Selection of Nepalese Timber for Small Wind Turbine Blade Construction

2010 ◽  
Vol 34 (3) ◽  
pp. 263-276 ◽  
Author(s):  
Rakesh Sinha ◽  
Parash Acharya ◽  
Peter Freere ◽  
Ranjan Sharma ◽  
Pramod Ghimire ◽  
...  
2014 ◽  
Vol 612 ◽  
pp. 145-150 ◽  
Author(s):  
Lahu P. Maskepatil ◽  
Ashish U. Gandigude ◽  
Sandip A. Kale

Wind energy and solar energy are prominent renewable energy options in the view of growing energy demand. Reliable small wind power produced at compatible price is the need of hour. Cost of the energy generation depends on the cost of the materials used, operating and maintenance cost, cost of the fuel. The material cost directly relates to the cost of the energy. Blade design plays significant role in any wind turbine design. In order to have long expected life of blade material selection is a crucial stage in blade design. Wood, Glass fiber, carbon fiber, natural fiber, sandwich composite materials are different material available for small wind turbine blades. Strength, durability, density, cost, and availability are the important properties to be considered during material selection of blade. The selection of material for wind turbine blade is an important stage in blade design. This paper presents a simple Analytic Hierarchy Process for material selection for the small wind turbine blade. AHP is one of the simplest and cost effective decision making method. In this work AHP is successfully applied for material selection for small wind turbine blade.


2011 ◽  
Vol 295-297 ◽  
pp. 46-50 ◽  
Author(s):  
Zhi Yun Wu ◽  
Le Tie

With the consumption of fossil fuels and their serious impact on the environment, countries in the world are looking to the development of wind resources and the selection of material and the molding process in wind turbine blade have also put higher requirements. Multi-axial warp knitted fabrics become the good carrier of wind turbine blade with its structural diversity, comprehensive performance, good formability and permeability, etc.


2013 ◽  
Author(s):  
E. E. Supeni ◽  
J. A. Epaarachchi ◽  
M. M. Islam ◽  
K. T. Lau

2021 ◽  
Author(s):  
Sayem Zafar

The objective of the project was to design a small wind turbine blade which is aerodynamically efficient and easy to manufacture. Preliminary aerodynamic analysis concluded NACA 63-425 to be the most efficient airfoil. Blade geometry was determined after calculating baseline geometric values for low drag which was then used to calculate power. Blade's structural integrity was studied using ANSYS® software. Tested results yielded that a single layer of E-fibreglass-epoxy is good enough to sustain the prescribed loads. The results were used to calculate the total weight of the blade which was then used to determine the start-up speed. Overall the project was successful in designing a wind turbine blade that produced 450 [W] of electrical power at 4[m/s] wind speed with the start-up speed of around 2[m/d]. The project fulfilled its objective which was to design a more effective wind turbine blade with manufacturability in mind.


2016 ◽  
Vol 2 (1) ◽  
pp. 42-44 ◽  
Author(s):  
B Bakri ◽  
◽  
S Chandrabakty ◽  
R Alfriansyah, ◽  
A Dahyar

This article predominantly focuses on the performance estimation of a small wind turbine blade when a dimple arrangement is made along its upper surface. The dimple arrangement is grooved at two locations: 0.25c and 0.5c, where c is the chord length of the turbine blade. A CFD analysis using the k-ε turbulence model is carried out on the selected blade sections NREL S823 and S822. The continuity and momentum equations are solved using ANSYS Fluent Solver to assess the aerodynamic performance of the proposed design. The effect of introducing a dimple on the blade surface has shown to delay the flow separation, with the formation of vortices. Further, the overall performance of the blade is simulated using GH BLADED and the results acquired are discussed.


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