Analysis and Design of a Wave Energy Conversion Buoy

다국어 초록 (Multilingual Abstract)

In the sea various methods have been conducted to capture wave energy which include the use of pendulums, pneumatic devices,
etc. Floating devices, such as a cavity resonance device take advantages of both the water motion and the wave induced motions of the
floating body itself. The wave energy converter is known commercially as the WAGB(Wave Activated Generator Buoy) and is used in
some commercially available buoys to power navigation aids such as lights and horns. This wave energy converter consists of a circular
flotation body which contains a vertical water column that has free communication with the sea. A theoretical analysis of this power
generated by a pneumatic type wave energy converter is performed and the results obtained from the analysis are used for a real wave
energy converter buoy. This paper is shown to have an optimum value for which maximum power is obtained at a given resonant wave
period. Also, the length of the internal water column corresponds to that of the water mass in the water column. If designed properly,
wave energy converter can take advantage not only of the cavity resonance, but also of the heaving motion of the buoy. Finally, simulation
is performed with a LabVIEW program and the simulation results are applied to a wave energy simulator for modifying design data for
a wave energy converter.

다국어 초록 (Multilingual Abstract)

In the sea various methods have been conducted to capture wave energy which include the use of pendulums, pneumatic devices,
etc. Floating devices, such as a cavity resonance device take advantages of both the water motion and the wave induced motions of the
floating body itself. The wave energy converter is known commercially as the WAGB(Wave Activated Generator Buoy) and is used in
some commercially available buoys to power navigation aids such as lights and horns. This wave energy converter consists of a circular
flotation body which contains a vertical water column that has free communication with the sea. A theoretical analysis of this power
generated by a pneumatic type wave energy converter is performed and the results obtained from the analysis are used for a real wave
energy converter buoy. This paper is shown to have an optimum value for which maximum power is obtained at a given resonant wave
period. Also, the length of the internal water column corresponds to that of the water mass in the water column. If designed properly,
wave energy converter can take advantage not only of the cavity resonance, but also of the heaving motion of the buoy. Finally, simulation
is performed with a LabVIEW program and the simulation results are applied to a wave energy simulator for modifying design data for
a wave energy converter.

참고문헌 (Reference)

1 McCorimick, M. E., "Ocean Wave Energy Conversion"

2 Hong, D. C., "Numerical study of the motions and drift force of a floating OWC device" 31 : 139-164, 2004

3 Korde, U. A., "Efficient primary energy conversion in irregular waves" 26 : 625-651, 2007

4 Thakker, A., "Effects of turbine damping on performance of an impulse turbine for wave energy conversion under different sea conditions using numerical simulation techniques" 29 : 2133-2151, 2004

5 McCormick, M. E., "Analysis of a Wave Energy Conversion Bouy" 8 : 77-82, 1974

6 McCormick, M. E., "An Experimental Study of a Wave-Energy Conversion Buoy" 9 : 40-42, 1975

7 McCormick, M. E., "A Modified Linear Analysis of a Wave-Energy conversion Buoy" 3 : 133-144, 1976