Results 1 to 10 of about 195,317 (199)

Redesign of an upwind rotor for a downwind configuration: design changes and cost evaluation [PDF]

open access: yesWind Energy Science, 2021
Within this work, an existing model of a Suzlon S111 2.1 MW turbine is used to estimate potential cost savings when the conventional upwind rotor concept is changed into a downwind rotor concept. A design framework is used to get realistic design updates
G. Wanke   +3 more
doaj   +1 more source

A method for preliminary rotor design – Part 1: Radially Independent Actuator Disc model [PDF]

open access: yesWind Energy Science, 2021
We present an analytical model for assessing the aerodynamic performance of a wind turbine rotor through a different parametrization of the classical blade element momentum (BEM) model.
K. Loenbaek   +4 more
doaj   +1 more source

Longitudinal and transverse oscillations of the impact device tool under impulsive loads [PDF]

open access: yesE3S Web of Conferences, 2023
The destruction process of the rock by the tool of the impact device occurs with an impulsive load on the tool from the recoil reaction from the side of the rock, not only in the axial, but also in the transverse direction.
Slidenko Alexander, Slidenko Viktor
doaj   +1 more source

Optimal relationship between power and design-driving loads for wind turbine rotors using 1-D models [PDF]

open access: yesWind Energy Science, 2020
We investigate the optimal relationship between the aerodynamic power, thrust loading and size of a wind turbine rotor when its design is constrained by a static aerodynamic load.
K. Loenbaek   +4 more
doaj   +1 more source

Study on Surface Strengthening Technology for Blades Based on AHP and Pugh Matrix Method [PDF]

open access: yesCailiao Baohu, 2022
 In order to evaluate the applicability of various surface strengthening technology for steam turbine blades, the evaluation system of steam turbine blade surface strengthening technology was established by analytic hierarchy process (AHP) method,
LONG Ting - yu, WU Mei - ping, MIAO Xiao - jin, YE Feng, WANG Xiang - rui, KUANG Yi - qiang
doaj   +1 more source

Differences in damping of edgewise whirl modes operating an upwind turbine in a downwind configuration [PDF]

open access: yesWind Energy Science, 2020
The qualitative changes in damping of the first edgewise modes when an upwind wind turbine is converted into the respective downwind configuration are investigated.
G. Wanke, L. Bergami, D. R. Verelst
doaj   +1 more source

Initial Feasibility Study to Drill and Core the Ocean Mantle [PDF]

open access: yesScientific Drilling, 2011
No abstract available.
N. Pilisi, B. Whitney
doaj   +1 more source

Structural health monitoring of 52-meter wind turbine blade: Detection of damage propagation during fatigue testing

open access: yesData-Centric Engineering, 2022
This work is concerned with damage detection in a commercial 52-meter wind turbine blade during fatigue testing. Different artificial damages are introduced in the blade in the form of laminate cracks.
Mads A. Fremmelev   +5 more
doaj   +1 more source

On the extension of k−ω−SST corrections to predict flow separation on thick airfoils with leading‐edge roughness

open access: yesWind Energy, 2023
Modern wind turbines employ thick airfoils in the outer region of the blade with strong adverse pressure gradients and high sensitivity to flow separation, which can be anticipated by leading‐edge roughness.
Ruben Gutierrez   +4 more
doaj   +1 more source

The Effects of Water Debit and Number of Blades on the Power Generated of Prototype Turbines Propeller as Renewable Electricity

open access: yesRekayasa Mesin, 2021
This research is a prototype design of a Pico hydropower plant. The Pico hydro laboratory scale is planned to be installed at the water outlet at the steam gas power plant (PLTGU) in Cilegon, whose water discharge has not been utilized.
Agung Wahyudi Biantoro   +3 more
doaj   +1 more source

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