Calculate the peak heat flux for nucleate pool boiling of water at 300 kPa pressure and 110°C on clean copper.

GIVEN

? Nucleate pool boiling of water on clean copper

? Pressure = 3 atm

? Water temperature (Tw) = 390°C

Find

? The peak heat flux (q"max)

ASSUMPTIONS

? Steady state

PROPERTIES AND CONSTANTS



From Table 9.2, the surface tension at 133°C (o) = 0.0522 N/m


The maximum heat flux for water at saturation temperature is given by Equation (9.4)



The maximum heat flux for a subcooled liquid is given by Equation (9.5)



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