Results 91 to 100 of about 550,087 (272)

Contra-rotating marine current turbines : single point tethered floating system - stabilty and performance [PDF]

open access: yes, 2009
The Energy Systems Research Unit within the Department of Mechanical Engineering at the University of Strathclyde has developed a novel contra-rotating tidal turbine (CoRMaT). A series of tank and sea tests have led to the development and deployment of a
Clarke, Joseph Andrew   +4 more
core  

Economic and Technical Assessment of Wind Potential Using SARIMAX Time Series Models: Wind Speed Forecasting and Analysis

open access: yesEnergy Science &Engineering, Volume 14, Issue 2, Page 973-998, February 2026.
The wind energy potential of Khaf was evaluated for 2025 using 15 years of wind data combined with advanced forecasting models, SARIMAX and Prophet. This integrated framework enables precise estimation of wind power density and optimal turbine selection, paving the way for the efficient and sustainable development of wind farms in the region.
Mohammad Amin Valizadeh   +3 more
wiley   +1 more source

A tidal energy assessment in the strait of Messina

open access: yesEnergy Nexus
This study reports an energy assessment of a tidal power plant located in the strait of Messina (Mediterranean Sea). Tidal currents are not adequately exploited as renewable energy sources all over the world, even if their potential is not negligible and
Michele Agueci, Emiliano Pipitone
doaj   +1 more source

One-Dimensional Modelling of Marine Current Turbine Runaway Behaviour

open access: yesEnergies, 2016
If a turbine loses its electrical load, it will rotate freely and increase speed, eventually achieving that rotational speed which produces zero net torque. This is known as a runaway situation.
Staffan Lundin   +2 more
doaj   +1 more source

On the arrangement of tidal turbines in rough and oscillatory channel flow

open access: yesJournal of Fluid Mechanics, 2019
Fast tidal streams are a promising source of clean, predictable power, but the task of arranging tidal turbines for maximum power capture is complicated.
Paul A. J. Bonar   +5 more
semanticscholar   +1 more source

Shrouded Wind and Water Turbine Analytical Model Extensions for Tip Gaps, Center Bodies, and Flow Blockage

open access: yesWind Energy, Volume 29, Issue 2, February 2026.
ABSTRACT This paper provides improvements to a previously presented simple, accurate, lower order analytical model for predicting the performance of horizontal‐axis shrouded turbines for a wide range of shroud airfoil shapes varying in length, camber, and thickness. The new, extended model incorporates explicit quantitative predictions of those effects
M. J. Werle
wiley   +1 more source

Horizontal-axis tidal turbine blade loading for multi-frequency oscillatory motion [PDF]

open access: yes, 2012
This paper presents results from an experimental study which analysed the hydrodynamic response of the out-of-plane blade root bending moment for a horizontal-axis turbine exposed to multi-frequency oscillatory motion.
Day, A. H.   +3 more
core  

Chapter Tidal Turbine Generators

open access: yes, 2020
Recently, tidal stream turbines have become a preferable mode of harvesting tidal energy. The main issue for low utilization of tidal energy is the high levelized cost of energy (LCoE) from tidal stream turbines. A major reason for this is the high operation and maintenance costs for submerged installations.
Polinder, Henk   +2 more
openaire   +1 more source

Ocean Wave Energy Generators and Self‐Powered Wave Sensors Based on Triboelectric Nanogenerators

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 1, January 2026.
The key milestones of ocean wave energy‐driven triboelectric nanogenerators (TENGs) from 2015 to 2024. The development of ocean wave energy‐driven TENGs has undergone multiple stages of evolution, particularly in the design of their outer structures, with the goal of more efficiently utilizing ocean wave motion.
Yunzhong Wang, Youhong Tang
wiley   +1 more source

Potential Hydrodynamic Impacts and Performances of Commercial-Scale Turbine Arrays in the Strait of Larantuka, Indonesia

open access: yesJournal of Marine Science and Engineering, 2020
The Strait of Larantuka, with highly energetic tidal stream currents reaching speeds of up to 3−4 m/s, is a promising site for renewable electricity production from the ocean. This paper presents the results of an assessment regarding the potential
Kadir Orhan, Roberto Mayerle
doaj   +1 more source

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