@misc{RueppelDornKukeetal., author = {R{\"u}ppel, Gernot Wilhelm and Dorn, Oliver Niklas and Kuke, Felix and Ulke-Winter, Lars and Seidlitz, Holger}, title = {Optical tape detection using an IR camera to create a digital twin of rotationally symmetrical wet-wound FRP components}, series = {Journal of Engineering 360}, volume = {1 (2024)}, journal = {Journal of Engineering 360}, number = {1/24}, publisher = {Index Copernicus}, issn = {3071-7507}, doi = {10.5604/01.3001.0054.8851}, pages = {46 -- 57}, abstract = {Wet-winding is used to manufacture rotationally symmetrical components such as pipes and pressure vessels, as well as non-rotationally symmetrical components like T-connectors. During this process, a resin-impregnated fiber (e.g., glass or carbon fiber) is wound around a core. The winding pattern influences the mechanical properties, including stiffness and strength of the component, and is optimized based on the expected loads. In practice, however, factors such as tape tension and resin content can cause deviations from the predefined winding pattern. This paper proposes a measuring system utilizing an IR-camera to record the winding pattern during production. The collected data is processed and converted into a digital twin for further analysis.}, language = {en} } @misc{OstSeidlitzUlkeWinteretal., author = {Ost, Lucas and Seidlitz, Holger and Ulke-Winter, Lars and Kuke, Felix}, title = {Development of a spherical high-pressure tank for hydrogen storage in mobile and stationary applications}, series = {Energy Technology}, journal = {Energy Technology}, publisher = {Wiley}, issn = {2194-4288}, doi = {10.1002/ente.202300942}, pages = {5}, abstract = {In the sub-project Mukran of the BMBF-funded flagship project TransHyDE, spherical and nearly spherical-shaped (isotensoids with short cylindrical spacer) high-pressure tanks are developed for hydrogen storage. This article presents the planned work of the Chair of Polymer-based Lightweight Design at the BTU Cottbus-Senftenberg and the research division PYCO at the Fraunhofer IAP. The research topics include the fiber-compatible design of the liners, the rule-based optimization of the layer structure of the load-bearing overwrap made of carbon fiber-reinforced plastic, the development of a fiber placement strategy, and the integration of the tanks into a frame as a mobile storage solution.}, language = {en} } @misc{KepirSeidlitzUlkeWinteretal., author = {Kepir, Yusuf and Seidlitz, Holger and Ulke-Winter, Lars and Felix, Kuke}, title = {Lightweight heat exchanger design using graphene-reinforced ceramics : a comparative study of dimensional and material effects}, series = {Proceedings of the 4th International Online Conference on Materials, 3-6 November 2025}, journal = {Proceedings of the 4th International Online Conference on Materials, 3-6 November 2025}, publisher = {MDPI}, address = {Basel}, abstract = {In high-temperature environments, heat exchangers require lightweight designs, high thermal resistance, and high effectiveness. Graphene-reinforced ceramic matrix composites (G-CMC) offer promising thermal properties for such applications. This study investigates the effectiveness changes of a block-type heat exchanger made of G-CMC, depending on the length and design, leveraging the potential of 3D printing in the production of complex geometries.}, language = {en} } @misc{KepirSeidlitzUlkeWinteretal., author = {Kepir, Yusuf and Seidlitz, Holger and Ulke-Winter, Lars and Kuke, Felix}, title = {Geometric optimization and advanced material integration for enhanced thermal performance of compact cross-flow heat exchangers in high-temperature applications}, series = {Proceedings of the 6th International Electronic Conference on Applied Sciences, 9-11 December 2025}, journal = {Proceedings of the 6th International Electronic Conference on Applied Sciences, 9-11 December 2025}, publisher = {MDPI}, address = {Basel}, abstract = {Heat exchangers used in high-temperature environments require lightweight designs with high thermal resistance and efficiency. This study numerically investigates the thermal performance of a multi-channel compact cross-flow heat exchanger, focusing on geometric configurations and material selection.}, language = {en} }