Analysis of Advanced Passive Heatsinks For Electrical Machines Enabled by Additive Manufacturing

2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD 2023) 2023
Martin Sarap, Ants Kallaste, Payam Shams Ghahfarokhi, Toomas Vaimann

This paper presents numerical models of several different natural convection based heatsink designs for an additively manufactured switched reluctance machine. The proposed heatsink designs incorporate geometries that have improved thermal performance but are difficult to produce with conventional methods, making them ideal options for additive manufacturing. The heatsinks are compared to a traditional longitudinal plate fin heatsink model with a heat transfer coefficient of 0.159 W/K. The highest performing proposed heatsink model achieves a heat transfer coefficient of 0.184 W/K, showing that additively manufactured passive heatsinks can provide significantly improved cooling for totally enclosed non-ventilated machines.

Keywords
Geometry, Cooling, Metals, Switches, Switched reluctance motors, Three-dimensional printing, Reluctance machines
DOI
10.1109/WEMDCD55819.2023.10110940
Hyperlink
https://ieeexplore.ieee.org/document/10110940

Sarap, M., Kallaste, A., Shams Ghahfarokhi, P., Vaimann, T. Analysis of Advanced Passive Heatsinks For Electrical Machines Enabled by Additive Manufacturing. In: 2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD 2023), United Kingdom, Newcastle, 13-14 April, 2023. Piscataway: IEEE, 2023, pp.1-6. ISBN 978-1-6654-8694-1. e-ISBN 978-1-6654-8693-4. ISSN 2694-0264. e-ISSN 2380-856X. Available from: doi:10.1109/WEMDCD55819.2023.10110940

Publication language
English (en)