Then, by a comprehensive consideration of the influence of steam state equation, surface tension and water density calculation method on the calculation of liquid droplet critical radius a specific mode for calculatiing liquid droplet critical radius under a supersaturation state was developed.

Finally, through an analysis of the above mentioned calculation formula it is considered appropriate to adopt a simplified form of the critical radius calculation formula during the calculation of liquid droplet critical radius under a low supersaturation state.

Based on the earlier work performed by other researchers the authors have derived a formula for the accurate calculation of the critical radius of a spherical liquid droplet under a supersaturation state. In addition, on the basis of available experimental data a formula for the exact prediction of liquid droplet surface tension was obtained by using a fitting process.

Effects associated with the rapid variation of the critical droplet size are investigated.

For a planar wall the critical droplet has cylindrical symmetry and therefore should be described by two different critical lengths.

We discuss these quantities and also the excess free energy of the critical droplet as functions of the spreading coefficient near coexistence of the wet and the nonwet state of the wall.

This subcritical droplet then evolves in a time of order 1 to a critical droplet, which finally grows with features described in [NS].

We show that the relaxation time, i.e., the time it takes for the system to reach the (+)-phase starting from all spins -1, scales as as the temperature , where and is the energy of a "critical" droplet.

Using the formulae for calculating thermodynamic properties of superheated steam, as proposed by IFC (1976), the author has (?)ucceeded in developing a computor program for calculating the thermodynamic properties of supersaturated steam within the region between the saturation line and the 95% line of dryness fraction, and has turned the results into a table and a chart accordingly. This paper proposes an accurate equation for the steam pressure in equilibrium with spherical drops. By using such an equation,...

Using the formulae for calculating thermodynamic properties of superheated steam, as proposed by IFC (1976), the author has (?)ucceeded in developing a computor program for calculating the thermodynamic properties of supersaturated steam within the region between the saturation line and the 95% line of dryness fraction, and has turned the results into a table and a chart accordingly. This paper proposes an accurate equation for the steam pressure in equilibrium with spherical drops. By using such an equation, a simple and accurate method is suggested for computing the critical droplet radius or degree of supersaturation using the supersaturated steam table. To provide a concrete comparision of the relative merits of the suggested method and other methods, it may be cited that over a region up to 250℃, 60 bars and 0.95 dryness fraction, the error of calculation by the new method is less than 1%, as compared with 10% to 26% obtained by the other methods.

Based on the earlier work performed by other researchers the authors have derived a formula for the accurate calculation of the critical radius of a spherical liquid droplet under a supersaturation state. In addition, on the basis of available experimental data a formula for the exact prediction of liquid droplet surface tension was obtained by using a fitting process. Then, by a comprehensive consideration of the influence of steam state equation, surface tension and water density calculation method on the...

Based on the earlier work performed by other researchers the authors have derived a formula for the accurate calculation of the critical radius of a spherical liquid droplet under a supersaturation state. In addition, on the basis of available experimental data a formula for the exact prediction of liquid droplet surface tension was obtained by using a fitting process. Then, by a comprehensive consideration of the influence of steam state equation, surface tension and water density calculation method on the calculation of liquid droplet critical radius a specific mode for calculatiing liquid droplet critical radius under a supersaturation state was developed. Finally, through an analysis of the above mentioned calculation formula it is considered appropriate to adopt a simplified form of the critical radius calculation formula during the calculation of liquid droplet critical radius under a low supersaturation state.