objectives: how to manipulate wind energy two ways glaciers move
TRANSCRIPT
OBJECTIVES: HOW TO MANIPULATE WIND ENERGY
• Two ways glaciers move
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
ANALYZING OUR SOURCE
ANALYZING OUR SOURCE
GENERATING WIND POWER
1
2
3
GENERATING WIND POWER
1
2
3
Attach a voltage probe
Attach a current probe
POWER = VOLTAGE x CURRENT
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
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?
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?
• 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
THINK OUTSIDE OF THE BOX
ROOFTOP WIND TURBINE
HIGHWAY WIND TURBINE
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