scholarly journals Enhancing the Triboelectric Nanogenerator Output by Micro Plasma Generation in a Micro-Cracked Surface Structure

2021 ◽  
Vol 11 (9) ◽  
pp. 4262
Author(s):  
Jinhyoung Park ◽  
Hanchul Cho ◽  
Yong-Seok Lee
Keyword(s):  
Energy Harvesting ◽  
Internet Of Things ◽  
Triboelectric Nanogenerator ◽  
Output Line ◽  
Plasma Generation ◽  
Harvesting Efficiency ◽  
Triboelectric Nanogenerators ◽  
Iot Devices ◽  
Energy Harvesting Efficiency ◽  
Triboelectric Generator

Energy harvesting, especially for powering low-power internet-of-things (IoT) devices, is gaining attention in recent years. Triboelectric nanogenerators have been studied to improve the output by applying a structure that can concentrate electrons on the surface of the generator materials. For enhancing the triboelectrification output, we herein focused on the power output line. A method for increasing the amount of electrons on the power lead by potential difference and their acceleration was studied. A rod was shaken by external vibrations; the accumulated charges were discharged in a manner similar to that of a lightning rod. Micro plasma was generated when the rod made contact with the mating micro-cracked surface innumerable times. The micro-cracked surface was fabricated with a diamond tip moving horizontally to the surface. As the resistance of the micro plasma was close to zero, the amount of electron movement was instantaneously accelerated. This type of triboelectric generator can be fabricated in the form of an electric box. By using this triboelectric power amplifier, voltage can be amplified 2 to 3 times, and the current can be amplified 10 to 15 times; thus, enhanced energy harvesting efficiency is attained.

scholarly journals Wake-foil interactions and energy harvesting efficiency in tandem oscillating foils

2021 ◽  
Vol 6 (7) ◽  
Author(s):  
Bernardo Luiz R. Ribeiro ◽  
Yunxing Su ◽  
Quentin Guillaumin ◽  
Kenneth S. Breuer ◽  
Jennifer A. Franck
Keyword(s):  
Energy Harvesting ◽  
Harvesting Efficiency ◽  
Energy Harvesting Efficiency ◽  
Oscillating Foils

scholarly journals Stoppers Energy Harvesting Efficiency Enhancement via Optimal Linear Controller

2016 ◽  
Author(s):  
Douglas Da Costa Ferreira ◽  
Fábio Roberto Chavarette ◽  
Jean-Marc Stephane Lafay ◽  
Paulo Rogerio Novak ◽  
Samuel Pagotto ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Efficiency Enhancement ◽  
Linear Controller ◽  
Optimal Linear ◽  
Harvesting Efficiency ◽  
Energy Harvesting Efficiency

Energy Harvesting Efficiency of III–V Multi-Junction Concentrator Solar Cells under Realistic Spectral Conditions

2010 ◽  
Author(s):  
S. P. Philipps ◽  
G. Peharz ◽  
R. Hoheisel ◽  
T. Hornung ◽  
N. M. Al-Abbadi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Harvesting ◽  
Harvesting Efficiency ◽  
Energy Harvesting Efficiency

scholarly journals Analytical research on energy harvesting systems for fluidic soft actuators

2018 ◽  
Vol 15 (1) ◽  
pp. 172988141875587 ◽  
Author(s):  
Tao Wang ◽  
Wei Song ◽  
Shiqiang Zhu
Keyword(s):  
Energy Harvesting ◽  
Dynamic Models ◽  
Original System ◽  
Control Performance ◽  
Harvesting Systems ◽  
Energy Harvesting System ◽  
Analytical Research ◽  
Harvesting Efficiency ◽  
Energy Harvesting Efficiency ◽  
Soft Actuators

Energy consumption has significant influence on the working time of soft robots in mobile applications. Fluidic soft actuators usually release pressurized fluid to environment in retraction motion, resulting in dissipation of considerable energy, especially when the actuators are operated frequently. This article mainly explores the potential and approaches of harvesting the energy released from the actuators. First, the strain energy and pressurized energy stored in fluidic soft actuators are modeled based on elastic mechanics. Then, taking soft fiber-reinforced bending actuators as case study, the stored energy is calculated and its parametric characteristics are presented. Finally, two energy harvesting schematics as well as dynamic models are proposed and evaluated using numerical analysis. The results show that the control performance of the energy harvesting system becomes worse because of increased damping effect and its energy harvesting efficiency is only 14.2% due to the losses of energy conversion. The energy harvesting system in pneumatic form is a little more complex. However, its control performance is close to the original system and its energy harvesting efficiency reaches about 44.1%.

Improving energy harvesting efficiency of dye sensitized solar cell by using cobalt-rGO co-doped TiO2 photoanode

2022 ◽  
Vol 891 ◽  
pp. 162040
Author(s):  
Ikhtiar Ahmad ◽  
Rashida Jafer ◽  
Syed Mustansar Abbas ◽  
Nisar Ahmad ◽  
Ata-ur-Rehman ◽  
...  
Keyword(s):  
Solar Cell ◽  
Energy Harvesting ◽  
Dye Sensitized Solar Cell ◽  
Doped Tio2 ◽  
Dye Sensitized ◽  
Harvesting Efficiency ◽  
Energy Harvesting Efficiency ◽  
Co Doped ◽  
Tio2 Photoanode

Energy Harvesting Methods for Internet of Things

2016 ◽  
pp. 51-70 ◽  
Author(s):  
Vasaki Ponnusamy ◽  
Yen Pei Tay ◽  
Lam Hong Lee ◽  
Tang Jung Low ◽  
Cheah Wai Zhao
Keyword(s):  
Energy Harvesting ◽  
Internet Of Things ◽  
Research Area ◽  
Energy Scavenging ◽  
Distributed Data ◽  
Full Spectrum ◽  
Current Application ◽  
Future Design ◽  
Iot Devices ◽  
New Research

Internet of Things (IoT) has becoming a central theme in current technology trend whereby objects, people or even animals and plants can exchange information over the Internet. IoT can be referred as a network of interconnected devices such as wearables, sensors and implantables, that has the ability to sense, interact and make collective decisions autonomously. In short, IoT enables a full spectrum of machine-to-machine communications equipped with distributed data collection capabilities and connected through the cloud to facilitate centralized data analysis. Despite its great potential, the reliability of IoT devices is impeded with limited energy supply if these devices were to deploy particularly in energy-scarced locations or where no human intervention is possible. The best possible deployment of IoT technology is directed to cater for unattended situations like structural or environmental health monitoring. This opens up a new research area in IoT energy efficiency domain. A possible alternative to address such energy constraint is to look into re-generating power of IoT devices or more precisely known as energy harvesting or energy scavenging. This chapter presents the review of various energy harvesting mechanisms, current application of energy harvesting in IoT domain and its future design challenges.

Design and Simulation Analysis of Vibration Energy Harvesting System Based on ADAMS

2019 ◽  
Author(s):  
Ziheng Zhu ◽  
Lin Xu ◽  
Mohamed A. A. Abdelkareem ◽  
Junyi Zou ◽  
Jia Mi
Keyword(s):  
Energy Harvesting ◽  
Vibration Energy ◽  
Bench Test ◽  
Test Results ◽  
Human Beings ◽  
Vibration Energy Harvesting ◽  
Wide Range ◽  
Harvesting Efficiency ◽  
Simulation Results ◽  
Energy Harvesting Efficiency

Abstract With the recent energy crisis, the new energy harvesting technologies have become one of the hot spots in engineering academic research and industrial applications. By its wide range of application fields, vibration energy harvesting technologies have been gradually developed and utilized in which an efficient and stable harvester technology is one of the recent key problems. In order to improve energy harvesting efficiency and reduce energy loss caused by motor inertial commutation, many mechanical structures or hydraulic structures that convert reciprocating vibration energy into single direction rotation of motor are proposed. Although these methods can improve energy harvesting efficiency, they can have negative effects in some cases, especially in the case of vibration energy harvesting from human beings. This paper proposes a vibration harvesting mechanism with mechanical rectification filter function applied to backpack. The prototype model of the system was established in SolidWorks and imported into ADAMS. Thereafter, dynamic analyses of mechanical rectification filtering characteristics and meshing characteristics of one-way clutch were simulated in ADAMS. Based on ADAMS, parametric design analysis and its influence on the mechanical rectification characteristics were investigated. The simulation results were validated by bench test results. Simulation results is done by ADAMS and the results match well with bench test results.

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