Crystal Hybridized Pyro-Piezoelectric Ferrofluidic Harvester

TL;DR

This paper presents a novel hybrid pyro-piezoelectric ferrofluidic harvester that captures ambient energy from human movement and temperature fluctuations, demonstrating significant energy output suitable for wearable or implantable devices.

Contribution

It introduces a new hybridized crystal quartz piezoelectric and PZT pyroelectric ferrofluidic harvester for efficient ambient energy harvesting from human motion and thermal changes.

Findings

Achieved 7.89 MJ energy harvest over 24 hours.

Identified mean frequencies of 1.7 Hz for walking and 4.3 Hz for running.

Demonstrated feasibility of wearable/implantable energy harvesting devices.

Abstract

This paper investigates the usage of a hybridized Pyro-Piezo Ferrofluidic harvester to capture useful energy from ambient vibration and temperature fluctuation. Consisting of a ferrofluidic core, the proposed device utilizes pyro and piezoelectric materials to charge an integrated ultracapacitor for 'trickle' energy harvesting and usage. In particular, a wearable or implantable hybridized crystal quartz piezoelectric and PZT pyroelectric based ferrofluidic harvester is characterized under human ambient energy boundaries. The frequency associated with typical bodily movement such as walking and strenuous bodily movement such as running was determined via accelerometer and analyzed via fast fourier transform, with determined mean frequencies of 1.7 Hz for typical bodily movement and 4.3 Hz for strenuous movement. Under an optimal continuous harvestation period of ~24 hours, the CQF harvester was characterized with a energy harvestation of 7.89 MJ