Results 11 to 20 of about 7,485,910 (211)

The effect of tidal currents on the hydrodynamics of tidal turbine systems [PDF]

open access: yesBIO Web of Conferences
The ocean is a highly potential source of renewable energy with various forms, including wave and tidal energy. Due to its vast composition, the ocean stores and transfers significant amounts of energy. This study focuses on analyzing tidal dynamics that
Firmadany Bayu   +4 more
doaj   +2 more sources

Design and testing of a contra-rotating tidal current turbine [PDF]

open access: yes, 2005
A contra-rotating marine current turbine has a number of attractive features: nearzero reactive torque on the support structure, near-zero swirl in the wake, and high relative inter-rotor rotational speeds.
A. D. Grant   +18 more
core   +5 more sources

FSI analysis of deformation along offshore pile structure for tidal current power [PDF]

open access: yes, 2013
Due to global warming, the need to secure an alternative clean energy resource has become an international issue. Tidal current power is now recognized as one of the clean power resources in Korea, where there are many strong current regions on the west ...
Rho, Yu-Ho   +4 more
core   +4 more sources

Improved Blade Design for Tidal Current Turbines [PDF]

open access: yesEnergies, 2020
The efficiency and reliability of blades are key indicators for a tidal current turbine (TCT). A traditional blade design is often an empirical design on hydrodynamics and structure, sequentially. A hydrofoil with a low lift–drag ratio is considered when the structural strength cannot satisfy requirements. However, efficiency is then sacrificed.
Hongwei Liu   +5 more
openaire   +2 more sources

Development and in-sea performance testing of a single point mooring supported contra-rotating tidal turbine [PDF]

open access: yes, 2009
This paper discusses the development and in-sea performance testing of a single point mooring supported contra-rotating tidal turbine.
Conno, G.   +3 more
core   +5 more sources

An Up - to - Date Review of Large Marine Tidal Current Turbine Technologies [PDF]

open access: yes, 2014
Owning to the predictability of tidal current resources, marine tidal current energy is considered to be a reliable and promising renewable power source for coastal areas or some remote islands.
SCUILLER, Franck   +11 more
core   +1 more source

Unsteady wake modelling for tidal current turbines [PDF]

open access: yesIET Renewable Power Generation, 2011
The authors present a numerical model for three-dimensional unsteady wake calculations for tidal turbines. Since wakes are characterised by the shedding of a vortex sheet from the rotor blades, the model is based on the vorticity transport equations. A vortex sheet may be considered a jump contact discontinuity in tangential velocity with, in inviscid ...
Mccombes, Tom   +2 more
openaire   +3 more sources

Modeling and Control of a Marine Current Turbine Driven Doubly-Fed Induction Generator [PDF]

open access: yes, 2010
This paper deals with the modeling and the control of a variable speed DFIG-based marine current turbine with and without tidal current speed sensor.
BENELGHALI, Seifeddine   +3 more
core   +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]

open access: yes, 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

Low speed doubly salient permanent magnet generator with passive rotor for a tidal current turbine [PDF]

open access: yes, 2013
This paper presents a low speed permanent magnet generator that can be associated with a tidal turbine. This structure has a passive rotor which leads to a simple and robust structural solution. The principle of operation and an electromecanical model of
MOREAU, Luc   +3 more
core   +1 more source

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