Tropfenschwarmanalytik mittels Bildverarbeitung zur Simulation von Extraktionskolonnen mit Populationsbilanzen

Modern methods based on population balance methods permit a fast and accurate calculation of important quantities within extraction processes. The approaches show a good correlation between experiments and simulations with a deviation of the Sauter diameter d32 smaller as 5 % (stirred vessel 450 mm) and 7 - 12 % (column 450 mm). With the help of an optical measuring technique droplet swarms are examined transiently. The current limit of the transmitted light technique is at 16 - 20 vol.-% without further optimization. The limit of incident light technique is above 30 vol.-%. Distance transformation and watershed segmentation algorithms enable the analysis of the droplet images.