Results 121 to 130 of about 146,089 (155)

On the torque mechanism of Savonius rotors

Journal of Wind Engineering and Industrial Aerodynamics, 1992
Abstract The aerodynamic performance and the flow fields of Savonius rotors at various overlap ratios have been investigated by measuring the pressure distributions on the blades and by visualizing the flow fields in and around the rotors with and without rotation. Experiments have been performed on four rotors having two semicircular blades but with
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Performance tests on helical Savonius rotors

Renewable Energy, 2009
Conventional Savonius rotors have high coefficient of static torque at certain rotor angles and a negative coefficient of static torque from 135° to 165° and from 315° to 345° in one cycle of 360°. In order to decrease this variation in static torque from 0° to 360°, a helical Savonius rotor with a twist of 90° is proposed.
KAMOJI, MA, KEDARE, SB, PRABHU, SV
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Aerodynamics Of The Savonius Rotor: Experiments And Analysis

Proceedings of the 25th Intersociety Energy Conversion Engineering Conference, 2005
An approach to the design of the Savonius rotor based wind energy operated irrigation system is described with appropriate references cited for further details. In the beginning, results of the extensive wind tunnel test program are presented which assess parametric influence and arrive at an optimum con figuration.
V.J. Modi, M.S.U.K. Fernando, N.J. Roth
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Dynamics of a Wheeled Cart Driven by a Savonius Rotor

Mekhatronika, Avtomatizatsiya, Upravlenie, 2021
Savonius rotor is one of relatively wide-spread type of wind turbines. The rotation rate of this rotor is considerably lower than that of horizontal axis wind turbines and Darrieus wind turbines. However, it starts rotating at small wind speeds, doesn’t require any additional devices to ensure its re-orientation in case of change of the wind direction,
A. P. Holub, A. F. Zubkov, A. A. Masterova, Y. D. Selyutskiy   +3 more
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On the aerodynamic design of the savonius windmill rotor

Journal of Wind Engineering and Industrial Aerodynamics, 1985
Abstract This paper examines the performance characteristics of the Savonius windmill rotor under field conditions. Test data were collected on the speed, torque and power of the rotor at a large number of wind speeds for each of seven values of the rotor overlap ratio.
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Valve-Aided Twisted Savonius Rotor

Wind Engineering, 2006
Accessories, such as end plates, deflecting plates, shielding and guide vanes, may increase the power of a Savonius rotor, but make the system structurally complex. In such cases, the rotor can develop a relatively large torque at small rotational speeds and is cheap to build, however it harnesses only a small fraction of the incident wind energy ...
M. Jaya Rajkumar, U. K. Saha
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Wind tunnel tests on a savonius rotor

Journal of Wind Engineering and Industrial Aerodynamics, 1978
Abstract Tests have been made in a wind tunnel on a number of Savonius rotor configurations in wind speeds of 6–9 m/s. The variables tested were blade aspect ratio, blade overlap and gap and the effects of adding end extensions, end plates and shielding.
A.J. Alexander, B.P. Holownia
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Slatted-blade Savonius wind-rotors

Applied Energy, 1991
Abstract The Savonius rotor can develop a relatively high torque at low rotational speeds and is cheap to build, but it harnesses only a small fraction of the wind energy incident upon it. One initially attractive proposal for augmenting its harnessing effectiveness, was to fit an array of hinged flaps in place of the curved parts of the turbine's ...
P. Reupke, S.D. Probert
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Application of Savonius Rotor for Hydrokinetic Power Generation

Journal of Energy Resources Technology, 2019
AbstractTechnological advancement is specifically identified by the usage of energy. The energy requirement is increasing because of the exponential population rise, increased industrial activities, and subsequent accelerated economic activities in both urban and suburban areas.
Oying Doso, Sarsing Gao
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POWER GENERATING CHARACTERISTICS OF SAVONIUS ROTORS

1966
Abstract : An experimental study of the power generating characteristics of Savonius rotors towed through still water was made. Variations in rotor geometry were investigated. Power absorption, drag and side force were measured on six rotors tested in the towing tank over a range of ratios of rotor vane tip peripheral speed divided by rotor advance ...
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