Results 71 to 80 of about 322 (180)
Can Tidal Current Energy Provide Base Load?
Tidal energy belongs to the class of intermittent but predictable renewable energy sources. In this paper, we consider a compact set of geographically diverse locations, which have been assessed to have significant tidal stream energy, and attempt to ...
Simone Giorgi, John V. Ringwood
doaj +1 more source
Comparison of experimental and model‐predicted erosion rates for carbon fibre‐reinforced polymer (CFRP) and glass fibre‐reinforced polymer (GFRP) under low‐velocity (2 m/s) and at varying angles and sand concentrations (0.0, 0.05, 0.4 g/L). The results demonstrate good agreement between experimental data and model predictions across different erosive ...
Ali Al‐Darraji +4 more
wiley +1 more source
Adapting conventional tools to analyse ducted and open centre tidal stream turbines
This paper details a hydrodynamic model based on Blade Element Momentum Theory (BEMT) developed to assess ’conventional’ 3-bladed tidal stream turbines (TSTs), adapted here to analyse an ’unconventional’ case of a ducted and open centre device ...
S. Allsop +3 more
doaj +1 more source
A Conceptual Framework and Methods for Studying the Connectivity of Fishes
ABSTRACT Connectivity is a multifaceted concept that has important implications for the management and conservation of marine and freshwater fishes. We developed a conceptual framework that encompasses multiple, interrelated categories of connectedness, including landscape (e.g., structural, functional) connectivity and ecological (e.g., trophic ...
Jordanna N. Bergman +18 more
wiley +1 more source
Operational coastal ocean modelling for tidal stream turbine arrays
Operational ocean models are widely applied for Earth and ocean observation for real-time predictions of ocean processes at large scales. Adaptations of these systems could cater more specific engineering and finer, metre-scale, applications. With this in mind, we consider the operational modelling for tidal stream turbine arrays, where multiple scales
Nguyen Q. Chien +6 more
openaire +2 more sources
The Variation in Wake Structure of a Tidal Stream Turbine with Flow Velocity [PDF]
A combined Blade Element Momentum - Computational Fluid Dynamics (BEM-CFD) model is applied to a 10 m diameter tidal stream turbine blade and the supporting nacelle and tower structure in a 700 m long rectangular channel. The modelling approach is computationally efficient and is suitable for capturing the time-averaged influence of the turbine on the ...
Malki, R. +3 more
openaire +2 more sources
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
Impacts of the renewable energy transition on global plant diversity: A review
People and nature need a renewable energy transition to help address the growing, and catastrophic, effects of climate change. A sustainable energy transition involves rigorously examining the potential impacts on nature – including plant life – and creating pathways for impact mitigation that strike a clear balance between energy production and ...
Rachael V. Gallagher +7 more
wiley +1 more source
Tidal power harnesses the predictable movement of ocean tides, offering a reliable source of renewable energy that can significantly contribute to global electricity generation. This paper reviews the primary approaches adopted in tidal energy, including
Alberto Boretti, Stefania Castelletto
doaj +1 more source
Self-Tuning Inductance-Oriented Model-Free Predictive Current Control for Tidal Stream Turbines
Tidal energy is increasingly harnessed due to its high energy density, substantial reserves, and reliable predictability. However, marine fouling on turbine blades adds weight and induces asymmetric system loads; prolonged operation exacerbates generator
Mengjia Cui +4 more
doaj +1 more source

