The Fan Design Impact on the Rotor Cooling of Axial Flux Permanent Magnet Machines

A. S. Fawzal; Remus M. Cirstea; Kostas N. Gyftakis; T. J. Woolmer; Mike Dickison; Mike V. Blundell

doi:10.1109/ICELMACH.2016.7732907

The Fan Design Impact on the Rotor Cooling of Axial Flux Permanent Magnet Machines

A. S. Fawzal, Remus M. Cirstea, Kostas N. Gyftakis, T. J. Woolmer, Mike Dickison, Mike V. Blundell

College of Engineering, Environment & Science

YASA Motors Ltd

Research output: Contribution to conference › Paper

10 Citations (Scopus)

951 Downloads (Pure)

Abstract

Thermal management of Axial Flux Permanent Magnet (AFPM) machines is essential because it determines the machine’s continuous power output and reliability. Also, thermal management is required to avoid catastrophic failure due to degradation. To help meet this challenge, a secondary cooling method can be integrated into the rotor, which can yield improved machine performance and reliability. Thermal analysis via Lumped Parameter (LM) networks is usually sufficient in predicting the thermal motor behaviour. Accuracy can be further increased with the help of Computational Fluid Dynamics (CFD), especially for devices with complex flow regions. In this paper, the fan blade was attached to the rotor of a YASA machine for flow validation, and then three different fan blade designs from other engineering applications were adopted, in order to compare the flow characteristic, power requirement and thermal characteristic for AFPM cooling applications.

Original language	English
Pages	2725-2731
DOIs	https://doi.org/10.1109/ICELMACH.2016.7732907
Publication status	Published - 3 Nov 2016
Event	XXIIth International Conference on Electrical Machines - Lausanne, Switzerland Duration: 4 Sept 2016 → 7 Sept 2016

Conference

Conference	XXIIth International Conference on Electrical Machines
Abbreviated title	ICEM'2016
Country/Territory	Switzerland
City	Lausanne
Period	4/09/16 → 7/09/16

Bibliographical note

© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Keywords

Axial flux
Permanent magnet machines
Fluid dynamics
Rotors
Cooling
Fluid flow
Thermal analysis
CFD
SAT
Yokeless and segmented armature machine

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http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=28

Cite this

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title = "The Fan Design Impact on the Rotor Cooling of Axial Flux Permanent Magnet Machines",

abstract = "Thermal management of Axial Flux Permanent Magnet (AFPM) machines is essential because it determines the machine{\textquoteright}s continuous power output and reliability. Also, thermal management is required to avoid catastrophic failure due to degradation. To help meet this challenge, a secondary cooling method can be integrated into the rotor, which can yield improved machine performance and reliability. Thermal analysis via Lumped Parameter (LM) networks is usually sufficient in predicting the thermal motor behaviour. Accuracy can be further increased with the help of Computational Fluid Dynamics (CFD), especially for devices with complex flow regions. In this paper, the fan blade was attached to the rotor of a YASA machine for flow validation, and then three different fan blade designs from other engineering applications were adopted, in order to compare the flow characteristic, power requirement and thermal characteristic for AFPM cooling applications. ",

keywords = "Axial flux, Permanent magnet machines, Fluid dynamics, Rotors, Cooling, Fluid flow, Thermal analysis, CFD, SAT, Yokeless and segmented armature machine",

author = "Fawzal, {A. S.} and Cirstea, {Remus M.} and Gyftakis, {Kostas N.} and Woolmer, {T. J.} and Mike Dickison and Blundell, {Mike V.}",

note = "{\textcopyright} 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.; XXIIth International Conference on Electrical Machines, ICEM'2016 ; Conference date: 04-09-2016 Through 07-09-2016",

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doi = "10.1109/ICELMACH.2016.7732907",

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AU - Fawzal, A. S.

AU - Cirstea, Remus M.

AU - Gyftakis, Kostas N.

AU - Woolmer, T. J.

AU - Dickison, Mike

AU - Blundell, Mike V.

N1 - © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

PY - 2016/11/3

Y1 - 2016/11/3

N2 - Thermal management of Axial Flux Permanent Magnet (AFPM) machines is essential because it determines the machine’s continuous power output and reliability. Also, thermal management is required to avoid catastrophic failure due to degradation. To help meet this challenge, a secondary cooling method can be integrated into the rotor, which can yield improved machine performance and reliability. Thermal analysis via Lumped Parameter (LM) networks is usually sufficient in predicting the thermal motor behaviour. Accuracy can be further increased with the help of Computational Fluid Dynamics (CFD), especially for devices with complex flow regions. In this paper, the fan blade was attached to the rotor of a YASA machine for flow validation, and then three different fan blade designs from other engineering applications were adopted, in order to compare the flow characteristic, power requirement and thermal characteristic for AFPM cooling applications.

AB - Thermal management of Axial Flux Permanent Magnet (AFPM) machines is essential because it determines the machine’s continuous power output and reliability. Also, thermal management is required to avoid catastrophic failure due to degradation. To help meet this challenge, a secondary cooling method can be integrated into the rotor, which can yield improved machine performance and reliability. Thermal analysis via Lumped Parameter (LM) networks is usually sufficient in predicting the thermal motor behaviour. Accuracy can be further increased with the help of Computational Fluid Dynamics (CFD), especially for devices with complex flow regions. In this paper, the fan blade was attached to the rotor of a YASA machine for flow validation, and then three different fan blade designs from other engineering applications were adopted, in order to compare the flow characteristic, power requirement and thermal characteristic for AFPM cooling applications.

KW - Axial flux

KW - Permanent magnet machines

KW - Fluid dynamics

KW - Rotors

KW - Cooling

KW - Fluid flow

KW - Thermal analysis

KW - CFD

KW - SAT

KW - Yokeless and segmented armature machine

U2 - 10.1109/ICELMACH.2016.7732907

DO - 10.1109/ICELMACH.2016.7732907

M3 - Paper

SP - 2725

EP - 2731

T2 - XXIIth International Conference on Electrical Machines

Y2 - 4 September 2016 through 7 September 2016

ER -

The Fan Design Impact on the Rotor Cooling of Axial Flux Permanent Magnet Machines

Abstract

Conference

Bibliographical note

Keywords

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Cite this