The Mechanical Impact of Aerodynamic Stall on Tunnel Ventilation Fans
Joint Authors
Corsini, Alessandro
Sheard, Anthony G.
Source
International Journal of Rotating Machinery
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-02-21
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
This paper describes work aimed at establishing the ability of a tunnel ventilation fan to operate without risk of mechanical failure in the event of aerodynamic stall.
The research establishes the aerodynamic characteristics of a typical tunnel ventilation fan when operated in both stable and stalled aerodynamic conditions, with and without an anti-stall stabilisation ring, with and without a “nonstalling” blade angle and at full, half, and one quarter design speed.
It also measures the fan’s peak stress, thus facilitating an analysis of the implications of the experimental results for mechanical design methodology.
The paper concludes by presenting three different strategies for tunnel ventilation fan selection in applications where the selected fan will most likely stall.
The first strategy selects a fan with a low-blade angle that is nonstalling.
The second strategy selects a fan with a high-pressure developing capability.
The third strategy selects a fan with a fitted stabilisation ring.
Tunnel ventilation system designers each have their favoured fan selection strategy.
However, all three strategies can produce system designs within which a tunnel ventilation fan performs reliably in-service.
The paper considers the advantages and disadvantages of each selection strategy and considered the strengths and weaknesses of each.
American Psychological Association (APA)
Sheard, Anthony G.& Corsini, Alessandro. 2012. The Mechanical Impact of Aerodynamic Stall on Tunnel Ventilation Fans. International Journal of Rotating Machinery،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-469235
Modern Language Association (MLA)
Sheard, Anthony G.& Corsini, Alessandro. The Mechanical Impact of Aerodynamic Stall on Tunnel Ventilation Fans. International Journal of Rotating Machinery No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-469235
American Medical Association (AMA)
Sheard, Anthony G.& Corsini, Alessandro. The Mechanical Impact of Aerodynamic Stall on Tunnel Ventilation Fans. International Journal of Rotating Machinery. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-469235
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-469235