The Ventilation Effect on Stator Convective Heat Transfer of an Axial-Flux Permanent-Magnet Machine

Author

Yew Chuan Chong ; Echenique Subiabre, Estanislao J. P. ; Mueller, M.A. ; Chick, J. ; Staton, D.A. ; McDonald, A.S.

Author_Institution

Inst. for Energy Syst., Univ. of Edinburgh, Edinburgh, UK

Volume

61

Issue

8

fYear

2014

fDate

Aug. 2014

Firstpage

4392

Lastpage

4403

Abstract

This paper investigates the effect of the inlet configuration on cooling for an air-cooled axial-flux permanent-magnet (AFPM) machine. Temperature rises in the stator were measured and compared with results predicted using computational fluid dynamic (CFD) methods linked to a detailed machine loss characterization. It is found that an improved inlet design can significantly reduce the stator temperature rises. Comparison between the validated CFD model results and the values obtained from heat transfer correlations addresses the suitability of those correlations proposed specifically for AFPM machines.

Keywords

computational fluid dynamics; heat transfer; permanent magnet machines; stators; ventilation; AFPM machine; CFD methods; air-cooled axial-flux permanent-magnet machine; computational fluid dynamic methods; heat transfer correlations; inlet design improvement; machine loss characterization; stator convective heat transfer; ventilation effect; Coils; Iron; Magnetic cores; Magnetic flux; Rotors; Stators; Temperature measurement; Air cored; cooling; direct drive; eddy currents; electric machines; fluid dynamics; loss measurement; permanent-magnet machines; thermal analysis;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2013.2284151

Filename

6616617