Results 1 to 10 of about 18,578 (208)

3-D Simulation of Vertical-Axial Tidal Current Turbine [PDF]

open access: yesPolish 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   +2 more sources

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

Research on Solidity of Horizontal-Axis Tidal Current Turbine

open access: yesEnergies, 2023
In this paper, the blade solidity of the tidal current turbine was investigated. Based on the blade element momentum theory, different design flow velocities were selected to design two blade types with different solidities.
Xiancheng Wang   +4 more
doaj   +2 more sources

Computational Fluid Dynamics-based Simulation and Design of a Horizontal Tidal Turbine System [PDF]

open access: yesE3S Web of Conferences, 2023
Tidal phenomena, the rhythmic rise and fall of sea waters due to gravitational forces among celestial bodies like the Sun, Earth, and moon, offer a dependable source of renewable energy.
Mohamad Azim Mohd Azmi   +1 more
doaj   +1 more source

Research on an All-Flow Velocity Control Strategy for a 120 kW Variable-Pitch Horizontal Axis Tidal Current Turbine

open access: yesJournal of Marine Science and Engineering, 2022
Horizontal-axis tidal current turbines have considerable potential to harvest renewable energy from ocean tides. The pitch control system is a critical part of variable-pitch tidal turbines.
Bingzhen Wang   +3 more
doaj   +1 more source

Research on the Blade Motion of a Bidirectional Energy-Generating Turbine under Integrated Wave and Tidal Current Action

open access: yesJournal 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

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

Hydrodynamic Analysis of Tidal Current Turbine under Water-Sediment Conditions

open access: yesJournal 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

Disturbance rejection controller design based on nonlinear with fuzzy approximation technique for a tidal turbine system

open access: yesJournal of King Saud University: Engineering Sciences, 2023
In this work, a novel disturbance rejection controller based on a nonlinear fractional order proportional integral derivative with fuzzy (NLFOPIDF) approximation and an adaptive law technique for a 160 kW two horizontal axis parts tidal turbine model is ...
Mustafa Wassef Hasan
doaj   +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   +2 more sources

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