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Wind Power and Wind Turbines

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Wind Power and Wind Turbines

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    1. Ken Youssefi / Hsu Engineering 10, SJSU 1 Wind Power and Wind Turbines ENGR 10 San Jose State University

    2. Ken Youssefi / Hsu Engineering 10, SJSU 2

    3. Ken Youssefi / Hsu 3 Engineering 10, SJSU

    4. Ken Youssefi / Hsu Engineering 10, SJSU 4

    5. Ken Youssefi / Hsu Engineering 10, SJSU 5 Wind

    6. Ken Youssefi / Hsu Engineering 10, SJSU 6 Wind Turbine

    7. Ken Youssefi / Hsu Engineering 10, SJSU 7

    8. Ken Youssefi / Hsu Engineering 10, SJSU 8 Drag or Lift Design

    9. Ken Youssefi / Hsu Engineering 10, SJSU 9

    10. Ken Youssefi / Hsu Engineering 10, SJSU 10 Main components of a Horizontal Axis Wind Turbine

    11. Ken Youssefi / Hsu Engineering 10, SJSU 11

    12. Ken Youssefi / Hsu Engineering 10, SJSU 12 Power Generated by HWind Turbine

    13. Ken Youssefi / Hsu Engineering 10, SJSU 13 Power Generated by HWind Turbine

    14. Ken Youssefi / Hsu Engineering 10, SJSU 14 Power Generated by Wind Turbines

    15. Turbine Height 15 ©2010 Ping Hsu

    16. Ken Youssefi / Hsu Engineering 10, SJSU 16 Wind power is linearly proportional to which one of the following terms? Wind Speed (Wind Speed)2 (Wind Speed)3 (Wind Speed)4

    17. Ken Youssefi / Hsu Engineering 10, SJSU 17 If you are to design a high efficiency wind turbine, which one of the following efficiency values is reasonable as your design goal? 45% 60% 75% 90% 95%

    18. Ken Youssefi / Hsu Engineering 10, SJSU 18

    19. Ken Youssefi / Hsu Engineering 10, SJSU 19

    20. Ken Youssefi / Hsu Engineering 10, SJSU 20

    21. Ken Youssefi / Hsu 21 Engineering 10, SJSU

    22. Ken Youssefi / Hsu Engineering 10, SJSU 22 Wind Turbine – Blade Design (Shape)

    23. Ken Youssefi / Hsu Engineering 10, SJSU 23 Wind Turbine – Blade Design (Shape)

    24. Ken Youssefi / Hsu Engineering 10, SJSU 24 Wind Turbine – Blade Design

    25. Ken Youssefi / Hsu Engineering 10, SJSU 25

    26. Yaw Control Yaw control turns the turbine to face the wind. It can be done passively for lower power turbines. Yaw error means less captured power but too sensitive yawing causes mechanical wear with small power gain. Some yaw brake slippage is desirable so when the turbine is in shut-down mode, turbine will be yawed passively by the wind force. Low power turbines can yaw away from the wind as a way to shed excessive wind power. 26 Engineering 10, SJSU Ken Youssefi / Hsu

    27. Ken Youssefi / Hsu Engineering 10, SJSU 27 Why do turbine blades have a “twisted’ shape? Looks cool More aerodynamic Easy to remove from the mold it is made in Less weight near the tip of the blade. Keep angle of attack same along the blade

    28. Ken Youssefi / Hsu Engineering 10, SJSU 28 Wind Resources

    29. Ken Youssefi / Hsu Engineering 10, SJSU 29

    30. Ken Youssefi / Hsu Engineering 10, SJSU 30 Northern California annual average wind power

    31. Worldwide Energy Sources 2007 Ken Youssefi / Hsu 31 Engineering 10, SJSU Fossil fuels dominate energy sources – oil, coal, gasFossil fuels dominate energy sources – oil, coal, gas

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