Results 121 to 130 of about 1,368,932 (431)
Advanced Materials Interfaces, EarlyView.This study introduces an approach for creating liquid‐like slippery surfaces (LLS) on various substrates. An epoxy‐silicon (EpSi) coating is applied, plasma‐activated, and immersed in an organosilane solution, forming siloxane chains. The resulting LLS exhibits ultra‐low ice adhesion, high transparency, self‐cleaning, and anti‐staining properties ...
Amirhossein Jalali Kandeloos +6 more
wiley +1 more source
A Method for Yaw Error Alignment of Wind Turbine Based on LiDAR
IEEE Access, 2020 Yaw control is an important part of the control system of a horizontal shaft wind turbine. After the installation of the wind turbine, the turbulence influence of the wind turbine blades and the azimuth of the wind turbine will cause yaw error which ...
Le Zhang, Qiang Yang
doaj +1 more source
Replacing wakes with streaks in wind turbine arrays [PDF]
arXiv, 2020 Wind turbine wakes negatively impact downwind turbines in wind farms reducing their global efficiency. The reduction of wake-turbine interactions by actuating control on yaw angles and induction factors is an active area of research. In this study, the capability of spanwise-periodic wind turbine arrays with tilted rotors to reduce negative turbine ...
arxiv
Wind Resource Assessment in Europe Using Emergy [PDF]
, 2015 In context of increasing use of renewable sources, it is of importance to correctly evaluate the actual sustainability of their implementation. Emergy analysis is one of the possible methods useful for such an assessment. This work aims to demonstrate how the emergy approach can be used to assess the sustainability of wind energy resource in Europe ...
arxiv +1 more source
Wind tunnel experiments on wind turbine wakes in yaw: effects of inflow turbulence and shear
Wind Energy Science, 2018 . The wake characteristics behind a yawed model wind turbine exposed to different customized inflow conditions are investigated. Laser Doppler anemometry is used to measure the wake flow in two planes at x∕D = 3 and x∕D = 6, while the turbine yaw angle ...
J. Bartl +6 more
semanticscholar +1 more source
, 2012 Wind power is of increasing interest in society due to its prospects as an environmentally friendly source of renewable energy. The use of wind turbines to extract electrical energy from wind can be dated back to the late-1800s, with the 12 kW windmill generator by Charles Brush, as well as the mid-1900s, with the 1250 kW Smith-Putnam wind turbine ...
Terrell, Elon Jahdal +2 more
openaire +3 more sources
Controlling Frost Propagation on Polymeric Surfaces Using SI‐ATRP Chemical Micropatterning
Advanced Materials Interfaces, EarlyView.Local wettability differences on the polymeric substrates grafted with hydrophilic stripes are linked to local variations in the presence and state of molecular water layer (MWL). The localized MWL results in fast‐propagating freezing events on the hydrophilic stripes followed by slower freezing propagation across the more hydrophobic substrate, thus ...
Miisa J. Tavaststjerna +2 more
wiley +1 more source
The small wind turbine field lab [PDF]
, 2013 The emerging market of small wind turbines (SWT) is characterised by a large variety of turbine types as well as turbine performance. The abundance of more ‘exotic’ types of vertical axis wind turbines (VAWT) next to the more traditional horizontal axis ...
De Kooning, Jeroen +5 more
core
Integrated Optimal Design of a Passive Wind Turbine System: An Experimental Validation [PDF]
, 2010 This work presents design and experimentation of a full passive wind turbine system without active electronic part(power and control). The efficiency of such device can be obtained only if the system design parameters are mutually adapted through an ...
Espanet, Christophe +3 more
core +3 more sources
, 2020 The aim of this project is to invent a new design of portable wind turbine with the predetermined characteristic of incorporating textiles as part of the materials used in the design. The environmental surroundings in which the portable wind turbine is supposed to be used, are when travelling, especially during camping or outdoor activities, so that ...
Scheper, Daan +4 more
openaire +1 more source