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Flywheels

Flywheels. Load-leveling and Transportation. What is a Flywheel?. Rotating device which can collect or expend energy. Flywheel Physics. E = ½ I ω 2 I = kMr 2 a. Engineering Problems. High Rotational Speed

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Flywheels

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  1. Flywheels Load-leveling and Transportation

  2. What is a Flywheel? • Rotating device which can collect or expend energy.

  3. Flywheel Physics • E = ½ Iω2 • I = kMr2 • a

  4. Engineering Problems • High Rotational Speed • Tensile strength of materials • Energy Loss • http://www.youtube.com/watch?v=L2pz1PkhAo8

  5. Technologies • Steel to composite • Magnetic bearings • Construction methods

  6. Ragone plot

  7. Uses • Common Applications • NASA • Transportation • Load-Leveling

  8. Flywheels in Daily Life • Potter’s wheel • Clocks • Treadle in sewing machine

  9. Flywheels in NASA • Potentially power space shuttles

  10. Flywheels in Transportation • Electric rails • HEVs • Chrysler Patriot

  11. Flywheels as Load Levelers • Beacon Power Corporation • UPS

  12. Summary

  13. References • http://www.nasa.gov/missions/science/f_flywheel.html • http://www.mpoweruk.com/alternatives.htm • http://www.upei.ca/~physics/p261/projects/flywheel2/Whatis.html • http://en.wikipedia.org/wiki/Flywheel#Flywheel_in_the_internal_combustion_engine • http://www.pentadyne.com/ • http://www.narucmeetings.org/Presentations/Beacon%20Power%20NARUC%20presentation%2020090216%20%5BFinal%5D.pdf • http://www.discoversolarenergy.com/storage/flywheels.htm • http://www.vyconenergy.com/ • http://www.flywheelenergystorage.com/

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