Filter media design based on analytics of µCT scans and simulation of filtration processes

J. Becker, C. Kronsbein, L. Cheng*, R. Westerteiger, A. Wiegmann, Math2Market GmbH, Germany

To address the growing demands on filter efficiency and life time, the industry continuously needs to improve filter materials and filters. One possibility to achieve this goal is to adjust the pore structure and fiber structure of the filter medium. Because production costs of new materials are high, it is beneficial to use computer simulations to accelerate the design cycle of new materials. In this talk, we present the necessary workflow:

At first, we take a µCT scan of a filter medium which is to be improved. On the segmented images, we can simulate filtration processes and thus understand how air flow, particle motion, particle capture and filter clogging happen in this medium.

In the next step, we want to modify the filter medium. For this, the segmented µCT images alone are not sufficient, as they could only be modified pixel by pixel. So, to enable filter media design, the µCT images must be analyzed for the geometric properties first, and then a 3D structure model must be created based on those geometric properties. This model can then be used as a starting point for the media design.

We will present how to analyze the µCT scan for porosity, fiber diameter, fiber orientation and fiber curvature and how to use those parameters to create a realistic model of the imaged sample.

Session: G9 - Modelling and Simulation II
Day: 12 October 2016
Time: 13:00 - 14:15 h

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