Introduction to Wind Energy. Where do we get our electricity ?. What is “Renewable Energy?”. Major Parts of a Wind Turbine. Engine/Generator. Workers. Blade 120’ long. Engine 56 tons. Tower 3 sections. Wind Turbine Perspective. Wind Turbine Perspective. 350’+ base to blade
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Introduction to Wind Energy
Major Parts of a Wind Turbine Engine/Generator
Workers Blade 120’ long Engine 56 tons Tower 3 sections Wind Turbine Perspective
Wind Turbine Perspective • 350’+ base to blade • Each blade 120’ • Span greater than a large plane • Weigh approx 160 tons • Foundation 20+ feet deep • Supply at least 350 homes
Yawing – “Facing the Wind” • Active Yaw (all medium & large turbines produced today) • Meter on engine tells controller which way to point the hub into the wind. • Yaw drive turns gears to point the hub into wind. • Passive Yaw (Most small turbines) • Wind forces direct rotor using tail vanes.
Breakin’ it down • If PA generates 179 MW (per day) • Megawatt = 1,000,000 watts • An average household uses 16,500 watts per day. How many houses will PA’s wind farms support? • Approximately 10,850 homes at no cost to the environment.
Why do windmills need to be high in the sky?? Further From Earth -Less Turbulence from trees, buildings, etc. -Higher Constant Speed.
Wind Turbine Project! Create and Design Your Own
Pre-Construction Materials • Number of Blades (2, 3, 4, 6, 8) • Blade Materials • Size & Shape of Blades (5”-15”) • Twist and Taper • Angle of Attack Topics to Research Keywords for Research • KidwindProject • Wind Turbines • Wind Mill • Airfoil Design • Wind Turbine Airfoils • Wind Turbine Design Available Materials (ask for others) Dowel Rod(s) Manila Folder Aluminum Foil Plastic Wrap Popsicle Sticks Straws Paperclip Sketch of Blade • Construction • General Shape • All Dimensions • Number of Blades • Labeled Materials! • Wire • Cardboard • Foam Plates • Plastic Cup • Index Cards • Glue • Hot Glue • Masking Tape