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HOT TOPICS: Wind Energy Rachel Ruggirello, Science Educator Paul Markovits , Science Educator

HOT TOPICS: Wind Energy Rachel Ruggirello, Science Educator Paul Markovits , Science Educator. Locate the best region(s ) for each type of renewable energy. NREL Map of Infrastructure and Potential Renewable Energy Sources. Aims of this Workshop. PEDAGOGY

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HOT TOPICS: Wind Energy Rachel Ruggirello, Science Educator Paul Markovits , Science Educator

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  1. HOT TOPICS: Wind EnergyRachel Ruggirello, Science EducatorPaul Markovits, Science Educator

  2. Locate the best region(s) for each type of renewable energy. NREL Map of Infrastructure and Potential Renewable Energy Sources

  3. Aims of this Workshop PEDAGOGY • Determine the ways in which wind energy can be used to teach physical science content, the engineering design process and inquiry skills • Develop competency in hands-on, inquiry demonstrations and lab experiences about wind energy for the classroom SCIENCE CONTENT • Differentiate between renewable and nonrenewable energy sources • Explain the properties of fluids, like water an air, and how these characteristics, combined with the energy of the sun, create wind • Investigate the force of wind and determine the impact of a variety of factors on wind power • Explore the components and design considerations of wind turbines • Create an ideal blade design and analyze the efficiency of wind turbines using this design

  4. What is Energy? • Energy makes change possible. We use energy for everything we do. • Heat, light, motion, electrical, chemical, nuclear, gravitational • How would you classify the forms listed above?

  5. Clean Energy? • The growth of clean and domestic renewable energy is an important part of addressing climate change and increasing energy security. • What are some examples of clean and renewable energy sources?

  6. Wind Energy as a Theme for Teaching Science • Interdisciplinary topic • Hits on many important strands of the NSES • Can emphasize some content more heavily to meet needs of your curriculum • Tied to basic scientific principles • Authentic problem • Focus of current scientific research, engineering applications and industry

  7. What is Wind?? • 1 to 2% of the sun’s radiation turns into wind energy when it arrives on Earth • This is 100 times all of the energy consumed on the planet!!

  8. Nature of wind • Wind is affected by many climatic and geographic factors • Wind is intermittent • Win occurs both on land and at sea • Wind speed is affected by topography and elevation • Landforms affect the speed, frequency and turbulence of wind • A minimum of 3 m/s is needed to drive a wind turbine and generate electricity • A 10% increase in wind speed will lead to ~30% increase in power output from a wind turbine Did you know?

  9. How do human’s use wind? • Humans have been harnessing wind since 500-900 AD • Ancient farmers in Persia used wind power for water-pumping • Wind power turns kinetic energy of wind into mechanical or electrical power

  10. The Windmill • Windmills were improved and perfected over 500 years (1300 – 1875 AD) • Windmills used wind power to turn the rotor (rotational motion) and then transfer this energy to mechanical energy • To grind, crush, press, or pump

  11. Wind Turbines • A type of windmill that transforms the mechanical energy of the turning rotor into electricity using a generator • Much, much larger than windmills • Can have rotor diameters of 145 meters and be as tall as 50 story buildings!!! • Wind farms are comprised of many wind turbines placed strategically Wind farm in the Midwest.

  12. Inside the Wind Turbine The Nacelle: Where wind becomes electricity.

  13. Science Concepts Students NEED to Know • Density • Pressure • Kinetic Molecular Theory • Lift Force • Newton’s Laws of Motion • Speed • Elevation and Topography • Climate • Energy Transfer, Transformation and Conservation • Electricity • Series and Parallel Circuits • Power, Volts, and Amps • Technological Design and Experimentation

  14. Overview of Today • WIND ENERGY CURRICULUM • What’s in the Handout? • POGIL Models – • Investigating the Force of Wind • Do Models 1 and 2 (Matter and Density) – pp. 6-8 • Do Model 8 (Hot Air Balloons) – pp. 26-17 • DEMOS • Warm fluid rises? • Hot air balloons • LABS • Effect of topography on wind • Investigating generators and turbines • CHALLENGE • Build the most efficient turbine by modifying blade design • EXTENSION • Creating a wind farm • CLOSING and EVALUATION

  15. Thank you!!!!Information about borrowing kits will be sent to you via emailPlease sign up for the next Hot Topics Workshop on Bioenergy taking place on Saturday, February 5th. Rachel Ruggirello ruggirello@wustl.edu Paul Markovits markovits@wustl.edu

  16. Examples of Wind Turbines of a Variety of Blade Materials, Numbers, Orientation, and Pitch Wind Turbine Blade Design

  17. Source: Carter Wind Turbines Ltd

  18. Source: Garrad Hassan

  19. Source: National Energy Education Development Project

  20. Source: Lysippos, Wikimedia Commons author

  21. Aerogenerator X – compare to a sycamore seed because it rotates on its axis Source: The Guardian

  22. Source: Hummer Wind Turbines

  23. Source: Hummer Wind Turbines

  24. Source: Honeywell Wind Turbines

  25. Source: World News

  26. Source: Green Terra Firma

  27. Source: Domestic Fuel

  28. Source: Treehugger.com

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