by john zavalney. quick write have you ever seen wind do work? describe what and where you saw it?
TRANSCRIPT
byJohn Zavalney
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Explanation How can wind be captured and used to do work?
Quick Write
Have you ever seen wind do work? Describe what and where
you saw it?
QuickTime™ and a decompressor
are needed to see this picture.
Explanation How can wind be captured and used to do work?
It has been done for a long…long…time
Wind use PowerPoint
• Watch & listen to the following presentation• Take some notes on when, where and how wind
energy energy was captured and used
Wind Energy:Wind Energy:A A Historical Historical PerspectivePerspective
This presentation is adapted from KidWind Basic Workshop slide showhttp://www.kidwind.org/lessons/PPoint.html
Early “WINDMILL” in Afghanistan Early “WINDMILL” in Afghanistan (900AD)(900AD)
Dutch WindmillsDutch Windmillsas early as 1300as early as 1300
Water Water PumpersPumpers
Jacobs Turbine – 1920 - 1960Jacobs Turbine – 1920 - 1960
Smith-Putnam Turbine
Vermont, 1940's
Modern WindmillsModern Windmills
OrientationOrientationTurbines can be categorized into two overarching Turbines can be categorized into two overarching classes based on the orientation of the rotorclasses based on the orientation of the rotor
Vertical AxisVertical Axis Horizontal AxisHorizontal Axis
Horizontal Axis Horizontal Axis Wind TurbinesWind Turbines
• Rotors are Rotors are usually Up-wind usually Up-wind of towerof tower
• Some machines Some machines have down-wind have down-wind rotors, but only rotors, but only commercially commercially available ones available ones are small are small turbinesturbines
Types of Electricity Generating WindmillsTypes of Electricity Generating Windmills
Small (10 kW)•Homes•Farms•Remote Applications (e.g. water
pumping, telecom sites, icemaking)
Large (250 kW - 2+MW)
•Central Station Wind Farms
•Distributed Power
Intermediate (10-250 kW)•Village Power•Hybrid Systems•Distributed
Power
Modern Small Wind Turbines:Modern Small Wind Turbines:High Tech, High Reliability, Low MaintenanceHigh Tech, High Reliability, Low Maintenance
• Technically AdvancedTechnically Advanced• Only 2-3 Moving PartsOnly 2-3 Moving Parts• Very Low Maintenance Very Low Maintenance
RequirementsRequirements• Proven: ~ 5,000 On-Proven: ~ 5,000 On-
Grid Grid • American Companies American Companies
are the Market and are the Market and Technology LeadersTechnology Leaders
10 kW50 kW
400 W
900 W(Not to scale)
Large Wind TurbinesLarge Wind Turbines
• 450’ base to blade450’ base to blade• Each blade 112’Each blade 112’• Span greater than Span greater than
747747• 163+ tons total163+ tons total• Foundation 20+ feet Foundation 20+ feet
deepdeep• Rated at 1.5 – 5 Rated at 1.5 – 5
megawattmegawatt• Supply at least 350 Supply at least 350
homeshomes
Large Wind TurbinesLarge Wind Turbines
Each blade 112’Each blade 112’
Large Wind TurbinesLarge Wind Turbines
Each blade 112’Each blade 112’
Electrical Electrical ProductionProduction
Where do we get our Where do we get our electricity?electricity?
This PowerPoint was modified from the KidWind web site:
http://www.kidwind.org/index.html
Wind Energy 101 : http://www.kidwind.org/lessons/PPoint.html
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Explanation How can wind be captured and used to do work?
Build a Wind Turbine
Simple withlimited capabilities
or..commercial withmultiple capabilities
Here is where you follow the directions for the materials you have
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Explanation How can wind be captured and used to do work?
Wind Turbine Experimentation
•Measure electrical output
•Identify variables like wind speed and ground obstruction that effect turbine speed
•Change one variable at a time and record data as time permits
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Explanation How can wind be captured and used to do work?
Wind Turbine Experimentation
Activities tomorrow will focus on blade design
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AssessmentAssessment
Work on FINAL PROJECT
PowerPoint Presentation
The GOOD the BAD and the FUTURE of wind generated energy
• Gather research and resources• Putting your PowerPoint together