Experimental investigation of the layer break-up and the rearrangement of particle structures during regeneration in a model filter channel with a high-speed camera

The aim of this work is to investigate the influence of carbon black properties on the rearrangement processes of reactive and inert particles. For this purpose, an existing test rig is used, which enables both the generation and dispersion of these particles. A specially designed model filter channel is used to form the particle layer by filtering varying mixtures of soot and ash particles.

The parameters to be investigated include the reactive-inert ratio (100% reactive, 25% inert - 75% reactive) and the particle loading. The regeneration of the soot particles breaks up the particle layer, which leads to the formation of resuspendable particle structures. These structures are analyzed with regard to their number, size and development over time.

The detachment and resuspension events are documented with a high-speed camera (1000 images per second). The aim of the work is to determine the conditions under which particle structures can be detached and resuspended in order to gain a better understanding of particle rearrangement in filtration systems.

What I can offer you:

• Intensive supervision with regular appointments
• Support with problems or questions at any time

Tasks:

• Creation and tracking of a project plan for your thesis
• Parameter study for various carbon blacks on an existing test bench
• Carrying out the experiments and evaluating the data

Requirements:

• Enjoy trying out and learning new things
• Ability to communicate
• Independent, experimental work
• Basic knowledge of MATLAB or PYTHON is an advantage

Contact information

Please contact me informally so that we can discuss the details in person.

Ole Desens, M.Sc.
E-mail: ole.desens∂kit.edu
Phone: +49 721 608-46573
Strasse am Forum 8
Building 30.70, Room 109
76131 Karlsruhe