ACHEMA 2018

•••29••• Innovationen Messehighlights Less machine friction, no contamination Researchers from Kaiserslautern take a closer look at drops using 3D high-speed camera technology U sing a 3D high-speed camera system, researchers at the TU Kaiserslautern investigate the behaviour of drops when they encounter surfaces which provide differently formed micro structures, such as nubs, grid or trapezoid. “Here we deal with structures that are significantly smaller than the diameter of a hair, for exam- ple,” says Fabian Krull, who in- vestigates this topic within the scope of his doctorate at the De- partment of Particle Process En- gineering of Professor Dr. Sergiy Antonyuk. They are in a range of 100 nanometer and 10 microm- eter; dimensions not visible to the human eye. And still those structures can influence the im- pingement of drops on a surface in different ways. In order to be able to observe this process in detail, three high-performance cameras are used. “They take pic- tures from different angles”, says Fabian Krull. Software is used to then convert the data to a 3D pic- ture. “That way we can observe step by step what happens when a drop hits different surfaces”, explains Professor Antonyuk. Fur- thermore, the engineers simulate the fall of those drops with their computer models. Research is car- ried out within the framework of the Collaborative Research Centre 926 “Component Surfaces: Mor- phology on a microscale”, which is subsidized by the German Re- search Foundation. The research- ers’ findings might be able to help reduce friction of machines or de- sign surfaces of industrial plants to prevent dust and contamina- tion particles to accumulate on the machines. This would also be use- ful for hospitals so that microor- ganisms cannot adhere to certain things. At ACHEMA, the research- ers will present their technology in hall 9.2, stand A86a. Background If drops of water fall on a lotus leaf, they simply roll off. This phe- nomenon, also known as “lotus effect”, is based on the fact that the surface of those leafs shows unevenness (nubs) which in the end makes the drop roll off. The tiny structures were discovered by the botanist Wilhelm Barthlott in the 1970s thanks to a scanning electron microscope. The very same principle is now used for window glass or wall paint. The researchers are using a 3D high-speed camera technology. Photo: TUK / Thomas Koziel PinCH 3.0 Mit der PinCH-Software in 10 Schritten zu mehr Energieeffizienz und Wirtschaftlichkeit in der Industrie Unser Angebot: – Vertrieb der Software und Support – Durchführung von Pinch-Analysen – Beratung und Coaching – Kurse für den selbstständigen Einsatz Besuchen Sie uns an der ACHEMA: Halle 9.2 Stand D48 www.pinch-analyse.ch Chemap-Filter by INFOLABEL AG Grossrietstrasse 7, CH-8606 Nänikon/Uster P. +41 (0)44 944 93 00, F. 41 (0)44 730 46 28 info@funda.ch, www.funda.ch We are the Swiss manu- facturer of the tried and tested Chemap Filter Systems and a long standing source of know how concerning Funda FilterTech- nology. We offer you a comprehensive service from formation to the launch and upkeep of your individual filter system. TRIED ANDTESTED FILTER SYSTEM, EXCELLENT PERFORMANCE. filtration ® Halle 5.0 • Stand B2