Journal ArticleDOI
Current status of self rectifying air turbines for wave energy conversion
Toshiaki Setoguchi,Manabu Takao +1 more
TLDR
In this article, a review of the state of the art on self rectifying air turbines, which could be used for wave energy conversion, has been presented, and the overall performances of the turbines under irregular wave conditions, which typically occur in the sea, have been evaluated numerically and compared from the viewpoints of their starting and running characteristics.About:
This article is published in Energy Conversion and Management.The article was published on 2006-09-01. It has received 221 citations till now. The article focuses on the topics: Wells turbine & Turbine.read more
Citations
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Journal ArticleDOI
Performance of an Ocean Energy Conversion System with DFIG Sensorless Control
TL;DR: In this paper, a Luenberger-based observer is considered and the effectiveness of the proposed control is shown by numerical simulations, which provides better performance since it increases power extraction in the sense that it allows a more reliable and robust performance of the plant, which is even more relevant in a hostile environment as the ocean.
Journal ArticleDOI
Intra-annual wave resource characterization for energy exploitation: A new decision-aid tool
TL;DR: A novel decision-aid tool, iWEDGE (intra-annual Wave Energy Diagram GEnerator) is developed and implemented to a coastal region of interest, the Death Coast (Spain), one of the regions in Europe with the largest wave resource.
Journal ArticleDOI
Rotational Speed Optimization in Oscillating Water Column Wave Power Plants Based on Maximum Power Point Tracking
TL;DR: This paper focuses on the implementation of a novel MPPT control approach for the OWC systems in order to optimize the power delivered to the grid and successfully matches the optimum rotational speed, allowing maximum active power generation.
Journal ArticleDOI
Effect of duct geometry on Wells turbine performance
S. Shaaban,A.A. Hafiz +1 more
TL;DR: In this article, the authors proposed the use of a symmetrical duct in the form of a venturi tube with turbine rotor located at throat to enhance the turbine performance, and the effects of duct area ratio and duct angle are investigated in order to optimize Wells turbine performance.
Journal ArticleDOI
Constructal Theory, Adaptive Motion, and Their Theoretical Application to Low-Speed Turbine Design
Asfaw Beyene,James Peffley +1 more
TL;DR: In this article, the authors summarize some of these findings, bridging constructal theory and adaptive motions, with emphasis on their application, and present results of a research effort made by the writers to incorporate these concepts into low Reynolds number flexible turbine design.
References
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Journal ArticleDOI
The wells air turbine for wave energy conversion
TL;DR: In this article, the performance of a single plane biplane Wells turbine with or without guide vanes is compared with a wave energy device based on the principle of the oscillating water-air column.
Overview and Initial Operational Experience of the LIMPET Wave Energy Plant
TL;DR: The LIMPET wave energy device was constructed on the island of Islay, Scotland as mentioned in this paper, which comprises a rectangular inclined OWC that ducts the generated airflow through two contra-rotating Well's turbines, each coupled to a 250kW induction generator giving a 500kW maximum power output.
Journal ArticleDOI
Aerodynamics of the wells turbine
Luís M.C. Gato,A.F. de O. Falcão +1 more
TL;DR: In this paper, the aerodynamic performance of the Wells turbine was investigated using a streamline curvature throughflow method and compared with analytically obtained results from a linear actuator disk model.
The Offshore Floating Type Wave Power Device ”Mighty Whale” Open Sea TestsPerformance of The Prototype –
TL;DR: The Mighty Whale is a floating wave power device based on the Oscillating Water Column (OWC) principle, which converts wave energy into electric energy, and produces a relatively calm sea area behind.