Professor Geraint Jewell

PhD, BEng

School of Electrical and Electronic Engineering

Professor

Lecturer for Aerospace Engineering

Headshot of Geraint Jewell
Profile picture of Headshot of Geraint Jewell
g.jewell@sheffield.ac.uk

Full contact details

Professor Geraint Jewell
School of Electrical and Electronic Engineering
Profile

I am a graduate of the Department (BEng 1988, PhD 1992) and have been a member of the academic staff since 1994. During my time on the academic staff I held an EPSRC Advanced Research Fellowship (2000-2005) and a Royal Society Industry Fellowship at Rolls-Royce (2006-2008).

I have been Director of the Rolls-Royce University Technology Centre in Advanced Electrical Machines since 2006 and Director of the EPSRC Future Electrical Machines Manufacturing Hub since 2019.

Alongside my mainstream academic roles within the Department, I served as the Faculty of Engineering’s first Faculty Director of Research and Innovation from 2008-2011 and as Head of the Department from 2013 to 2019.

My PhD research was concerned with the electromagnetic modelling and design of capacitor- discharge multipole magnetizing fixtures for NdFeB magnets, which at that time were a relatively recent development that posed many magnetization challenges.

I then applied the underpinning transient modelling to the problem of eddy currents in pulsed magnetometry for permanent magnet characterisation.

Since becoming a member of academic staff my interests have broadened to cover many aspects of electromechanical devices including electrical machines (permanent magnet, switched reluctance, synchronous reluctance) and linear actuators.

Much of this research has been directed towards aero-engine applications in collaboration with Rolls-Royce. This research has included high temperature devices (many around 400℃ but with one up to 800℃) and several demonstrator starter-generators for aero-engines.

I have also had a long-standing interest in core loss calculation methods for electrical machines. I have supervised ~20 PhD students to completion across a wide range of electromagnetic and electro-mechanical topics.

Research interests
  • Power dense electrical machines for aerospace applications
  • Linear electromagnetic actuators
  • Electromagnetic modelling of novel devices
Publications

Journal articles

  • Stone E, Panagiotou P, Mühlthaler J, Mills A, Lambourne A & Jewell G (2026) . EEE Transactions on Industry Applications, 1-12.
  • Stone EJW, Panagiotou PA, Mühlthaler J, Mills AR, Lambourne A & Jewell GW (2025) . IEEE Transactions on Industry Applications, 1-12.
  • Zhu W, Sun Y, Chen X, Wang J, Jewell GW, Chong E & Reeh A (2025) . IEEE Transactions on Transportation Electrification, 1-1.
  • Zhu W, Sun Y, Chen X & Jewell GW (2025) . IEEE Transactions on Transportation Electrification, 1-1.
  • Stone EJW, Panagiotou PA, Mühlthaler J, Reeh A, Lambourne A & Jewell GW (2025) . IEEE Transactions on Industry Applications, 61(4), 6110-6119.
  • Zhu W, De Gaetano D, Sun X, Li H, Chen X, Griffo A & Jewell GW (2025) . IEEE Transactions on Energy Conversion, 1-11.
  • Jones LM, Winter A, Tinkler L, Jewell GW & Ghadbeigi H (2024) . Journal of Magnetism and Magnetic Materials, 607.
  • Zhang G & Jewell GW (2024) . World Electric Vehicle Journal, 15(1).
  • Chen X, Wu H, Ede JD, Jewell GW, Jones LM & Ghadbeigi H (2023) . Journal of Magnetism and Magnetic Materials, 584.
  • De Gaetano D, Zhu W, Sun X, Chen X, Griffo A & Jewell GW (2023) . IEEE Transactions on Magnetics, 59(11).
  • Goodall AD, Yiannakou G, Chechik L, Mitchell RL, Jewell GW & Todd I (2023) . Materials & Design, 230.
  • Gaetano DD, Zhu W, Sun X, Chen X, Griffo A & Jewell GW (2023) . IEEE Transactions on Dielectrics and Electrical Insulation, 30(3), 1312-1321.
  • Tiwari D, Miller D, Farnsworth M, Lambourne A, Jewell GW & Tiwari A (2023) . Sensors, 23(8).
  • Goodall AD, Chechik L, Mitchell RL, Jewell GW & Todd I (2023) . Additive Manufacturing, 70.
  • Yadav R, Jewell G, Jones LM & Ghadbeigi H () Coupled mechanical-magnetic analysis of cut-edge damage in thin sheet electrical steels. International Journal of Mechanical Sciences.

Conference proceedings

  • Imam MF, Jewell GW, Khan F, Khan D & Ijaz A (2025) . IET Conference Proceedings, Vol. 2025(3) (pp 141-148)
  • Sun X, Zhu W, Chen X, Griffo A & Jewell G (2024) . 2024 IEEE Energy Conversion Congress and Exposition (ECCE) (pp 3895-3901), 20 October 2024 - 24 October 2024.
  • Stone EJW, Panagiotou PA, Mühlthaler J, Mills AR, Lambourne A & Jewell GW (2024) . 2024 International Conference on Electrical Machines (ICEM) (pp 01-08), 1 September 2024 - 4 September 2024.
  • Stone EJW, Panagiotou PA, Mühlthaler J, Mills AR, Lambourne A & Jewell GW (2024) . 2024 International Conference on Electrical Machines (ICEM) (pp 1-7), 1 September 2024 - 4 September 2024.
  • Ward MJ, Tinkler L, Chen X, Atkinson G, Paterson L, Miscandlon J, Jewell GW & O'Keefe L (2023) . IET Conference Proceedings, Vol. 2023(29) (pp 15-19)
  • Tinkler L, Winter A, Gibson R & Jewell GW (2023) . 2023 13th International Electric Drives Production Conference (EDPC) (pp 1-5), 29 November 2023 - 30 November 2023.
  • Pisanelli G, Winter A, Beauchamp A, Macdonald M, Tinkler L & Jewell GW (2023) . 2023 13th International Electric Drives Production Conference (EDPC) (pp 1-10), 29 November 2023 - 30 November 2023.
  • Chen H, Boettcher C, Wang J, Chong E & Jewell GW (2023) . 2023 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific) (pp 1-5), 28 November 2023 - 1 December 2023.
  • Sun Y, Chen X, Zhu W & Jewell GW (2023) . 2023 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific) (pp 1-8), 28 November 2023 - 1 December 2023.
  • Zhu W, Gaetano DD, Sun X, Li H, Chen X, Griffo A, Jewell GW, Zhu ZQ, Liu C, Yang L , Yuan Y et al (2023) . 2023 26th International Conference on Electrical Machines and Systems (ICEMS) (pp 952-957), 5 November 2023 - 8 November 2023.
  • Li H, Zhu W, Liu C, Sun X, De Gaetano D, Chen X, Griffo A, Zhu ZQ, Jewell GW, Yang L , Yuan Y et al (2023) . 2023 26th International Conference on Electrical Machines and Systems (ICEMS) (pp 1364-1369), 5 November 2023 - 8 November 2023.
  • Panagiotou PA, Stone EJW, Mühlthaler J, Reeh A, Lambourne A & Jewell GW (2023) . 2023 IEEE 14th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED) (pp 554-560), 28 August 2023 - 31 August 2023.
  • Liu H, Jewell GW & Chen X (2023) . 2023 IEEE International Electric Machines & Drives Conference (IEMDC) (pp 1-7), 15 May 2023 - 18 May 2023.

Preprints

  • Herdea I-A, Tiwari D, Tiwari A, Farnsworth M, Jewell GW & Lambourne A (2026) , Elsevier BV.
Professional activities and memberships
  • Rolls-Royce University Technology Centre in Advanced Electrical Machines

Links

Electrical Machines and Drives  Rolls-Royce University Technology Centre