Results 21 to 30 of about 2,810 (193)
Optimal relationship between power and design-driving loads for wind turbine rotors using 1-D models [PDF]
Wind 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
1004 Toward Transcendence of the Theoretical Betz Limit Using Wind-Lens Turbine
The Proceedings of the Fluids Engineering Conference, 2014 Nobuhito Oka, Kazutoyo Yamada
exaly +3 more sources
Energies, 2020 Horizontal axis turbines are commonly used for harnessing renewable hydrokinetic energy, contained in marine and river currents. In order to encourage the expansion of electricity generation using micro-hydrokinetic turbines, several design improvements ...
Marina Barbarić, Zvonimir Guzović
doaj +1 more source
Numerical study of ducted turbines in bi-directional tidal flows
Engineering Applications of Computational Fluid Mechanics, 2021 Installing a turbine in a duct generally increases the flow through the rotor. If there is flow confinement due to limited water depth, the presence of lateral boundaries, or the presence of adjacent turbines, a further flow enhancement through the rotor
M. Maduka, C.W. Li
doaj +1 more source
Design parameters and mechanical efficiency of jet wind turbine under high wind speed conditions
Open Engineering, 2023 Turbines are one of the most important means of producing clean energy, as they do not cause any negative emissions affecting the environment. Recently, the need to design turbines capable of facing strong winds has appeared because the currently ...
Dahham Abbas Waheed +9 more
doaj +1 more source
Small Horizontal Wind Turbine Design and Aerodynamic Analysis Using Q-Blade Software
مجلة بغداد للعلوم, 2023 Wind energy is one of the most common and natural resources that play a huge role in energy sector, and due to the increasing demand to improve the efficiency of wind turbines and the development of the energy field, improvements have been made to ...
Othman K. Zidane, Yaseen H. Mahmood
doaj +1 more source
Scaling limit of ballistic self-avoiding walk interacting with spatial random permutations [PDF]
, 2019 We consider nearest neighbour spatial random permutations on ZdZd. In this case, the energy of the system is proportional to the sum of all cycle lengths, and the system can be interpreted as an ensemble of edge-weighted, mutually self-avoiding loops ...
Betz, Volker, Taggi, Lorenzo
core +2 more sources
Energies, 2012 A detailed review of the current state-of-art for wind turbine blade design is presented, including theoretical maximum efficiency, propulsion, practical efficiency, HAWT blade design, and blade loads.
Richard J. Crossley, Peter J. Schubel
doaj +1 more source
CFD studies of the effect of holes and angles of upstream duct of horizontal axis wind turbines
AIP Advances, 2023 This work presents an approach to the analysis of duct-augmented wind turbines using Computational Fluid Dynamics (CFD). The main objective is to find the optimum duct shape and design that gives maximum boost to the performance of wind turbines.
Syed Noman Danish +2 more
doaj +1 more source
Blockage Corrections for Tidal Turbines—Application to an Array of Turbines in the Alderney Race
Energies, 2022 Tidal turbines are located in shallow water depths in comparison to their dimensions (15 m-diameter turbines in 40 m depths, typically). Constrained vertically by the water depth and laterally by neighbouring turbines, the flow within a tidal farm is ...
Nasteho Djama Dirieh +3 more
doaj +1 more source