Characterizing the convective wall heat transfer on convoluted shapes in the end-region of an induction machine

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandBegutachtung

Abstract

Simulation of the heat transfer at the end-windings of an electric machine is often restricted by the quality of the coefficients used in the simulation model. This paper presents a method of obtaining correlations between the convective wall heat transfer coefficient (WHTC) and parameters of the end-region of an electrical machine and its operational conditions. The data have been evaluated by computational fluid dynamics (CFD) and validated by measurements. Dimensionless numbers for the WHTCs have been correlated to the simulated data by the Gauss-Newton method. This characterization provides a way of calculating values for the convective WHTC depending on the rotational speed and the end-shield geometry. Due to the used dimension analysis, the result is applicable on scaled geometries. It is not an exact method for calculating the convective WHTC, but provides a tool with sufficient accuracy for most engineering purposes.

Originalspracheenglisch
TitelProceedings - 2012 20th International Conference on Electrical Machines, ICEM 2012
Seiten1219-1226
Seitenumfang8
DOIs
PublikationsstatusVeröffentlicht - 14 Dez 2012
Veranstaltung2012 20th International Conference on Electrical Machines, ICEM 2012 - Marseille, Frankreich
Dauer: 2 Sep 20125 Sep 2012

Publikationsreihe

NameProceedings - 2012 20th International Conference on Electrical Machines, ICEM 2012

Konferenz

Konferenz2012 20th International Conference on Electrical Machines, ICEM 2012
Land/GebietFrankreich
OrtMarseille
Zeitraum2/09/125/09/12

ASJC Scopus subject areas

  • Elektrotechnik und Elektronik
  • Maschinenbau

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