Piezoelectric Energy Harvester With Shape Memory Alloy Actuator Using Solar Energy

被引：17

作者：

Reddy, A. Rami ^{[1
]}

Umapathy, M. ^{[1
]}

Ezhilarasi, D. ^{[1
]}

Uma, G. ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Instrumentat & Control Engn, Tiruchirappalli 620015, Tamil Nadu, India

来源：

IEEE TRANSACTIONS ON SUSTAINABLE ENERGY | 2015年 / 6卷 / 04期

关键词：

Cantilever beam; energy harvester; piezoelectric; shape memory alloy (SMA); solar energy; DESIGN;

D O I：

10.1109/TSTE.2015.2442758

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A piezoelectric cantilever beam-based energy harvester working with solar energy is proposed in this paper. The piezoelectric cantilever beam is excited by a shape memory alloy (SMA) spring actuator. The heating and cooling of the SMA actuator is done by designing an appropriate piping and transport system with water as a working fluid. The frequency and amplitude of excitation force exerted by an SMA actuator to the piezoelectric cantilever beam depend on the flow rate of water used for heating and cooling of SMA and the temperature of the water. The energy harvester is modeled analytically and fabricated to evaluate its performance in the laboratory. The analytical and experimental results show that higher output voltage from the energy harvester can be obtained with higher water temperature and frequency of the output voltage is limited to the dynamics of the SMAactuator. The voltage generated with the proposed energy harvester at the flow rate of 24 ml/s with the temperature of 70 degrees C is found to be 12 V. The harvester utilizes only the solar energy for its operation and hence the proposed design is a new addition to the area of energy harvesting using piezoelectric cantilever beam.

引用

页码：1409 / 1415

页数：7

共 35 条

[1] Energy Harvesting from Highly Unsteady Fluid Flows using Piezoelectric Materials [J].