scholarly journals EXPERIMENTAL STUDY FOR WIND ENERGY HARVESTING BASED ON THE AEROELASTIC EXCITATION OF A SEMI-CIRCULAR CYLINDER

2020 ◽  
Author(s):  
MARINA G. LÓPEZ-ARIAS ◽  
FELIX NIETO ◽  
SANTIAGO HERNÁNDEZ
Keyword(s):  
Experimental Study ◽  
Energy Harvesting ◽  
Circular Cylinder ◽  
Wind Energy

Aerodynamic modification to a circular cylinder to enhance the piezoelectric wind energy harvesting

2016 ◽  
Vol 109 (19) ◽  
pp. 193902 ◽  
Author(s):  
Gang Hu ◽  
K. T. Tse ◽  
K. C. S. Kwok ◽  
Jie Song ◽  
Yuan Lyu
Keyword(s):  
Energy Harvesting ◽  
Circular Cylinder ◽  
Wind Energy

scholarly journals An Optimized Flutter-Driven Triboelectric Nanogenerator with a Low Cut-In Wind Speed

Micromachines ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 366
Author(s):  
Yang Xia ◽  
Yun Tian ◽  
Lanbin Zhang ◽  
Zhihao Ma ◽  
Huliang Dai ◽  
...  
Keyword(s):  
Power Generation ◽  
Wind Speed ◽  
Energy Harvesting ◽  
Wind Energy ◽  
Output Power ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Triboelectric Nanogenerator ◽  
Vibration Behavior ◽  
Air Speed

We present an optimized flutter-driven triboelectric nanogenerator (TENG) for wind energy harvesting. The vibration and power generation characteristics of this TENG are investigated in detail, and a low cut-in wind speed of 3.4 m/s is achieved. It is found that the air speed, the thickness and length of the membrane, and the distance between the electrode plates mainly determine the PTFE membrane’s vibration behavior and the performance of TENG. With the optimized value of the thickness and length of the membrane and the distance of the electrode plates, the peak open-circuit voltage and output power of TENG reach 297 V and 0.46 mW at a wind speed of 10 m/s. The energy generated by TENG can directly light up dozens of LEDs and keep a digital watch running continuously by charging a capacitor of 100 μF at a wind speed of 8 m/s.

scholarly journals Corrigendum to “Optimization of structural parameters for rotary freestanding-electret generators and wind energy harvesting” [Nano Energy 75 (2020) 104968]

Nano Energy ◽  
2021 ◽  
Vol 85 ◽  
pp. 105988
Author(s):  
Mingzhao Bi ◽  
Zibo Wu ◽  
Shiwen Wang ◽  
Zeyuan Cao ◽  
Yino Cheng ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Wind Energy ◽  
Structural Parameters

scholarly journals Practical Implementation of a Novel Wind Energy Harvesting Network

2012 ◽  
Vol 47 ◽  
pp. 961-964
Author(s):  
N.R. Harris ◽  
N.G. Grabham ◽  
J. Tudor ◽  
S.P. Beeby ◽  
N.M. White.
Keyword(s):  
Energy Harvesting ◽  
Wind Energy ◽  
Practical Implementation

Magnetic coupling and flextensional amplification mechanisms for high-robustness ambient wind energy harvesting

2019 ◽  
Vol 201 ◽  
pp. 112166 ◽  
Author(s):  
Lin-Chuan Zhao ◽  
Hong-Xiang Zou ◽  
Ge Yan ◽  
Feng-Rui Liu ◽  
Ting Tan ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Wind Energy ◽  
Magnetic Coupling ◽  
Ambient Wind

An arc-shaped piezoelectric generator for multi-directional wind energy harvesting

2015 ◽  
Vol 236 ◽  
pp. 173-179 ◽  
Author(s):  
Jiangxin Zhao ◽  
Jin Yang ◽  
Zhiwei Lin ◽  
Nian Zhao ◽  
Jun Liu ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Wind Energy ◽  
Piezoelectric Generator

Design and performance evaluation of vertical axis wind turbine for wind energy harvesting at railway

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Hashwini Lalchand Thadani ◽  
Fadia Dyni Zaaba ◽  
Muhammad Raimi Mohammad Shahrizal ◽  
Arjun Singh Jaj A. Jaspal Singh Jaj ◽  
Yun Ii Go
Keyword(s):  
Wind Speed ◽  
Energy Harvesting ◽  
Wind Energy ◽  
Wind Turbine ◽  
High Speed ◽  
Vertical Axis ◽  
Speed Ratio ◽  
Vertical Axis Wind Turbine ◽  
Modeling Tools ◽  
Content Type

PurposeThis paper aims to design an optimum vertical axis wind turbine (VAWT) and assess its techno-economic performance for wind energy harvesting at high-speed railway in Malaysia.Design/methodology/approachThis project adopted AutoCAD and ANSYS modeling tools to design and optimize the blade of the turbine. The site selected has a railway of 30 km with six stops. The vertical turbines are placed 1 m apart from each other considering the optimum tip speed ratio. The power produced and net present value had been analyzed to evaluate its techno-economic viability.FindingsComputational fluid dynamics (CFD) analysis of National Advisory Committee for Aeronautics (NACA) 0020 blade has been carried out. For a turbine with wind speed of 50 m/s and swept area of 8 m2, the power generated is 245 kW. For eight trains that operate for 19 h/day with an interval of 30 min in nonpeak hours and 15 min in peak hours, total energy generated is 66 MWh/day. The average cost saved by the train stations is RM 16.7 mil/year with battery charging capacity of 12 h/day.Originality/valueWind energy harvesting is not commonly used in Malaysia due to its low wind speed ranging from 1.5 to 4.5 m/s. Conventional wind turbine requires a minimum cut-in wind speed of 11 m/s to overcome the inertia and starts generating power. Hence, this paper proposes an optimum design of VAWT to harvest an unconventional untapped wind sources from railway. The research finding complements the alternate energy harvesting technologies which can serve as reference for countries which experienced similar geographic constraints.

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