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Towards a multiscale model-based design of spray drying processes

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Towards a multiscale model-based design of spray drying processes (Volume 23) (English shop)

Moritz Buchholz (Author)


Extract, PDF (230 KB)
Table of Contents, PDF (34 KB)

ISBN-13 (Hard Copy) 9783736977747
ISBN-13 (eBook) 9783736967748
Language English
Page Number 202
Lamination of Cover matt
Edition 1.
Book Series SPE-Schriftenreihe
Volume 23
Publication Place Göttingen
Place of Dissertation Hamburg
Publication Date 2023-04-28
General Categorization Dissertation
Departments Mechanical and process engineering
Keywords Spray drying, CFD simulation, Single droplet experiments, Single droplet simulation, CFD-DEM simulation, zeolites, Population balances, Reduced order modeling, Multiscale modeling, Spray dryer experiments, Modelbased design, Sprühtrocknung, CFD-Simulation, Einzeltropfenexperimente, Einzeltropfensimulation, CFD-DEM-Simulation, Zeolithe, Populationsbilanzen, Modellreduktion, Mehrskalen-Modellierung, Sprühtrockner Experimente, Rechnergestütztes Design, akustische Levitation, acoustic levitation, Tröpfchensimulation, droplet simulation

This work focuses on the experimental and numerical investigation of different aspects of the spray drying process on multiple scales with the aim to develop a model-based workflow to support the design of spray dryers. On the droplet scale, acoustic levitation is used for single droplet drying experiments with the aim of gaining insights into the drying kinetics and the particle formation processes. The findings are compared to spray drying experiments on pilot scale. A novel approach of a coupled CFD-DEM simulation for single suspension droplets allows for a detailed description of the solidification mechanisms. The boundary conditions of the droplet simulation are extracted from CFD simulations of the spray dryer. Finally, a reduced order model for the spray drying process based on a multi-compartment approach is presented which uses the information from the detailed CFD simulations to accurately describe the drying processes. This model is applicable in the context of flowsheet simulations to simulate complete process chains involving spray dryers.