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KIT Engineering









We congratulate the Akaflieg at KIT on the successful maiden flight of their tailless glider, the AK-X. On September 30, the aircraft took off for the first time at the Giebelstadt airfield. Under the patronage of the ISTM, more than 100 KIT students developed and built the AK-X over a period of more than 15 years alongside their studies and on a volunteer basis. The ISTM and Akaflieg share a close partnership, which has been further strengthened under the leadership of Prof. Dr.-Ing. Bettina Frohnapfel, who is also an honorary member of Akaflieg. The joint “Aerodynamics” lecture is a highlight of this long-standing collaboration. A detailed report on the maiden flight can be found in the Akaflieg blog post at https://akaflieg-karlsruhe.de/die-ak-x-fliegt/

On Monday and Tuesday, September 21 and 22, the seventh Hydrogen Engine Conference, “H2ICE + REFUELS 2025,” took place at the Karlsruhe Congress Center. Through numerous technical presentations, participants had the opportunity to expand their knowledge in the hydrogen engine division and ReFuels. The conference was held under the provocative theme “H2ICE or ReFuels?” In addition to technical aspects, the presentations explored social, political, and international market-based perspectives on these promising future technologies. Furthermore, the first day of the event featured a 45-minute panel discussion moderated by Dr. Holger Ohmstedt (Head of the NDR Business News Department) with Mr. Peter Metzinger (Mr. Campaigning AG).

The teams led by Professor Christian Koos, Dr. Philipp Dietrich, and Dr. Matthias Lauermann have been nominated for the German Future Award by the Federal President.
At the Institute of Photonics and Quantum Electronics (IPQ) and the Institute of Microstructure Technology (IMT) at KIT, the three nominees have found new ways to meet the growing demand for fast and efficient data exchange.
To achieve this, they are relying on light instead of electricity. Their new methods make it possible to efficiently test optical microchips and precisely integrate them into high-performance systems. These innovations have been brought to industrial application through the KIT spin-offs Vanguard Automation and Keystone Photonics. In this way, they contribute to faster, more scalable, and more energy-efficient data processing.
KIT press release

Two early-career researchers from Karlsruhe Institute of Technology (KIT) have been successful in the latest call for Starting Grants from the European Research Council (ERC): In the COOLWEAVE project, Dr. Jingyuan Xu is developing a climate-friendly cooling technology. In the DATAARK project, Dr. Maryia Rusak is investigating how a classification system for building information developed across Europe after the Second World War and influenced major architectural projects. The two five-year projects will each receive EUR 1.5 million in funding.

New Mechanism Causes Float to Rotate in a Fixed Direction Solely Through Flows at Water Surface. Directed rotational motion is widespread in nature and technology. At small scales, however, it is difficult to generate. . Researchers from the Karlsruhe Institute of Technology (KIT) and partners in China are now presenting a mechanism in which flows at a water surface alone can cause a floating object to rotate controllably in a single direction.Using this mechanism, they assembled ultrathin fibers into structured bundles – for example to produce low-loss high-frequency transmission lines or surgical suture. The findings were published in Science Advances. (DOI: 10.1126/sciadv.aed5495)

Buildings today typically rely on separate systems to provide electricity, heating and cooling. A research team at the Karlsruhe Institute of Technology (KIT) has now developed a hybrid energy system that delivers all three simultaneously from the same surface by combining solar energy with the coldness of outer space. At the heart of the system is a transparent cooling layer that radiates heat into outer space as infrared radiation while allowing sunlight to pass through. The researchers successfully demonstrated the concept with a prototype under outdoor conditions and see it as a potential building block for multifunctional building envelopes. Results in Cell Reports Physical Science. (DOI: 10.1016/j.xcrp.2026.103492)

