Wave power extraction by an axisymmetric oscillating-water-column converter supported by a coaxial tube-sector-shaped structure
An analytical theory is developed to study the effects of a coaxial tube-sector-shaped supporting structure on the conversion efficiency of a suspended, circular OWC converter. An eigen-function expansion method is employed in a cylindrical coordinate system to study wave interaction with an OWC con...
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sg-ntu-dr.10356-1012222020-03-07T11:43:36Z Wave power extraction by an axisymmetric oscillating-water-column converter supported by a coaxial tube-sector-shaped structure Deng, Zhengzhi Huang, Zhenhua Law, Adrian Wing-Keung School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering An analytical theory is developed to study the effects of a coaxial tube-sector-shaped supporting structure on the conversion efficiency of a suspended, circular OWC converter. An eigen-function expansion method is employed in a cylindrical coordinate system to study wave interaction with an OWC converter in finite depth of water. Effects of the supporting structure, OWC dimensions, wave direction on energy conversion efficiency, and optimization of power-takeoff devices are discussed. Our results show that the coaxial tube-sector-shaped support with an opening in the range of π/2–5π/4 can significantly increase the conversion efficiency and widen the frequency range over which the conversion efficiency is high. 2013-10-23T06:16:19Z 2019-12-06T20:35:22Z 2013-10-23T06:16:19Z 2019-12-06T20:35:22Z 2013 2013 Journal Article Deng, Z. Z., Huang, Z. H.,& Law, A. W.-K. (2013). Wave power extraction by an axisymmetric oscillating-water-column converter supported by a coaxial tube-sector-shaped structure. Applied ocean research, 42, 114-123 0141-1187 https://hdl.handle.net/10356/101222 http://hdl.handle.net/10220/16713 10.1016/j.apor.2013.05.006 en Applied ocean research |
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DRNTU::Engineering::Civil engineering Deng, Zhengzhi Huang, Zhenhua Law, Adrian Wing-Keung Wave power extraction by an axisymmetric oscillating-water-column converter supported by a coaxial tube-sector-shaped structure |
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An analytical theory is developed to study the effects of a coaxial tube-sector-shaped supporting structure on the conversion efficiency of a suspended, circular OWC converter. An eigen-function expansion method is employed in a cylindrical coordinate system to study wave interaction with an OWC converter in finite depth of water. Effects of the supporting structure, OWC dimensions, wave direction on energy conversion efficiency, and optimization of power-takeoff devices are discussed. Our results show that the coaxial tube-sector-shaped support with an opening in the range of π/2–5π/4 can significantly increase the conversion efficiency and widen the frequency range over which the conversion efficiency is high. |
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School of Civil and Environmental Engineering |
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School of Civil and Environmental Engineering Deng, Zhengzhi Huang, Zhenhua Law, Adrian Wing-Keung |
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Article |
author |
Deng, Zhengzhi Huang, Zhenhua Law, Adrian Wing-Keung |
author_sort |
Deng, Zhengzhi |
title |
Wave power extraction by an axisymmetric oscillating-water-column converter supported by a coaxial tube-sector-shaped structure |
title_short |
Wave power extraction by an axisymmetric oscillating-water-column converter supported by a coaxial tube-sector-shaped structure |
title_full |
Wave power extraction by an axisymmetric oscillating-water-column converter supported by a coaxial tube-sector-shaped structure |
title_fullStr |
Wave power extraction by an axisymmetric oscillating-water-column converter supported by a coaxial tube-sector-shaped structure |
title_full_unstemmed |
Wave power extraction by an axisymmetric oscillating-water-column converter supported by a coaxial tube-sector-shaped structure |
title_sort |
wave power extraction by an axisymmetric oscillating-water-column converter supported by a coaxial tube-sector-shaped structure |
publishDate |
2013 |
url |
https://hdl.handle.net/10356/101222 http://hdl.handle.net/10220/16713 |
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1681049652523171840 |