Performance Evaluation of the Next Generation of Small Vertical Axis Wind Turbine (original) (raw)
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Design and Analysis of Vertical Axis Wind Turbine on Small Scale Energy Production
2019
This research work is conducted for computing the performance of vertical axis wind turbine. Computational Fluid Dynamics (CFD) software is used to analyze the mechanical performance of VAWT. The two bladed and three bladed VAWT performance is calculated by simulating each VAWT by using CFD software. Vertical Axis Wind Turbines (VAWTs), can be installed in the locations where the wind speed is low. The aim is to develop a VAWT with improved turbine performance to harvest electrical energy more economically and sustainably. The spiral design is capable to sweep wind efficiently and it has less negative effect of torque on reversing blade which is the main advantage. The CFD analysis is used to understand the performance of two bladed and three bladed VAWT before fabrication in result efficiency is increased. The efficiency of 24.63% and 24.93% obtained for two bladed and three bladed VAWT.
Design and Fabrication of Vertical Axis Wind Turbine (VAWT)
2016
In this, the Vertical axis wind turbine (VAWT) is designed and fabricated. The plastic composite material blades which have less cost and light weight than carbon fiber and balsa wood are designed and fabricated. This project is used for small scale generation of electricity. Proper aerofoil shape and manufacturing technique gives more lift and further more power generation. The objective of this VAWT is to generate electricity in remote areas with less setup cost.
Development of the Performance Characteristics of a Vertical Axis Wind Turbine
2019
Performance curves aid in energy assessment and performance monitoring of wind turbines and can be used as a guide for turbine applications where a generic comparison between different types can be made before selection. This study design, build and carried out a performance analysis on a lift-type Vertical Axis Wind Turbine (VAWT). It was discovered that the efficiency of the wind turbine increased with tip speed ratios. A maximum tip speed ratio of 1.08 was achieved under limited wind speeds which meant that the rotational speed of the device was the same as the wind velocity. This occurred for a rotor solidity of 0.51. This implied that the wind turbine operated like a drag type design since these have tip speed ratios less than or equal to 1.
2018
Over the last two decades there has been a renewed interest in Vertical Axis Wind Turbines. This turbine configuration though unpopular for large-scale generation has found a niche market in the way of offshore energy harvesting. However, offshore wind has its challenges. In this thesis a detailed comprehensive study of a proposed V-shaped vertical axis turbine rotor is performed in order to examine its structural and aerodynamic characteristics. The design met and exceeded the safety parameters establish for test bed operation, showing a factor of safety of 1.87 with regard to fatigue stress response. A satisfactory fatigue stress design life was also achieved. Both experimental and numerical aerodynamic data have relatively good agreement achieving an overall maximum power coefficient of 0.2589 numerically and 0.251 experimentally. INDEX WORDS: Wind energy, Vertical axis wind turbine, VAWT, V-shaped, Structural, Design, Rotor design, Renewable energy, Darrieus turbine, CFD. STRUCT...
Fabricated of Vertical Axis wind turbine (VAWT) and study the parameter
Tikrit Journal of Pure Science
Due to the lack of electric power in areas away from power transmission lines and high prices of conventional fuel due to high pollution. A vertical system is used which depends on wind energy used to rotate a vertical turbine. The system is manufactured from local materials and tested. and study the number of blades with the other characterization of system we found, increasing the torque with increasing the blade of turbine, and increasing the power coefficient with increasing the tip speed ratio and low bitz limit. http://dx.doi.org/10.25130/tjps.24.2019.135
Design, Analysis and Fabrication of Vertical Axis Wind Turbine
— We know that the world electrical consumption is increasing day by day. Wind and Solar are the two-main renewable source which can help face this electricity crisis. HAWT are efficient but they require high velocity wind and high altitude to work. On the other hand, VAWT can produce electricity at lower altitude. As we know, vehicle plays an important role in providing short range high velocity wind flow. This wind flow can be effectively used by placing a VAWT on the median of the road and capturing wind energy and converting it into rotational energy and then to electrical energy. The aim of this work is to design and develop a new Savonius type vertical axis wind turbine which uses wind flow from vehicle and convert it into electrical energy for small scale energy applications.
DESIGN & DEVELOPMENT OF VERTICAL AXIS WIND TURBINE
Increasing demand for energy in recent years has seen a rise in development of alternative energy sources. Wind being one of the most abundant and easily available sources is an excellent alternative to conventional energy sources.
Review on Aerodynamic Performance Evaluation of Straight Blade Vertical Axis Wind Turbine.pdf
As the energy crisis is getting severe in the world it will be important to investigate alternative methods of generating power in ways different than, fossil fuels. In fact, one of the biggest sources of energy is all around us all of the time, the wind. Currently, horizontal axis wind turbines (HAWT) dominate the wind energy market due to their large size and high power generation characteristics. However, vertical axis wind turbines (VAWT) are capable of producing a lot of power, and offer many advantages for small-scale and domestic applications. One drawback of DARRIEUS type VAWT is their inability to reliably selfstart at low tip speed ratio. The details of different configurations and performance evaluation techniques along with the major findings of researchers on vertical axis wind turbines are reviewed in this paper. The main purpose of the study described here is to investigate effect of different design parameter on performance evaluation of VAWT.
Vertical Axis Wind Turbine: Aerodynamic Modelling and its Testing in Wind Tunnel
Procedia Computer Science, 2016
This paper presents aerodynamic modelling, fabrication and the performance evaluation of vertical axis wind turbine (VAWT). Aerodynamic modelling of VAWT is designed using software tools by considering NACA0012 airfoil whose chord length is 0.12 m. Aluminum material based light weight 3 bladed practical prototype model of VAWT having rotor diameter and rotor height as 0.36 m and 0.40 m respectively is fabricated. This practical prototype model is tested in subsonic wind tunnel to analyze the performance parameters like power in the wind, mechanical power at turbine shaft, tip speed ratio (TSR) and power coefficient. The rotor is tested under different wind speeds ranging from 4.38 m/s to 22.38 m/s, test results shows the reliable and efficient performance.