Summary of Savonius wind turbine development and future applications for small-scale power generation

2012 ◽  
Vol 4 (4) ◽  
pp. 042703 ◽  
Author(s):  
J. P. Abraham ◽  
B. D. Plourde ◽  
G. S. Mowry ◽  
W. J. Minkowycz ◽  
E. M. Sparrow
Keyword(s):  
Power Generation ◽  
Wind Turbine ◽  
Small Scale ◽  
Savonius Wind Turbine

scholarly journals Power Generation Through Small-scale Wind Turbine

2020 ◽  
Author(s):  
Bala Maheswaran ◽  
Alya Abd Aziz ◽  
Evan Alexander ◽  
Laura Brigandi ◽  
Cole Branagan
Keyword(s):  
Power Generation ◽  
Wind Turbine ◽  
Small Scale

scholarly journals PREDICTION OF POWER GENERATION OF SMALL SCALE VERTICAL AXIS WIND TURBINE USING FUZZY LOGIC

2009 ◽  
Vol 3 (2) ◽  
pp. 43-51 ◽  
Author(s):  
Altab Hossain ◽  
Ataur Rahman ◽  
Mozasser Rahman ◽  
SK Hasan ◽  
Jakir Hossen
Keyword(s):  
Power Generation ◽  
Fuzzy Logic ◽  
Wind Turbine ◽  
Vertical Axis ◽  
Small Scale ◽  
Vertical Axis Wind Turbine

Mini Wind Turbine for Small Scale Power Generation and Storage (Archimedes Wind Turbine Model)

2018 ◽  
Author(s):  
Michael Ozeh ◽  
Ashreet Mishra ◽  
Xiuling Wang
Keyword(s):  
Power Generation ◽  
Wind Turbine ◽  
Urban Areas ◽  
Production Efficiency ◽  
Real Life ◽  
Power Production ◽  
Speed Ratio ◽  
Small Scale ◽  
Blade Design ◽  
Production Potential

The Archimedes wind turbine boasts an innovative blade design with the potential of harvesting energy from wind with much more efficiency. The blade design utilizes both lift and drag forces, and boasts several other advantages over conventional horizontal axis and vertical axis wind turbines, which implies higher power production efficiency and a possibility of being used in urban areas with attendant low wind speed regimes for small scale power generation, being more portable. However, there exists a dearth of experimental reports on the Archimedes wind turbine besides CFD simulations, to observe and study its real-life performance and power production potential. This paper is an experimental report on the design and wind test of the Archimedes wind turbine prototype, together with calculations made to gauge its tip speed ratio, power output and energy production potential. To show the viability of the prototype, the power produced is used to charge a HTC Desire cell phone, which proves that it can be relied upon to meet the title objective of small scale power storage with a power bank. Results are thereafter compared to other published work and show relatively good agreement. Minor deviations are attributed to the challenges encountered during the fabrication process.

scholarly journals Investigations on the Effect of Radius Rotor in Combined Darrieus-Savonius Wind Turbine

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Kaprawi Sahim ◽  
Dyos Santoso ◽  
Dewi Puspitasari
Keyword(s):  
Wind Turbine ◽  
Wind Tunnel Test ◽  
Vertical Axis ◽  
Radius Ratio ◽  
Small Scale ◽  
Wind Speeds ◽  
Vertical Axis Wind Turbines ◽  
Savonius Wind Turbine ◽  
Darrieus Rotor ◽  
Low Wind Speeds

Renewable sources of energy, abundant in availability, are needed to be exploited with adaptable technology. For wind energy, the wind turbine is very well adapted to generate electricity. Among the different typologies, small scale Vertical Axis Wind Turbines (VAWT) present the greatest potential for off-grid power generation at low wind speeds. The combined Darrieus-Savonius wind turbine is intended to enhance the performance of the Darrieus rotor in low speed. In combined turbine, the Savonius buckets are always attached at the rotor shaft and the Darrieus blades are installed far from the shaft which have arm attaching to the shaft. A simple combined turbine offers two rotors on the same shaft. The combined turbine that consists of two Darrieus and Savonius blades was tested in wind tunnel test section with constant wind velocity and its performance was assessed in terms of power and torque coefficients. The study gives the effect of the radius ratio between Savonius and Darrieus rotor on the performance of the turbine. The results show that there is a significant influence on the turbine performance if the radius ratio was changed.

Optimization of Looped Airfoil Wind Turbine (LAWT™) Design Parameters for Maximum Power Generation

2016 ◽  
Author(s):  
Binhe Song ◽  
Subhodeep Banerjee ◽  
George Syrovy ◽  
Ramesh K. Agarwal
Keyword(s):  
Power Generation ◽  
Wind Turbine ◽  
Rural Areas ◽  
Analytical Formula ◽  
Maximum Power ◽  
Total Power ◽  
Design Parameters ◽  
Small Scale ◽  
Drag Coefficients ◽  
Lift And Drag

The looped airfoil wind turbine (LAWT™) is a patented new technology by EverLift Wind Tecnology, Inc. for generating power from wind. It takes advantage of the superior lift force of a linearly traveling wing compared to the rotating blades in conventional wind turbine configurations. Compared to horizontal and vertical axis wind turbines, the LAWT™ can be manufactured with minimal cost because it does not require complex gear systems and its blades have a constant profile along their length [1]. These considerations make the LAWT™ economically attractive for small-scale and decentralized power generation in rural areas. Each LAWT™ is estimated to generate power in the range of 10 kW to 1 MW. Due to various advantages, it is meaningful to determine the maximum power generation of a LAWT™ by optimizing the structural layout. In this study, CFD simulations were conducted using ANSYS Fluent to determine the total lift and drag coefficient for a cascade of airfoils. The k-kl-ω turbulence model was used to account for flow in the laminar-turbulent transition region. Given the lift and drag coefficients and the kinematics of the system, an analytical formula for the power generation of the LAWT™ was developed. General formulas were obtained for the average lift and drag coefficients so that the total power could be predicted for any number of airfoils in LAWT™. The spacing between airfoils was identified as the key design parameter that affected the power generation of the LAWT™. The results show that a marked increase in total power can be achieved if the optimum spacing between the airfoils is used.

scholarly journals Small Scale Vertical Axis Wind Turbine

2021 ◽  
Author(s):  
Sahishnukumar Shah
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Wind Turbine ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Electrical Power ◽  
Vertical Axis ◽  
Energy Sources ◽  
Small Scale ◽  
Vertical Axis Wind Turbine

The small-scale vertical axis wind turbine is designed and modeled in this project, considering all aspects of wind turbine such as Blade design, stator design, rotor design and converter system design. Electric Power has become a prime necessity for any country for economic development. The conventional fuel sources for power generation are depleting fast. The favorable alternatives are renewable energy sources. Although more invention has to be carried out in the field of renewable energy sources, every little effort in this direction may provide a solution to reach most economical power generation point. Hence the same topic was selected for Masters Project. The goal of this project is to design a small scale Vertical Axis Wind Turbine, which is capable of producing electrical power even with low wind velocity. It can be placed on road dividers, sidetracks of train or remote places i.e. villages, military camps, where it is not economical to transmit power from power plants. Implementation of such project would reduce the dependence of an industry or remote houses, on electricity board.

Experimental and Numerical Investigations on Drag and Torque Characteristics of Three-Bladed Savonius Wind Turbine

2009 ◽  
Author(s):  
Mosfequr Rahman ◽  
Khandakar N. Morshed ◽  
Jeffery Lewis ◽  
Mark Fuller
Keyword(s):  
Wind Turbine ◽  
Wind Turbines ◽  
Vertical Axis ◽  
The United States ◽  
Small Scale ◽  
Horizontal Axis Wind Turbine ◽  
Drag Coefficients ◽  
Vertical Axis Wind Turbines ◽  
Torque Coefficient ◽  
Savonius Wind Turbine

With the growing demand of energy worldwide, conventional energy is becoming more and more scarce and expensive. The United States is already facing an energy crunch as the fuel price soars. Therefore, there is an obvious need for alternative sources of energy—perhaps more than ever. Wind is among the most popular and fastest-growing forms of electricity generation in the world, which is pollution free and available almost at any time of the day, especially in the coastal regions. The main attraction of the vertical-axis wind turbine is its manufacturing simplicity compared to that of the horizontal-axis wind turbine. Among all different vertical axis wind turbines, Savonius wind turbine is the simplest one. Operation of the Savonius wind turbine is based on the difference of the drag force on its semi-spherical blades, depending on whether the wind is striking the convex or the concave part of the blades. The advantage of this type of wind turbine is its good self-starting and wind directional independence characteristic. It, however, has a relatively lower efficiency in comparison with the lift type vertical-axis wind turbines. Due to its simple design and low construction cost, Savonius rotors are primarily used for water pumping and wind power on a small scale. The main objective of this ongoing research work is to improve the aerodynamic performance of vertical axis Savonius wind turbine. Wind tunnel investigation has been performed on aerodynamic characteristics, such as drag coefficients, and static torque coefficient of three-bladed Savonius rotor model. Also the computational fluid dynamics (CFD) simulation has been performed using FLUENT software to analyze the static rotor aerodynamics such as drag coefficients and torque coefficient, and these results are compared with the corresponding experimental results for verification.

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