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2011
Journal Article
Titel
Tropfenschwarmanalytik mittels Bildverarbeitung zur Simulation von Extraktionskolonnen mit Populationsbilanzen
Alternative
Droplet swarm analysis by image processing for simulation of extraction columns with population balances
Abstract
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.