WindTurbineBladeDesign..March.08

WindTurbineBladeDesign..March.08 - Wind Turbine Blade...

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Wind Turbine Wind Turbine Blade Design Blade Design Classroom Activities for Classroom Activities for Wind Energy Science Wind Energy Science Joseph Rand Joseph Rand Program Coordinator Coordinator The Kidwind Project The Kidwind Project [email protected] [email protected] 877-917-0079
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What is KidWind? What is KidWind? The KidWind Project is a team of teachers, students, engineers and practitioners exploring the science behind wind energy in classrooms around the US. Our goal is to introduce as many people as possible to the elegance of wind power through hands-on science activities which are challenging, engaging and teach basic science principles.
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Orientation Turbines can be categorized into two overarching classes based on the orientation of the rotor Vertical Axis Horizontal Axis
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Calculation of Wind Power Power in the wind   Power in the wind   Effect of swept area, A Effect of wind speed, V – Effect of air density,  ρ R Swept Area: A = πR 2 Area of the circle swept by the rotor (m 2 ). Power in the Wind = ½ρAV 3
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Number of Blades – One Rotor must move more rapidly to capture same amount of wind Gearbox ratio reduced Added weight of counterbalance negates some benefits of lighter design Higher speed means more noise, visual, and wildlife impacts Blades easier to install because entire rotor can be assembled on ground Captures 10% less energy than two blade design Ultimately provide no cost savings
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