A long, heated, cylindrical steel rod is removed from a heat treatment furnace and has to be
Question:
A long, heated, cylindrical steel rod is removed from a heat treatment furnace and has to be cooled to complete the process. If the surface temperature of the rod is at 150°C and the cooling fluid temperature is maintained at 25°C, what is the minimum diameter of the rod to produce turbulent natural convection heat transfer if it is held in a horizontal position in
(a) Air
(b) Water
Also, determine the initial heat transfer rate by natural convection from a 10-cm diameter rod in each of the two fluids.
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GIVEN Long heated cylindrical steel rod cooled by natural convection Surface temperature of rod T s ...View the full answer
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Related Book For 
Principles Of Heat Transfer
ISBN: 9781305387102
8th Edition
Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn
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