STUDY OF THE OSCILLATING WATER COLOUMN (OWC) WHICH IS ONE OF THE MOST USED SYSTEMS IN CONVERTING WAVE ENERGY INTO ELECTRICAL ENERGY

Abstract

The Oscillating Water Column (OWC) system converting wave energy to electrical power have been investigated. The theoretical analysis of the power generated by the wave energy system is presented. The system is considered as twodimensional, linear boundary value problem. The system is simulated for the Marmara Sea where the significant wave height is 3.3 meters and the significant wave period is 7 seconds. Results of the theoretical analysis of the wave energy conversion system for Marmara Sea is presented.

Keywords

• Oscillating Water Column
• Wave Energy
• Wave Energy Conversion
• Water Wave Generator
• Marmara Sea
• Wave Period

References

1. Atkins, W. S. (1996). “Assessment of Design Environmental Data, TPAO, Ankara, Türkiye.
2. Bak U. (1999). Dalga Enerjisinden Elektrik Enerjisi Elde Edilmesi, Bitirme Çalışması (Graduation Project), İ.T.Ü.
3. Budal, K. and Falnes, J. (1977). “Optimum operation of improved wave-power converters.” Marine Sciences Comm. No.3, pp 133-150.
4. Clement, A., McCullen, P., Falcão, A., Fiorentino, A., Gardner, F., Hammarlund, K., Lemonis, G., Lewis, T., Nielsen, K., Petroncini, S., Pontes, M. T., Schild Phillipe, B,-O. Sjöström, O., Sørensen, H. C. and Thorpe, T. (2002). “Wave energy in Europe: current status and perspectives.” Renewable and Sustainable Energy Reviews, Vol. 6, pp. 405 431.
5. Curran, R., T. Stewart and Whittaker, T. J. T. (1997). “Design synthesis of oscillating water column wave energy converters: performance matching.” Proceedings of the Institution of Mechanical Engineers - Part A: Journal of Power and Energy, No.211, pp. 489–505.
6. Evans, D. V. (1976). “A theory for wave power absorption by oscillating bodies.” J. Fluid Mech., No. 77, pp. 1-25.
7. Evans, D.V. (1978). “The Oscillating Water Column wave energy device.” J. Inst. Maths Applics., No.22, pp. 423-33.
8. Masuda, Y. (1971). “Wave Activated Generators.” Paper presented at the International Collocium on the Exposition of the Oceans, Bordo, France.

9. McCormick, M. E. (1974). “Analysis of a Wave Energy Conversion Buoy.” Journal of Hydronautics, No.8 (3), pp. 77-82.
10. McCormick, M. E. (1976) “A modified linear analysis of a wave-energy conversion buoy.” Ocean Engineering, No.3, pp.133–144.
11. Mei, C. C. (1976). “Power extraction from water waves.” J. Ship Research, Vol. 20, pp. 63-66.
12. Morris-Thomas, M. T., Irvin, R. J. and Thiagarajan, K. P. (2007). “An Investigation into the Hydrodynamic Efficiency of an Oscillating Water Column.” Journal of Offshore Mechanics and Arctic Engineering, Vol. 129, No. 4, pp. 273.
13. Newman, J. N. (1976). “The interaction of stationary vessels with regular waves.” Proc. 11th Symposium Naval Hydrodynamics, pp. 451-501.
14. Salter, S. H. (1974). “Wave Power.” Nature, Vol. 249, No. 5459, pp. 720–724.
15. Şentürk, U. and Özdamar, A. (2012). “Wave energy extraction by an oscillating water column with a gap on the fully submerged front wall.” Applied Ocean Research, No.37, pp. 174–182.
16. TV Heath, T., V. (2012). “A review of oscillating water columns.” Philosophical Transactions of the Royal Society A: Mathematical Physical and Engineering, No. 370, pp. 235–245.
17. Zhang, Y., Zou, Q. and Greaves, D. (2012). “Air-water two-phase flow modelling of hydrodynamic performance of an oscillating water column device.” Renewable Energy, No.41, pp. 159–170.