Convection Heat Transfer and Flow Calculations Suitable for Electric Machines Thermal Models

By David A. Staton, Andrea Cavagnino. IEEE transactions on industrial electronics (1982. Print), 2008

485 citations recorded by the source corpus.

This paper deals with the formulations used to predict convection cooling and flow in electric machines. Empirical dimensionless analysis formulations are used to calculate convection heat transfer. The particular formulation used is selected to match the geometry of the surface under consideration and the cooling type used. Flow network analysis, which is used to study the ventilation inside the machine, is also presented. In order to focus the discussion using examples, a commercial software package dedicated to motor cooling optimization (Motor-CAD) is considered. This paper provides guidelines for choosing suitable thermal and flow network formulations and setting any calibration parameters used. It may also be considered a reference paper that brings together useful heat transfer and flow formulations that can be successfully applied to thermal analysis of electrical machines.

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/91cc6a7b06e95f964eba879f94fffa31ef7f5ae8

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electrical and Electronic Engineering

1. David A. Howey
2. Georgios D. Demetriades
3. Erik Andersson
4. H. Olsson
5. H. Zelaya-De La Parra

In Electronic, Optical and Magnetic Materials

1. Georgios D. Demetriades
2. Erik Andersson
3. H. Olsson
4. H. Zelaya-De La Parra

In Mechanical Engineering

1. Peter R. N. Childs
2. Andrew S. Holmes
3. David A. Howey
4. Georgios D. Demetriades
5. Erik Andersson
6. H. Olsson
7. H. Zelaya-De La Parra

Citations in the corpus

• Air-Gap Convection in Rotating Electrical Machines (2012, background): “Staton and Cavagnino [10] reviewed convection in electrical machines, focusing on correlations for natural convection around the external casings of cylindrical geometry machines and also on correlatons for forced cooling with fans or water jackets.”
• Thermal Analysis of a PMaSRM Using Partial FEA and Lumped Parameter Modeling (2012, unknown): “When thermal FEA is adopted, conduction in solid elements with a specified conductivity can be modeled, but convection and radiation must be approximated as boundary conditions based on empirical correlations [13]–[18].”
• A Real-Time Thermal Model of a Permanent-Magnet Synchronous Motor (2010, methodology): “Staton and Cavagnino [21] used empirical dimensionless analysis and formulations to calculate convention heat transfer.”