Results 51 to 60 of about 182,554 (282)
Yantu gongcheng xuebao, 2019 Resonance occurs when the first natural frequency of wind turbines coincides with frequencies of the rotor rotation and blade passing, which may cause damage to wind turbines in serious conditions.
WANG Yue 1, 2, ZHANG Chen-rong 1,2
doaj +1 more source
Mehran University Research Journal of Engineering and Technology, 2021 Wind Farm Layout Optimization (WFLO) is essential to meet power demand and expenditures. In recent years, Wind Farm Optimization (WFO) has received much more attention.
Muhammad Rashid +2 more
doaj +1 more source
Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy
Advanced Engineering Materials, EarlyView.This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb +6 more
wiley +1 more source
Energy Science & Engineering, 2023 Wind power generation does not emit greenhouse gases or pollutants, but there are some carbon emissions from the manufacturing, transportation, operation, and waste disposal of wind turbines.
Zhi‐Yu Zhuo +2 more
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Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys
Advanced Engineering Materials, EarlyView.Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak +3 more
wiley +1 more source
Numerical Study of Vertical Axis Wind Turbine with Spoiler Based on Orthogonal Experiments [PDF]
Journal of Applied Fluid MechanicsThis paper investigated using spoilers to improve the aerodynamic characteristics of vertical-axis wind turbines. Taking the NACA0012 airfoil as the research object, the orthogonal experimental method design was employed to combine the parameters of the ...
Z. Hao, K. Chen, T. Su, Z. Zhao, Q. Wang
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, 1979 An overview of Alcoa's wind energy program is given with emphasis on the the development of a low cost, reliable Darrieus Vertical Axis Wind Turbine System.
Ai, D. K.
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Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites
Advanced Engineering Materials, EarlyView.Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter +9 more
wiley +1 more source
Atmosphere, 2022 The MOMENTA project combines in situ and remote sensing observations, wind tunnel experiments, and numerical modeling to improve the knowledge of wake structure in wind farms in order to model its impact on the wind turbines and to optimize wind farm ...
Sara Alaoui-Sosse +2 more
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An overview of wind turbine manufacturing experience in Turkey [PDF]
, 2011 While wind energy has been utilized by windmills for ages, 1970s oil crises was a turning point for many developed governments to initiate massive efforts to develop modern wind turbines. Starting from almost none in early 1980s, the installed wind power
Aksit, Mahmut Faruk +3 more
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