Results 21 to 30 of about 15,562 (264)
MATEC Web of Conferences, 2015 Because of the randomness and fluctuation of wind energy, as well as the impact of strongly nonlinear characteristic of variable speed constant frequency (VSCF) wind power generation system with doubly fed induction generators (DFIG), traditional active ...
Guo Jiuwang, Liu Xingjie, Wei Wang
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BMJ, 2012 Seems to affect health adversely and an independent review of evidence is needed The evidence for adequate sleep as a prerequisite for human health, particularly child health, is overwhelming. Governments have recently paid much attention to the effects of environmental noise on sleep duration and quality, and to how to reduce such noise.1 However ...
Hanning, C.D., Evans, Alun
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Clarification of influences of inflow conditions on wake of horizontal axis wind turbine
Nihon Kikai Gakkai ronbunshu, 2015 In recent years, wind turbines are introduced in wind farms in which some wind turbines are concentrated. When wind turbines are built in contiguity with each other in wind farms, the flow passing through a wind turbine, which is called wake, may flow ...
Manhae HAN +4 more
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Blockage effects in wind farms
Wind Energy, 2020 An experimental study of wind farm blockage has been performed to quantify the velocity decrease that the first row of a wind farm experiences due to the presence of the other turbines downstream.
Antonio Segalini, Jan‐Åke Dahlberg
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Advanced Engineering Materials, EarlyView.A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm +3 more
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Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
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A Modeling Method for Micro Wind Speed Prediction of Wind Turbines Based on Time Series Analysis
Kongzhi Yu Xinxi JishuAffected by meteorological conditions, terrains, locations and specific designs, wind turbines exhibit significant uncertainties and disparities in wind energy input, which makes it difficult to predict their output power.
ZHANG Jiayou +4 more
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Journal of Marine Science and EngineeringThe installation and operation phases are critical stages in the lifecycle of offshore wind turbines, with costs associated with the installation and maintenance of floating wind turbines accounting for approximately 50% of the total investment.
Mingfeng Hu +5 more
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Advanced Engineering Materials, EarlyView.Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan +5 more
wiley +1 more source
Converter Analysis for Small Wind Turbine Applications [PDF]
E3S Web of ConferencesCurrent environmental concerns and expensive infrastructure costs have a significant impact on the adoption of wind turbine technology. Research on the technologies of small wind turbines, which are much smaller in size and capacity, has increased ...
Bhavani J. +3 more
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