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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These investigations were supported by the German Research Foundation and by the Federal Ministry of Economics and Technology on account of a decision of the German Bundestag.
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Schubert, A., Hackert-Oschätzchen, M., Meichsner, G. et al. Design and realization of micro structured surfaces for thermodynamic applications. Microsyst Technol 17, 1471–1479 (2011). https://doi.org/10.1007/s00542-011-1331-x
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DOI: https://doi.org/10.1007/s00542-011-1331-x