Results 51 to 60 of about 270,110 (384)
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
ChemCatChem, Volume 15, Issue 2, January 20, 2023., 2023 Ammonia Decomposition for a Carbon‐Free Hydrogen Fuel Technology: Ammonia is a promising example of an efficient and transportable hydrogen carrier. The thermocatalytic decomposition of ammonia can be used to produce COx‐free hydrogen on demand. Thorough research into this process and the development of active catalyst materials are seen as the ...
Stefan Peters +2 more
wiley +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
Application Areas of Ionic Hydraulic Fluids
Chemical Engineering &Technology, Volume 46, Issue 1, Page 14-20, January 2023., 2023 Ionic liquids as high‐tech technical fluids have also made their way into the field of hydraulic drives. With excellent lubricating properties, a wide temperature range, low pour point and vapor pressure, as well as nonflammability and environmental suitability, problems with only one type of fluid, namely, an ionic hydraulic fluid, instead of using ...
Darko Lovrec, Roland Kalb, Vito Tič
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
Development of a mobile robot assistant for wind turbines manufacturing [PDF]
arXiv, 2022 The thrust for increased rating capacity of wind turbines has resulted into larger generators, longer blades, and taller towers. Presently, up to 16 MW wind turbines are being offered by wind turbines manufacturers which is nearly a 60 percent increase in the design capacity over the last five years.
arxiv
Dynamic modelling of wind turbine and power system for fault ride-through analysis [PDF]
, 2010 This paper presents a Simulink model of a wind power system for the holistic analysis of wind turbine and power grid during grid faults, aiming to investigate wind turbine Fault Ride-Through performance.
Anaya-Lara, Olimpo +2 more
core
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