Flow Behavior and Performance Characteristics of Constant Air Volume Fan According to Different Hub Shape

Title
Flow Behavior and Performance Characteristics of Constant Air Volume Fan According to Different Hub Shape
Authors
이호호최항철정재구이윤표신유환정진택
Keywords
Constant air volume flow fan; Flow behavior; Hub shape; Performance test; Numerical analysis; Efficiency
Issue Date
2012-04
Publisher
유체기계저널
Citation
VOL 15, NO 2, 57-62
Abstract
The constant air volume flow fan can maintain constant flow rate to the wide range of exit pressure. Therefore, the use of this fan is increasing recently for ventilation of high building. Brushless DC motor is adopted to this fan because that has advantages of compactness and performance. But this type of motor protrude from impeller hub side to fan inlet. The Impeller inlet flow is influenced by size of this obstacle called hub. In this paper, the influence of hub shape on the fan performance characteristics are experimentally and numerically analyzed. CFX 12.0 is used to perform the fan internal flow analysis and numerical results are compared with the experiments. Depending on hub shape, internal loss is generated and the performance and efficiency are reduced. The best performance is occurred around h/b1 = 0.25. The results of this study will be contribute to initial design of constant air volume flow fan development.
URI
http://pubs.kist.re.kr/handle/201004/42855
ISSN
12269883
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE