Friday, 15 September 2017

electromagnetism - Increasing efficiency of a kinetic energy battery charger


I want to use Faradays law to convert the kinetic energy from actions such as a jog/shake to produce electricity to ultimately charge a battery.


Materials



  • Neodynium Magnet 3/4 diameter (2)

  • Solenoid casing (x2)

  • Enameled Copper wire (x2)


  • 1800mAh battery

  • Spring (x2)


Plan


2 solenoids with the magnet inside connected to a spring that will move up and down or use urethane stoppers. Then use a rectifier to convert AC to DC and charge the battery.


So I'm essentially adopting the faraday flashlight concept using two solenoids. How do I calculate current output and how do I to go about increasing efficiency?




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