Ocean Systems Engineering

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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)
  • Received : 2013.11.25
  • Accepted : 2013.12.08
  • Published : 2013.12.25
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Abstract

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.

Keywords

References

  1. Abramowizt, M.A. and Stegun, I. (1964), Handbook of Mathematical Functions, Dover Publications, New York, NY, USA.
  2. Camporeale, S.M., Filianoti, P. and Torresi, M. (2011), "Performance of a Wells turbine in an OWC device in comparison to laboratory tests", Proceedings of the 9th European Wave and Tidal Energy Conference, Southampton, UK.
  3. Chakrabarti, S.K. (1987), Hydrodynamics of offshore structures. WIT Press, Southampton, UK.
  4. Cho, I.H. (2002), "Wave energy absorption by a circular oscillating water column device", J. Korean Soc. Coast. Ocean Engineers, 14(1), 8-18.
  5. Dean, R.G. and Dalrymple, R.A. (1984), Water wave mechanics for engineers and scientists, World Scientific Publishing, Singapore.
  6. Evans, D.V. (1982), "Wave-power absorption by systems of oscillating surface pressure distributions", J. Fluid Mech., 114, 481-499. https://doi.org/10.1017/S0022112082000263
  7. Evans, D.V. and Porter, R. (1995), "Hydrodynamic characteristics of an oscillating water column device", Appl. Ocean Res., 17, 155-164. https://doi.org/10.1016/0141-1187(95)00008-9
  8. Evans, D.V. and Porter, R. (1997), "Efficient calculation of hydrodynamic properties of OWC-type devices", J. Offshore Mech. Arct., 119, 210-218. https://doi.org/10.1115/1.2829098
  9. Falnes, F. (2002), Ocean waves and oscillating systems, Cambridge University Press, Cambridge, UK.
  10. Faltinsen, O.M. (1990), Sea loads on ships and offshore structures, Cambridge University Press, Cambridge, UK.
  11. Brennan, F.P., Falzarano, J.M., Gao, Z., Landet, E., Boulluec, M.L., Rim, C.W., Sirkar, J., Sun, L., Suzuki, H., Thiry, A., Trarieux, F. and Wang, C.M. (2012), "Offshore renewable energy", Proceedings of the 18th International Ship and Offshore Structures Congress, Rostock, Germany.
  12. Garrett, C.J.R. (1970), "Bottomless harbours", J. Fluid Mech., 43(3), 433-449. https://doi.org/10.1017/S0022112070002495
  13. Garriga, O.S. and Falzarano, J.M. (2008), "Water wave interaction on a truncated vertical cylinder", J. Offshore Mech. Arct., 130, 031002(1-8). https://doi.org/10.1115/1.2904941
  14. Garriga, O.S. (2003), Water waves and marine structure interaction, Master's thesis, University of New Orleans, New Orleans.
  15. Gato, L. and Falcao, A.F. de O. (1988), "Aerodynamics of the wells turbine", Int. J. Mech. Sci., 30(6), 383-395. https://doi.org/10.1016/0020-7403(88)90012-4
  16. Haberman, R. (2004), Applied partial differential equations with fourier series and boundary value problems, Pearson Education, Upper Saddle River, NJ.
  17. Karami, V., Ketabdari, M.J. and Akhtari, A.K. (2012), "Numerical modeling of oscillating water column wave energy convertor", Int. J. Adv. Renew. Energy Res.., 1(4), 196-206.
  18. Koo, W. and Kim, M.H. (2010), "Nonlinear time-domain simulation of a land-based oscillating water column", J. Waterw. Port C. - ASCE, 136(5), 276-285. https://doi.org/10.1061/(ASCE)WW.1943-5460.0000051
  19. Koo, W.C. and Kim, M.H. (2012), "A time-domain simulation of an OWC (Oscillating Water Column) with irregular waves", Ocean Syst. Eng., 2(2), 147-158. https://doi.org/10.12989/ose.2012.2.2.147
  20. Linton, C.M. and Evans, D.V. (1992), "The radiation and scattering of surface waves by a vertical circular cylinder in a channel", Philos. T. R. Soc. Lond. A., 338, 325-357. https://doi.org/10.1098/rsta.1992.0011
  21. Malmo, O. and Reitan, A. (1985), "Wave-power absorption by an oscillating water column in a channel", J. Fluid Mech., 158, 153-175. https://doi.org/10.1017/S0022112085002592
  22. Sarmento, A.J.N.A. and Falcao, A.F. de O. (1985), "Wave generation by an oscillating surface pressure and its application in wave-energy extraction", J. Fluid Mech., 150, 467-485. https://doi.org/10.1017/S0022112085000234
  23. Wang, H. (2013), Wave energy extraction from an oscillating water column in a truncated circular cylinder, Master Thesis, Texas A&M University.

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