Results 51 to 60 of about 550,087 (272)

Harnessing Tidal Energy Using Vertical Axis Tidal Turbine

open access: yesResearch Journal of Applied Sciences, Engineering and Technology, 2013
An overview of the current design practices in the field of Renewable Energy (RE) is presented; also paper delineates the background to the development of unique and novel techniques for power generation using the kinetic energy of tidal streams and other marine currents. Also this study focuses only on vertical axis tidal turbine. Tidal stream devices
Syed Shah Khalid   +2 more
openaire   +1 more source

Tidal turbine blade load experiments for oscillatory motion [PDF]

open access: yes, 2011
This paper presents blade root bending moment measurements of a horizontal-axis tidal turbine for planar oscillatory motion, conducted in a stationary water towing tank.
Bickerton, S   +4 more
core  

Tidal Energy: The benthic effects of an operational tidal stream turbine

open access: yesMarine Environmental Research, 2017
The effect of modified flow on epifaunal boulder reef communities adjacent to the SeaGen, the world's first grid-compliant tidal stream turbine, were assessed. The wake of the SeaGen was modelled and the outputs were used in conjunction with positional and substrate descriptor variables, to relate variation in epifaunal community structure to the ...
J.P.J. O'Carroll   +3 more
openaire   +5 more sources

Design of HAWT Rotor for Non‐Uniform Inflow Conditions: A Theoretical and Experimental Approach for Shear Flow

open access: yesEnergy Science &Engineering, EarlyView.
This paper aims to provide a robust design approach for HAWTs operating in shear flow. This study fills a critical research gap by integrating BEM and vortex theories for blade design in non‐homogeneous inflow conditions. The authors of the paper made an effort to develop and test an experimentally unsophisticated model of a turbine working in shear ...
Agnieszka Dorota Woźniak   +2 more
wiley   +1 more source

Ocean Energy: Using the Ocean's Tides, Waves, and Heat to Generate Electricity [PDF]

open access: yes, 2006
Key facts: - The oceans' tides, waves, current, and heat can be used to generate electricity. These resources are renewable, because the moon's gravity drives tides, and winds create waves.

core  

The effects of surge motion on floating horizontal axis tidal turbines

open access: yesInternational marine energy journal, 2020
Wave induced motions due to actual sea state conditions will impact the performance of floating horizontal axis tidal turbine systems. This paper presents the results from numerical simulations of a 3-bladed horizontal axis tidal turbine oscillating in ...
M. Osman, R. Willden, C. Vogel
semanticscholar   +1 more source

PNNL‐TUNAMELT: Toward automating the detection of interactions with marine energy devices using acoustic camera sensors

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Acoustic cameras, or imaging sonars, are often used to monitor marine energy sites in regions where the water is too dark or turbid for optical sensing. To do so more effectively, scientists are investigating automated detection methodologies to use on these data.
Theodore Nowak   +2 more
wiley   +1 more source

The parameterisation of turbulence in the marine environment [PDF]

open access: yes, 2016
There are many problems in the fields of flow modelling around structures and tidal stream energy yield analysis which require a thorough understanding of the turbulent and time-averaged flow speeds in marine environments.
Hardisty, Jack, Jennings, Ross
core   +1 more source

Water‐Borne Erosion of Reinforced Polymer Composites: Application to Shallow Offshore Marine Environment

open access: yesPolymer Composites, EarlyView.
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

Various aspects of the exploitation of marine current energy with tidal turbines

open access: yesAnnals of "Dunărea de Jos" University of Galaţi: Fascicle XI Shipbuilding, 2019
The main purpose of this paper is to present a short review of the actual progress on the tidal energy and on the tidal energy convertors: turbines, dam systems, oscillating wings and their operation characteristics.
Aurel – Dan Maimon
doaj   +1 more source

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