Determination of forced convection coefficient over a flat side of coil

Payam Shams Ghahfarokhi, Ants Kallaste, Toomas Vaimann, Anton Rassolkin, Anouar Belahcen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

6 Citations (Scopus)

Abstract

The paper presents analytical and experimental determination of the forced convection heat transfer coefficients over the flat side of a permanent magnet synchronous generator coil. In the analytical part, the forced convection coefficients at different wind speeds are calculated based on various known equations of the forced convection heat transfer coefficient with unhealed starting length. The experimental part consists of loading the coil with DC current and measurements of the coil temperatures with thermal sensors while it was inside a wind tunnel. Based on the measurement, the convection coefficients were found. In the final part, the experimental and analytical results are compared. It is shown that the accuracy of the analytical results is more precise in high turbulent flows.
Original languageEnglish
Title of host publicationProceedings of the 58th IEEE International Scientific Conference on Power and Electrical Engineering of Riga Technical University, RTUCON 2017
PublisherIEEE
Number of pages4
ISBN (Electronic)978-1-5386-3846-0
DOIs
Publication statusPublished - 2017
MoE publication typeA4 Article in a conference publication
EventInternational Scientific Conference on Power and Electrical Engineering of Riga Technical University - Riga, Latvia
Duration: 12 Oct 201713 Oct 2017
Conference number: 58

Conference

ConferenceInternational Scientific Conference on Power and Electrical Engineering of Riga Technical University
Abbreviated titleRTUCON
CountryLatvia
CityRiga
Period12/10/201713/10/2017

Keywords

  • flat surface
  • Forced convection heat transfer coefficent
  • Laminar and turbulent flow

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