Topic
Savonius wind turbine
About: Savonius wind turbine is a research topic. Over the lifetime, 333 publications have been published within this topic receiving 6521 citations.
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Journal Article•
TL;DR: In this paper, the main objective of the project is to design and develop a small scale wind turbine to serve as an effective means of generating electricity in remote locations, which is one of the kinds of vertical axis wind turbine in which we have made some design alterations to develop Aeroblade Savonius wind turbine.
Abstract: Wind turbines are becoming popular in the renewable energy world. Development in the wind turbines are being made to make it more reliable and effective but the problem is with the transmission of power from the generating plant to the remote (off-grid) locations. Many developing countries have very limited power distribution to rural locations, and small wind turbines have proven to be an effective means of bringing electricity to many people and villages in remote locations. From here we define the main objective of the project is to design and develop a small scale wind turbine to serve as an effective means of generating electricity in remote locations. Savonius wind turbine is one of the kinds of vertical axis wind turbine in which we have made some design alterations to develop Aeroblade Savonius wind turbine. Aesthetic, economic and functional requirements are incorporated into it in order to make it a part of the sustainable consumer products. Other than the rural areas, installation of this turbine in schools, parks, offices and anywhere required will considerably reduce the electricity bill. This turbine is designed as an aid to the energy consumption of the product in which it is incorporated, maintaining the advantages of a conventional Savonius rotor as selfstarting, easy manufacture and maintenance and able to integrate into its environment.
Journal Article•
01 Nov 2020
TL;DR: In this paper, the starting characteristics of a wind turbine were analyzed and the force required to stop the turbine was modeled based on friction in relation to the bearing. And the simulation results tend to qualitatively agree with the experimental results for steadily rotating wind turbines in terms of two aspects: (1) the optimal shape has an 20% overlap of the turbine radius, and (2) the larger the gap, the lower the efficiency.
Abstract: There are many types of wind turbine. Large propeller-type wind turbines are used mainly for large wind farms and offshore wind power generation. Small vertical-axis wind turbines (VAWTs) are often used in distributed energy systems. In previous studies on wind turbines, the basic characteristics such as torque coefficient have often been obtained during rotation, with the turbine rotating at a constant speed. Such studies are necessary for the proper design of wind turbines. However, it is also necessary to conduct research under conditions in which the wind direction and wind speed change over time. Numerical simulation of the starting characteristics is carried out in this study. Based on the flow field around the wind turbine, the force required to rotate the turbine is calculated. The force used to stop the turbine is modeled based on friction in relation to the bearing. Equations for the motion of the turbine are solved by their use as external force. Wind turbine operation from the stationary state to the start of rotation is simulated. Five parameters, namely, blade length, wind turbine radius, overlap, gap, and blade thickness, are changed and the optimum shape is obtained. The simulation results tend to qualitatively agree with the experimental results for steadily rotating wind turbines in terms of two aspects: (1) the optimal shape has an 20% overlap of the turbine radius, and (2) the larger the gap, the lower the efficiency.
TL;DR: In this article, the effects of number of blades and inflow wind speed on vibration signals of a vertical axis Savonius type wind turbine were investigated, and it was found that the increase of the number of rotor blades leads to decrease of the vibration magnitude.
Abstract: Abstract—In recent years, progress has been made in increasing the renewable energy share in the power sector particularly in the wind. The experimental study conducted in this paper aims to investigate the effects of number of blades and inflow wind speed on vibration signals of a vertical axis Savonius type wind turbine. The operation of the model of Savonius type wind turbine is conducted to compare two, three and four blades wind turbines to show vibration amplitudes related with wind speed. It is found that the increase of the number of blades leads to decrease of the vibration magnitude. Furthermore, inflow wind speed has reduced effect on the vibration level for higher number of blades.
Patent•
19 Oct 2017
TL;DR: A Savonius wind turbine includes a rotor assembly that rotates about a longitudinal axis The rotor assembly includes at least two curved turbine blades extending parallel to the longitudinal axis.
Abstract: A Savonius wind turbine includes a rotor assembly that rotates about a longitudinal axis The rotor assembly includes at least two curved turbine blades extending parallel to the longitudinal axis and at least two support discs connected to the at least two curved turbine blades At least one of the at least two support discs has at least one relief vent defined therein for allowing air to pass through the at least one support disc The wind turbine may be provided with two rotor assemblies having their curved turbine blades arranged so that the rotor assemblies are driven to rotate in opposing rotational directions