Determination of heat transfer coefficient of finned housing of a TEFC variable speed motor

Payam Shams Ghahfarokhi*, Ants Kallaste, Andrejs Podgornovs, Anouar Belahcen, Toomas Vaimann, Bilal Asad

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

This paper proposes the analytical calculation of the heat transfer coefficient from the housing of a totally enclosed fan cooled (TEFC) machine during the active cooling. A particular focus is on the calculation of the heat transfer coefficient from the machine’s housing for different fan rotational speeds. The paper describes the challenges and provides solutions to dominate them during the analytical calculation of the heat transfer coefficient a TEFC electrical machine. Finally, the proposed method is validated experimentally on a totally enclosed fan cooled synchronous reluctance motor, and good correspondence between the analytical and experimental results is obtained.

Original languageEnglish
Number of pages9
JournalElectrical Engineering
DOIs
Publication statusPublished - 10 Nov 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • AC machines
  • Convection coefficient
  • Forced cooling
  • Synchronous reluctance motor
  • Thermal analysis
  • Totally enclosed fan cooled (TEFC)

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