Results 41 to 50 of about 1,646 (188)

Wake and Turbulence Analysis for Wind Turbine Layouts in an Island

E3S Web of Conferences, 2018
There is a big wind energy potential in supplying the power in an island and most of the islands are off-grid. Due to the limited area in island(s), there is need to find appropriate layout / location for wind turbines suited to the local wind conditions.
Amrender Singh Bachhal, Klaus Vogstad, Mohan Lal Kolhe, Abhijit Chougule, Hans George Beyer   +4 more
doaj   +1 more source

Effects of Camber of S‐Series Airfoils on Aerodynamic Performance, Entropy Generation Rate, Irreversibility, and Second Law Efficiency of Horizontal Axis Wind Turbines

Energy Science &Engineering, EarlyView.
Due to the depletion of fossil fuels, enhancing wind turbine efficiency is crucial. Utilizing airfoils with high lift‐to‐drag ratios significantly improves power generation by optimizing aerodynamic parameters. Furthermore, entropy generation analysis serves as an effective method for design optimization by minimizing energy losses and exergy ...
Mitra Yadegari
wiley   +1 more source

A New Study on the Effect of the Partial Wake Generated in a Wind Farm

Energies
In this article, we present an investigative study on the often-overlooked partial wake phenomenon in previous studies concerning wind farm configurations. A partial wake occurs when a portion of the actuator disk of a downstream wind turbine is affected
Said Zergane, Chouki Farsi, Salah Amroune, Souad Benkherbache, Noureddine Menasri   +4 more
doaj   +1 more source

Comparison of Different Driving Modes for the Wind Turbine Wake in Wind Tunnels

Energies, 2020
The wake of upstream wind turbine is known to affect the operation of downstream turbines and the overall efficiency of the wind farm. Wind tunnel experiments provide relevant information for understanding and modeling the wake and its dependency on the ...
Bingzheng Dou, Zhanpei Yang, Michele Guala, Timing Qu, Liping Lei, Pan Zeng   +5 more
doaj   +1 more source

Large eddy simulations of wind turbine wakes in typical complex topographies

Wind Energy, 2021
There is a need to clarify the coupling characteristics of terrain‐induced wind fields and wind turbine‐induced wake in wind farm micrositing. However, research investigating the effect of hill shape on this interaction is lacking.
Zhenqing Liu, Shengyu Lu, Takeshi Ishihara   +2 more
doaj   +1 more source

Research on complex wake interference of aligned rotors considering the precone variation of the upstream wind turbine

Frontiers in Marine Science, 2022
To understand the interaction wake effects of aligned horizontal-axis wind turbines, a refined and low-cost wake simulation framework is developed by combining the actuator line (AL) with a local dynamic Smagorinsky (LDS) model.
Yuquan Zhang, Renwei Ji, Ke Sun, Zhi Zhang, Yuan Zheng, Jisheng Zhang, Xuewei Zhang, Emmanuel Fernandez Rodriguez   +7 more
doaj   +1 more source

National Policy Coherence Counts for Reducing Inequality in Global Climate and Development Agendas

Sustainable Development, EarlyView.
ABSTRACT International institutions promote policy coherence as crucial to the effective and fair implementation of global sustainability agendas, though the evidence for its benefits is slim. We present here the first systematic cross‐country dataset on the consequences of national government efforts to promote policy coherence for vulnerable groups ...
Katherine Browne, Adis Dzebo, Zoha Shawoo, Mario Cardenas, Pierrick Chalaye, Alexia Faus Onbargi, Cassilde Muhoza, Patricia Nicdao, Nokwethaba Makhanya, Navam Niles, Priyatma Singh   +10 more
wiley   +1 more source

From dusk till dawn: ecoacoustic monitoring reveals wind energy impacts on roding Eurasian woodcock Scolopax rusticola

Wildlife Biology, EarlyView.
Renewable energy is vital for reducing carbon emissions and yet its infrastructure poses challenges to biodiversity. While the impacts of wind power on bats and raptors are well‐studied, the effects on elusive species remain largely unknown. The Eurasian woodcock Scolopax rusticola, a nocturnal forest bird, performs characteristic courtship flights at ...
Jan O. Engler, Michael Bokämper, Stefan Hannabach, Manuela Merling de Chapa, Lena Daum, Kostadin B. Georgiev, Simon Thorn   +6 more
wiley   +1 more source

Bursting Oscillation Characteristics and Improved AHODFC for DFIG and PMSG Combined Wind Farm

Energy Internet, EarlyView.
ABSTRACT Bursting oscillations occur in DFIG and PMSG combined wind farm under external disturbances and lead to the instability problems. To reveal the bursting oscillation characteristics and develop a suppression method, a fast‐slow dynamics analysis method and an improved adaptive high‐order differential feedback controller (AHODFC) based on ...
Kun Wang, Wei Chen, Jiangtao Li, Zhanhong Wei   +3 more
wiley   +1 more source

Wind Turbine Wake Characterization for Improvement of the Ainslie Eddy Viscosity Wake Model

Energies, 2018
This paper presents a modified version of the Ainslie eddy viscosity wake model and its accuracy by comparing it with selected exiting wake models and wind tunnel test results.
Hyungyu Kim, Kwansu Kim, Carlo Luigi Bottasso, Filippo Campagnolo, Insu Paek   +4 more
doaj   +1 more source