The Effect of Blade Number on Small Horizontal Axis Wind Turbine (HAWT) Performance: An Experimental and Numerical Study
| Autor: | Andi Firdaus Sudarma, Muhammad Kholil, Indra Almahdy, Subekti Subekti |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Horizontal axis
020401 chemical engineering Blade (geometry) business.industry 020209 energy 0202 electrical engineering electronic engineering information engineering Environmental science 02 engineering and technology Structural engineering 0204 chemical engineering business Turbine General Environmental Science |
| Zdroj: | International Journal of Environmental Science and Development. 11:555-560 |
| ISSN: | 2010-0264 |
| DOI: | 10.18178/ijesd.2020.11.12.1307 |
| Popis: | The effect of blade number on small Horizontal Axis Wind Turbine (HAWT) has been studied experimentally and numerically in this research. The turbine blade is made of a flat metal sheet and the tip was formed to shape a winglet. The 5-blades turbine was tested inside a wind tunnel for performance investigation at different wind speeds. The experiment was conducted under various wind speed, i.e. 3.5 m/s, 3.9 m/s, 4.3 m/s, 4.6 m/s dan 5 m/s. Furthermore, three wind turbines geometry with different blade number (3, 4, and 5 blades) were built for numerical study purpose by using Ansys Fluent and the results were compared to the experimental one. The results show that the blade number does increase the wind turbine torque and there is also more power generated from the turbine with more blade numbers since torque is related to pressure. Moreover, the winglet helps the blade to retain the flow and increases the pressure on the blade surface. However, the experimental measurements obtained were smaller than the numerical predictions about 50% on the average since more unidentified losses existed and not accounted for the calculation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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