquid hydrogen is flowing through an insulated pipe (k = 23 W/m ∙ K, Di = 3 cm, Do = 4 cm, and L = 20 m). The pipe is situated in a chemical plant, where the average air temperature is 40°C. The convection heat transfer coefficients of the liquid hydrogen and the ambient air are 200 W/m2 ∙ K and 50 W/m2 ∙ K, respectively. If the outer surface temperature of the insulated pipe is 5°C, determine the thickness of the pipe insulation (k = 0.6 W/m ∙ K) in order to keep the liquid hydrogen flowing at an average temperature of 2300°C.
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To determine the thickness of the pipe insulation required to keep the liquid hydrogen flowing at an average temperature of 2300C we can use the heat ...View the full answer
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Related Book For 
Heat And Mass Transfer Fundamentals And Applications
ISBN: 9780073398181
5th Edition
Authors: Yunus Cengel, Afshin Ghajar
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