Design and realization of micro structured surfaces for thermodynamic applications |
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| Authors: | Andreas Schubert Matthias Hackert-Osch?tzchen Gunnar Meichsner Mike Zinecker |
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| Affiliation: | (1) Chair Micromanufacturing Technology, Faculty of Mechanical Engineering, Chemnitz University of Technology, 09107 Chemnitz, Germany;(2) Fraunhofer Institute for Machine Tools and Forming Technology, 09126 Chemnitz, Germany; |
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| Abstract: | The functionality of surfaces, especially for thermodynamic applications, can be enhanced by help of a specific surface modification. Therefore this study investigates different selected surface structures and their influence on the heat transfer capability. Specific micro geometries are in focus of this research. A systematic design and a determination of appropriate thermodynamic micro structures by the help of FEM multiphysics simulations were executed. Afterwards the investigated structures were fabricated applying electrochemical and laser beam machining. Furthermore a systematic analysis of the exactness and the surface quality was carried out, which underlines the potential of these procedures for micro structuring of surfaces for thermodynamic applications. |
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