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Computational fluid dynamics modelling of an entire synchronous generator for improved thermal management

Connor, Peter H.; Pickering, S.J.; Gerada, C.; Eastwick, Carol; Micallef, Christopher; Tighe, Chris

Authors

Peter H. Connor

S.J. Pickering

C. Gerada chris.gerada@nottingham.ac.uk

Carol Eastwick

Christopher Micallef

Chris Tighe

Abstract

This study is the first in a series dedicated to investigating the airflow and thermal management of electrical machines. Owing to the temperature dependent resistive losses in the machine's windings, any improvement in cooling provides a direct reduction in losses and an increase in efficiency. This study focuses on the airflow which is intrinsically linked to the thermal behaviour of the machine as well as the windage power consumed to drive the air through the machine. A full computational fluid dynamics (CFD) model has been used to analyse the airflow around all major components of the machine. Results have been experimentally validated and investigated. At synchronous speed the experimentally tested mass flow rate and windage torque were under predicted by 4% and 7%, respectively, by the CFD. A break-down of torque by component shows that the fan consumes approximately 87% of the windage torque.

Journal Article Type Article
Publication Date Mar 1, 2013
Journal IET Electric Power Applications
Print ISSN 1751-8660
Electronic ISSN 1751-8679
Publisher Institution of Engineering and Technology (IET)
Peer Reviewed Peer Reviewed
Volume 7
Issue 3
Institution Citation Connor, P. H., Pickering, S., Gerada, C., Eastwick, C., Micallef, C., & Tighe, C. (2013). Computational fluid dynamics modelling of an entire synchronous generator for improved thermal management. IET Electric Power Applications, 7(3), doi:10.1049/iet-epa.2012.0278
DOI https://doi.org/10.1049/iet-epa.2012.0278
Keywords Generator, Airflow, Thermal, CFD, Efficiency
Publisher URL http://digital-library.theiet.org/content/journals/10.1049/iet-epa.2012.0278
Related Public URLs http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6520364
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information This paper is a postprint of a paper submitted to and accepted for publication in IET Electric Power Applications and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.

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