Journal ArticleDOI
Performance evaluation of a dual resonance wave-energy convertor in irregular waves
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TLDR
In this article, a new waterproof point absorber, named Dual Resonance wave-energy convertor (DR-WEC), is put forward in which two resonance frequencies can be found due to the existence of two sets of mass-spring subsystems and the influence of three mechanical parameters, i.e., the internal mass, stiffness of spring and damping of power-take off (PTO) system, on the capture width ratio is studied.About:
This article is published in Applied Ocean Research.The article was published on 2018-08-01. It has received 24 citations till now. The article focuses on the topics: Wave power & Airy wave theory.read more
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Journal ArticleDOI
Point Absorber Wave Energy Harvesters: A Review of Recent Developments
Elie Al Shami,Ran Zhang,Xu Wang +2 more
TL;DR: Point absorber wave energy harvesters as discussed by the authors is a potential solution to harvest energy from highly energetic locations around the world's oceans, however, it is not as mature as other forms of renewable energy harvesting devices, especially when it comes to commercialization, mass production, and grid integration.
Journal ArticleDOI
Study on force and wave energy conversion efficiency of buoys in low wave energy density seas
TL;DR: In this article, the authors used the underwater equivalent area to investigate the force, pitch response amplitude operator (RAO), and conversion efficiency of the buoys in irregular waves in low wave energy density seas and involved the selection of a cylindrical and a hemispherical buoy, which were applied in a sealed-buoy wave energy converter.
Journal ArticleDOI
Influence of the shape of a buoy on the efficiency of its dual-motion wave energy conversion
TL;DR: In this paper, a procedure for the geometric design of the buoy of a single-body wave energy converter (WEC) based on the characteristics of incident waves is proposed for the buoy shape and its hydrodynamic performance.
Journal ArticleDOI
Assessment of damping coefficients of power take-off systems of wave energy converters: A hybrid approach
TL;DR: In this article, a hybrid approach for the assessment of damping coefficients was proposed and applied to CECO's experimental responses, and the results demonstrated that damping coefficient were significantly affected by wave conditions, such as milder irregular waves and rougher regular waves.
Journal ArticleDOI
Numerical study of bean-float wave energy converter with float number parametrization using WEC-Sim in regular waves with the Levelized Cost of Electricity assessment for Indian sea states
TL;DR: In this paper, the authors proposed a new, bean-shaped, multi-body floating wave energy converter (BFWEC) using an open-source time-domain modeling tool called WEC-Sim (Wave Energy Converter SIMulator).
References
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Journal ArticleDOI
Wave energy utilization: A review of the technologies
TL;DR: In this article, the development of wave energy utilization since the 1970s is discussed, with a focus on the characterization of the wave energy resource; theoretical background, with especial relevance to hydrodynamics of wave absorption and control; how a large range of devices kept being proposed and studied, and how such devices can be organized into classes; the conception, design, model-testing, construction and deployment into real sea of prototypes.
Book
Sea Loads on Ships and Offshore Structures
TL;DR: In this paper, linear-wave induced motions and loads on floating structures were modeled as Second-order nonlinear problems. But the authors did not consider the effects of the wind and current on the floating structures.
Journal ArticleDOI
On the Convergence of Pattern Search Algorithms
TL;DR: The characterization of pattern search methods is exploited to establish a global convergence theory that does not enforce a notion of sufficient decrease, and is possible because the iterates of a pattern search method lie on a scaled, translated integer lattice.
Journal ArticleDOI
A review of wave energy converter technology
TL;DR: In this paper, a review of wave energy converter (WEC) technology is presented, focusing on work being undertaken within the United Kingdom, and some of the control strategies to enhance the efficiency of point absorber-type WECs.
Journal ArticleDOI
Numerical benchmarking study of a selection of wave energy converters
Aurélien Babarit,Jørgen Hals,Made Jaya Muliawan,Adi Kurniawan,Torgeir Moan,Jørgen R Krokstad +5 more
TL;DR: In this article, the mean annual power absorption of a selection of eight Wave Energy Converters (WECs) with different working principles is derived based on numerical modeling. But, despite very different working principle and dimensions, power performance of the selected devices vary much less than the average power absorption.