Particle measurements

Particle size
  • Camsizer, Retsch GmbH
    • photo-optical measurement of the particle size (ISO 13322-2)
    • suitable for dry particles
    • range between 30 µm and 30 mm
  • Camsizer XT, Retsch GmbH
    • photo-optical measurement of the particle size (ISO 13322-2)
    • suitable for dry and wet particles
    • range between 10 µm and 3 mm (gravity dispersion)
    • range between 1 µm and 1.5 mm (air pressure dispersion)
    • range between 1 µm and 0.6 mm (wet dispersion)
  • Vibratory Sieve Shaker, Fritsch GmbH
Particle and solid densities
  • Gas pycnometer, Ultrapycnometer 1000, Quantachrome GmbH & Co. KG
    • operated with helium
  • Gas pycnometer, Minidens TCO, Grabner Instruments
    • operated with air
  • Pycnometer, GeoPyc 1360, Micromeritics GmbH
    • operated with free-flowing powder (Dry Flow)
Compressibility of particles
  • Penetrometer PNR 20, Petrotest Instruments GmbH & Co KG
    • Measurement of compressibility and tensile strength of granules up to 100 N
Scanning Electron Microscopy
  • Desktop REM „Phenom“, Phenom-World BV
    • magnification: 20 to 24000
  • Desktop REM „Phenom G2 Pro“, Phenom-World BV
    • magnification: 20 to 45000
    • evaluation of the pictures using “Phenom Pro Suite”
Confocal Laser Scanning Microscopy
  • Leica TCS SPE, Leica Microsystems
    • 3 Solid State Laser (488 nm, 532 nm, 635 nm)
    • tuneable spectral detection from 430 to 750 nm
    • spectral resolution 5 nm
White Light Interferometry
  • Contour GT-K0, Bruker
    • Measurement of 3D surface structures
    • automatic adjustment of objectives
    • XY-resolution: 3 µm
    • Z-resolution: VSI 6 nm / PSI 0.008 nm
Measuring particle structures using X-ray tomography
  • CT-ALPHA, ProCon X-ray GmbH
    • sample size up to 300 mm
    • exposure of the sample using up to 160 kV
    • max. resolution (voxel) up to 0.6 µm
    • Visualizing the particle structure and calculation of characteristic parameters (e.g. porosity, fractal dimension, etc.) using MAVI software (Fraunhofer Institute for Industrial Mathematics)
Particle velocity (PIV und PTV)
  • Highspeed camera, HighSpeedStar 3-1K, LaVision GmbH
    • CMOS Sensor
    • 1024x1024 Pixel
    • 12 GB RAM
    • Evaluation using DaVis Software, LaVision GmbH

Analysis of particle moisture content and drying kinetics

Sorption isotherms
  • DVS, DVS Advantage, Surface Measurement Systems Ltd.
Drying kinetics
  • Levitator
    • contactless drying of single droplets (convective)
    • Measurement of volumetric flow rates and gas moisture contents
    • Evaluation of geometric changes of the single droplet using a combination of microscopes and cameras
  • Magnetic suspension balance
    • Investigation of single particle drying kinetics (drying curve)
    • sample size up to 8 g
    • resolution: 1 µg
Moisture content of particles
  • Drying oven, ULP 500, Memmert GmbH & Co. KG
  • Vacuum drying oven, VO 400, Memmert GmbH & Co. KG
  • Moisture analyzer, MA 45/MA 100, Sartorius
  • Coulometer, WDS 400, Sartorius
  • Near-Infrared-Spectrometer (FT-NIR), Matrix-F, Bruker
    • Measurements in contact and contactless
    • suitable for lab-scale measurements
  • Near-Infrared-Spectrometer (FT-NIR), ANTARIS II At-Line Analysator, Thermo Fisher Scientific GmbH
    • suitable for measurements in the production scale
    • including RESULT software
  • Desktop NMR Spectrometer, Minispec MQ60, Bruker

Thermal and chemical material properties

Glass transition temperature
  • DSC, Netzsch GmbH
Heat capacity and phase transition processes
  • DSC/DTA, Netzsch GmbH

Gas measurement equipment

Gas moisture content measurement using Dew-Point Meters and Infrared-Spectroscopy
  • Optidew Vision, Michell Instruments GmbH
  • NGA 2000 MLT 3, Rosemount Inc.
University Course Drying 2020
30.03.2020 - 02.04.2020 in Magdeburg
University Course Fluidization Technology 2019
04.11.2019 - 07.11.2019 in Hamburg
Appreciation of the research work at the chair with title page of the journal Processes (MDPI)
First project meeting Wigratec InterSpiN
Award for Maciej Jaskulski
Cluster WIGRATEC enters the next round
Arun S. Mujumdar Medal for Prof. E. Tsotsas
Award for best oral presentation
Award for best oral presentation for Christoph Neugebauer on Population Balance Modeling Conference 2018
Faculty Prize 2018
Award for Prof. E. Tsotsas
Honorary Professorship of UCTM, Sofia, for Prof. Tsotsas
University Course Drying 2018
19. March -- 22. March 2018 in Magdeburg
University Course Fluidization Technology 2017
6. - 9. November 2017 in Hamburg
Award on Conference
Best Research Award for Sayali Zarekar on IDS in Gifu, Japan
Award on Conference
Best Poster Award for Christian Rieck at PARTEC 2016 in Nuremberg, Germany
Award on Conference
Best poster award for Vesselin Idakiev at national conference
Award on Conference
Best Presentation Awards on Nordic Baltic Drying Conference 2015
ECCE 2015
27. September - 01. October 2015 in Nice, France
Granulation Workshop 2015
1st July - 3rd July 2015 in Sheffield, UK
University Course Drying 2016
29. March -- 01. April 2016 in Magdeburg
Extension of the Research Training Group 1554
Extension of the funding period for 4.5 years
Award on annual conference
Award for best poster presentation goes to Maryam Dadkhah
Modern Drying Technology Vol. 3
Prof. E. Tsotsas in CES Top 20 Reviewer 2010
Award on Asia Pacific Drying Conference
VDI Ehrenring für Jun.-Prof. Mirko Peglow
University Course Drying 2014
Fundamentals and Applications of Drying Technology