Results 21 to 30 of about 1,394 (221)

Comparative Critique on Power Generation in Wind Turbines

open access: yesChemical Engineering Transactions, 2019
In this study, the performance of different wind turbines is compared using Qblade software. Typically wind turbines are categorized as Horizontal Axis Wind Turbine (HAWT), and Vertical axis wind turbine (VAWT) which in this paper Darrieus type as a VAWT
Navid Majdi Nasab   +2 more
doaj   +1 more source

Aerodynamic Performance of Vertical-Axis Wind Turbines

open access: yesJournal of Marine Science and Engineering, 2023
The nonstationary separated incompressible flows around Darrieus and Savonius rotors of vertical-axis wind turbines were investigated through computational simulation using the Reynolds averaged Navier–Stokes equations and Spalart–Allmaras turbulence ...
Dmytro Redchyts   +6 more
doaj   +1 more source

Analysis of conditions favourable for small vertical axis wind turbines between building passages in urban areas of Sweden

open access: yesInternational Journal of Sustainable Energy, 2017
This paper presents the analysis of installing the vertical axis wind turbines between the building passages on an island in Stockholm, Sweden. Based on the idea of wind speed amplification due to the venture effect in passages, practical measurements ...
Muhammad Rizwan Awan   +2 more
doaj   +1 more source

Vortex capturing vertical axis wind turbine [PDF]

open access: yesJournal of Physics: Conference Series, 2007
An analytical-numerical study is presented for an innovative lift vertical axis turbine whose blades are designed with vortex trapping cavities that act as passive flow control devices. The unsteady flow field past one-bladed and two-bladed turbines is described by a combined analytical and numerical method based on conformal mapping and on a blob ...
Zannetti, L, Gallizio, F, Ottino, G
openaire   +3 more sources

Development and Validation of CFD 2D Models for the Simulation of Micro H-Darrieus Turbines Subjected to High Boundary Layer Instabilities

open access: yesEnergies, 2020
The simulation of very small vertical axis wind turbines is often a complex task due to the very low Reynolds number effects and the strong unsteadiness related to the rotor operation.
Rosario Lanzafame   +3 more
doaj   +1 more source

Evaluation of the Influences of Different Roof Shapes on the Flow Properties and Performance of Small Wind Turbines

open access: yesJournal of Mechanical Engineering, 2023
Small wind turbines offer a complement to photovoltaic systems and are becoming an interesting solution in the wake of rising energy prices. The measurement results indicate that some locations on and around the building are not suited for installing ...
Alexander Hirschl, Daniel Österreicher
doaj   +1 more source

Vertical Axis Wind Turbine

open access: yesIJIREEICE
The key components of a vertical-axis wind turbine (VAWT) are located at the base of the turbine, with the primary rotor shaft aligned transversely to the wind. Because of this arrangement, maintenance and repairs are made easier because the generator and gearbox are located close to the ground.
  +4 more sources

Structural optimization design of novel Senegal vertical axis wind turbine [PDF]

open access: yesJournal of Hebei University of Science and Technology
Aiming at the problem that the wind energy utilization of vertical axis wind turbines is slightly lower than that of horizontal axis wind power,a new wind turbine based on Senegalese (Senegal) type wind turbine was proposed. Firstly, the curvature of the
Zheng LI   +4 more
doaj   +1 more source

Influence of wind energy utilization potential in urban suburbs: a case study of Hohhot

open access: yesScientific Reports, 2021
Given the increasing trend of using wind energy in cities, the utilization of distributed wind energy in cities has been widely concerned by researchers.
Wang Wenxin   +4 more
doaj   +1 more source

Experimental Investigation of Aerodynamic Characteristics for Three Typical Micro Wind Turbines at Low Reynolds Number

open access: yesJournal of Applied Fluid Mechanics, 2020
Onsite utilization of wind energy in the urban environment is an effective solution to environmental protection and energy security. The typically micro wind turbines, including Savonius vertical axis wind turbine, H-type vertical axis wind turbine and ...
J. Y. Zhu, L. Zhang, Q. L. Qu, P. Q. Liu
doaj  

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