introduction to wind energy. where do we get our electricity?
Post on 22-Dec-2015
220 Views
Preview:
TRANSCRIPT
Introduction to
Wind Energy
Where do we get our electricity?
What is “Renewable Energy?”
Major Parts of a Wind Turbine
Engine/Generator
Wind Turbine Perspective
Engine56 tons
Tower3 sections
Workers
Blade120’ long
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.
Carnage!
Jobs in the Wind Industry (next slides)
Construction
Operations/Maintenance
Engineering/Design
Public Relations/Organizing Support
Environmental Assessment
Wind Turbine Project!Create and Design Your Own
Sketch of Blade• Construction• General Shape• All Dimensions• Number of Blades• Labeled Materials!
Available Materials (ask for others)• Dowel Rod(s)• Manila Folder• Aluminum Foil• Plastic Wrap• Popsicle Sticks• Straws• Paperclip
Pre-Construction Materials
• Wire• Cardboard• Foam Plates• Plastic Cup• Index Cards• Glue• Hot Glue• Masking Tape
• 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• Kidwind Project• Wind Turbines• Wind Mill• Airfoil Design• Wind Turbine Airfoils• Wind Turbine Design
top related