Modeling and optimization of energy harvesting-systems under non-ideal operating temperatures with regard to availability of power-supply and reduction of environmental impacts

2011 ◽  
Author(s):  
Stephan Benecke ◽  
Andreas Middendorf ◽  
Nils F. Nissen ◽  
Klaus-Dieter Lang
Keyword(s):  
Energy Harvesting ◽  
Environmental Impacts ◽  
Power Supply ◽  
Modeling And Optimization ◽  
Harvesting Systems ◽  
Operating Temperatures

scholarly journals PIEZOELECTRIC SYSTEMS AS AN ALTERNATIVE ENERGY SOURCE / PJEZOELEKTRINIŲ ENERGIJOS SURINKIMO SISTEMŲ APŽVALGA

2015 ◽  
Vol 6 (6) ◽  
pp. 676-681
Author(s):  
Andrius Čeponis ◽  
Dalius Mažeika
Keyword(s):  
Energy Harvesting ◽  
Power Density ◽  
Power Supply ◽  
Alternative Energy ◽  
Piezoelectric Energy Harvesting ◽  
Alternative Energy Source ◽  
Piezoelectric Energy ◽  
Problems And Solutions ◽  
Harvesting Systems ◽  
Low Power Electronics

The article gives an overview of the problems and solutions related to energy harvesting systems used for power supply of low power electronics systems. Power density is the main parameter describing the efficiency of energy harvesting systems. Piezoelectric energy harvesting systems demonstrate a high value of power density, and therefore the article presents an overview of piezoelectric energy harvesting systems and their components. Also, a summary of the terms that affect the efficiency of piezoelectric energy harvesting systems has been presented. Straipsnyje apžvelgiamos problemos ir sprendimai, susiję su elektrinės energijos tiekimu mažos galios elektronikos sistemoms, taikant energijos surinkimo iš aplinkos technologijas. Vienas iš pagrindinių energijos surinkimo sistemas apibūdinančių parametrų yra galios tankis. Pjezoelektrinė energijos surinkimo technologija pasižymi vienu iš didžiausių galios tankiu, todėl straipsnyje išsamiai nagrinėjami pjezoelektriniai kinetinės energijos keitikliai, apžvelgiamos keitiklių konstrukcijos, jų sudedamosios dalys, išskiriamos technologinės sąlygos, darančios įtaką keitiklių efektyvumui.

Analysis of magneto rheological elastomers for energy harvesting systems

2020 ◽  
Vol 64 (1-4) ◽  
pp. 439-446
Author(s):  
Gildas Diguet ◽  
Gael Sebald ◽  
Masami Nakano ◽  
Mickaël Lallart ◽  
Jean-Yves Cavaillé
Keyword(s):  
Magnetic Field ◽  
Energy Harvesting ◽  
Shear Strain ◽  
Magnetic Induction ◽  
Magnetic Particles ◽  
Homogeneous Magnetic Field ◽  
Electrical Signal ◽  
Harvesting Systems ◽  
Dc Bias ◽  
Magneto Rheological

Magneto Rheological Elastomers (MREs) are composite materials based on an elastomer filled by magnetic particles. Anisotropic MRE can be easily manufactured by curing the material under homogeneous magnetic field which creates column of particles. The magnetic and elastic properties are actually coupled making these MREs suitable for energy conversion. From these remarkable properties, an energy harvesting device is considered through the application of a DC bias magnetic induction on two MREs as a metal piece is applying an AC shear strain on them. Such strain therefore changes the permeabilities of the elastomers, hence generating an AC magnetic induction which can be converted into AC electrical signal with the help of a coil. The device is simulated with a Finite Element Method software to examine the effect of the MRE parameters, the DC bias magnetic induction and applied shear strain (amplitude and frequency) on the resulting electrical signal.

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