Results 61 to 70 of about 1,372,760 (431)
Multirotor wind turbine wakes [PDF]
Physics of Fluids, 2019 To fulfill the increasing need for large power generation by wind turbines, the concept of multirotor wind turbines has recently received attention as a promising alternative to conventional massive single-rotor wind turbines. To shed light on the viability of this concept, large-eddy simulation is employed in this study to compare wake flow properties
Majid Bastankhah, Mahdi Abkar
openaire +4 more sources
IEEE transactions on industrial electronics (1982. Print), 2019 Bearing is the major contributor to wind turbine gearbox failures. Accurate remaining useful life prediction for drivetrain gearboxes of wind turbines is of great importance to achieve condition-based maintenance to improve the wind turbine reliability ...
Fangzhou Cheng +3 more
semanticscholar +1 more source
Wind turbine reliability analysis [PDF]
Renewable and Sustainable Energy Reviews, 2013 Against the background of steadily increasing wind power generation worldwide, wind turbine manufacturers are continuing to develop a range of configurations with different combinations of pitch control, rotor speeds, gearboxes, generators and converters.
Pinar Pérez, Jesús María +3 more
openaire +2 more sources
State of the Art in the Optimisation of Wind Turbine Performance Using CFD [PDF]
, 2019 Wind energy has received increasing attention in recent years due to its sustainability and geographically wide availability. The efficiency of wind energy utilisation highly depends on the performance of wind turbines, which convert the kinetic energy ...
Haghnegahdar, Mohammad Amin +5 more
core +1 more source
Accurate RANS Simulation of Wind Turbine Stall by Turbulence Coefficient Calibration
Applied Sciences, 2018 Stall, a complex phenomenon related to flow separation, is difficult to be predicted accurately. The motivation of the present study is to propose an approach to improve the simulation accuracy of Reynolds Averaged Navier–Stokes equations (RANS ...
Wei Zhong +3 more
doaj +1 more source
, 2018 It uses a radically new approach to capturing wind energy. The device captures the energy of vortices,an aerodynamic effect that has plagued structural engineers and architects for ages (vortex shedding effect). As the wind bypasses a fixed structure,its flow changes and generates a cyclical pattern of vortices. Once these forces are strong enough,the
S Davang Shubham, K Manade Sunil
openaire +3 more sources
Behavior of bats at wind turbines [PDF]
Proceedings of the National Academy of Sciences, 2014 Significance Bats are dying in unprecedented numbers at wind turbines, but causes of their susceptibility are unknown. Fatalities peak during low-wind conditions in late summer and autumn and primarily involve species that evolved to roost in trees.
Douglas H. Johnson +12 more
openaire +5 more sources
Wind turbine condition monitoring : technical and commercial challenges. [PDF]
, 2014 Deployment of larger scale wind turbine systems, particularly offshore, requires more organized operation and maintenance strategies to ensure systems are safe, profitable and cost-effective.
Amirat +35 more
core +1 more source
Silane and silazane surface modification of recycled glass fibers for polypropylene composites
Journal of Applied Polymer Science, Volume 140, Issue 5, February 5, 2023., 2023 This study investigates the efficiency of multifunctional silane and silazane agents for surface modification of recycled glass fibers. Overall, the amino‐silane reagents improve the dispersion of GFs in PP, and permit subsequent reaction with MAPP leading to better compatibilization, with moderate improvements in strength attributed to the ...
Kyriaki Gkaliou, Anders E. Daugaard
wiley +1 more source
Applied Sciences, 2018 This study aims to assess the dynamic stall of the wind turbine blade undergoing pitch oscillation (PO) and oscillating freestream (OF), respectively. Firstly, a thin-airfoil theoretical analysis was performed to differentiate between these two dynamic ...
Chengyong Zhu, Tongguang Wang
doaj +1 more source