A small copper sphere, initially at a uniform, elevated temperature T(0) = T;, is suddenly immersed...

Question

A small copper sphere, initially at a uniform, elevated temperature T(0) = T;, is suddenly immersed in a large
fluid bath maintained at Tsat. The initial temperature of the sphere exceeds the Leiden frost point
co
esponding to the temperature TD of Figure 10.4.
(a) Sketch the variation of the average sphere temperature, T(t), with time during the quenching process.
Indicate on this sketch the temperatures Ti, TD, and Tsat as well as the regimes of film, transition, and
nucleate boiling and the regime of single-phase convection....

Robert · Accepted Answer

A small copper sphere, initially at a uniform, elevated temperature T(0) = T;, is suddenly immersed in a large 
fluid bath maintained at Tsat. The initial temperature of the sphere exceeds the Leiden frost point 
corresponding to the temperature TD of Figure 10.4.
(a) Sketch the variation of the average sphere temperature, T(t), with time during the quenching process. 
Indicate on this sketch the temperatures Ti, TD, and Tsat as well as the regimes of film, transition, and 
nucleate boiling and the regime of single-phase convection.

A small copper sphere, initially at a uniform, elevated temperature T(0) = T;, is suddenly immersed in a large fluid bath maintained at Tsat. The initial temperature of the sphere exceeds the Leiden...

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