scholarly journals Shaping array design of marine current energy converters through scaled experimental analysis

Energy ◽  
2013 ◽  
Vol 59 ◽  
pp. 83-94 ◽  
Author(s):  
A.S. Bahaj ◽  
L.E. Myers
Keyword(s):  
Experimental Analysis ◽  
Array Design ◽  
Marine Current ◽  
Current Energy ◽  
Energy Converters

Foundation-based flow acceleration structures for marine current energy converters

2011 ◽  
Vol 5 (4) ◽  
pp. 287 ◽  
Author(s):  
J. Giles ◽  
L. Myers ◽  
A. Bahaj ◽  
J. O'Nians ◽  
B. Shelmerdine
Keyword(s):  
Flow Acceleration ◽  
Marine Current ◽  
Acceleration Structures ◽  
Current Energy ◽  
Energy Converters

scholarly journals Marine Current Energy Converters to Power a Reverse Osmosis Desalination Plant

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2880 ◽  
Author(s):  
Jennifer Leijon ◽  
Johan Forslund ◽  
Karin Thomas ◽  
Cecilia Boström
Keyword(s):  
Indian Ocean ◽  
Reverse Osmosis ◽  
Western Indian Ocean ◽  
Electricity Production ◽  
Water Storage Capacity ◽  
Desalination Plant ◽  
Marine Current ◽  
Current Energy ◽  
Reverse Osmosis Desalination ◽  
Energy Converters

Some countries are facing issues on freshwater and electricity production, which can be addressed with the use of renewable energy powered desalination systems. In the following study, a reverse osmosis desalination plant powered by marine current energy converters is suggested. The marine current energy converters are designed at Uppsala University in Sweden, specifically for utilizing low water speeds (1–2 m/s). Estimations on freshwater production for such a system, in South Africa, facing the Indian Ocean was presented and discussed. It is concluded that the desalination plant cannot by itself supply freshwater for a population all the time, due to periods of too low water speeds (<1 m/s), but for 75% of the time. By using ten marine current energy converters, each with a nominal power rating of 7.5 kW, combined with a reverse osmosis desalination plant and water storage capacity of 2800 m3, it is possible to cover the basic freshwater demand of 5000 people. More studies on the hydrokinetic resource of the Western Indian Ocean, system cost, technology development, environmental and social aspects are necessary for more accurate results.

scholarly journals Marine current energy assessment and the hydrodynamic design of the hydrokinetic turbine for the Moroccan Mediterranean Coast

2021 ◽  
pp. 014459872098662
Author(s):  
Salma Hazim ◽  
Abdelouahab Salih ◽  
Mourad Taha Janan ◽  
Ahmed El Ouatouati ◽  
Abdellatif Ghennioui
Keyword(s):  
Electrical Energy ◽  
Mediterranean Coast ◽  
Electricity Production ◽  
Blade Element Theory ◽  
Hydrokinetic Turbine ◽  
Marine Current ◽  
Current Resource ◽  
Suitable Area ◽  
The Impact ◽  
Current Energy

Generating electricity through renewable energies is growing increasingly to reduce the huge demand on electricity and the impact of fossil energies on the environment, the most common sources forms used are: the wind, the sun, the photovoltaic and the thermal, without forgetting hydropower by the bays of dams. Fortunately, 70% of our planet is covered by the seas and oceans, this area constitutes a huge potential for electricity production to be exploited. The scientific advances of recent years allow a better exploitation of these resources especially the marine current due to its reliability and predictability. The marine current energy is extracted using a hydrokinetic turbine (HKT) which transform the kinetic energy of water into an electrical energy. The exploitation of this resource needs in the first step the assessment of marine currents in the study area for implementing the HKT, and the second step is designing an adequate technology. The main goal of this study is the assessment of the marine current resource on the Moroccan Mediterranean coast to evaluate the suitable area to implement the HKT, and to determine the marine current speed intensities at different depths. As well as, to estimate an average potential existing in the site. Moreover, we will conduct a study based on the results of the assessment that was made to design a horizontal axis marine current turbine (HAMCT). Two hydrofoil profile were considered to design a HAMCT using the Blade Element Theory (BEM) and calculating their performances adapted to the site conditions Naca4415 and s8052. In addition, a comparison was made between this two HAMCT hydrofoil profile for deciding the best one for implementing in the studied area.

scholarly journals Status of Marine Current Energy Conversion in China

2021 ◽  
Vol 4 (1) ◽  
pp. 11-23
Author(s):  
Hongwei Liu ◽  
AbuBakr S. Bahaj
Keyword(s):  
Energy Conversion ◽  
Policy Framework ◽  
Chinese Government ◽  
Renewable Energy Systems ◽  
Technology Deployment ◽  
Prototype Development ◽  
Marine Energy ◽  
The Status ◽  
Marine Current ◽  
Current Energy

Marine current energy conversion (MCEC) technologies are promising renewable energy systems with some full scale and semi-commercial turbines constructed and deployed in several countries around the world. In this work, we present the status of marine current energy and systems in China and policies geared to support these. Over the past ten years the Chinese government has provided a policy framework and financial supports for the development of MCEC technologies of various design philosophies which has resulted in significant technology deployment at sea. A review of these technologies – which have turbine capacities in the range 20 kW to 650 kW, mostly tested at sea – is presented in the paper. In addition, the paper also discusses Chinese plans for marine energy test sites at sea to support prototype development and testing and concludes with a view of future prospects for the marine energy technology deployment in China.

scholarly journals Experimental analysis of wave energy converters concentrically attached on a floating offshore platform

2020 ◽  
Vol 152 ◽  
pp. 1171-1185 ◽  
Author(s):  
M. Kamarlouei ◽  
J.F. Gaspar ◽  
M. Calvario ◽  
T.S. Hallak ◽  
M.J.G.C. Mendes ◽  
...  
Keyword(s):  
Wave Energy ◽  
Experimental Analysis ◽  
Offshore Platform ◽  
Wave Energy Converters ◽  
Energy Converters
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