Theoretical, Numerical and Experimental Investigation of a Faraday Disc Generator for Energy Harvesting Applications
Keywords:
Faraday disc, electromagnetic induction, energy harvesting, experiment, theoretical analysisAbstract
This work investigates theoretically, numerically, and experimentally a Faraday disc generator. A Faraday disc consists of a conducting solid ring-shaped rotates at different speeds while immersed in a magnetic field. Their interaction induces an electric potential difference between the inner and outer radii of the disc, which is measured by connecting a C shaped load resistor of aluminum. This generator is constructed from readily available, inexpensive materials that can be conveniently replicated in any laboratory. This approach provides an effective educational tool for understanding the underlying physics of electromagnetic induction phenomena, construction challenges, and capabilities this type of small-scale DC generator device offers. Such generators can be used as a starting point for harvesting untapped kinetic energy, such as the movement of the human body and vibrations in machinery, among others. In addition, we discuss the challenge of designing and constructing a load resistance that allows measurement and power generation on the generators in the centimeter scale for energy harvesting applications, aiming to replace batteries for several sub-watt electronic devices
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