Archimedes Spiral Wind Turbine performance study using different aerofoiled blade profiles: Experimental and numerical analyses
2023
Kamal, Ahmed M. | Nawar, Mohamed A.A. | Attai, Youssef A. | Mohamed, Mohamed H.
Wind power is one of the most quickly expanding forms of clean energy. A novel horizontal axis wind turbine type, the Archimedes Spiral Wind Turbine (ASWT), is built for residential applications. The influence of the rotor pitch to diameter ratio (2s/D) and the aerofoil blade profile on the productivity of ASWT is investigated using experimentation and computer simulation. To fulfill the validation of the experimental work, the ANSYS Fluent solver provides the numerical solution. The tests are performed on a modified ASWT with a nominal blade thickness and blade angles of α₁ = 25°, α₂ = 50°, and α₃ = 60° for the first, middle, and third blades. Wind speeds of 8 and 10 m/s were used. The NACA4401 ASWT with (2s/D) = 0.30 is the best-studied design. At a wind speed of 10 m/s, the maximum CP of the conventional, modified, and aerofoiled ASWTs is 0.243, 0.286, and 0.3045, respectively, at tip speed ratios (λ) of 1.5, 2, and 2. Compared to the conventional and modified ASWT, the aerofoiled ASWT exhibits a 26.88% and 6.47% improvement in the peak CP.
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