M Eftekhardadkhah - Computational Fluid Dynamics Research Laboratory, School of Chemical Engineering, Iran University of Science and Technology,
S . H Hashemabadi - Computational Fluid Dynamics Research Laboratory, School of Chemical Engineering, Iran University of Science and Technology,

The droplet size distribution has significant effect on properties of the emulsions in different aspects. In this paper, the droplet size distribution of the emulsions is determined by analyzing the photomicrographs of model emulsions which were taken by microscope. The normal distribution function is fitted to the experimental data in order to reproduce the droplet size distribution of the emulsions by using mean diameter and standard deviation. The effect of different parameters such as surfactant concentration, salinity, and power of homogenizer on the droplet size distribution and mean droplet diameter of the emulsions are determined. The smaller droplet size was observed in high concentration of surfactant and in the absence of salt and also in emulsions which were prepared with higher power of homogenizer.

Oil-in-water emulsions; Droplet size distribution; Surface tension