DocumentCode :
2639199
Title :
CFD modelling of an entire synchronous generator for improved thermal management
Author :
Connor, P.H. ; Pickering, S.J. ; Gerada, C. ; Eastwick, C.N. ; Micallef, C.
Author_Institution :
Div. of Energy & Sustainability, Univ. of Nottingham, Nottingham, UK
fYear :
2012
fDate :
27-29 March 2012
Firstpage :
1
Lastpage :
6
Abstract :
This paper is the first in a series dedicated to investigating the airflow and thermal management of electrical machines. Due 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 paper 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 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 torque were under predicted by 4% and 30% respectively by the CFD. A break-down of torque by component shows that the fan consumes approximately 87% of the windage torque.
Keywords :
computational fluid dynamics; cooling; machine windings; synchronous generators; thermal analysis; airflow management; cooling; electrical machines; full CFD model; improved thermal management; losses direct reduction; machine windings; mass flow rate; synchronous generator; temperature dependent resistive losses; thermal behaviour; torque breakdown; windage power; windage torque; Airflow; CFD; Efficiency; Generator; Thermal;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Power Electronics, Machines and Drives (PEMD 2012), 6th IET International Conference on
Conference_Location :
Bristol
Electronic_ISBN :
978-1-84919-616-1
Type :
conf
DOI :
10.1049/cp.2012.0290
Filename :
6242142
Link To Document :
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