Experimental Study of the WEPTOS Wave Energy Converter

2012 ◽  
Author(s):  
Arthur Pecher ◽  
Jens Peter Kofoed ◽  
Tommy Larsen ◽  
Tanguy Marchalot
Keyword(s):  
Experimental Study ◽  
Wave Energy ◽  
Wave Energy Converter ◽  
Power Performance ◽  
Energy Converter ◽  
Floating Structure ◽  
Incoming Wave ◽  
Novel Device ◽  
The North ◽  
Energy Absorbing

This paper presents the power performance results of the experimental study of the WEPTOS wave energy converter (WEC). This novel device combines an established and efficient wave energy absorbing mechanism with an adjustable structure that can regulate the amount of incoming wave energy and reduce loads in extreme wave conditions. This A-shaped floating structure absorbs the energy in the waves through a multitude of rotors, the shape of which is based on the renowned Salter’s Duck. These rotors pivot around a common axle, one for each leg of the structure, to which the rotors transfer the absorbed wave energy and which is connected to a common power take off system (one for each leg). The study investigates the performance of the device in a large range of wave states and estimates the performance in terms of mechanical power available to the power take off system of the WEPTOS WEC for two locations of interest. These are a generic offshore location in the Danish part of the North Sea (Point 3) and the location of the Danish wave energy centre (DanWEC) in front of Hanstholm harbour.

scholarly journals Experimental Study of a Hybrid Wave Energy Converter Integrated in a Harbor Breakwater

2019 ◽  
Vol 7 (2) ◽  
pp. 33 ◽  
Author(s):  
Paulo Rosa-Santos ◽  
Francisco Taveira-Pinto ◽  
Daniel Clemente ◽  
Tomás Cabral ◽  
Felipe Fiorentin ◽  
...  
Keyword(s):  
Experimental Study ◽  
Wave Energy ◽  
Ocean Waves ◽  
Wave Energy Converter ◽  
Hybrid Wave ◽  
Energy Converter ◽  
High Exposure ◽  
The North ◽  
Wide Range ◽  
Mound Structure

Sea ports are infrastructures with substantial energy demands and often responsible for air pollution and other environmental problems, which may be minimized by using renewable energy, namely electricity harvested from ocean waves. In this regard, a wide variety of concepts to harvest wave energy are available and some shoreline technologies are already in an advanced development phase. The SE@PORTS project aims to assess the suitability and viability of existing wave energy conversion technologies to be integrated in harbor breakwaters, in order to take advantage of their high exposure to ocean waves. This paper describes the experimental study carried out to assess the performance of a hybrid wave energy converter (WEC) integrated in the rubble-mound structure that was proposed for the extension of the North breakwater of the Port of Leixões, Portugal. The hybrid concept combines the overtopping and the oscillating water column principles and was tested on a geometric scale of 1/50. This paper is focused on the assessment of the effects of the hybrid WEC integration on the case-study breakwater, both in terms of its stability and functionality. The 2D physical model included the reproduction of the seabed bathymetry in front of the breakwater and the generation of a wide range of irregular sea states, including extreme wave conditions. The experimental results shown that the integration of the hybrid WEC in the breakwater does not worsens the stability of its toe berm blocks and reduces the magnitude of the overtopping events. The conclusions obtained are therefore favorable to the integration of this type of devices on harbor breakwaters.

Experimental study on overtopping performance of a circular ramp wave energy converter

2017 ◽  
Vol 104 ◽  
pp. 163-176 ◽  
Author(s):  
Zhen Liu ◽  
Hongda Shi ◽  
Ying Cui ◽  
Kilwon Kim
Keyword(s):  
Experimental Study ◽  
Wave Energy ◽  
Wave Energy Converter ◽  
Energy Converter

scholarly journals Design and Analysis for a Floating Oscillating Surge Wave Energy Converter

2014 ◽  
Author(s):  
Yi-Hsiang Yu ◽  
Ye Li ◽  
Kathleen Hallett ◽  
Chad Hotimsky
Keyword(s):  
Energy Conversion ◽  
Structure Analysis ◽  
Wave Energy ◽  
Integrated Design ◽  
Design Strategy ◽  
Wave Energy Converter ◽  
Wave Energy Conversion ◽  
Power Performance ◽  
Energy Converter ◽  
The Cost

This paper presents a recent study on the design and analysis of an oscillating surge wave energy converter (OSWEC). A successful wave energy conversion design requires balance between the design performance and cost. The cost of energy is often used as the metric to judge the design of the wave energy conversion (WEC) system, which is often determined based on the device’s power performance; the cost of manufacturing, deployment, operation, and maintenance; and environmental compliance. The objective of this study is to demonstrate the importance of a cost-driven design strategy and how it can affect a WEC design. A set of three oscillating surge wave energy converter designs was analyzed and used as examples. The power generation performance of the design was modeled using a time-domain numerical simulation tool, and the mass properties of the design were determined based on a simple structure analysis. The results of those power performance simulations, the structure analysis, and a simple economic assessment were then used to determine the cost-efficiency of selected OSWEC designs. Finally, we present a discussion on the environmental barrier, integrated design strategy, and the key areas that need further investigation.

Experimental study on the performance of a floating array-point-raft wave energy converter under random wave conditions

2019 ◽  
Vol 139 ◽  
pp. 538-550 ◽  
Author(s):  
Shaohui Yang ◽  
Hongzhou He ◽  
Hu Chen ◽  
Yongqing Wang ◽  
Hui Li ◽  
...  
Keyword(s):  
Experimental Study ◽  
Wave Energy ◽  
Wave Energy Converter ◽  
Random Wave ◽  
Energy Converter ◽  
Wave Conditions

The Experimental Study about Kinetic Change of Water Surface in the Chambers for Wave Energy Converter

2014 ◽  
Vol 17 (2) ◽  
pp. 41-47 ◽  
Author(s):  
Kesayoshi Hadano ◽  
Byung-Young Moon ◽  
Seong-Beom Lee ◽  
Kwang-Jung Kim
Keyword(s):  
Experimental Study ◽  
Wave Energy ◽  
Water Surface ◽  
Wave Energy Converter ◽  
Energy Converter
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