A research focus of the Institute of Particle Process Engineering of the University of Kaiserslautern is the development of methods for particle concentration, size (mean- and distribution) and velocity measurement with DES- (Dynamic Extinction Spectroscopy). A extinction measurement setup which combines dynamic (statistical) and spectral evaluation methods. The 3D LSS (Light Scattering Sensor) developed at our institute represents another unique sensor setup to measure the sphericity of single particles by interpreting intensity profiles of defined scattering and azimuth angles. A main research aspect is the inline implementation of the measurement method in industrial relevant applications. To successfully accomplish new sensors for specific particle systems, the experimental and simulative experience of more than 10 years is gathered. It was conducted under the direction of Prof. Ripperger and will continue under his successor, Prof. Antonyuk.
Our research verified the SE-Method as suitable for particle system from 1µm to about 3mm and up to 30 vol% concentration to deliver reliable and reproduceable measurements in sprays, emulsions and suspensions.
The future research will be focused on the application of the DES setup for particle sizes starting at 1nm.

Contact: Dipl.-Ing. Marc Weirich

• Schwarz, Nico: Messfähigkeit der Statistischen Extinktionsmethode zur Inline-Messung der Partikelgröße, der Partikelkonzentration und der Partikelgeschwindigkeit; Universität Kaiserslautern 2019; ISBN 978-3-95974-109-5

• Schwarz, Nico; Ripperger, Siegfried; Antonyuk, Sergiy: Investigations on the Capability of the Statistical Extinction Method for the Determination of Mean Particle Sizes in Concentrated Particle Systems. Particle & Particle Systems Characterization 35 (2018) 9, 1800191

• Frank Babick, Lars Hillemann, Michael Stintz, Tim Dillenburger, Michael Pitz, Albert Hellmann, Sergiy Antonyuk, Siegfried Ripperger, Franz J. T. Huber, Stefan Will, Ruth Wernet, Martin Seipenbusch, Manuel Gensch, Alfred Weber, Dennis Kiesler,Einar Kruis, Rainer Friehmelt, and Bernd Sachweh: Multiparameter Characterization of Aerosols. Chemie Ingenieur Technik 90 (2018) 7, 923-936, https://doi.org/10.1002/cite.201700094

• Michael Pitz, Albert Hellmann, Siegfried Ripperger, Sergiy Antonyuk: Development of a 3D Light Scattering Sensor for Online Characterization of Aerosol Particles. Particle & Particle Systems Characterization 35 (2018) 1800045

• Schwarz, N.: Messfähigkeit der Statistischen Extinktionsmethode zur Inline-Messung der Partikelgröße, der Partikelkonzentration und der Partikelgeschwindigkeit, Dissertation, TU Kaiserslautern, 2019.

• Dannigkeit, F.: Statistische Extinktionsmethoden zum Inline-Monitoring von Partikelprozessen, Dissertation, TU Kaiserslautern, 2015.

• Steinke, L.: Messverfahren zum Monitoring von Fällungsprozessen sowie Untersuchung eines neuen Verfahrens zur CaCO₃-Fällung, Dissertation, TU Kaiserslautern, 2013.

• CFD Simulation
• Matlab