Lehrstuhl für Mechanische Verfahrenstechnik (MVT)

Bulk Solids Handling

The handling of granular material concerns dozens of billion tons of material worldwide. Approximately 50% of all goods once existed as granular form during their industrial production. The quality of the end product is strongly affected by the overall handling of the particles during the production processes.

The Institute of Particle Process Engineering started research in bulk solids handling in 1972, which is currently carried on by the EU Interreg project “PowderReg”. The project aims to optimize industrial processes with granular materials – from storage to the end product. This includes experimental and simulation-aided investigations of powder flow properties under high stresses (shear cells) and for free flowing regimes (powder rheometer) to predict flow profiles and mass flow rates during silo discharge.
The project “Analysis of the fluidization and shear conditions in rotor fluidized beds under dry and wet conditions" investigates the influence of liquids and particle shape on particle dynamics in a dense sheared gas-solid flow. 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).

Team

Research Areas

Research Projects

Recent Publications

Krull, F., Strohner, Hering, D.J., von Freymann, G., Antonyuk, S.: Measurements of micro particle rotation by applying marking points using additive manufacturing tools, Advanced Powder Technology 34 (2023) 104218 doi.org/10.1016/j.apt.2023.104218

Hesse, R., Lösch, P., Antonyuk, S.: CFD-DEM analysis of internal packing structure and pressure characteristics in compressible filter cakes using a novel elastic-plastic contact model, Advanced Powder Technology 34 (2023) 104062, doi.org/10.1016/j.apt.2023.104062

Grohn, P., Heinrich, S., Antonyuk S.: Numerical investigation of the particle dynamics in a rotorgranulator depending on the properties of the coating liquid, Pharmaceutics 15, 469 (2023) doi.org/10.3390/pharmaceutics15020469

Grohn, P., Schädler, L., Atxutegi, A., Heinrich, S., Antonyuk, S: CFD-DEM simulation of superquadric cylindrical particles in a spouted bed and a rotor granulator, Chem. Ing. Tech. 95 (2023), No. 1-2, 244–255, doi.org/10.1002/cite.202200121

Grohn, P., Oesau, T., Heinrich, S., Antonyuk, S.: Investigation of the influence of wetting on the particle dynamics in a fluidized bed rotor granulator by MPT measurements and CFD-DEM simulations, Powder Technology 408 (2022) 117736 doi.org/10.1016/j.powtec.2022.117736

Grohn, P., Oesau, T., Heinrich, S., Antonyuk, S.: Investigation of the influence of impact velocity and liquid bridge volume on the maximum liquid bridge length, Advanced Powder Technology 33 (2022) 6, 103630, doi.org/10.1016/j.apt.2022.103630

Evers, M., Weis, D., Antonyuk, S., Thommes, M.: Particle movement in the spheronizer – Experimental investigations with respect to the toroidal and poloidal direction, Powder Technology 404 (2022) 117452, doi.org/10.1016/j.powtec.2022.117452

Oesau, T., Grohn, P., Pietsch-Braune, S., Antonyuk, S., Heinrich, S.: Novel approach for measurement of restitution coefficient by magnetic particle tracking, Advanced Powder Technology 33(1) (2022) 103362 doi.org/10.1016/j.apt.2021.11.014

Pascot, A., Morel, J.-Y., Antonyuk, S., Jenny, M., Cheny, Y., Kiesgen De Richter, S.: Discharge of vibrated granular silo: A grain scale approach, Powder Technology 397 (2022) 116998, doi.org/10.1016/j.powtec.2021.11.042

Pascot, A., Gaudel, N., Antonyuk, S., Bianchin, J., Kiesgen De Richter, S.: Influence of mechanical vibrations on silo discharge, Chemical Engineering Science 224 (2020) 115749, doi.org/10.1016/j.ces.2020.115749

Laboratory Equipment

Schulze ring shear cell RST-01

Heating/cooling shear cells for varying conditions

Jenike shear cell

Translational, shear behaviour (friction, cohesion)

Brookfield power flow tester

Ring, shear behaviour (friction, cohesion)

WIPOTEC 3000

High speed/high precision scale for discharge experiments

ISO 697 Bulk density measurement

 

Jolting volumeter STAV2003

Tapping bulk density

Several flexible silo discharge set-ups

 

Schulze time consolidation table

Measurement of particle / droplet trajectories

SEM

 

Ultra-Pycnometer (Model 1000T, Quantachrome)

Measurement of material density

Laser diffraction

 

Simulation and Numerical Tools

ANSYS CFX, ANSYS Fluent  

OpenFOAM   

LIGGGHTS / CFDEMcoupling   

EDEM solutions   

TensorFlow