Results 1 to 10 of about 322 (180)
Tidal Turbines’ Layout in a Stream with Asymmetry and Misalignment [PDF]
Energies, 2017 A refined assessment of tidal currents variability is a prerequisite for successful turbine deployment in the marine environment. However, the numerical evaluation of the tidal kinetic energy resource relies, most of the time, on integrated parameters ...
Nicolas Guillou +2 more
exaly +5 more sources
Performance of Pitch and Stall Regulated Tidal Stream Turbines [PDF]
IEEE Transactions on Sustainable Energy, 2014 Controllers for a pitch and a stall regulated horizontal axial flow, variable-speed tidal stream turbine are developed, and a performance comparison is carried out. Below rated flow speed, both turbines are operated in variable-speed mode so that the optimum tip-speed ratio is maintained. One of the turbines has variable pitch blades, which above rated
CARLOS Ernesto Ugalde Loo
exaly +2 more sources
Actuator-line CFD modelling of tidal-stream turbines in arrays [PDF]
Journal of Ocean Engineering and Marine Energy, 2018 CFD modelling of tidal turbines in arrays is described and assessed against experimental studies of turbines operating either at constant speed or constant torque. Rotor blades are represented by rotating actuator lines, whilst supports are represented by partially-blocked-out cells.
David Apsley +2 more
exaly +3 more sources
A Comparison of Numerical Modelling Techniques for Tidal Stream Turbine Analysis [PDF]
Energies, 2015 To fully understand the performance of tidal stream turbines for the development of ocean renewable energy, a range of computational models is required.
Ian Masters +7 more
doaj +3 more sources
Tidal Stream Turbine Biofouling Detection and Estimation: A Review-Based Roadmap
Journal of Marine Science and Engineering, 2023 In the context of harvesting tidal stream energy, which is considered a promising source of renewable energy due to its high energy density, stability, and predictability, this paper proposes a review-based roadmap investigating the use of data-driven ...
Haroon Rashid +4 more
doaj +1 more source
Infrastructures, 2023 The evolution of tidal stream turbines is increasing the feasibility of future tidal plants in shallow depth areas with mid-tidal ranges (
Juan Gabriel Rueda-Bayona +2 more
doaj +1 more source
Tidal energy extraction modifies tidal asymmetry and transport in a shallow, well-mixed estuary
Frontiers in Marine Science, 2023 Tidal energy extraction is increasingly being studied as a potential renewable energy resource in estuaries worldwide. Although it is understood that energy extraction via tidal stream turbines can modify currents and transport within estuaries, it is ...
Preston Spicer +4 more
doaj +1 more source
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
Characterisation of underwater operational sound of a tidal stream turbine [PDF]
The Journal of the Acoustical Society of America, 2020 The underwater sound emitted during the operation of the Atlantis AR1500 turbine, a 1.5 MW three bladed horizontal axis tidal-stream turbine, was measured in the Pentland Firth, Scotland. Most sound was concentrated in the lower frequencies, ranging from 50 to 1000 Hz. Within 20 m of the turbine, third-octave band sound pressure levels were elevated by
Denise, Risch +3 more
openaire +2 more sources
Performance and Condition Monitoring of Tidal Stream Turbines [PDF]
PHM Society European Conference, 2014 Research within the Cardiff Marine Energy Research Group (CMERG) has considered the integrated mathematical modelling of Tidal Stream Turbines (TST). The modelling studies are briefly reviewed. This paper concentrates on the experimental validation testing of small TST models in a water flume facility.
Grosvenor, Roger Ivor +3 more
openaire +1 more source