Temperature fluctuation in bubble nucleate pool boiling: A proposed new factor of evaporation

The phase change rate and related physical constants of superheated water at the liquid surface can be determined by the mechanism of hydrogen bonding and by the Maxwell-Boltzmann principle. In this paper, we introduce a physical constant and attempted to demonstrate the existence and the value of this physical constant. First, we measured temperature fluctuations under the bubbles in a pool of boiling water. Second, a sample analytical model was introduced, to determined the value of the physical constant. Comparisons were made between the experimental data and those of the calculations. © 2002 Wiley Periodicals, Inc.