Book ChapterDOI
Robust Design of Savonius Wind Turbine
Vishaal Dhamotharan,Ranjana Meena,Piyush D. Jadhav,Palaniappan Ramu,K. Arul Prakash +4 more
- pp 913-923
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TLDR
The primary aim of this work is to provide a simple methodology for the robust optimal design of the Savonius wind turbine using the traditional Taguchi method and dynamic computational fluid dynamics models of the design sets.Abstract:
The Savonius wind turbine, a class of vertical axis wind turbine (VAWT), is simple and provides a better cost-benefit ratio. It works on the principle of differential drag and is effective in rooftop and ground mounting. Despite the advantages of Savonius wind rotors, they are not preferred due to their low aerodynamic performance levels. In order to address this, several experimental and numerical studies have been carried out in recent years. The primary aim of this work is to provide a simple methodology for the robust optimal design of the Savonius wind turbine. In the parameter design stage, the performance of the turbine is maximized using the traditional Taguchi method. An L27 orthogonal array is used considering five factors of three levels each, which affect C p . Wind speed is considered to be the noise factor. Signal-noise ratio (SNR) metric is used to find the optimal settings for robust design. The aerodynamic performance of the turbine is investigated through dynamic computational fluid dynamics (CFD) models of the design sets. The numerical models used for the simulations are also discussed.read more
Citations
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Journal ArticleDOI
Experimental study of the effect of slotted blades on the Savonius wind turbine performance
Dominicus Danardono Dwi Prija Tjahjana,Zainal Arifin,Suyitno Suyitno,Wibawa Endra Juwana,Aditya Rio Prabowo,Catur Harsito +5 more
TL;DR: In this paper, the effect of Reynolds number on the performance of a wind turbine with slotted blades was investigated based on the torque coefficient, power coefficient, and tip speed ratio (TSR).
Journal ArticleDOI
Optimal design of savonius wind turbines using ensemble of surrogates and CFD analysis
TL;DR: Novelty of the current work is the use of WAS, an ensemble of surrogates that consists of polynomial response surface, kriging and radial basis functions, which performs better compared to any surrogate individually thus avoiding misleading optima and eliminates surrogate dependent optima.
Journal ArticleDOI
Dynamic Analysis of the Optimized Savonius Vertical Axis Wind Turbine Composite Blades
TL;DR: In this paper, the authors presented a comprehensive study of the dynamic behavior of small vertical-axis wind turbines (VAWTs) based on local fabricated Savonius VAWTs, which is suitable for countries that have a moderate wind speed.
Journal ArticleDOI
Modeling and Optimization for the Dynamic Performance of Vertical-Axis Wind Turbine Composite Blades
TL;DR: In this paper, a study of modeling and optimization for the dynamic performance of wind turbine composite material blades and the effects of composite material stacking sequence in addition to some design parameters such as twist angle (α) and aspect ratio (AR) on the whole wind turbine performance is presented.
References
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Journal ArticleDOI
Experimental investigations on single stage modified Savonius rotor
TL;DR: In this article, the effect of geometrical parameters on the performance of the rotors in terms of coefficient of static torque, coefficient of torque and coefficient of power was investigated in an open jet wind tunnel.
Journal ArticleDOI
Performance tests on helical Savonius rotors
TL;DR: In this paper, a helical Savonius rotor with a twist of 90° was proposed to decrease the variation in static torque from 0° to 360°, and the performance of the helical rotor with and without shaft was compared in an open jet wind tunnel.
Journal ArticleDOI
On the torque mechanism of Savonius rotors
TL;DR: In this article, the aerodynamic performance and 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.
Journal ArticleDOI
An experimental and numerical study on the improvement of the performance of Savonius wind rotor
Burçin Deda Altan,Mehmet Atılgan +1 more
TL;DR: In this article, a curtain has been designed to increase low performance of the Savonius wind rotor, a type of vertical-axis wind rotor and the effect of this curtain on the static rotor performance has been analyzed both experimentally and numerically.