Evaluation of smart-fabric approach to biomechanical energy harvesting

Abstract

This thesis evaluates the proposed use of piezoelectric energy harvesting methods as a power source for light-up sneakers. Light-up sneakers currently marketed for purposes of pedestrian visibility and personal fashion are powered by primary or secondary batteries; maintenance requirements could potentially be reduced or eliminated by introducing a renewable power source drawn from the wearer's body. A test was made to determine the possible power levels available from piezoelectric fiber elements mounted on the shoe upper; approximately 10nW of power was developed during walking. In addition to performance in terms of power generated, cost, durability, manufacturability, and user impact also need to be considered before applying this technology.