Title :
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
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;
Conference_Titel :
Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-749-8
DOI :
10.1109/ICMREE.2011.5930877
