Experimental study on interaction of the counter-rotating rotors in a wind turbine

Author

Zhiqiang, Li ; Wang Yong ; Yusheng, Zhang

Author_Institution

Nat. Key Lab. of Sci. & Technol. on Aero-Engine Aero-Thermodynamics, Beijing Univ. of Aeronaut. & Astronaut., Beijing, China

Volume

1

fYear

2011

fDate

20-22 May 2011

Firstpage

570

Lastpage

574

Abstract

A experimental study was conducted to examine the feasibility and aerodynamic performance of a counter-rotating rotor system for a small horizontal axis wind turbine (CRWT) in a wind tunnel, and the study aim is to test the effect of the upstream rotor on the downstream rotor for power extraction. Initial experimental results indicated greater power extraction and performance from the counter-rotating configurations than that of the single rotor design. The rotation of upstream rotor has important influence on the power output of the downstream rotor, however, the rotation of downstream rotor has almost no effect on the power output of the upstream rotor.

Keywords

aerodynamics; rotors; wind tunnels; wind turbines; CRWT; aerodynamic performance; counter-rotating rotor; downstream rotor; horizontal axis wind turbine; power extraction; rotor design; upstream rotor; wind tunnel; wind turbine; Ammeters; Blades; Educational institutions; Radiation detectors; Rotors; counter-rotating rotor wind turbine; power output; wind energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-61284-749-8

Type

conf

DOI

10.1109/ICMREE.2011.5930877

Filename

5930877