Experimental characterisation of radial oil spray cooling on a stator with hairpin windings

Yew Chuan Chong, James Goss, Mircea Popescu, Dave Staton, Chuan LIU, David Gerada, Zeyuan Xu, Chris Gerada

Research output: Contribution to conferencePaperpeer-review

Abstract

Thermal management is critical to increase the power density and the continuous operating limit of electric motors due to the drive for electrification of the automotive industry. A more advanced active cooling is required and direct oil spray cooling method is an attractive solution because it can give effective convective heat transfer. However, the technical literature providing practical guidelines of how oil spray cooling should be applied to stator with hairpin winding is limited. This paper presents the experimental characterisation of radial oil spray cooling by using different spray nozzles. The test data is analysed to investigate the impact of nozzle velocity on the temperature variation of the end windings.

Original languageEnglish
Pages879-884
Number of pages6
DOIs
Publication statusPublished - 2020
Event10th International Conference on Power Electronics, Machines and Drives, PEMD 2020 - Virtual, Online
Duration: 15 Dec 202017 Dec 2020

Conference

Conference10th International Conference on Power Electronics, Machines and Drives, PEMD 2020
CityVirtual, Online
Period15/12/2017/12/20

Keywords

  • Electric machine
  • Hairpin winding
  • Oil spray cooling
  • Thermal management

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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