At the Vienna University of Technology, a specially shaped tube, the so-called “axial cyclone”, has been developed, which rotates the water stream. As a result of the centrifugal force then occurring, particles of higher density are pushed outwards and can be deposited there.
The flow behavior was, on the one hand, simulated on the computer and, on the other hand, measured in a laboratory test tube. With this innovation, the service life of hydroelectric turbines can be significantly increased. Since hydropower plays an important role in renewable energy generation in Austria, the realization and application of this technology can lead to more cost-effective, sustainable use of hydropower.