Numerical Simulation of Inertial Energy Harvesters using Magnets

Goncalves, A.M.D.; Morgado, Manuel; Morgado, L. F.; Silva, Nuno; Morais, Raul

doi:10.1007/978-3-319-91334-6_103

Cited by 1 publication

(1 citation statement)

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“…With all these variables, this experimental work is intended to verify whether it is possible to increase the autonomy of the sensors or even make the sensors energetically autonomous. Some authors use mathematical models to predict the values of electrical energy for the device configurations [ 38 , 39 , 40 ]. In this work, the mathematical expressions are obtained, taking into account the experimental results of the individual coils tests to predict the best configurations, and results are confirmed experimentally with freefall tests, load tests and frequency tests to predict the output electrical power and confirm the calculated values.…”

Section: Methodsmentioning

confidence: 99%

Underwater Energy Harvesting to Extend Operation Time of Submersible Sensors

Faria

Martins

Matos

et al. 2022

Sensors

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A linear electromagnetic energy harvesting device for underwater applications, fabricated with a simple manufacturing process, was developed to operate with movement frequencies from 0.1 to 0.4 Hz. The generator has two coils, and the effect of the combination of the two coils was investigated. The experimental study has shown that the energy capture system was able to supply energy to several ocean sensors, producing 7.77 mJ per second with wave movements at 0.4 Hz. This study shows that this energy is enough to restore the energy used by the battery or the capacitor and continue supplying energy to the sensors used in the experimental work. For an ocean wave frequency of 0.4 Hz, the generator can supply power to 8 sensors or 48 sensors, depending on the energy consumed and its optimization.

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Section: Methodsmentioning

confidence: 99%