Work

Thermal Finite-Element Model of Electric Machine Cooled by Spray

Year: 2024

Type: article

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.

Source: Energies

DOI: 10.3390/en18010084

Authors: Christian Bergfried, Samaneh Abdi Qezeljeh, Ilia V. Roisman, Herbert De Gersem, Jeanette Hussong, Yvonne Späck-Leigsnering

Institution: Technische Universität Darmstadt

Language: English

Topic: Electric Motor Design and Analysis

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $2,955