scholarly journals Self-sustaining super car

2015 ◽  
Vol 1 (3) ◽  
pp. 132
Author(s):  
Dr. Uthayakumar ◽  
Praveen Ilango ◽  
Meiyappan A N ◽  
Rama Nathan ◽  
Naveen Kumar J ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Materials ◽  
Sustainable Energy ◽  
Production Capacity ◽  
Future Generations ◽  
Commercial Vehicles ◽  
Piezoelectric Elements ◽  
Side Walls ◽  
Increasing Demand ◽  
Materials Used

There is an ever increasing demand for energy due to the growth of population across the world. This scenario necessitates alternative, efficient and sustainable energy sources to serve the current needs, without affecting abilities to meet future generations needs. Piezoelectricity is a widely researched sustainable energy source. Various forms of piezoelectric materials have been used to harvest the energy from vibration, repetitive strikes and bending of structures. This paper discusses different piezoelectric materials used in tires of commercial vehicles to harvest energy that can be used to charge batteries to power the vehicle and its electric sensors. Different techniques of energy harvesting are explored using the highly bendable piezoelectric elements including PVDF and PZT. The energy harvesting relies on the deformation of tires tread-walls and side-walls when the vehicles weight acts on it. The adopted methods are compared to analyse their effectiveness in terms of power production capacity.

Dynamics of symmetric and asymmetric potential well-based piezoelectric harvesters: A comprehensive review

2020 ◽  
pp. 1045389X2097829
Author(s):  
Abhijeet Madhukar Giri ◽  
Shaikh Faruque Ali ◽  
Arunachalakasi Arockiarajan
Keyword(s):  
Energy Harvesting ◽  
Linear Models ◽  
Piezoelectric Materials ◽  
Sensor Nodes ◽  
Potential Well ◽  
Wireless Sensor Nodes ◽  
Generalized Model ◽  
Future Challenges ◽  
Materials Used ◽  
Tuning Methods

Small and micro-scale energy harvesting is an essential and viable option for the powering of portable and maintenance free electronic devices, wireless sensor nodes, and similar applications. In this regard, piezoelectric harvesters have presented promising outcomes. This article provides a sequential, comprehensive, and informative survey of potential well based models and studies related to piezoelectric harvesters (PEH). Piezoelectric materials used for energy harvesting are discussed briefly, following which a non-dimensional generalized model is derived to set the discussion on a common platform. Dynamics of various potential well configurations are presented using the generalized model before discussing specific models and related studies. The survey is classified into symmetric and asymmetric potential well categories. Under the symmetric head, lumped and distributed parameter linear models and tuning methods for improving the broadband response are discussed. Subsequently, studies related to nonlinear mono-stable, bi-stable, and tri-stable potentials showing interwell, multi-periodic and chaotic oscillations with improved broadband response are discussed. The asymmetric section studies the influence of asymmetries on the performance of the mono-stable, bi-stable, and tri-stable configurations. Few other configurations outside the cantilever type PEH were mentioned, realizing the widespread research in this field. Important observations and future challenges for performance improvement are also discussed.

scholarly journals Comparative Analysis of Modelling for Piezoelectric Energy Harvesting Solutions

2021 ◽  
Vol 3 (2) ◽  
pp. 138-153
Author(s):  
Jennifer S Raj ◽  
G Ranganathan
Keyword(s):  
Energy Harvesting ◽  
Alternative Energy ◽  
Piezoelectric Materials ◽  
Mechanical Energy ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Piezoelectric Energy ◽  
Research Article ◽  
Piezoelectric Elements ◽  
Harvesting Techniques

Due to the global energy crisis and environmental degradation, largely as a result of the increased usage of non-renewable energy sources, researchers have become more interested in exploring alternative energy systems, which may harvest energy from natural sources. This research article provides a comparison between various modeling of piezoelectric elements in terms of power generation for energy harvesting solutions. The energy harvesting can be computed and calculated based on piezoelectric materials and modeling for the specific application. The most common type of environmental energy that may be collected and transformed into electricity for several purposes is Piezoelectric transduction, which is more effective, compared to other mechanical energy harvesting techniques, including electrostatic, electromagnetic, and triboelectric transduction, due to their high electromechanical connection factor and piezoelectric coefficients. As a result of this research, scientists are highly interested in piezoelectric energy collection.

Energy Harvesting Using Piezoelectric Materials on Microcantilevr Structure

2012 ◽  
Vol 2 (5) ◽  
pp. 252-255
Author(s):  
Rudresha K J Rudresha K J ◽  
◽  
Girisha G K Girisha G K
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Materials

scholarly journals Particle Size Effect of Lanthanum-Modified Bismuth Titanate Ceramics on Ferroelectric Effect for Energy Harvesting

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Sangmo Kim ◽  
Thi My Huyen Nguyen ◽  
Rui He ◽  
Chung Wung Bark
Keyword(s):  
Particle Size ◽  
Energy Harvesting ◽  
High Speed ◽  
High Performance ◽  
Bismuth Titanate ◽  
Vinylidene Fluoride ◽  
Piezoelectric Materials ◽  
Renewable Energy Sources ◽  
Particle Size Effect ◽  
Ferroelectric Materials

AbstractPiezoelectric nanogenerators (PNGs) have been studied as renewable energy sources. PNGs consisting of organic piezoelectric materials such as poly(vinylidene fluoride) (PVDF) containing oxide complex powder have attracted much attention for their stretchable and high-performance energy conversion. In this study, we prepared a PNG combined with PVDF and lanthanum-modified bismuth titanate (Bi4−XLaXTi3O12, BLT) ceramics as representative ferroelectric materials. The inserted BLT powder was treated by high-speed ball milling and its particle size reduced to the nanoscale. We also investigated the effect of particle size on the energy-harvesting performance of PNG without polling. As a result, nano-sized powder has a much larger surface area than micro-sized powder and is uniformly distributed inside the PNG. Moreover, nano-sized powder-mixed PNG generated higher power energy (> 4 times) than the PNG inserted micro-sized powder.

scholarly journals Piezoelectric Materials for Energy Harvesting and Sensing Applications: Roadmap for Future Smart Materials

2021 ◽  
pp. 2100864
Author(s):  
Susmriti Das Mahapatra ◽  
Preetam Chandan Mohapatra ◽  
Adrianus Indrat Aria ◽  
Graham Christie ◽  
Yogendra Kumar Mishra ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Smart Materials ◽  
Piezoelectric Materials ◽  
Sensing Applications

Multi-Stable Magnetic Spring-Based Energy Harvester Subject to Harmonic Excitation: Comparative Study and Experimental Evaluation

2018 ◽  
Author(s):  
Hieu Nguyen ◽  
Hamzeh Bardaweel
Keyword(s):  
Energy Harvesting ◽  
Kinetic Energy ◽  
Comparative Study ◽  
Experimental Evaluation ◽  
Chaotic Motion ◽  
Energy Harvester ◽  
Electric Energy ◽  
Harmonic Excitation ◽  
Jump Frequency ◽  
Piezoelectric Elements

The work presented here investigates a unique design platform for multi-stable energy harvesting using only interaction between magnets. A solid cylindrical magnet is levitated between two stationary magnets. Peripheral magnets are positioned around the casing of the energy harvester to create multiple stable positions. Upon external vibration, kinetic energy is converted into electric energy that is extracted using a coil wrapped around the casing of the harvester. A prototype of the multi-stable energy harvester is fabricated. Monostable and bistable configurations are demonstrated and fully characterized in static and dynamic modes. Compared to traditional multi-stable designs the harvester introduced in this work is compact, occupies less volume, and does not require complex circuitry normally needed for multi-stable harvesters involving piezoelectric elements. At 2.5g [m/s2], results from experiment show that the bistable harvester does not outperform the monostable harvester. At this level of acceleration, the bistable harvester exhibits intrawell motion away from jump frequency. Chaotic motion is observed in the bistable harvester when excited close to jump frequency. Interwell motion that yields high displacement amplitudes and velocities is absent at this acceleration.

scholarly journals Modeling of Piezoelectric Energy Harvesting from Freely Oscillating Cylinders in Water Flow

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Min Zhang ◽  
YingZheng Liu ◽  
ZhaoMin Cao
Keyword(s):  
Energy Harvesting ◽  
Free Stream ◽  
Piezoelectric Materials ◽  
Load Resistance ◽  
Stream Velocity ◽  
Piezoelectric Energy Harvesting ◽  
Vibratory System ◽  
System Parameters ◽  
Piezoelectric Energy ◽  
Vortex Induced Vibrations

A concept of energy harvesting from vortex-induced vibrations of a rigid circular cylinder with two piezoelectric beams attached is investigated. The variations of the power levels with the free stream velocity are determined. A mathematical approach including the coupled cylinder motion and harvested voltage is presented. The effects of the load resistance, piezoelectric materials, and circuit combined on the natural frequency and damping of the vibratory system are determined by performing a linear analysis. The dynamic response of the cylinder and harvested energy are investigated. The results show that the harvested level in SS and SP&PS modes is the same with different values of load resistance. For four different system parameters, the results show that the bigger size of cylinder with PZT beams can obtain the higher harvested power.

Research on commercial vehicle sound quality objective evaluation

2021 ◽  
Vol 263 (2) ◽  
pp. 4526-4531
Author(s):  
Kun Qian ◽  
Zhichao Hou ◽  
Ruixue Liu ◽  
Dengke Sun ◽  
Rongkang Luo
Keyword(s):  
Evaluation Method ◽  
Commercial Vehicle ◽  
Objective Evaluation ◽  
Sound Quality ◽  
Subjective Perception ◽  
Commercial Vehicles ◽  
Comfort Evaluation ◽  
Quality Design ◽  
Increasing Demand ◽  
And Control

With the increasing demand of users for the acoustical comfort of commercial vehicles, the sound quality has become one of the important indicators of comfort evaluation. The research focuses on the objective evaluation method of the subjective perception of the sound quality in commercial vehicle. The interior noises of commercial vehicle with an inline six diesel engine are measured. The five psychoacoustic parameters (loudness, roughness, sharpness, fluctuation strength, tonality and articulation index) are applied to the evaluation and analysis of the interior noises of the commercial vehicle. Using psychoacoustic parameters to evaluate the noises in commercial vehicle, it is of great significance for the analysis and control of the noises in commercial vehicle. The research results provide a theoretical basis for guiding the sound quality design and development of commercial vehicles.

An Inverter can be Used in Hybrid Wind-Solar Grid-Connected Power System

2012 ◽  
Vol 512-515 ◽  
pp. 70-73 ◽  
Author(s):  
Yang Tian ◽  
Ru Cheng Han ◽  
Chen Li
Keyword(s):  
Global Warming ◽  
Power System ◽  
Sustainable Energy ◽  
Future Generations ◽  
Energy Sources ◽  
Grid Security ◽  
Operational Analysis ◽  
Harmonic Content ◽  
The Earth ◽  
Simulation Results

With increasing concern of global warming, many are looking at sustainable energy solutions to protect the earth for the future generations.. This paper presents a new inverter which can be used in hybrid wind/photovoltaic grid-connected power system. This inverter allows the two sources to work separately or simultaneously depending on the availability of the energy sources. Harmonic content is detrimental for the Grid security. The introduction of the inverter can effectively reduce the harmonics generated by the system. Operational analysis of the proposed system will be discussed in this paper. Simulation results are given to highlight the merits of the proposed inverter.

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