Digitalization of Centrifuges – Helpful or senseless?

Prof. Dr. Hermann Nirschl, Karlsruhe Institute of Technology (KIT), Germany

During the last years digitalization was and is still a major topic in all companies of the process and machinery industry. Besides all business development procedures, the digitalization of processes seems to be a rather challenging task. Although in automotive or aviation industry the future of manufacturing can already be oberved, in the chemical and process industry there is still a long way to go. Digitalization in the industrial sense means in general to develop a ‚digital twin‘ of the process as a digital copy. The big advantage of such a digital twin is the possibility to extensively control not just the single machine by its own but also to control the whole process chain to ensure the quality of the final product at any time.

In general the development requires a simulation of the machine behavior with the material properties, not only for the stationary but also for the dynamic case. The main challenges for an extensive digitalization are the complex material behaviour which is very difficult to describe in a simulative environment and the complex geometries of the machines combined with the complex process behaviour. For the material behaviour, characterisation devices have to be developped which help to implement the material properties directly into the simulation procedure. This is necessary because a direct numerical simulation on a micro scale level where each particle is approximated is far too time consuming. So with multiscale simulations it is possible to derive short cut models which allow to simulate the whole process chain within seconds or even faster. This gives the possibility to simulate not just process parameters but also raw material or energy consumption relations. Those relations could be directly used to optimize the whole process according to inverse simulations.

Finally a digital twin could also be used not even as a 3D design or training tool, it is also valuable to study process conditions with different material parameters or critical conditions. So digitalization is not just a strategy to improve business tools, it will also be a big step to secure and reliable processes. The talk will show the procedure for the development of a digital twin for different kind of centrifuges and discuss the valuable advantages of digitalization for typical separation and classification processes...

Session: K1 - Keynote Lecture I
Day: 22 October 2019
Time: 13:00 - 14:15 h

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