Analysis of Optimal Ocean Wave Energy Conversion
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 109, Issue 2
Abstract
The performance of two single degree‐of‐freedom systems—the heaving vertical circular cylinder and the vertical oscillating water column—are theoretically studied. The systems are optimized by using impedance‐matching at the design frequency. This frequency is that of the peak of the wave energy spectrum in a wind‐generated sea. The results show that the optimized system acts as a strong antenna, attracting significantly more wave power than is incident in its body dimension. As the diameter of the system is increased the draft of the device is decreased. Thus, there is a size limit for each design sea. Furthermore, there is also a lower limit of the diameter of the device operating in restricted waters. Because of the strong antenna effect, relatively small systems can be effectively used, making the optimized wave energy conversion system cost effective.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Bretschneider, C. L., “Revised Wave Forecasting Relationships,” Proceedings, Second Conference on Coastal Engineering, Chapter 1, 1952, pp. 1–5.
2.
Budal, K., and Falnes, J., “Optimum Operation of Wave Power Converter,” Norges Techniske Hogskole, Technical Report, 1976.
3.
Clarke, R. H., and Brown, J., Diffraction Theory and Antennas, Halsted/John Wiley & Sons, Inc., New York, N.Y., 1980.
4.
Count, B. M., and Jeffreys, E. R., “Wave Power, The Primary Interface,” Proceedings, 13th Symposium on Naval Hydrodynamics, Tokyo, Japan, pp. VIII‐1‐1 to 1–9, 1980.
5.
Evans, D. V., “A Theory for Wave‐Power Absorption by Oscillating Bodies,” Journal of Fluid Mechanics, Vol. 77, 1976, pp. 1–25.
6.
Falnes, J., and Budal, K., “Wave‐Power Conversion by Point Absorbers,” Journal of Norwegian Maritime Research, Vol. 6, No. 4, 1978, pp. 2–11.
7.
Falnes, J., “Radiation Impedance Matrix and Optimum Power Absorption for Interacting Oscillators in Surface Waves,” Journal of Applied Ocean Research, Vol. 2, No. 2, pp. 15–80.
8.
Haren, P., “Optimal Design of Hagen‐Cockerell Raft,” thesis presented to the Massachusetts Institute of Technology, at Cambridge, Mass., in 1978, in partial fulfillment of the requirements for the Degree of Master of Science.
9.
Harris, D. L., “Characteristics of Wave Records in the Coastal Zone,” Waves on Beaches, R. E. Meyer, ed., Academic Press, New York, N.Y., 1972.
10.
Lighthill, J., “Two‐Dimensional Analyses Related to Wave‐Energy Extraction by Submerged Resonant Ducts,” Journal of Fluid Mechanics, Vol. 91, Part 2, 1979, pp. 253–317.
11.
Masuda, Y., and Miyazaki, T., “Wave Power Electric Generation Study in Japan,” Proceedings, BHRA Wave and Tidal Energy Symposium, Paper B6, Canterbury, Great Britain, Sept., 1978.
12.
McCormick, M. E., “Ocean Wave Energy Conversion Concepts,” Proceedings of Oceans '79, Institute of Electrical and Electronic Engineers, Sept., 1979, pp. 553–558.
13.
McCormick, M. E., “A Conceptual Design of a Counter‐Rotating Wave Energy Conversion Turbine,” U.S. Naval Academy, Report EW‐19‐78, Nov., 1978.
14.
McCormick, M., Coffey, J., and Richardson, J., “An Experimental Study of Wave Power Conversion by a Heaving, Vertical, Circular Cylinder in Restricted Waters,” Journal of Applied Ocean Science, Vol. 4, No. 2, 1982, pp. 107–112.
15.
McCormick, M., “An Analysis of Optimal Wave Energy Conversion by Two Single‐Degree‐of‐Freedom Devices,” U.S. Naval Academy, Report EW‐27‐82, Nov., 1982.
16.
Meirovitch, L., Analytical Methods in Vibrations, MacMillan Co., New York, N.Y., 1967.
17.
Omholt, T., “A Wave Activated Electric Generator,” Proceedings, Oceans '78, Institute of Electrical and Electronics Engineers, Washington, D.C., Sept., 1978, pp. 585–589.
18.
Pierson, W. J., and Moskowitz, L., “A Proposed Spectral Form for Fully Developed Wind Seas Based on the Similarity Theory of S. A. Kitaigorodskii,” Journal of Geophysical Research, Vol. 69, No. 24, Dec. 15, 1964, pp. 5181–5190.
19.
Price, W. G., and Bishop, R. E. D., “Probabilistic Theory of Ship Dynamics,” Halsted/John Wiley & Sons, Inc., New York, N.Y., 1974.
20.
Raghunathan, S. R., “The Wells Turbine,” Queen's University of Belfast, Report No. WE/80/11, 1974.
21.
Robinson, R. W., “Analysis of a Pseudo 2‐D Oscillating Water Column,” Queen's University of Belfast, Report No. WE/80/11R, 1980.
22.
Salter, S., Jeffrey, D., and Taylor, J., “The Architecture of Nodding Duck Wave Power Generators,” The Naval Architect, Jan., 1976, pp. 21–24.
23.
Shore Protection Manual, U.S. Army, U.S. Government Printing Office, No. 0822‐00077, Washington, D.C., 1973.
24.
Thompson, E. F., and Harris, D. L., “A Wave Climatology for U.S. Coastal Waters,” Proceedings, Offshore Technology Conference, Paper OTC 1693, May, 1972.
Information & Authors
Information
Published In
Copyright
Copyright © 1983 ASCE.
History
Published online: May 1, 1983
Published in print: May 1983
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.