By Topic

Analysis and visualisation of flow around blades of axial fans for large capacity open-type motors

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Nakahama, T. ; Toshiba Corp., Tokyo, Japan ; Ishibashi, F.

A study of the airflow around blades of axial fans for large capacity open type motors is presented. In these motors, air for cooling is blown onto stator windings and rotor bars by means of axial fans placed beside the laminated iron core. The paths from the intake opening to the axial fans and from the laminate iron core to the exhaust opening twist tightly in order to reduce noise. The ventilation resistance of axial fans for motors is much greater than that of common fans for creating draughts. The operating flow rate is much less than for fans without ventilation resistance. Numerical flow analysis was performed on the flow around the blade at this operating point. It was confirmed that there was a large flow segregation where air did not flow along surfaces on the negative pressure side of blades. This was also observed in a flow visualisation experiment.

Published in:

Electric Power Applications, IEE Proceedings -  (Volume:151 ,  Issue: 1 )