2020
DOI: 10.13044/j.sdewes.d7.0292
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Numerical Investigation of Inner Blade Effects on the Conventional Savonius Rotor with External Overlap

Abstract: The Savonius wind turbine is considered as one of the best vertical axis wind turbines for harvesting the kinetic energy from the wind in the urban areas, due to magnificent features such as high starting torque, low construction and maintenance costs, simple design, and self-starting ability especially at low wind speed. However, the conventional style of the Savonius rotor suffers from low efficiency. Consequently, modifying the configuration of the rotor may be an appropriate solution for providing electric… Show more

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Cited by 11 publications
(12 citation statements)
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“…The coefficient of performance is the nondimensional ratio of the mechanical power of the rotor to the power carried by the wind passing through the rotor swept area. The C P is calculated as explained by Jang et al 33 C P ¼ P mech 0:5ρAV 3 (1)…”
Section: Geometry and Performance Parametersmentioning
confidence: 99%
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“…The coefficient of performance is the nondimensional ratio of the mechanical power of the rotor to the power carried by the wind passing through the rotor swept area. The C P is calculated as explained by Jang et al 33 C P ¼ P mech 0:5ρAV 3 (1)…”
Section: Geometry and Performance Parametersmentioning
confidence: 99%
“…2 The VAWT is classified into two types based on the force of operation; the Darrius rotor is propelled by lift force, whereas the Savonius rotor is propelled by drag and lift. 3 The first Savonius wind turbine, developed by Sirgud Savonius, had a simple configuration of two semi-circular blades as shown in Figure 1. The Savonius wind turbine (SWT) is known for its low coefficient of power (C P ), which researchers have attempted to improve through computational and experimental studies.…”
Section: Introductionmentioning
confidence: 99%
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“…Wind turbines family could be classified into two main sections based on the orientation of the shaft, i.e. the horizontal axis wind turbine (HAWT) where the rotational axis is in the same direction of the flow, and the vertical axis wind turbine (VAWT) in which the wind direction is perpendicular to the axis of rotation 8,9) . HAWT is the most efficient kind of wind turbine due to its great aerodynamics 10,11) .…”
Section: Introductionmentioning
confidence: 99%