Measurements and Simulations of the Convective Heat Transfer Coefficients on the End Windings of an Electrical Machine | IEEE Journals & Magazine | IEEE Xplore

Measurements and Simulations of the Convective Heat Transfer Coefficients on the End Windings of an Electrical Machine


Abstract:

The prediction of the thermal behavior of an electrical machine in the design process basically depends on the used boundary conditions such as the convective heat transf...Show More

Abstract:

The prediction of the thermal behavior of an electrical machine in the design process basically depends on the used boundary conditions such as the convective heat transfer coefficient. Due to the complicated shape of the end windings, the heat transfer coefficient has to be identified empirically by using thermopiles as heat flux sensors placed at certain positions on the end windings, because an analytical derivation is not feasible. This paper presents the results of the measured values of the heat transfer on the end windings of an electrical machine. The gained coefficients are compared to the results obtained by numerical simulations using commercial software for computational fluid dynamics. The simulation results are discussed according to the validity of the gained heat transfer coefficient. The configuration of the simulation has been tested on a cylindrical shape in a cross-flow.
Published in: IEEE Transactions on Industrial Electronics ( Volume: 59, Issue: 5, May 2012)
Page(s): 2299 - 2308
Date of Publication: 14 July 2011

ISSN Information:


References

References is not available for this document.