Chapter 1
Basics of Heat Transfer
189
A 4m diameter spherical tank filled with liquid oxygen at 1 atm and 183
°
C is exposed to
convection with ambient air. The rate of evaporation of liquid oxygen in the tank as a result of the heat
transfer from the ambient air is to be determined.
Assumptions
1
Steady operating conditions exist.
2
Heat transfer by radiation is disregarded.
3
The
convection heat transfer coefficient is constant and uniform over the surface.
4
The temperature of the thin
shelled spherical tank is nearly equal to the temperature of the oxygen inside.
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 Fall '10
 Dr.DanielArenas
 Thermodynamics, Convection, Mass, Heat, Heat Transfer, Trigraph

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