Results 11 to 20 of about 797,278 (303)

The Effect of the Second-Order Wave Loads on Drift Motion of a Semi-Submersible Floating Offshore Wind Turbine

open access: yesJournal of Marine Science and Engineering, 2020
Floating offshore wind turbines (FOWTs) have been installed in Europe and Japan with relatively modern technology. The installation of floating wind farms in deep water is recommended because the wind speed is stronger and more stable.
Thanh-Dam Pham, Hyunkyoung Shin
doaj   +1 more source

Reduction of Stress Concentration Factor (SCF) on the Bolted Joint Connection for a Large Wind Turbine Rotor Blade through Various Design Modifications

open access: yesApplied Sciences, 2020
The importance of a reliable blade root connection has grown due to the higher-gravity-induced edgewise loads on the blade root that resulted from the recent increased size and weight of a wind turbine rotor blade.
Kwangtae Ha
doaj   +1 more source

Synergistic improved electrical resistivity-temperature characteristics and DC breakdown strength in insulating XLPE composites by incorporating positive temperature coefficient particles

open access: yesPolymer Testing, 2023
Weakening the electrical resistivity-temperature dependence of cross-linked polyethene (XLPE) is an effective way to enhance the electric field uniformity of high-voltage direct current (HVDC) cables.
Guimin Jiang   +6 more
doaj   +1 more source

Failure warning of gearbox for wind turbine based on 3σ-median criterion and NSET

open access: yesEnergy Reports, 2021
Wind turbine has been working in the harsh environment for a long time, which leads to frequent failures. It is of great practical significance to use reasonable and efficient methods to early-warning wind turbine components. In the actual operation, due
Shaoke Wang   +3 more
doaj   +1 more source

What blows in with the wind? [PDF]

open access: yes, 2013
The shift toward renewable forms of energy for electricity generation in the electricity generation industry has clear implications for the spatial distribution of generating plant.
De Silva, Dakshina G.   +2 more
core   +1 more source

Electrical resistivity‐temperature characteristics enhancement of insulating cross‐linked polyethylene composites by incorporating positive temperature coefficient particles with different Curie temperatures

open access: yesHigh Voltage, 2023
Incorporating positive temperature coefficient (PTC) ceramic particles into polymers provides a prospective alternative solution for suppressing severe electric field distortions caused by negative temperature coefficient (NTC) of electrical resistivity ...
Guimin Jiang   +6 more
doaj   +1 more source

Greenhouse Gas Emissions Savings from Wind Power [PDF]

open access: yes, 2013
Currently in Great Britain, estimates of the greenhouse gas (GHG) emissions savings that arise from wind power replacing other types of generation are approximated as the average emissions of electricity generation; however, this value is known to be ...
Chick, J. P.   +2 more
core   +2 more sources

Changes of cross-linked network and DC electrical properties of nanocomposite silicone rubber under thermal aging

open access: yesEnergy Reports, 2022
Nano dielectrics have brought hope for solving the problem of cable insulation at high voltage levels. In this paper, nano Al2O3 and MgO are doped to silicone rubber and the nanocomposites are aged at 200 °C for 0-80 days. The electrical conductivity and
Yunxiao Zhang   +3 more
doaj   +1 more source

Wind Power Generation

open access: yes, 2022
AbstractWind power plays a major role in the decarbonization of the power sector. Already now, it supplies increasing shares of the global energy demand. This book chapter provides an overview on the economics of wind energy and highlight global trends in the wind sector.
Eicke, A., Eicke, L., Hafner, M.
openaire   +4 more sources

A low leakage current (Co, Mn, Ta)-SnO2 varistor tailored by doping with chromium for power grids

open access: yesResults in Physics, 2020
A SnO2 varistor which was prospected to be used in ultra-high voltages grids as an overvoltage protection element was developed. The SnO2 varistor was doped with Cr to improve the comprehensive electrical properties. The optimal electrical parameters are
Hongfeng Zhao   +4 more
doaj   +1 more source

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