Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Measurement and analysis of three-dimensional flow in a centrifugal fan volute with large volute width and rectangular cross-section

Measurement and analysis of three-dimensional flow in a centrifugal fan volute with large volute... AbstractAmong all the elements of a centrifugal fan, the volute is the one that has the lowest flow efficiency. Therefore, improving the performance of the volute is an efficient way to improve the total performance of a centrifugal fan. To contribute a better understanding of the flow structure in the fan volute, the three-dimensional flow in a centrifugal fan volute with a large volute width and rectangular cross-section has been measured in detail by means of five-hole probe at three different flowrates. The time-average swirling and throughflow velocity, static and total pressure distributions on eight cross-sections in the throughflow direction of the volute are presented. The results show the formation and development of the flow in the fan volute of this type, indicate the variation of flow parameters, and discover some peculiar flow phenomena different from the traditional understanding. On the basis of the experimental results, the main hydraulic losses in this kind of fan volute have been preliminarily classified and analysed. The results show that the traditional one-dimensional design method of the volute should be further improved as it is only based on the law of momentum moment conservation and the ideal assumption that the distribution of flow parameters are uniform at the volute inlet. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy SAGE

Measurement and analysis of three-dimensional flow in a centrifugal fan volute with large volute width and rectangular cross-section

Download PDF
21 pages

Loading next page...
 
/lp/sage/measurement-and-analysis-of-three-dimensional-flow-in-a-centrifugal-ncm4HVT0jc

References (15)

Publisher
SAGE
Copyright
© 2006 Institution of Mechanical Engineers
ISSN
0957-6509
eISSN
2041-2967
DOI
10.1243/095765006X76036
Publisher site
See Article on Publisher Site

Abstract

AbstractAmong all the elements of a centrifugal fan, the volute is the one that has the lowest flow efficiency. Therefore, improving the performance of the volute is an efficient way to improve the total performance of a centrifugal fan. To contribute a better understanding of the flow structure in the fan volute, the three-dimensional flow in a centrifugal fan volute with a large volute width and rectangular cross-section has been measured in detail by means of five-hole probe at three different flowrates. The time-average swirling and throughflow velocity, static and total pressure distributions on eight cross-sections in the throughflow direction of the volute are presented. The results show the formation and development of the flow in the fan volute of this type, indicate the variation of flow parameters, and discover some peculiar flow phenomena different from the traditional understanding. On the basis of the experimental results, the main hydraulic losses in this kind of fan volute have been preliminarily classified and analysed. The results show that the traditional one-dimensional design method of the volute should be further improved as it is only based on the law of momentum moment conservation and the ideal assumption that the distribution of flow parameters are uniform at the volute inlet.

Journal

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy – SAGE

Published: Mar 1, 2006

There are no references for this article.