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BUBBLE GROWTH IN NUCLEATE POOL BOILING

M. G. Cooper
Department Engineering, University Cambridge, England

R.M. Vijuk
Westinghouse Astronuclear Laboratory Pittsburgh, Pennsylvania, U.S.A.

Abstract

Simple expressions are derived for the rate of growth of isolated hemispherical bubbles in nucleate pool boiling, due to combined effects of conduction of heat to or from the bulk fluid and conduction of heat from the heater wall through a thin liquid layer (the microlayer) beneath the bubble. The expressions are not restricted to asymptotic cases; they take account of the initial temperature distribution in the bulk fluid and all possible combinations of properties of wall and fluid. They agree well with corresponding published experimental data.

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