Modification of Horizontal Wind Turbine Blade: A Finite Element Analysis
Turbines are efficient power generators. Because wind energy is a clean fuel source, it is widely utilized in some regions. One of the major factors affecting wind turbine performance is the angle of attack of the blade. The aerodynamics and efficiency can be improved by improvising the lift-to-...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2023-01-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | https://ijtech.eng.ui.ac.id/article/view/5255 |
| Summary: | Turbines are efficient power generators.
Because wind energy is a clean fuel source, it is widely utilized in some
regions. One of the major factors affecting wind turbine performance is the
angle of attack of the blade. The aerodynamics and efficiency can be improved
by improvising the lift-to-drag ratio CL/CD to get the best design for wind
turbine blades. There are many factors affecting the efficiency of horizontal
wind turbine blades such as the angle of attack of the blade. Therefore, this
study investigated the effect of the angle of attack on coefficients and
forces, particularly on a blade with NACA 4412 airfoil in a horizontal axis
wind turbine. The length, thickness, and chord length of the blade were 3m,
0.36m, and 0.12 m
respectively. Computational Fluid Dynamics was used to develop to obtain lift
and drag coefficients in a horizontal wind turbine blade. In addition, the correlation between
different angles of attack, lift, and drag forces were studied and validated.
The results demonstrated that the lift and drag coefficients increase as the
angle of attack increases. Furthermore, the optimal angle of attack for this
study was 0° because it has the highest lift-to-drag ratio, resulting in the
greatest efficiency. The results demonstrated that it is possible to have a
different lift and drag coefficient for the same angles of attack at a similar
airfoil. |
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| ISSN: | 2086-9614 2087-2100 |