NDLI: Conjugate heat transfer analysis of a salient pole rotor in an air cooled synchronous generator

Content Provider	IEEE Xplore Digital Library
Author	Shanel, M. Pickering, S.J. Lampard, D.
Copyright Year	2003
Description	Author affiliation: Sch. of Mech., Mater., Manuf. Eng. & Manage., Nottingham Univ., UK (Shanel, M.; Pickering, S.J.; Lampard, D.)
Abstract	A study of combined heat transfer by conduction and convection for the rotor of an air-cooled, 4-pole generator was carried out using a general purpose CFD code. A simplified generator design was used to demonstrate a technique to analyse temperature distribution through the salient pole rotor at the design stage. Whilst CFD has the capability to predict airflow and convective heat transfer, it is shown that it is also necessary to model heat conduction, including the heat input from the losses, to produce a realistic thermal model of the rotor. A strip-on-edge coil structure is considered and it is shown that modelling the coils as homogeneous materials with anisotropic thermal conductivity provides sufficient accuracy for the prediction of local coil temperatures. Consideration is given to the effect of the coil size and structure on the cooling. To demonstrate the capability of the method, a modification to the test model considered is presented in which the airflow is modified, leading to enhanced heat convection and field coil temperature reduction.
Sponsorship	IEEE Power Eng., Power Electon., Ind. Electron. & Ind. Appl. Soc.
Starting Page	737
Ending Page	741
File Size	593775
Page Count	5
File Format	PDF
ISBN	0780378172
DOI	10.1109/IEMDC.2003.1210318
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-06-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heat transfer Rotors Synchronous generators Coils Predictive models Thermal conductivity Computational fluid dynamics Temperature distribution Conducting materials Anisotropic magnetoresistance
Content Type	Text
Resource Type	Article

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