2016
DOI: 10.1016/j.renene.2015.07.075
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Holistic performance analysis and turbine-induced damping for an OWC wave energy converter

Abstract: a b s t r a c tAlthough oscillating water column (OWC) systems are one of the most studied types of wave energy converter, developing a method for selecting the optimum turbine for an OWC at a given sitedi.e., subjected to a particular wave climatedremains a current research topic. The objective of this work is to develop and apply a methodology for determining the optimum turbine-induced damping, i.e., that which maximises the performance of the conversion from wave to pneumatic energy, in an OWC equipped wit… Show more

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Cited by 68 publications
(24 citation statements)
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“…On the other hand, over recent years a gamut of Wave Energy Converters (WECs) are steadily progressing towards a commercial stage [4,6]. They are based on different principles of operation [7] namely: wave activated bodies [8]; overtopping devices [9] and oscillating water columns [10]. In view of this international interest and investment on R&D, wave farms are likely to be deployed in the coming years.…”
Section: Introductionmentioning
confidence: 99%
“…On the other hand, over recent years a gamut of Wave Energy Converters (WECs) are steadily progressing towards a commercial stage [4,6]. They are based on different principles of operation [7] namely: wave activated bodies [8]; overtopping devices [9] and oscillating water columns [10]. In view of this international interest and investment on R&D, wave farms are likely to be deployed in the coming years.…”
Section: Introductionmentioning
confidence: 99%
“…However, if the purpose of the OWC structure is to reduce transmitted waves, vortex-induced energy loss is beneficial to the total energy dissipation and can improve the wave protection performance. To date, most of the studies of OWC focus on the energy extraction (e.g., [23][24][25][26][27][28][29]), and there have only been a few earlier studies touching upon the vorticity characteristics of OWC (e.g., [30][31][32]). Analytical and numerical studies based on potential theory are with certain limitation in dealing with viscous effects, while numerical studies based on viscous flow theory need experimental results for validation.…”
Section: Introductionmentioning
confidence: 99%
“…To validate the solutions of wave diffraction and radiation problems in the analytical model as 19 described in Section 2, wave excitation forces/volume flux, added mass and radiation damping 20 are all evaluated by using both direct method and indirect method. By checking these results of 21 the certain hydrodynamic parameters using different methods, the solutions of wave diffraction 1 and radiation problems can be validated if good agreements are satisfied.…”
Section: Model Validation 18mentioning
confidence: 99%
“…Oscillating water column (OWC) has been recognized as one of the most effective concepts of 19 wave energy conversion, which mainly consists of a partially submerged rigid chamber and 20 exploits wave power by driving an air turbine using the oscillating motion of the inner free water numerical, and analytical methods have been widely employed and many different design of 24…”
Section: Introductionmentioning
confidence: 99%