Scavenging Wind Energy From Fluttering Membranes With Piezoelectric Materials

2012 ◽  
Author(s):  
Edwar Romero ◽  
Visvanatha Sundararajan ◽  
Nellie Bonilla ◽  
Christian Martinez ◽  
Amilcar Rincon
Keyword(s):  
Wind Energy ◽  
Piezoelectric Material ◽  
Large Scale ◽  
Piezoelectric Materials ◽  
Energy Generation ◽  
Small Scale ◽  
Wind Speeds ◽  
Wind Energy Generation ◽  
Aeroelastic Flutter ◽  
Working Principle

Although wind power is a highly researched area for large scale energy production, there are also opportunities for small scale applications. The present investigation proposes a fluttering membrane with flexible piezoelectric material for wind energy generation. The working principle of this approach is based on aeroelastic flutter using a MFC piezoelectric material for energy harvesting. It has been observed that the addition of flaps at the trailing edge has the advantage to decrease the critical speed at which fluttering occurs. This allows energy generation at lower wind speeds. The addition of the flaps decreased the fluttering speed from 14.8mph to 7mph. An average voltage output as high as 232mV was obtained, while a power output of 65.5μW was found at 17.5mph.

scholarly journals Higher Wind: Highlighted Expansion Opportunities to Repower Wind Energy

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7716
Author(s):  
Francisco Haces-Fernandez
Keyword(s):  
Wind Energy ◽  
Wind Farm ◽  
Wind Farms ◽  
Energy Generation ◽  
The United States ◽  
Wind Speeds ◽  
Wind Energy Generation ◽  
Novel Method ◽  
Renewable Energy Generation ◽  
Near Future

Decarbonizing the world economy, before the most damaging effects of climate change become irreversible, requires substantially increasing renewable energy generation in the near future. However, this may be challenging in mature wind energy markets, where many advantageous wind locations are already engaged by older wind farms, potentially generating suboptimal wind harvesting. This research developed a novel method to systematically analyze diverse factors to determine the level of maturity of wind markets and evaluate the adequacy of wind farm repowering at regional and individual levels. The approach was applied to wind markets in the United States (U.S.), in which several states were identified as having diverse levels of maturity. Results obtained from case studies in Texas indicated a consequential number of wind farms that have reached their twenty-year end-of-life term and earlier obsolescence levels. The proposed approach aided in determining wind farms that may benefit from total or partial repowering. The method indicated that total repowering of selected installations would significantly increase overall wind energy generation, considering that these older installations have access to some of the best wind speeds, infrastructure and areas to grow. The proposed method can be applied to different world wind markets.

scholarly journals Electricity Production from Wind Energy By Piezoelectric Material

2019 ◽  
Vol 8 (1) ◽  
pp. 41 ◽  
Author(s):  
İkram Büyükkeskin ◽  
Sezai Alper Tekin ◽  
Seyfettin Gürel ◽  
Mustafa Serdar Genç
Keyword(s):  
Wind Energy ◽  
Piezoelectric Material ◽  
Energy Demand ◽  
Energy Production ◽  
Piezoelectric Materials ◽  
Promising Method ◽  
Electricity Production ◽  
Wind Speeds ◽  
High Turbulence ◽  
Set Up

In recent years, the energy demand has increased, and alternative way of energy production methods are proposed to deal with this phenomenon by scholars. One of the most promising method is piezoelectric materials. These materials can be used for energy production with improving their efficiencies. This work is made with the guidance of one project which aimed to electricity production form wind energy. This method with one prototype is investigated. Two different wind stalk structures are produced with 3-D Printer. These different structures are set up in wind tunnel and it is experimented under different wind speeds and high turbulence flows. As a result, a circular and four-corner wind stalk structures are investigated for low and high turbulence flows in several wind speeds.  To conclude, the produced energy is too small for the systems in market because there are many types of piezoelectric materials for various applications and the problems due to measurement devices. However, piezoelectric materials can be better alternative for classical wind turbines in turbulence flow areas. Therefore, the electricity production from piezoelectric material will be promising method in the future with its advantages.© 2019. CBIORE-IJRED. All rights reservedArticle History: Received May 15th 2018; Received in revised form September 14th 2018; Accepted January 5th 2019; Available onlineHow to Cite This Article: Buyukkseskin, I., Tekin, S. A., Gurel, S., Genc, M S. (2019) Electricity Production from Wind Energy By Piezoelectric Material. International Journal of Renewable Energy Develeopment, 8(1), 41-46.https://doi.org/10.14710/ijred.8.1.41-46

scholarly journals The Application of Small-Scale and Large-Scale Wind Turbines in Kerman, Iran; A Case Study

2021 ◽  
Vol 15 ◽  
pp. 124-131
Author(s):  
Ighball Baniasad Askari ◽  
Lina Baniasad Askari ◽  
Mohammad Mehdi Kaykhah
Keyword(s):  
Wind Energy ◽  
Wind Turbines ◽  
Large Scale ◽  
Small Scale ◽  
Energy Potential ◽  
Wind Speeds ◽  
Wind Energy Potential ◽  
Wind Characteristics ◽  
Technical Assessment

Wind data collected of the three synoptic sites for the period of Jul 2006 to Jun 2008 at the height of 40 m has been used to study the wind characteristics, monthly and annual wind energy potential for three agricultural districts in Kerman ( 30°15/N, 56°58/E ), Iran. Two statistical methods (Meteorological and Weibull) have been applied to determine the wind characteristics. Wind energy density, mean wind speeds and wind speed directions have been investigated. A technical assessment has been done and the electricity generation from five different wind turbines having capacity of (26 kW, 100 kW, 300 kW, 600 kW and 660 kW) has been calculated. The results show that all the locations studied are not suitable for electric wind application in a large-scale.

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