CFD Based Aerodynamics Conjugate Heat Transfer and Airgap Fluid Flow Thermal Analysis to a Wheel Hub Motor for Electric Scooters

Arun Mambazhasseri Divakaran; Essam Abo-Serie; Evangelos Gkanas; James Jewkes; Simon Shepherd

doi:10.1007/978-3-031-30960-1_3

CFD Based Aerodynamics Conjugate Heat Transfer and Airgap Fluid Flow Thermal Analysis to a Wheel Hub Motor for Electric Scooters

Arun Mambazhasseri Divakaran, Essam Abo-Serie, Evangelos Gkanas, James Jewkes, Simon Shepherd

Centre for E-Mobility and Clean Growth

University of Leicester

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

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Abstract

The geometry of commercially available wheel hub motors inherently restricts packaging space and may prevent the introduction of more sophisticated, efficient, and expensive cooling systems. Due to the limited available space in the wheels, commercial hub motors often rely on aerodynamic passive cooling. The small air-gap (0.5–1 mm) between the coils and the magnets results in heat transfer to the magnets and consequently increases their temperature. As a result, the perfe- ormance of the permanent magnets (PMs) will be limited and also will heavily affect their lifetime; thus, advanced cooling strategies must be introduced. In the current study, a three-dimensional (3D) thermal model was developed for a commercially available 500 W scooter hub motor under a constant heat load of 180 W using Compu- tational Fluid Dynamics (CFD) (= 64%).The spatial distribution of the temperature for the motor parts are evaluated considering both the internal and external fluid flow dynamics. Further, analysis of airflow in the the gap is performed and the results from the CFD is compared with the published correlations. The flow in such small motor was found to be laminar with Taylor number below 40. Results also showed that enhancement of the cooling is necessary to avoid damage of the winding vernish and to reduce the magnets temperature particularly when the motor works at high torque with low efficiency.

Original language	English
Title of host publication	Energy and Sustainable Futures
Subtitle of host publication	Proceedings of the 3rd ICESF, 2022
Editors	Jonathan D. Nixon, Amin Al-Habaibeh, Vladimir Vukovic, Abhishek Asthana
Publisher	Springer
Chapter	3
Pages	21-29
Number of pages	9
ISBN (Electronic)	978-3-031-30960-1
ISBN (Print)	978-3-031-30959-5
DOIs	https://doi.org/10.1007/978-3-031-30960-1_3
Publication status	Published - 17 Aug 2023
Event	3rd International Conference on Energy and Sustainable Futures (ICESF) - Coventry University, Coventry, United Kingdom Duration: 7 Sept 2022 → 8 Sept 2022 https://www.coventry.ac.uk/research/about-us/research-events/2022/icesf-2022/

Publication series

Name	Springer Proceedings in Energy
ISSN (Print)	2352-2534
ISSN (Electronic)	2352-2542

Conference

Conference	3rd International Conference on Energy and Sustainable Futures (ICESF)
Abbreviated title	ICESF 2022
Country/Territory	United Kingdom
City	Coventry
Period	7/09/22 → 8/09/22
Internet address	https://www.coventry.ac.uk/research/about-us/research-events/2022/icesf-2022/

Bibliographical note

This chapter is licensed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

The images or other third party material in this chapter are included in the chapter's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the chapter's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.

Keywords

Thermal management
Computational fluid dynamics
Taylor’s correlations
Outer-rotor machines

Access to Document

10.1007/978-3-031-30960-1_3Licence: CC BY

PublishedFinal published version, 853 KBLicence: CC BY

Cite this

Mambazhasseri Divakaran, A., Abo-Serie, E., Gkanas, E., Jewkes, J., & Shepherd, S. (2023). CFD Based Aerodynamics Conjugate Heat Transfer and Airgap Fluid Flow Thermal Analysis to a Wheel Hub Motor for Electric Scooters. In J. D. Nixon, A. Al-Habaibeh, V. Vukovic, & A. Asthana (Eds.), Energy and Sustainable Futures: Proceedings of the 3rd ICESF, 2022 (pp. 21-29). (Springer Proceedings in Energy). Springer . https://doi.org/10.1007/978-3-031-30960-1_3

CFD Based Aerodynamics Conjugate Heat Transfer and Airgap Fluid Flow Thermal Analysis to a Wheel Hub Motor for Electric Scooters. / Mambazhasseri Divakaran, Arun; Abo-Serie, Essam; Gkanas, Evangelos et al.
Energy and Sustainable Futures: Proceedings of the 3rd ICESF, 2022. ed. / Jonathan D. Nixon; Amin Al-Habaibeh; Vladimir Vukovic; Abhishek Asthana. Springer , 2023. p. 21-29 (Springer Proceedings in Energy).

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Mambazhasseri Divakaran, A, Abo-Serie, E, Gkanas, E, Jewkes, J & Shepherd, S 2023, CFD Based Aerodynamics Conjugate Heat Transfer and Airgap Fluid Flow Thermal Analysis to a Wheel Hub Motor for Electric Scooters. in JD Nixon, A Al-Habaibeh, V Vukovic & A Asthana (eds), Energy and Sustainable Futures: Proceedings of the 3rd ICESF, 2022. Springer Proceedings in Energy, Springer , pp. 21-29, 3rd International Conference on Energy and Sustainable Futures (ICESF) , Coventry, United Kingdom, 7/09/22. https://doi.org/10.1007/978-3-031-30960-1_3

Mambazhasseri Divakaran A, Abo-Serie E, Gkanas E, Jewkes J, Shepherd S. CFD Based Aerodynamics Conjugate Heat Transfer and Airgap Fluid Flow Thermal Analysis to a Wheel Hub Motor for Electric Scooters. In Nixon JD, Al-Habaibeh A, Vukovic V, Asthana A, editors, Energy and Sustainable Futures: Proceedings of the 3rd ICESF, 2022. Springer . 2023. p. 21-29. (Springer Proceedings in Energy). doi: 10.1007/978-3-031-30960-1_3

Mambazhasseri Divakaran, Arun ; Abo-Serie, Essam ; Gkanas, Evangelos et al. / CFD Based Aerodynamics Conjugate Heat Transfer and Airgap Fluid Flow Thermal Analysis to a Wheel Hub Motor for Electric Scooters. Energy and Sustainable Futures: Proceedings of the 3rd ICESF, 2022. editor / Jonathan D. Nixon ; Amin Al-Habaibeh ; Vladimir Vukovic ; Abhishek Asthana. Springer , 2023. pp. 21-29 (Springer Proceedings in Energy).

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CFD Based Aerodynamics Conjugate Heat Transfer and Airgap Fluid Flow Thermal Analysis to a Wheel Hub Motor for Electric Scooters

Abstract

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Conference

Bibliographical note

Keywords

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