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Factors Affecting Wind Turbine Efficiency

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Here are some factors that could affect the efficiency of a wind turbine.

Published in: Technology, Business

Factors Affecting Wind Turbine Efficiency

  1. 1. Factors Affecting Wind Turbine Efficiency<br />
  2. 2. I bet you alreadyknow that …<br />
  3. 3. I bet you alreadyknow that …<br />…UNDOUBTEDLY,Wind Energy is one of the CLEANEST forms of producing power from a renewable source.<br />
  4. 4. But are you aware that wind turbines are not that easy to set up?<br />
  5. 5. The efficiency of wind turbines depend on 5 major factors:<br />
  6. 6. WIND POWER<br />
  7. 7. WIND POWER<br />ALTITUDE<br />
  8. 8. WIND POWER<br />ALTITUDE<br />OBSTRUCTIONS<br />
  9. 9. WIND POWER<br />ALTITUDE<br />BLADE<br />AERODYNAMICS<br />OBSTRUCTIONS<br />
  10. 10. WIND POWER<br />ALTITUDE<br />AIR<br />TEMPERATURE<br />BLADE<br />AERODYNAMICS<br />OBSTRUCTIONS<br />
  11. 11. 1<br />WIND POWER<br />
  12. 12.
  13. 13. um…yeah.<br />
  14. 14. In other words,<br />
  15. 15. The faster the wind speed and the stronger the wind force, the greater the amount of power generated by a wind turbine.<br />
  16. 16. Different regions have different wind speeds. Therefore it’s vital to understand the relationship between wind speeds with power production.<br />
  17. 17. 2<br />ALTITUDE<br />
  18. 18. Places of higher altitudes have faster wind speeds due <br />to various <br />atmospheric factors.<br />
  19. 19. Higher places also have lesser obstructions from the surrounding hills, trees and buildings.<br />
  20. 20. Wind speed increases by 12% as the distance between the turbine and ground is doubled.<br />
  21. 21. 3<br />OBSTRUCTIONS<br />
  22. 22. Wind is slowed by <br />trees, buildings, hills <br />and mountains which <br />all create some form <br />of friction that <br />restrict free airflow.<br />
  23. 23. It is wise to measure <br />the wind speed at a proposed site for at least one year to determine project viability.<br />
  24. 24. 4<br />BLADE <br />AERODYNAMICS<br />
  25. 25. The shape of blades<br /> should be accurately selected for getting maximum efficiency<br />
  26. 26. The amount of lift for a given airfoil depends heavily on the angle that it makes with the direction of the relative wind, known as the angle of attack.<br />
  27. 27. When the angle of attack gets too large, turbulence develops<br />and drag increases significantly, while<br />lift is lost.<br />
  28. 28. 5<br />AIR<br />TEMPERATURE<br />
  29. 29. The power from a wind turbine will increase almost 16% as the temperature drops from + 20° C to - 20° C for any given wind speed.<br />
  30. 30. Colder air is denser<br />and increases<br />power output.<br />
  31. 31. END<br />
  32. 32. RESOURCES<br />http://www.articlesbase.com/environment-articles/wind-turbine-physics-factors-affecting-performance-1450642.html<br />http://www.alternative-energy-news.info/what-factors-affect-the-output-of-wind-turbines/<br />http://www.solarpowerwindenergy.org/2010/03/04/what-factors-affect-the-output-of-wind-turbines/<br />http://www.istockphoto.com/file_thumbview_approve/4912563/2/istockphoto_4912563-design-elements-wind.jpg<br />

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