Design and Evaluation of a Novel Knitted Piezoelectric Energy Harvester for Tiny Ocean Waves

  • 蔡 介偉

Student thesis: Master's Thesis

Abstract

The thesis presents a novel knitted PVDF films energy harvester with knocking structure for tiny ocean waves This design is used in low amplitude wave condition and it can transform the low frequency of waves into higher frequency vibrations using a knocking structure with a spring This knitted PVDF films energy harvester contains three units which are knitted PVDF films beating element and a knocking structure with a spring Knocking structure is designed in three kinds of shapes which are cylinder shape half-capsule shape and tumbler shape For the simulation results the length of supporting layers does not affect the harvesting efficiency for this structure obviously In addition knocking structure in tumbler shape can add more stress in piezoelectric materials than with cylinder shape or half-capsule shape The novel knitted PVDF films energy harvester with knocking structure can generate 0 31mW 0 48mW 0 67mW in 1 5cm 1 75cm 2cm amplitude of waves respectively The knitted PVDF films energy harvester is 2 6-2 8 times greater than the multi-PVDF films type in generating energy When weaving PZT films to a knit this energy harvester can transform more wave energy into usable electric energy
Date of Award2014 Aug 15
Original languageEnglish
SupervisorSheng-Chih Shen (Supervisor)

Cite this

Design and Evaluation of a Novel Knitted Piezoelectric Energy Harvester for Tiny Ocean Waves
介偉, 蔡. (Author). 2014 Aug 15

Student thesis: Master's Thesis