Thermal Finite-Element Model of Electric Machine Cooled by Spray

Christian Bergfried (), Samaneh Abdi Qezeljeh, Ilia V. Roisman, Herbert De Gersem (), Jeanette Hussong and Yvonne Späck-Leigsnering
Additional contact information
Christian Bergfried: Institute for Accelerator Science and Electromagnetic Fields (TEMF), Technische Universität Darmstadt, 64289 Darmstadt, Germany
Samaneh Abdi Qezeljeh: Graduate School of Excellence Computational Engineering (CE), Technische Universität Darmstadt, 64289 Darmstadt, Germany
Ilia V. Roisman: Institute for Fluid Mechanics and Aerodynamics (SLA), Technische Universität Darmstadt, 64289 Darmstadt, Germany
Herbert De Gersem: Institute for Accelerator Science and Electromagnetic Fields (TEMF), Technische Universität Darmstadt, 64289 Darmstadt, Germany
Jeanette Hussong: Graduate School of Excellence Computational Engineering (CE), Technische Universität Darmstadt, 64289 Darmstadt, Germany
Yvonne Späck-Leigsnering: Institute for Accelerator Science and Electromagnetic Fields (TEMF), Technische Universität Darmstadt, 64289 Darmstadt, Germany

Energies, 2024, vol. 18, issue 1, 1-16

Abstract: The demand for higher power density in electrical machines necessitates advanced cooling strategies. Spray cooling emerges as a promising and relatively straightforward technology, albeit involving complex physics. In this paper, a quasi-3D thermal finite-element model of stator winding is created by the extrusion of a 2D cross-sectional finite-element model along the winding direction. The cooling effects of the spray impact are simulated as a heat flux that uses an impedance boundary condition at the surface of the winding overhang. The results confirm the advantageous performance of spray cooling, indicating that it may enable a tenfold increase in power density compared to standard air- or water-cooled machines.

Keywords: spray cooling; finite-element method; quasi-3D; thermal model (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/18/1/84/pdf (application/pdf)
https://www.mdpi.com/1996-1073/18/1/84/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:18:y:2024:i:1:p:84-:d:1555517

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().