Thermal management of a high speed permanent magnet machine for an aeroengine

La Rocca, A. and Xu, Z. and Arumugam, P. and Pickering, S.J. and Eastwick, C.N. and Gerada, C. and Bozhko, S. (2016) Thermal management of a high speed permanent magnet machine for an aeroengine. In: XXIIth International Conference on Electrical Machines (ICEM '2016), 4-7 September, 2016, Lausanne, Switzerland. (In Press)

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Abstract

The paper describes the mechanical and thermal design of a high speed, high power density synchronous permanent magnet machine for an aero engine starter generator system with a power rating of 150 kW and maximum speed of 32,000 rpm. As both mechanical and thermal aspects have a direct impact on machine overall performance and weight reduction, a critical design optimisation was carried out. Intensive cooling is guaranteed by direct liquid oil-cooling of stationary components; a stator sleeve is also introduced into the airgap to prevent excessive windage. Thermal investigations were carried out by the means of Computational Fluid Dynamics (CFD) and Lumped Parameter Thermal Network (LPTN) analyses. Experimental validation also allowed the identification of most critical machine temperatures and the validation of the models developed. Finite Element Analysis(FEA) is used for the static structural analyses of the statorsleeve.

Item Type: Conference or Workshop Item (Paper)
Keywords: Aerospace Engineering, Cooling, Electric machines, Generators, High Speed Machine, Mechanical Engineering, Permanent magnet motors, Thermal Management
Schools/Departments: University of Nottingham UK Campus > Faculty of Engineering > Department of Electrical and Electronic Engineering
University of Nottingham UK Campus > Faculty of Engineering > Department of Mechanical, Materials and Manufacturing Engineering
Depositing User: Eprints, Support
Date Deposited: 16 Jun 2016 14:29
Last Modified: 14 Sep 2016 07:40
URI: http://eprints.nottingham.ac.uk/id/eprint/34163

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