Chapter 5: Glaciers and Deserts I. Glaciers and Glaciation ...
OBJECTIVES: HOW TO MANIPULATE WIND ENERGY Two ways glaciers move.
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Transcript of OBJECTIVES: HOW TO MANIPULATE WIND ENERGY Two ways glaciers move.
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OBJECTIVES: HOW TO MANIPULATE WIND ENERGY
• Two ways glaciers move
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ENERGY Is the ability to do work
RENEWABLE ENERGY SOURCE NON-RENEWABLE ENERGY SOURCE
Energy source we can use over and over again
Energy source we are using up and cannot recreate in a short period of time
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ANALYZING OUR SOURCE
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ANALYZING OUR SOURCE
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GENERATING WIND POWER
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GENERATING WIND POWER
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Attach a voltage probe
Attach a current probe
POWER = VOLTAGE x CURRENT
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LET THE GAMES BEGIN• Competition to see which group can build the
most powerful wind device
• Each group will discuss their plan for designing a wind-turbine:– Thickness of paper– How much tape– How much clay– Length of straw– Shape of the blade
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WINDMILL DESIGN & MATERIAL SELECTION
• List at least 3 factors that make a wind-powered device a good alternative energy converter
• Illustrate the shape of your windmill blades. What are the benefits of the shape you selected?
• Which thickness did you select for your blade? Why?• How will you know if your blade design is effective
and efficient?
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TRIAL AND ERROR• Describe the features of the most efficient windmill.
List at least 3 features• What one variable will you change about your
windmill to improve the efficiency of your model?• Did the changes you made improve the efficiency of
your model?
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• Sequence the cutting of the template to make it easier– Show students the one I built
• Wrap straws with layer or two of tape to stop blades from sliding off one end (other end will have clay)
• Bring handful of leads and jumpers• Make sure students test at 3 different speeds• MAKE EXCEL FOR STUDENTS TO INPUT THEIR I,V,P …• Make sure blade tips are not bent
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THINK OUTSIDE OF THE BOX
ROOFTOP WIND TURBINE
HIGHWAY WIND TURBINE
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Referenceshttp://www.metaefficient.com/images/wind_power_u.s._turbines.jpg
http://www.sustainablefootprint.org/en/cms/selplaatje.asp?id=223
http://www.hangardogs.com/blog/wp-content/uploads/2009/04/wind-power-5.jpg
http://saferenvironment.files.wordpress.com/2008/11/turbines-water.jpg
http://www.shiftingsolutionsllcinfo.com/wp-content/uploads/2009/04/renewable_energy_types.gif
http://www.teachengineering.org/collection/cub_/lessons/cub_images/cub_environ_lesson03_figure2.gif
http://aeonpi.com/wp-content/uploads/2008/09/us_wind_power_map1.png
http://www.our-energy.com/pictures/static_content/wind_energy_europe_usa_comparison/us_wind_energy_data_2007.jpg
http://www.caribbeanedu.com/images/kewl/windenergy02.gif
http://keetsa.com/blog/wp-content/uploads/2007/10/wind-turbines-on-a-highway-signage-to-produce-wind-energy_179.jpg
http://www.windpowerninja.com/wp-content/uploads/2009/02/rooftop-wind-turbines.jpg
http://www.powerhousekids.com/wcm/groups/wcm_internet/@int/@aekids/documents/image/022691.jpg