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Wind and Structures Volume 35, Number 3, September 2022 , pages 147-155 DOI: https://doi.org/10.12989/was.2022.35.3.147 |
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Wind-lens turbine design for low wind speed |
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Mohamed M. Takeyeldein, I.S. Ishak and Tholudin M. Lazim
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| Abstract | ||
| This research proposes a wind-lens turbine design that can startup and operate at a low wind speed (< 5m/s). The performance of the wind-lens turbine was investigated using CFD and wind tunnel testing. The wind-lens turbine consists of a 3- bladed horizontal axis wind turbine with a diameter of 0.6m and a diffuser-shaped shroud that uses the suction side of the thin airfoil SD2030 as a cross-section profile. The performance of the 3-bladed wind-lens turbine was then compared to the twobladed rotor configuration while keeping the blade geometry the same. The 3-bladed wind-lens turbine successfully startup at 1m/s and produced a torque of 66% higher than the bare turbine, while the two-bladed wind-lens turbine startup at less than 4m/s and produced a torque of 186 % higher than the two-bladed bare turbine at the design point. Findings testify that adding the wind-lens could improve the bare turbine's performance at low wind speed. | ||
| Key Words | ||
| CFD; shrouded turbines; wind-lens turbine; wind energy; wind tunnel testing; wind turbine aerodynamics | ||
| Address | ||
| Mohamed M. Takeyeldein:Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor Bahru. Malaysia I.S. Ishak:UTM Aerolab, Institute for Vehicle System & Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia Tholudin M. Lazim:Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor Bahru. Malaysia | ||