Stator and rotor vent modelling in a MVA rated synchronous machine

P. H. Connor, C. N. Eastwick, S. J. Pickering, C. Gerada, R. Rolston

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

6 Citations (Scopus)

Abstract

An investigation into the solution dependence of a conjugate heat transfer computational fluid dynamics (CFD) model of a synchronous generator, with respect to meshing, has been carried out. Utilising CFD as a tool for investigating the airflow and thermal performance of electrical machines is increasing. Meshing is a vital part of the CFD process, but its importance is often misunderstood or overlooked in the context of electrical machine analyses; partly due to the relative mesh independency of the finite element analysis (FEA) numerical method. This paper demonstrates how a relatively complex, air-cooled generator CFD model can be considerably influenced by changes in the mesh. Flow rate, velocity and windage effects are assessed as a function of the mesh adopted. Mesh changes have been shown to affect the mass flow rate through a single vent by up to 55% and the associated heat transfer coefficient by 128%.

Original languageEnglish
Title of host publicationProceedings - 2016 22nd International Conference on Electrical Machines, ICEM 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages571-577
Number of pages7
ISBN (Electronic)9781509025381
DOIs
Publication statusPublished - 2 Nov 2016
Externally publishedYes
Event22nd International Conference on Electrical Machines, ICEM 2016 - Lausanne, Switzerland
Duration: 4 Sep 20167 Sep 2016

Publication series

NameProceedings - 2016 22nd International Conference on Electrical Machines, ICEM 2016

Conference

Conference22nd International Conference on Electrical Machines, ICEM 2016
Country/TerritorySwitzerland
CityLausanne
Period4/09/167/09/16

Keywords

  • Cooling
  • Energy Efficiency
  • Fluid Dynamics
  • Generators
  • Numerical Simulation
  • Rotating Machines
  • Thermal Analysis
  • Thermal Engineering
  • Vents

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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