Results 51 to 60 of about 322 (180)

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

Misplaced fears? What the evidence reveals of the ecological effects of tidal power generation

Ecological Solutions and Evidence
Tidal energy is a dependable and clean power source that stands as a compelling alternative to fossil fuels. Despite this promise, tidal energy projects face barriers to practical implementation, and objections to proposed schemes often stem from ...
Sylvia E. Ascher, Iris M. Gray, C. M. (Tilly) Collins   +2 more
doaj   +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

Comparison of unidirectional and bidirectional airfoils in a tidal stream turbine

IOP Conference Series: Materials Science and Engineering, 2021
Abstract Tidal stream turbines offer an attractive method for stable renewable energy generation. Due to the periodicity of the tidal stream, a tidal stream turbine can be designed to operate in a bidirectional manner, thereby avoiding a yaw control system.
Giljarhus, Knut Erik Teigen, Owolabi, Jibola Obafemi, Frøynes, Olav Are   +2 more
openaire   +2 more sources

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

Design of a Horizontal Axis Tidal Turbine for Less Energetic Current Velocity Profiles

Journal of Marine Science and Engineering, 2019
Existing installations of tidal-stream turbines are undertaken in energetic sites with flow speeds greater than 2 m/s. Sites with lower velocities will produce far less power and may not be as economically viable when using “conventional” ...
Job Immanuel Encarnacion, Cameron Johnstone, Stephanie Ordonez-Sanchez   +2 more
doaj   +1 more source

Research on Wake Field Characteristics and Support Structure Interference of Horizontal Axis Tidal Stream Turbine

Energies, 2023
The harnessing and utilization of tidal current energy have emerged as prominent topics in scientific inquiry, due to their vast untapped resource potential, leading to numerous investigations into the efficacy of hydrokinetic turbines under various ...
Jiayan Zhou, Huijuan Guo, Yuan Zheng, Zhi Zhang, Cong Yuan, Bin Liu   +5 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

Power Density Capacity of Tidal Stream Turbine Arrays with Horizontal and Vertical Axis Turbines

SSRN Electronic Journal, 2022
AbstractTidal and wind energy projects almost exclusively adopt horizontal axis turbines (HATs) due to their maturity. In contrast, vertical axis turbines (VATs) have received limited consideration for large-scale deployment, partly because of their earlier technology readiness level.
Pablo Ouro, Paul Dené, Patxi Garcia-Novo, Tim Stallard, Yusaku Kyozuda, Peter Stansby   +5 more
openaire   +1 more source

A Study of Circulation, Turbulence, and Tidal Stream Resources in the Taiwan Strait

Frontiers in Marine Science, 2020
The 3-D Princeton Ocean Model with tidal forcing supplied by a 2-D barotropic model was used to examine the time-depth variability and features of tidal current, turbulence, and power of tidal stream energy in the Taiwan Strait (TS).
Konstantin A. Korotenko, Peter O. Zavialov, Yang-Yih Chen, Hsien Hua Lee   +3 more
doaj   +1 more source