Results 21 to 30 of about 1,296,720 (203)
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
Wind Turbine Power: The Betz Limit and Beyond [PDF]
, 2012 With a severe energy crisis facing the modern world, the production and utilization of ener‐ gy has become a vital issue, and the conservation of energy has acquired prime importance. Energy production and consumption are directly related to everyday life in much of human society, and issues of energy research are extremely important and highly ...
Mahmoud Huleihil, Gedalya Mazor
openaire +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
The LIQUID endstation for in situ spectro-electrochemical studies on energy materials @ BACH beamline. [PDF]
J Synchrotron RadiatA new endstation for soft X‐ray absorption spectroscopy in liquid environments has been installed at the BACH beamline of Elettra Sincrotrone Trieste. The setup includes upgraded and newly developed cells for a range of soft‐X‐ray experiments at solid/liquid interfaces, including studies on battery materials.A new endstation completely dedicated to the
Napal Azcona I +13 more
europepmc +2 more sources
Theoretical Calculation of Wind (Or Water) Turbine: Extending the Betz Limit
, 2021 The Betz limit sets a theoretical upper limit for the power production by turbines expressed as a maximum power coefficient of 16/27. Betz’s theory is accurate and it is based on the calculation of kinetic energy.
Pierre Lecanu +3 more
openaire +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
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
Numerical investigation of the optimum wind turbine sitting for domestic flat roofs
Sustainable Buildings, 2018 The power capacity of roof mounted wind turbines is dependent on several factors which influence its energy yield. In this paper, an investigation has been carried out using Computational Fluid Dynamics (CFD) to determine flow distribution and establish ...
Ishfaq Salman Muhammad +1 more
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