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Homogenní nukleace vody v difúzní komoře s laminárním tokem
 Manka, A. ; Brus, David ; Hyvärinen, A.-P. ; Lihavainen, H. ; Wölk, J. ; Strey, R.
Homogeneous nucleation rates of water at temperature between 240 and 270 K were measured in a laminar flow diffusion chamber at ambient pressure and Helium as carrier gas. The experimental results extend the nucleation rate data from literature substantially. Using the macroscopic vapor pressure, density and surface tension of water we calculate the nucleation rates predicted by classic theory and by the empirical correction function of CNT by Völk and Strey. As in the case of other systems, CNT predicts a stronger temperature dependence than experimentally observed, whereas the agreement with empirical correction function is good. Furthermore, the isothermal nucleation rates curves allow us to determine the experimental critical cluster sizes by use of the nucleation theorem. A comparison with the critical cluster sizes calculated by use of the Gibbs-Thomson equation is remarkably good.
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