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Tidal Current Turbine, Wind Turbine and Their Dynamic Modelling
2014Wind and tidal current are of the most common energy resources for generating electricity in the near future because of the oil problems (crises and pollution). Within that frame, wind and tidal current energies are surging to the fore. The dynamic model of the offshore wind and tidal current is very important topic for dealing with these renewable ...
Hamed H. H. Aly, M. E. El-Hawary
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Overall Efficiency of Ducted tidal current turbines
OCEANS 2010 MTS/IEEE SEATTLE, 2010Computational fluid dynamics (CFD) simulations have been completed to characterize the efficiency of tidal turbines. Efficiency is taken as the ratio of power production (i.e. useful electricity) to total power lost from the upstream incident flow energy. Many tidal turbine developers are considering ducted designs which accelerate the flow through the
M Shives, C Crawford
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The study on the load and flow field of a twin-rotor vertical axis tidal current turbine
Ships and Offshore StructuresThe purpose of this paper is to investigate the influence of interference effects on the load and flow field of double-rotor vertical axis tidal current turbines. Numerical simulations were conducted using computational fluid dynamics (CFD) methods.
Jin Jiang +3 more
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Tidal current turbine based on hydraulic transmission system
Journal of Zhejiang University-SCIENCE A, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liu, Hong-wei +3 more
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Design of a horizontal axis tidal current turbine
Applied Energy, 2013Abstract Pacific Island Countries (PICs) have a huge renewable energy potential to meet their energy needs. Limited resources are available on land; however, large amount of ocean energy is available and can be exploited for power generation. PICs have more sea-area than land-area.
Jai N. Goundar, M. Rafiuddin Ahmed
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Renewable Energy, 2014
Abstract During the last decade, the development of tidal current industries has experienced a rapid growth. Many devices are being prototyped. For various purposes, investors, industries, government and academics are looking to identify the best device in terms of of cost of energy and performance.
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Abstract During the last decade, the development of tidal current industries has experienced a rapid growth. Many devices are being prototyped. For various purposes, investors, industries, government and academics are looking to identify the best device in terms of of cost of energy and performance.
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Prototype Support Structure for Seabed Mounted Tidal Current Turbines
Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment, 2005This paper introduces the patented concept of the Sea Snail, a pin-jointed tubular steel structure carrying an array of symmetrical section hydrofoils, which is used as a means of fixing a tidal turbine, or other devices, to the seabed. The concept is evaluated as a simple mathematical model, tested as a one-eighth-scale model and subsequently ...
A Owen, I G Bryden
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The power generation from tidal currents by darrieus turbine
Renewable Energy, 1996Abstract This paper reports the method of electric power generation from tidal currents and test results of the system which is specially designed for this purpose. The system consists of a vertical axis turbine, a gear box, an electric generator, and a control unit. The turbine is the vertical axis Darrieus rotor, and has three blades.
S. Kiho, M. Shiono, K. Suzuki
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Performance of Bi-Directional Blades for Tidal Current Turbines
Volume 1C, Symposia: Fundamental Issues and Perspectives in Fluid Mechanics; Industrial and Environmental Applications of Fluid Mechanics; Issues and Perspectives in Automotive Flows; Gas-Solid Flows: Dedicated to the Memory of Professor Clayton T. Crowe; Numerical Methods for Multiphase Flow; Transport Phenomena in Energy Conversion From Clean and Sustainable Resources; Transport Phenomena in Materials Processing and Manufacturing Processes, 2014Horizontal-Axis Tidal Current Turbines can utilize bi-directional blades which operate well in both directions in a reversing flow, avoiding the use of yaw or pitch mechanisms, thus reducing initial and maintenance costs. A “class” of bi-directional hydrofoil shapes was designed, and studied numerically using OpenFOAM, and one foil with favorable ...
Ivaylo Nedyalkov, Martin Wosnik
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