Oranges of 2.5-in-diameter (k = 0.26 Btu/hftF and = 1.4 3 10 -6 ft 2 /s)
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Oranges of 2.5-in-diameter (k = 0.26 Btu/h·ft·°F and α = 1.4 3 10-6 ft2/s) initially at a uniform temperature of 78°F are to be cooled by refrigerated air at 25°F flowing at a velocity of 1 ft/s. The average heat transfer coefficient between the oranges and the air is experimentally determined to be 4.6 Btu/h·ft2·°F. Determine how long it will take for the center temperature of the oranges to drop to 40°F. Also, determine if any part of the oranges will freeze during this process.
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The center temperature of oranges is to be lowered to 40F during cooling The cooling time and if any ...View the full answer
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Related Book For
Fundamentals of Thermal-Fluid Sciences
ISBN: 978-0078027680
5th edition
Authors: Yunus A. Cengel, Robert H. Turner, John M. Cimbala
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