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Potential of power recovery of a subsonic axial fan in windmilling operation

Courty-Audren, Suk-Kee and Binder, Nicolas and Carbonneau, Xavier and Challas, Florent Potential of power recovery of a subsonic axial fan in windmilling operation. (2013) In: 10th European Turbomachinery Conference, 15-19 Apr 2013, Lappeenranta, Finland .

(Document in English)

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During the last decades, efforts to find efficient green energy solutions have been widely increased in response to environmental concerns. Among all renewable energies, this paper is focused on wind power generation. To this end, a windmilling axial fan in turbine operation is experimentally and numerically investigated. Under specific conditions, the studied fan is naturally freewheeling. Consequently, the main objective of this analysis is to determine whether or not this intrinsic windmilling behavior can be optimized for power generation. A preliminary study of the fan is dedicated to the knowledge of the fan characteristics in normal operating conditions. Then, two windmilling configurations (direct and reverse flow direction) are tested and compared on the basis of the output power. An analysis of the velocity triangle gives the opportunity to evaluate the energy recovery potential of both solutions. Of the two, the reversed configuration showed a higher level of output power than the direct one.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Other partners > SAFRAN (FRANCE)
Laboratory name:
Deposited On:24 May 2013 11:32

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