Development of an ocean wave energy harvester with a built-in frequency conversion function

Viet, N. V.1; Wang, Q.2; Carpinteri, A.3

2018-02

10.1002/er.3851

INTERNATIONAL JOURNAL OF ENERGY RESEARCH   影响因子和分区

0363-907X

1099-114X

The research develops a novel harvester associated with a built-in frequency conversion device to harness energy from ocean waves based on the piezoelectric effect. The developed harvester consists of 2 generators driven by rotational motions converted from vertical motions by a rack and pinion actuator. The generator has a rotator with a magnetic bar attached to its blade tips and a stator. By this innovative design, the harvester is capable of converting ocean waves with low frequencies to mechanical vibrations with higher excitation frequencies of the piezoelectric transducer for increasing its energy conversion efficiency. A corresponding mathematical model for the harvester is developed to evaluate the generated power. The simulation results show that the generated power increases with increases in the ocean wave height, number of magnetic bars and decreases in the wave period, the distance between 2 opposite magnetic bars, and harvester's submerged part height. The power output is realized up to 260 W with the height, length, and width of the harvester being 1m x 1m x 1m, at the ocean wave height and period being 2 m and 7 seconds, respectively.

frequency conversion ocean waves piezoelectric energy harvester wave-structure interaction

SCI ; EI

英语

其他

Energy & Fuels ; Nuclear Science & Technology

Energy & Fuels ; Nuclear Science & Technology

WOS:000422754000026

WILEY

20180404670504

Conversion efficiency ; Energy conversion ; Energy harvesting ; Hydroelectric generators ; Magnetism ; Oceanography ; Optical frequency conversion ; Piezoelectricity ; Vibrations (mechanical) ; Water waves

Oceanography, General:471.1 ; Seawater, Tides and Waves:471.4 ; Energy Conversion Issues:525.5 ; Hydroelectric Power Plants:611.1 ; Wave Energy:615.6 ; Electricity: Basic Concepts and Phenomena:701.1 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Nonlinear Optics:741.1.1 ; Mechanics:931.1

ENGINEERING

Web of Science

1.Khalifa Univ, Dept Mech, POB 127788, Abu Dhabi, U Arab Emirates
2.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China
3.Politecn Torino, Dept Struct Geotech & Bldg Engn, Corso Duca Abruzzi, Turin, Italy

Viet, N. V.,Wang, Q.,Carpinteri, A.. Development of an ocean wave energy harvester with a built-in frequency conversion function[J]. INTERNATIONAL JOURNAL OF ENERGY RESEARCH,2018,42(2):684-695.

Viet, N. V.,Wang, Q.,&Carpinteri, A..(2018).Development of an ocean wave energy harvester with a built-in frequency conversion function.INTERNATIONAL JOURNAL OF ENERGY RESEARCH,42(2),684-695.

Viet, N. V.,et al."Development of an ocean wave energy harvester with a built-in frequency conversion function".INTERNATIONAL JOURNAL OF ENERGY RESEARCH 42.2(2018):684-695.