Ocean Systems Engineering

  • 제3권4호
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  • Pages.327-348
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  • 2013
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  • 2093-6702(pISSN)
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  • 2093-677X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Energy extraction from the motion of an oscillating water column

  • Wang, Hao (Ocean Engineering Program, Texas A&M University, College Station) ;
  • Falzarano, Jeffrey M. (Ocean Engineering Program, Texas A&M University, College Station)
  • 투고 : 2013.11.25
  • 심사 : 2013.12.08
  • 발행 : 2013.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

An Oscillating Water Column (OWC) is a relatively practical and convenient device that converts wave energy to a usable form, which is electricity. The OWC is kept inside a fixed truncated vertical cylinder, which is a hollow structure with one open end submerged in the water and with an air turbine at the top. This research adopts potential theory and Galerkin methods to solve the fluid motion inside the OWC. Using an air-water interaction model, OWC design for energy extraction from regular wave is also explored. The hydrodynamic coefficients of the scattering and radiation potentials are solved for using the Galerkin approximation. The numerical results for the free surface elevation have been verified by a series of experiments conducted in the University of New Orleans towing tank. The effect of varying geometric parameters on the response amplitude operator (RAO) of the OWC is studied and modification of the equation for evaluating the natural frequency of the OWC is made. Using the model of air-water interaction under certain wave parameters and OWC geometric parameters, a computer program is developed to calculate the energy output from the system.

키워드

참고문헌

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피인용 문헌

  1. Energy balance analysis method in oscillating type wave converter vol.3, pp.3, 2017, https://doi.org/10.1007/s40722-017-0081-y
  2. Irregular frequency removal methods: theory and applications in hydrodynamics vol.12, pp.2, 2017, https://doi.org/10.1007/s40868-017-0023-5
  3. Estimation of gap resonance relevant to side-by-side offloading vol.153, 2018, https://doi.org/10.1016/j.oceaneng.2018.01.056
  4. Towards simulating floating offshore oscillating water column converters with Smoothed Particle Hydrodynamics vol.126, 2017, https://doi.org/10.1016/j.coastaleng.2017.05.001
  5. Exploration of power take off in wave energy converters with two-body interaction vol.7, pp.2, 2017, https://doi.org/10.12989/ose.2017.7.2.089
  6. Assessment of the potential for the design of marine renewable energy systems vol.8, pp.2, 2013, https://doi.org/10.12989/ose.2018.8.2.119
  7. A wall damping method to estimate the gap resonance in side-by-side offloading problems vol.173, pp.None, 2013, https://doi.org/10.1016/j.oceaneng.2018.12.071
  8. Irregular frequency effects in the calculations of the drift forces vol.9, pp.1, 2013, https://doi.org/10.12989/ose.2019.9.1.097
  9. Oscillating water column behaviour at forward, central, and aft locations within a fixed vessel vol.236, pp.None, 2013, https://doi.org/10.1016/j.oceaneng.2021.109251