Results 41 to 50 of about 579,350 (230)
Energies, 2019 The scouring by a tidal turbine is investigated by using a joint theoretical and experimental approach in this work. The existence of a turbine obstructs a tidal flow to divert the flow passing through the narrow channel in between the blades and seabed.
Tianming Zhang +9 more
doaj +1 more source
Performance Improvement of a Darrieus Tidal Turbine with Active Variable Pitch
Energies, 2021 Vertical axis turbines, also called Darrieus turbines, present interesting characteristics for offshore wind and tidal applications but suffer from vibrations and a lower efficiency than the more conventional horizontal axis turbines. The use of variable
Pierre-Luc Delafin +3 more
semanticscholar +1 more source
Harbour porpoises exhibit localized evasion of a tidal turbine
Aquatic conservation, 2021 1. Tidal energy generators have the potential to injure or kill marine animals, including small cetaceans, through collisions with moving turbine parts.
D. Gillespie +4 more
semanticscholar +1 more source
3-D Simulation of Vertical-Axial Tidal Current Turbine
Polish Maritime Research, 2016 Vertical-axial tidal current turbine is the key for the energy converter, which has the advantages of simple structure, adaptability to flow and uncomplex convection device. It has become the hot point for research and application recently.
Zhiyang Zhang +4 more
doaj +1 more source
Energies, 2021 This study quantifies the technical, economic and environmental performance of hybrid systems that use either a tidal stream or wind turbine, alongside short-term battery storage and back-up oil generators.
Daniel Coles +3 more
doaj +1 more source
, 2020 Recently, tidal stream turbines have become a preferable mode of harvesting tidal energy. The main issue for low utilization of tidal energy is the high levelized cost of energy (LCoE) from tidal stream turbines. A major reason for this is the high operation and maintenance costs for submerged installations.
Wani, F.M. (author) +2 more
openaire +4 more sources
Journal of Marine Science and Engineering, 2021 An integrated wave-tidal current power turbine is affected by both wave and tidal current forces, and its energy efficiency is closely related to the velocity and direction of the two forces.
Yamei Li +5 more
doaj +1 more source
Study on Impact of Turbine Location on Hydrodynamics in Tidal Farm
Discrete Dynamics in Nature and Society, 2019 This work aims at investigating the impact of different tidal turbine locations on hydrodynamics in near-field and far-field flow; thus, three- and two-dimensional (3- & 2-D) models were exploited in combination and applied in a case study of Putuo-Hulu ...
Hongqiang Zhang +6 more
doaj +1 more source
Analysis of the kinetic energy recovery behind a tidal stream turbine for various submergence levels
International Marine Energy Journal, 2022 Tidal turbines are commonly deployed at sea sites with water depths of up to 50 m to ease their deployment and quick maintenance operations. In these relatively shallow water depth conditions, the vertical expansion of tidal stream turbine wakes is ...
Pablo Ouro +2 more
doaj +1 more source
Wake of a Ducted Vertical Axis Tidal Turbine in Turbulent Flows, LBM Actuator-Line Approach
Energies, 2019 Vertical axis tidal turbines are devices that extract the kinetic energy from tidal currents. Tidal currents can be highly turbulent. Since ambient turbulence affects the turbine hydrodynamic, it is critical to understand its influence in order to ...
Mikaël Grondeau +3 more
doaj +1 more source