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Development of indoor testing facilities for low wind speed with turbine research activities

An indoor testing facility for low wind speed wind turbine (LWSWT) research activities had been designed, fabricated and tested in the Aeronautical and Automotive Engineering Department, Universiti Teknologi Malaysia. This indoor testing facility is meant to be used for obtaining some important aerodynamic characteristics of the LWSWT rotor prototype such as the power coefficient, C P and the torque coefficient, C Q at different tip speed ratio (TSR). The “wind” generated by this indoor testing facility was measured and found to be in the specified range of 2 to 3 m/s. A 3-meter AE2 LWSWT rotor prototype had been tested in this indoor testing facility to study its starting behavior. The results obtained were in good agreement with the designed values obtained by using blade element theory. Thus, these results proved that not only the prototype has been successfully designed and fabricated but also proved that the indoor testing facility had been successfully developed. The development of this indoor testing facility is being described in detailed in this paper.