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A Parametric Study of Reversible Jet-Fan Blades’ Aero-Mechanical Performance

[+] Author Affiliations
Kasra Daneshkhah, Geoff Sheard

Fläkt Woods Limited, Colchester, Essex, UK

Paper No. GT2012-69920, pp. 787-794; 8 pages
doi:10.1115/GT2012-69920
From:
  • ASME Turbo Expo 2012: Turbine Technical Conference and Exposition
  • Volume 3: Cycle Innovations; Education; Electric Power; Fans and Blowers; Industrial and Cogeneration
  • Copenhagen, Denmark, June 11–15, 2012
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4469-4
  • Copyright © 2012 by ASME

abstract

This paper presents a parametric design of fully reversible jet-fan blades for ventilation and smoke control use in road tunnels. The blade design variables are tip solidity, twist and camber distribution. The authors base the design methodology on a sensitivity analysis which they obtained from a response surface approximation. They construct the latter using high-fidelity computational analysis tools for four experimental cases which they generated using an experimental design approach. The sensitivity analysis calculates a rank and a weight for each design variable that affects the jet-fan performance parameters thrust and efficiency, and thus facilitates insight into each design’s relative performance. Finally, the authors present a redesign of an existing reversible jet-fan blade by following the design guidelines obtained from the sensitivity analysis. The authors study and discuss the aerodynamic and structural characteristics of the redesigned blade and compared it to that of the baseline design configuration.

Copyright © 2012 by ASME
Topics: Blades

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