Thermal Finite-Element Model of Electric Machine Cooled by Spray

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 b...

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Main Authors: Christian Bergfried, Samaneh Abdi Qezeljeh, Ilia V. Roisman, Herbert De Gersem, Jeanette Hussong, Yvonne Späck-Leigsnering
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/18/1/84
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author Christian Bergfried
Samaneh Abdi Qezeljeh
Ilia V. Roisman
Herbert De Gersem
Jeanette Hussong
Yvonne Späck-Leigsnering
author_facet Christian Bergfried
Samaneh Abdi Qezeljeh
Ilia V. Roisman
Herbert De Gersem
Jeanette Hussong
Yvonne Späck-Leigsnering
author_sort Christian Bergfried
collection DOAJ
description 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.
format Article
id doaj-art-5d62889a3e864ac18b0544ce9ec7e4ee
institution Kabale University
issn 1996-1073
language English
publishDate 2024-12-01
publisher MDPI AG
record_format Article
series Energies
spelling doaj-art-5d62889a3e864ac18b0544ce9ec7e4ee2025-01-10T13:17:03ZengMDPI AGEnergies1996-10732024-12-011818410.3390/en18010084Thermal Finite-Element Model of Electric Machine Cooled by SprayChristian Bergfried0Samaneh Abdi Qezeljeh1Ilia V. Roisman2Herbert De Gersem3Jeanette Hussong4Yvonne Späck-Leigsnering5Institute for Accelerator Science and Electromagnetic Fields (TEMF), Technische Universität Darmstadt, 64289 Darmstadt, GermanyGraduate School of Excellence Computational Engineering (CE), Technische Universität Darmstadt, 64289 Darmstadt, GermanyInstitute for Fluid Mechanics and Aerodynamics (SLA), Technische Universität Darmstadt, 64289 Darmstadt, GermanyInstitute for Accelerator Science and Electromagnetic Fields (TEMF), Technische Universität Darmstadt, 64289 Darmstadt, GermanyGraduate School of Excellence Computational Engineering (CE), Technische Universität Darmstadt, 64289 Darmstadt, GermanyInstitute for Accelerator Science and Electromagnetic Fields (TEMF), Technische Universität Darmstadt, 64289 Darmstadt, GermanyThe 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.https://www.mdpi.com/1996-1073/18/1/84spray coolingfinite-element methodquasi-3Dthermal model
spellingShingle Christian Bergfried
Samaneh Abdi Qezeljeh
Ilia V. Roisman
Herbert De Gersem
Jeanette Hussong
Yvonne Späck-Leigsnering
Thermal Finite-Element Model of Electric Machine Cooled by Spray
Energies
spray cooling
finite-element method
quasi-3D
thermal model
title Thermal Finite-Element Model of Electric Machine Cooled by Spray
title_full Thermal Finite-Element Model of Electric Machine Cooled by Spray
title_fullStr Thermal Finite-Element Model of Electric Machine Cooled by Spray
title_full_unstemmed Thermal Finite-Element Model of Electric Machine Cooled by Spray
title_short Thermal Finite-Element Model of Electric Machine Cooled by Spray
title_sort thermal finite element model of electric machine cooled by spray
topic spray cooling
finite-element method
quasi-3D
thermal model
url https://www.mdpi.com/1996-1073/18/1/84
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AT samanehabdiqezeljeh thermalfiniteelementmodelofelectricmachinecooledbyspray
AT iliavroisman thermalfiniteelementmodelofelectricmachinecooledbyspray
AT herbertdegersem thermalfiniteelementmodelofelectricmachinecooledbyspray
AT jeanettehussong thermalfiniteelementmodelofelectricmachinecooledbyspray
AT yvonnespackleigsnering thermalfiniteelementmodelofelectricmachinecooledbyspray