Abstract
In this chapter, considerable and promising designs have been investigated as wave energy conversion systems. A new design is introduced to the wave energy conversion system to produce power from regular and irregular waves. Laboratory experiments have been conducted for the Wave Hunter system in the wave tank of the Fluid Dynamics and Ship Theory Institute (FDS) of the Hamburg University of Technology. The experimental tests are done for two floats with different designs. The first one with 50 cm in diameter with a conical shape and inverted cup, the second one is 40 cm with the same design of 50 cm with adding a baffle in the lower part. The results showed that that float indicates a significant efficiency especially the 40 cm buoy with 40% in regular waves instead of 33% for 50 cm float, this is because of the design of the float. This float is characterized by baffles touching the surface of the water as wings. This is leading to the increase of Froude-Krylov and Drag forces in the vertical direction. Finally testing the system in irregular waves to indicate how it is efficient in the real sea condition. The experiments of the irregular waves are done for different wave characteristics of two models JONSWAP and P-M models. The float of 50 cm is tested in these waves and gets an efficiency of 38% as average for all conditions which are higher than any system with the same configurations around the world. These results encourage us to use this system to be installed in real sea conditions for wave energy conversion.
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Ramadan, A., Mohamed, M.H. (2022). Direct Absorber for Wave Energy Conversion. In: Samad, A., Sannasiraj, S., Sundar, V., Halder, P. (eds) Ocean Wave Energy Systems. Ocean Engineering & Oceanography, vol 14. Springer, Cham. https://doi.org/10.1007/978-3-030-78716-5_3
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