Flywheel Battery
Tom Stanton・13 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.
