Flywheel Battery

Tom Stanton2 minutes read

A small spinning top can spin for over five minutes with just one spin by hand, and increasing its weight extends its spinning time. Using permanent magnets, a magnetically levitated flywheel can be created, generating up to 10 volts of electricity when spun by hand.

Insights

  • Increasing the weight of a spinning top can significantly enhance its spinning duration, showcasing the direct correlation between mass and rotational endurance.
  • Utilizing a magnetically levitated flywheel with a non-magnetic aluminum frame allows for the generation of electricity through an alternator, demonstrating a practical application of magnetic levitation technology in energy production.

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Recent questions

  • How can a spinning top spin for over five minutes?

    By increasing weight and using magnets for levitation.

  • What materials can be used to build a magnetically levitated flywheel?

    Aluminium extrusions and permanent magnets.

  • How is energy extracted from the magnetically levitated flywheel?

    By mounting a rotor with magnets on the axle to create an alternator.

  • What is the purpose of a full bridge rectifier in this system?

    To convert alternating current to direct current.

  • How much voltage can the alternator generate by spinning the flywheel?

    Up to 10 volts.

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Summary

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"Creating Magnetically Levitated Flywheel for Energy Generation"

  • A small spinning top can spin for over five minutes with just one spin by hand.
  • Increasing the weight of the spinning top can extend its spinning time.
  • Using permanent magnets, a magnetically levitated flywheel can be created.
  • Aluminium extrusions can be used to build a frame for supporting the magnets.
  • Arranging magnets with opposing poles allows for levitation, similar to a spinning top.
  • The flywheel, machined out of aluminium, is non-magnetic to avoid levitation issues.
  • A rotor with magnets can be mounted on the axle to create an alternator for energy extraction.
  • A full bridge rectifier can convert the alternating current from the alternator to direct current.
  • By spinning the flywheel by hand, the alternator can generate up to 10 volts, powering LEDs and electric motors.
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