Title

Creating a Piezoelectric Energy Harvester at a Desired Resonant Frequency

School Name

South Carolina Governor's School for Science & Mathematics

Grade Level

12th Grade

Presentation Topic

Engineering

Presentation Type

Mentored

Abstract

Every day, low-frequency vibrations occur in various environments. All these vibrations have the potential to be harvested and transformed into potential energy. In this project, a piezoelectric energy harvester was created and tested virtually for the potential to harvest these vibrations at a desired resonant frequency. Most common low-frequency vibrations occur under 1 kHz, and the main goal pf this research was to find a common desired frequency under 100 Hz. A piezoelectric energy harvester was created to harvest vibrations from the floor when people are walking, approximately 18 Hz This research found the most efficient way of forming a piezoelectric energy harvester out of the material polyvinylidene fluoride, PVDF. The design that was produced out of this research was a snail-like coil. The energy harvester's shape was adjusted throughout the research to reach the desired frequency of 18 Hz. By the digital creation and testing, the target frequency was achieved at 18.403 Hz. This final result of the coil ended up having the dimensions of 2.35 revolutions with a thickness of 0.70 mm and band width of 7.00 mm. Continuing this study can offer a new source of renewable energy that may be used in a person's everyday life.

Location

Johns Hall 109

Start Date

3-28-2020 9:15 AM

Presentation Format

Oral Only

Group Project

No

COinS
 
Mar 28th, 9:15 AM

Creating a Piezoelectric Energy Harvester at a Desired Resonant Frequency

Johns Hall 109

Every day, low-frequency vibrations occur in various environments. All these vibrations have the potential to be harvested and transformed into potential energy. In this project, a piezoelectric energy harvester was created and tested virtually for the potential to harvest these vibrations at a desired resonant frequency. Most common low-frequency vibrations occur under 1 kHz, and the main goal pf this research was to find a common desired frequency under 100 Hz. A piezoelectric energy harvester was created to harvest vibrations from the floor when people are walking, approximately 18 Hz This research found the most efficient way of forming a piezoelectric energy harvester out of the material polyvinylidene fluoride, PVDF. The design that was produced out of this research was a snail-like coil. The energy harvester's shape was adjusted throughout the research to reach the desired frequency of 18 Hz. By the digital creation and testing, the target frequency was achieved at 18.403 Hz. This final result of the coil ended up having the dimensions of 2.35 revolutions with a thickness of 0.70 mm and band width of 7.00 mm. Continuing this study can offer a new source of renewable energy that may be used in a person's everyday life.