Analysis of fluidization and shear conditions in rotor fluidized beds in dry and wet condition
Contact: Philipp Grohn
For various products, e.g. in the pharmaceutical, chemical and food industries, the formulation of solid particles with different substances is an important production step. At the Institute of Particle Process Engineering numerical simulation tools are used to develop new apparatus, to gain further information about particle motion and to optimize special particle processes, e.g. spheronization of cylindrical particles or coating of particles.
The current project in this area is called "Analysis of fluidization and shear conditions in rotor fluid beds under dry and wet conditions". The influence of fluid and particle shape on particle dynamics in a dense, sheared gas-solid flow is investigated. Granulation and coating are modeled with a CFD-DEM approach. Using the example of a rotor fluidized bed, detailed experimental investigations of the particle dynamics are carried out using a novel MPT measuring technique under dry and wet conditions (spraying liquids).
Spouted bed apparatus
In house developed apparatus for coating of very finde (Geldart C) particles
Optical analysis of the particle size, form and roughness
Meaurements of the particle defor-mation behaviour depending on the temperature, particle roughness
Meaurements of the particle deformation behaviour depending on the temperature and air humidity and meaurements of particle friction coefficients
High speed cameras
Measurement of dynamic impact of par-ticle / droplet