Results 61 to 70 of about 1,238 (219)

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. We review and compare results from several models of horizontal axis turbines at different spatial scales. Models under review include blade element momentum theory (BEMT), blade element actuator disk,
Ian Masters, Alison Williams, T. Nick Croft, Michael Togneri, Matt Edmunds, Enayatollah Zangiabadi, Iain Fairley, Harshinie Karunarathna   +7 more
openaire   +3 more sources

Alteration to the shallow-water tides and tidal asymmetry by tidal-stream turbines [PDF]

, 2019
Tidal flow velocity asymmetry (FVA) plays a crucial role in residual sediment transport and has been shown to impact significantly on the amount of tidal energy that is technically extricable by tidal-stream turbines (TSTs). TSTs are known to alter tidal hydrodynamics locally, and large arrays of turbines do this on regional ...
Potter, Dan, Folkard, Andrew, Ilic, Suzana   +2 more
openaire   +1 more source

Life Cycle Environmental Impacts and Socio‐Economic Implications of Tidal Electricity Generation and Storage in the UK

Advanced Sustainable Systems, Volume 10, Issue 6, June 2026.
If tidal electricity generation and storage replaced natural gas and battery storage by 2050, it could reduce the climate change impact of UK grid electricity by 71%, saving up to 4.4 Mt CO2 eq./y. Most other environmental impacts would be reduced by up to 24%. However, high costs and low public acceptability hinder its deployment. ABSTRACT Tidal range
Harish K. Jeswani, Slobodan Perdan, Adisa Azapagic   +2 more
wiley   +1 more source

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 D. Apsley, Tim Stallard, Peter K. Stansby   +2 more
openaire   +2 more sources

Investigating Tidal Stream Turbine Array Performance Considering Effects of Number of Turbines, Array Layouts, and Yaw Angles

Journal of Marine Science and Engineering
The performance of a tidal stream turbine array can be affected by numerous factors. Investigating the connection between array power production and these factors will be helpful in improving the development of tidal stream energy.
Can Zhang, Kai Zhang, Xiaoming Cheng, Xiangfeng Lin, Jisheng Zhang, Chengsheng Wu, Zhihao Ren   +6 more
doaj   +1 more source

Viability Analysis of Tidal Turbine Installation Using Fuzzy Logic: Case Study and Design Considerations

Axioms, 2023
Tidal energy represents a clean and sustainable source of energy generation that can address renewable energy challenges, especially the global challenge of optimizing alternatives for stable supply.
Ángel M. Rodríguez-Pérez, César A. Rodríguez, Alba Márquez-Rodríguez, Julio J. Caparros Mancera   +3 more
doaj   +1 more source

Techno‐Economic Assessment of a Hydrogen‐Assisted Hybrid Renewable Microgrid with Fuel Cells for Off‐Grid Electrification

Global Challenges, Volume 10, Issue 6, June 2026.
This study presents a hydrogen‐assisted hybrid renewable microgrid optimized using HOMER Pro for off‐grid electrification in coastal Bangladesh. Integrating solar PV, wind, BESS, electrolyzer, hydrogen storage, and fuel cells, the system achieves a low cost of energy ($0.139/kWh), high reliability, and near‐zero emissions, offering a sustainable and ...
Taib Hasan, Prapti Das, Md. Feroz Ali, Md Shafiul Alam, Mohammad Ali, Imil Hamda Imran   +5 more
wiley   +1 more source

Impact of Environmental Turbulence on the Performance and Loadings of a Tidal Stream Turbine [PDF]

Flow, Turbulence and Combustion, 2018
A large-eddy simulation (LES) of a laboratory-scale horizontal axis tidal stream turbine operating over an irregular bathymetry in the form of dunes is performed. The Reynolds number based on the approach velocity and the chord length of the turbine blades is approximately 60,000.
Pablo Ouro, Thorsten Stoesser
openaire   +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, Mohamed Benbouzid, Hosna Titah-Benbouzid, Yassine Amirat, Abdeslam Mamoune   +4 more
doaj   +1 more source

Comparison of Power and Thrust Performance for a Fixed and Floating Offshore Wind Turbine

Wind Energy, Volume 29, Issue 6, June 2026.
ABSTRACT Floating offshore wind turbines have been identified as a critical technology for sustainable electricity generation. Wind resource assessment is used to determine optimal locations for floating wind farms. However, current methodologies do not account for performance differences between fixed and floating turbines due to wind‐ and wave ...
Jackson P. Hardin, Federico Zilic de Arcos, Thomas A. A. Adcock, Emma C. Edwards   +3 more
wiley   +1 more source