Results 21 to 30 of about 5,731 (237)
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
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
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
Instabilities in tidal turbine wakes [PDF]
Proceedings of the European Wave and Tidal Energy Conference, 2023 We report on the observation of vortex instabilities in the wake of a tidal turbine undergoing harmonic unsteady axial inflow (e.g. due to surface waves). The work was carried out using unsteady RANS (URANS) modelling using the open-source CFD software OpenFOAM, using the `pimpleDyMFoam' solver.
Smyth, ASM, Nishino, T, Young, AM
openaire +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
Development and in-sea performance testing of a single point mooring supported contra-rotating tidal turbine [PDF]
, 2009 This paper discusses the development and in-sea performance testing of a single point mooring supported contra-rotating tidal turbine.
Conno, G. +11 more
core +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
Hydrodynamic Analysis of Tidal Current Turbine under Water-Sediment Conditions
Journal of Marine Science and Engineering, 2022 The rivers connecting oceans generally carry sediment due to water and soil losses in China. Additionally, the maximum sediment concentration is 300 g/L, which is much higher than that of other countries.
Yanjing Gao +4 more
doaj +1 more source
Experimental Validation of a Marine Current Turbine Simulator: Application to a Permanent Magnet Synchronous Generator-Based System Second-Order Sliding Mode Control [PDF]
, 2011 This paper deals with the experimental validation of a Matlab-Simulink simulation tool of marine current turbine (MCT) systems. The developed simulator is intended to be used as a sizing and site evaluation tool for MCT installations.
AHMED-ALI, Tarek +11 more
core +1 more source