Results 11 to 20 of about 699,521 (355)

Complementary Power Control for Doubly Fed Induction Generator-Based Tidal Stream Turbine Generation Plants

open access: yesEnergies, 2017
The latest forecasts on the upcoming effects of climate change are leading to a change in the worldwide power production model, with governments promoting clean and renewable energies, as is the case of tidal energy.
Khaoula Ghefiri   +4 more
doaj   +1 more source

Experimental Study of Small Scale Hybrid Hot Spring Thermal Energy Conversion

open access: yesNihon Kikai Gakkai ronbunshu, 2023
Japan has a huge geothermal resource with geothermal power generation capacity of about 550 MWe. The hot water geothermal resources in Japan are mostly in the range of 53-120 °C.
Takafumi MORISAKI   +2 more
doaj   +1 more source

Oscillating Water Column Geometrical Factors and System Performance: A Review

open access: yesIEEE Access, 2022
Ocean waves that impact along the coast are among the most promising renewable energy sources that can be extracted from the environment. The ocean’s energy can be extracted by a few methods and converted from kinetic energy into electrical energy
Dzul Hafez Yacob   +4 more
doaj   +1 more source

Marine Renewable Energy Policy: Some US and International Perspectives Compared [PDF]

open access: yesOceanography, 2010
This article describes the policy framework for siting, permitting, and developing offshore renewable energy facilities in the United States. It also highlights features of regulatory programs in other countries and makes some comparisons. Initially, the
Michelle E. Portman
doaj  

Effects of Hull Shape on Primary Conversion Characteristics of a Floating OWC ”Backward Bent Duct Buoy”

open access: yesJournal of Fluid Science and Technology, 2008
Backward Bent Duct Buoy (BBDB) is a type of oscillating water column (OWC) wave energy converter invented by Masuda. BBDB is said to have superior primary conversion efficiency with maintaining small mooring costs.
Kazutaka TOYOTA   +3 more
doaj   +1 more source

Hydrokinetic Power Potential in Spanish Coasts Using a Novel Turbine Design

open access: yesJournal of Marine Science and Engineering, 2023
Nowadays, there is great concern about obtaining clean energy. Governments around the world are boosting renewable energy resources. Oceans provide abundant renewable energy resources, including tidal, wave, and current energy.
Mahmoud I. Ibrahim, María José Legaz
doaj   +1 more source

Ocean Space, Ocean Place: The Human Dimensions of Wave Energy in Oregon [PDF]

open access: yesOceanography, 2010
The Pacific Ocean is becoming valuable real estate. Fights over this space resemble those of the gold rush. Decision makers require data to integrate new uses (wave energy) with existing uses (commercial/recreational).
Flaxen Conway   +6 more
doaj  

Theoretical and Experimental Study of the Torque Impact and Shaft Response during the Rapid Engaging Process of a Gas Turbine

open access: yesShock and Vibration, 2022
Gas turbines produce torque impacts during the rapid engaging process, which could obviously affect the safety of the propulsion shafting. To analyze the impact load and the corresponding response of a shaft, a calculation method is proposed for the ...
Hao Chen   +4 more
doaj   +1 more source

Large Eddy Simulation of Flow Characteristics around Cylinders with Crosswise and Streamwise Arrangements in Ocean Energy

open access: yesEnergies, 2023
The flow around cylinders is one of the most fundamental phenomena in extracting wave energy from ocean waves. Compared with flows around a single cylinder, the investigation of flows around multiple cylinders is still limited and requires further ...
Weiming Zhai   +4 more
doaj   +1 more source

On Wind‐Driven Energetics of Subtropical Gyres

open access: yesJournal of Advances in Modeling Earth Systems, 2021
The flow of energy in the wind‐driven circulation is examined in a combined theoretical and numerical study. Based on a multiple‐scale analysis, we find the mesoscale field in the ocean interior is strongly affected by, but does not feed back onto, the ...
Q. Jamet   +4 more
doaj   +1 more source

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