Enhanced magnetic energy harvesting properties of magneto-mechano-electric generator by tailored geometry

2016 ◽  
Vol 109 (9) ◽  
pp. 093901 ◽  
Author(s):  
Venkateswarlu Annapureddy ◽  
Ha Young Lee ◽  
Woon-Ha Yoon ◽  
Hyun-Jae Woo ◽  
Ji-Hye Lee ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Magnetic Energy ◽  
Electric Generator

Design, analysis and prototyping of a magnetic energy-harvesting suspension for vehicles

2020 ◽  
Vol 29 (10) ◽  
pp. 105034
Author(s):  
Ran Zhou ◽  
Feng Sun ◽  
Mingyin Yan ◽  
Junjie Jin ◽  
Qiang Li ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Magnetic Energy ◽  
Design Analysis

Toward a Contactless Hydrokinetic Energy Harvester: A Computational Magnetic Field Estimation

2018 ◽  
Author(s):  
Georgios Tsakyridis ◽  
Nikolaos I. Xiros ◽  
Michael M. Bernitsas
Keyword(s):  
Magnetic Field ◽  
Energy Harvesting ◽  
Attitude Control ◽  
Magnetic Levitation ◽  
Magnetic Energy ◽  
Hydrodynamic Drag ◽  
Core Element ◽  
Hydrokinetic Energy ◽  
Ferromagnetic Core ◽  
The Magnetic Field

Magnetic levitation (maglev) concepts are applied to a variety of industries such as the automotive, aerospace, or energy in order to accomplish different tasks: suspension and propulsion in maglev trains, rocket propulsion and spacecraft attitude control, centrifuge of nuclear reactors. In this paper, maglev is implemented in environmentally friendly hydrokinetic energy harvesting to achieve contactless bearing, thus, minimizing friction and improving efficiency. Generally, maglev systems exhibit higher efficiency and reduced maintenance while providing longer lifetime and higher durability when appropriate engineering design and control are applied. A Flow Induced Oscillation (FIO) energy-harvesting converter is considered in this work. To minimize friction in the support of the cylinder in FIO (vortex induced vibrations and galloping) due to high hydrodynamic drag, a maglev system is proposed. In the proposed configuration, a ferromagnetic core (element 1), of known dimensions, is considered under the effects of an externally imposed magnetic field. A second ferromagnetic element, of smaller dimensions, is then placed adjacent to the previous considered core. This particular configuration results in a non-homogenous magnetic field for element 1, caused by dimensional disparity. Specifically, the magnetic flux does not follow a linear path from the ferromagnetic core to element 2. A general electromagnetic analysis is conducted to derive an analytical form for the magnetic field of element 1. Subsequent numerical simulation validates the obtained formula. This distinct expression for the magnetic field is valuable towards calculating the magnetic energy of this specific configuration, which is essential to the design of the FIO energy harvesting converter considered in this work.

A Magneto-Mechano-Electric Generator Based on Lead-Free Single-Crystal Fibers for Robust Scavenging of Ambient Magnetic Energy

2020 ◽  
Vol 16 (4) ◽  
pp. 369-375
Author(s):  
Sung Hoon Park ◽  
Ajeet Kumar ◽  
J. Kaarthik ◽  
Venkateswarlu Annapureddy ◽  
Jungho Ryu
Keyword(s):  
Single Crystal ◽  
Magnetic Energy ◽  
Lead Free ◽  
Electric Generator ◽  
Crystal Fibers
Sign in / Sign up

Export Citation Format

Share Document