Vishwas N Bedekar
Middle Tennessee State University, USA
Title: Multimechanism energy harvesting combining Faraday’s law of induction and piezoelectric effect
Biography
Biography: Vishwas N Bedekar
Abstract
The objective of this study was to design, develop and test a multimechanism energy harvesting device to harvest energy from
mechanical vibrations using two different mechanisms viz. Piezoelectric Effect and Faraday’s Law of Induction. In this study, we
have demonstrated multimodal energy harvesting using piezoelectric and electromagnetic materials, utilizing mechanical vibrations
as primary source of energy. Multimodal Energy Harvesting captures energy from two or more sources or mechanisms using “Product
Effect”. Development of new piezoelectric compositions for enhancing the energy density using conventional ceramic processing
route was followed by design and development of electromagnetic energy harvester. Fabrication of multimechanism device involved
a magnetic levitation harvester with piezoelectric bimorph sandwiched between the two permanent magnets moving inside a coil.
Multimodal energy harvesting enhances output energy of a harvester and can be utilized for many on-board sensor applications such
as harvested energy from a car’s engine vibrations can be used to supply additional energy to the wireless sensors on board, such as
temperature sensor and dashboard indicators, whose power requirements are of the order of several milliwatts (mW).