Experimental Testing and Evaluation of WECs

Pecher, Arthur

doi:10.1007/978-3-319-39889-1_9

Cited by 6 publications

(8 citation statements)

References 6 publications

(7 reference statements)

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“…Figure 11. 3-D simulation of five flaps standing on the breakwater 𝑃 is the average wave power per unit wave-front length, therefore should be multiplied by the width of all the WEC components involved in energy conversion to be comparable with the power absorbance (Pecher, 2017). Some studies suggested that the maximum power can be captured when 𝐶 is equal to the hydrodynamic damping coefficient (Folley, 2016) or radiation damping for the theoretical estimation of power absorbance (Paolo Sammarco et al, 2016).…”

Section: Control System Framework and Calculation Of Pto Coefficientsmentioning

confidence: 99%

Multipurpose breakwater: Hydrodynamic analysis of flap-type wave energy converter array integrated to a breakwater

Saeidtehrani¹,

Karimirad

2021

Ocean Engineering

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Section: Control System Framework and Calculation Of Pto Coefficientsmentioning

confidence: 99%

Multipurpose breakwater: Hydrodynamic analysis of flap-type wave energy converter array integrated to a breakwater

Saeidtehrani¹,

Karimirad

2021

Ocean Engineering

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“…Refs. [1,10,12] provide additional information. Scales range from 1:100-1:40 in small-scale models, 1:40-1:20 in medium-scale models, 1:20-1:4 in large-scale models, and 1:4-1:1 in prototypes.…”

Section: Model Design and Testingmentioning

confidence: 99%

“…Experimental testing is essential in the development of wave energy converters (WECs). Sea trials are usually prohibitively expensive [1], and should be preceded by small-to-medium scale testing [2]. Although this does not simulate all features and performance of prototypes accurately [3], it provides a valuable source of information to researchers, developers and investors/entrepreneurs.…”

Section: Introductionmentioning

confidence: 99%

“…More recent documents summarising guidelines and giving more precise recommendations on the development of WECs can be found in Refs. [10][11][12], which also provide detailed guidance on model testing for WECs. SANDIA National Laboratory produced guidelines to assess the technology performance level (TPL) considering a wide range of factors associated with the techno-economics of extensive exploitation of wave energy [13].…”

Section: Introductionmentioning

confidence: 99%

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Wave energy converter physical model design and testing: The case of floating oscillating-water-columns

et al. 2020

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The quest for exploiting the ocean resources and understanding its behaviour has been a challenge with increasing needs for innovation and technology. Model testing is an essential step in offshore renewable energy technology development. It involves challenges that require experience and guidance. Costly mistakes might arise with the subsequent waste of time and resources. This paper presents the model design and testing processes as part of wave energy projects and the results of experimental testing of two types of oscillating-water-column (OWC) wave energy converters (WEC). The model design aims at the creation of a reduced-scale model to simulate the physical phenomena found in full-scale devices. It is a process that requires several skills and an adequate compromise among all variables. This design involves several approaches as different physical phenomena do not follow the same similarity conditions, requiring adjustments in scale, materials, and other relevant properties. Besides, the model testing process comprises the necessary planning and actions to execute the tests and post-processing of data. This process is addressed here through model design and testing of two WECs: the coaxial-duct and the sparbuoy OWCs. The configurations have been designed and studied for large-scale energy production and small-scale power in oceanographic applications. Although the devices are both OWCs, the designs exhibit significant differences. The development process of the models and results are presented for the two OWC devices. Freedecay tests, hydrodynamic performance and mooring tension results are presented and discussed. These may serve as guidelines and numerical modelling validation.

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“…After the laboratory test phase, the development of WEC requires sea trails to verify the effectiveness and reliability of the technology under real ocean conditions and refine the estimation of the levelized cost of energy (Pecher, 2017). With the increasing demand for R&D of marine energy converters, the need of a test facility in well-understood ocean environments has been increasing.…”

Section: Introductionmentioning

confidence: 99%

A Detailed Investigation Into the Wave Energy Resource at a Small-Scale Ocean Energy Test Site in China

Fang

Zhou

et al. 2022

Front. Energy Res.

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During the R&D of marine renewable energy converters, scale models are usually used in the early stages of development of marine renewable energy converters. China’s National Ocean Integrated Test Site (NOITS) is being developed by the National Ocean Technology Center (NOTC) in Weihai, Shandong Province, to facilitate testing of scaled wave and tidal energy converters in an open sea environment. This research aims to gain a detailed understanding of the wave characteristics and the wave energy resource at this site. A nested modeling system has been implemented using Simulating WAves Nearshore (SWAN) to provide a 10-year high-resolution wave hindcast between 2009 and 2019 with an approximately 60 m resolution covering the test site. Analysis of the spatio-temporal distribution of wave energy resource in NOITS reveals its strong seasonality, with the mean wave power density of >1.5 kW/m during winter and <0.2 kW/m during summer. We also performed a statistical analysis of the high and extreme wave conditions and their occurrence. By applying scaling methods to wave resources, four WECs were selected to demonstrate the testing at different scale ratios in NOITS. The results of this study provide engineering references for the design of scale wave energy converter models which target to perform open sea trials in NOITS.

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Experimental Testing and Evaluation of WECs

Cited by 6 publications

References 6 publications

Multipurpose breakwater: Hydrodynamic analysis of flap-type wave energy converter array integrated to a breakwater

Multipurpose breakwater: Hydrodynamic analysis of flap-type wave energy converter array integrated to a breakwater

Wave energy converter physical model design and testing: The case of floating oscillating-water-columns

A Detailed Investigation Into the Wave Energy Resource at a Small-Scale Ocean Energy Test Site in China

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