scholarly journals Hybrid Energy Harvesting using Piezoelectric Materials,Automatic Rotational Solar Panel, Vertical Axis Wind Turbine

2012 ◽  
Vol 38 ◽  
pp. 843-852 ◽  
Author(s):  
S. Sathiyamoorthy ◽  
N. Bharathi
Keyword(s):  
Energy Harvesting ◽  
Wind Turbine ◽  
Piezoelectric Materials ◽  
Vertical Axis ◽  
Solar Panel ◽  
Vertical Axis Wind Turbine ◽  
Hybrid Energy ◽  
Hybrid Energy Harvesting

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.

scholarly journals Prototype Hybrid Power Plant of Solar Panel and Vertical Wind Turbine as a Provider of Alternative Electrical Energy at Kenjeran Beach Surabaya

2020 ◽  
Vol 2 (3) ◽  
pp. 108-113
Author(s):  
Anggara Trisna Nugraha ◽  
Dadang Priyambodo
Keyword(s):  
Solar Energy ◽  
Wind Energy ◽  
Wind Turbine ◽  
Electrical Energy ◽  
Vertical Axis ◽  
Solar Panel ◽  
Vertical Axis Wind Turbine ◽  
Energy Potential ◽  
Tropical Country ◽  
Wind Speeds

Indonesia, which is a tropical country, has a very large potential for solar energy because of its area that stretches across the equator, with a radiation magnitude of 4.80 kWh / m2 / day or equivalent to 112,000 GWp. On the other hand, the earth receives solar power of 1.74 x 1017 W / hour and about 1-2% of it is converted into wind energy. However, from the total energy potential, Indonesia has only utilized around 10 MWp for solar energy and not much different, wind energy, whose utilization is planned to reach 250 MW in 2025, has only been utilized around 1 MW of the total existing potential. With this potential, to be able to supply additional power and help save energy for existing facilities in the building, a Prototype of Solar Panel Hybird and Vertical Axis Wind Turbine was created. The design of this prototype is a combination of savonious type turbines and solar panels, where the use of this type of turbine is because it can rotate at low wind speeds (low wind velocity) and its construction is very simple.

Feasibility of Highway Energy Harvesting Using a Vertical Axis Wind Turbine

2018 ◽  
Vol 115 (2) ◽  
pp. 61-74 ◽  
Author(s):  
Ehab Hussein Bani-Hani ◽  
Ahmad Sedaghat ◽  
Mashael AL-Shemmary ◽  
Adelah Hussain ◽  
Abdulmalek Alshaieb ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Wind Turbine ◽  
Vertical Axis ◽  
Vertical Axis Wind Turbine

Hybrid Energy Harvesting Using Electroactive Polymers Combined with Piezoelectric Materials

2014 ◽  
Vol 96 ◽  
pp. 117-123 ◽  
Author(s):  
Alexandru Cornogolub ◽  
Pierre Jean Cottinet ◽  
Lionel Petit
Keyword(s):  
Energy Harvesting ◽  
Electric Field ◽  
Large Deformations ◽  
Piezoelectric Effect ◽  
Piezoelectric Materials ◽  
Electroactive Polymers ◽  
Hybrid Energy ◽  
Energy Harvesters ◽  
High Elasticity ◽  
Hybrid Energy Harvesting

Electroactive polymers (EAP) are relatively soft and flexible materials, easy to integrate and able to undergo large deformations by applying an electric field (usually some 10 V/μm). This coupling between strain and electric field (quadratic by nature) as well as particular mechanical properties have already been used advantageously to design actuators. As energy harvesters, EAP have also shown good abilities by providing energy densities up to 0.4 J/g/cycle (generator integrated in a shoe). Moreover, they present some advantages over other techniques as electromagnetic or piezoelectric as they have low resonance frequency response and high elasticity which enable them to be used in situations where large displacements are available. The main drawback of EAP as energy harvesters is that they don't experience direct coupling between strain and electric field, such as the piezoelectric effect. It is therefore essential to use an external electrical polarization source in order to create energy cycles induced by the EAP capacitance variations when it is subject to external stress. The goal of this work is to combine the EAP and piezoelectric materials using the advantages of both, for a hybrid energy harvesting. Different possible configurations and their performances are studied and a comparison with existing techniques is made.

scholarly journals HYBRID POWER GENERATION SYSTEM USING VERTICAL AXIS WIND TURBINE AND SOLAR PANEL.

2017 ◽  
Vol 5 (4) ◽  
pp. 167-173 ◽  
Author(s):  
Chetan Sonawane ◽  
◽  
Manav Velani ◽  
Akash Singh ◽  
Vikaskumar Tripathi. ◽  
...  
Keyword(s):  
Power Generation ◽  
Wind Turbine ◽  
Vertical Axis ◽  
Solar Panel ◽  
Vertical Axis Wind Turbine ◽  
Generation System ◽  
Hybrid Power ◽  
Power Generation System

ENERGY HARVESTING FROM COOLING TOWER BY VERTICAL AXIS WIND TURBINE (VAWT)

2015 ◽  
Vol 76 (5) ◽  
Author(s):  
Ahmad Azizan Abd Rahman ◽  
Nor Afifah Yahaya ◽  
Rosnadiah Bahsan ◽  
Umi Kalsom Ahmad
Keyword(s):  
Wind Speed ◽  
Energy Harvesting ◽  
Wind Turbine ◽  
Cooling Tower ◽  
Guide Vane ◽  
Vertical Axis ◽  
Vertical Axis Wind Turbine ◽  
Innovative Idea ◽  
Wasted Energy ◽  
Suitable Location

In general, Malaysia is not a suitable location to harvest energy from wind. This is because Malaysia’s mean annual wind speed is low (less than 4 m/s) and inconsistent throughout the year. However, exhaust air systems which are usually installed in commercial buildings creates a uniform and consistent wind speed. Therefore, this provides a suitable place to harness wind energy. In this study, an innovative idea by harnessing wasted energy from the cooling tower with vertical axis wind turbine (VAWT) has been done. The VAWT was equipped with a guide-vane to increase the inlet wind speed and an enclosure to avoid the wind coming from the opposite direction. The result shows that this system was capable of generating electricity by approximately 0.0081 W.

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