Results 111 to 120 of about 550,087 (272)
A note on the tuning of tidal turbines in channels
Journal of Ocean Engineering and Marine Energy, 2019 Maximising the performance of a tidal turbine array requires the turbine resistance to be ‘tuned’ for a given channel and turbine arrangement. In many cases, tuning the turbines to produce the maximum power coefficient presents too great a resistance to ...
Lei Chen +3 more
semanticscholar +1 more source
A Physics-based prognostics approach for Tidal Turbines
International Conference on Prognostics and Health Management, 2019 Tidal Stream Turbines (TST) have the potential to become an important part of the sustainable energy mix. One of the main hurdles to commercialization is the reliability of the turbine components.
Fraser Ewing +3 more
semanticscholar +1 more source
Effect of Wavelength on Turbine Performances and Vortical Wake Flows for Various Submersion Depths
Journal of Marine Science and EngineeringWhen tidal turbines are deployed in water areas with significant waves, assessing the surface wave effects becomes imperative. Understanding the dynamic impact of wave–current conditions on the fluid dynamic performance of tidal turbines is crucial. This
Bohan Liu, Sunho Park
doaj +1 more source
Energies, 2017 This paper analyses the effects of doubly fed induction generator (DFIG) tidal current turbines on a distribution grid under unbalanced voltage conditions of the grid.
Dahai Zhang +5 more
doaj +1 more source
Evaluation of Free-Surface Exposure Effects on Tidal Turbine Performance Using CFD
Journal of Marine Science and EngineeringTidal turbines represent a promising renewable energy source, generating power from ocean currents. However, due to tidal range variations, they sometimes become partially exposed to the free surface.
Gyeongseo Min +8 more
doaj +1 more source
Design, commissioning and performance of a device to vary the turbulence in a recirculating flume
, 2013 Ambient turbulent flow structures are one of the key drivers that will determine the rate of wake recovery downstream of tidal turbines. For second and third generation arrays or farms such a parameter is critical for the determination of inter-device ...
Galloway, P.W., Myers, L.E., Shah, K.D
core
Effect of the Shape of Stator Blades on the Performance Output of a Vertical Axis Marine Current Turbine [PDF]
, 2013 Due to the diminishing reserves of fossil fuels and increased pollution from exploitation of these fuels, the world is focusing on the renewable energy sources.
Asim, Taimoor +2 more
core +1 more source
, 2016 Computational fluid dynamics (CFD) is used in this thesis to model wind and tidal stream turbines and to investigate tidal turbine fence performance. There are two primary objectives of this work. The first is to develop and validate an actuator line method for the simulation of wind and tidal turbines which applies the blade forces to the flow field ...
Schluntz, J, Schluntz, Justine
openaire +1 more source
Large Eddy Simulation Of Tidal Turbines
, 2017 Understanding of hydrodynamics involved in the ow around tidal turbines is essential to enhance their performance and resilience, as they are designed to operate in harsh marine environments. During their lifespan, they are subjected to high velocities with large levels of turbulence that demand their design to be greatly optimised.
openaire +1 more source
, 2009 Tidal turbines offer an exciting opportunity to exploit ocean current flows to generate sustainable energy. However, a key to their success is the ability to operate with minimal intervention in the ocean over extended periods (15-20 years). This talk explored the likely design and operational issues that will influence satisfactory performance ...
Turnock, S.R. +3 more
openaire +1 more source