파력발전용 가변수주진동장치의 운동에 대한 실험적 연구(2. 다수 부유체)
Experimental study on motions of VLCO for wave power generation (2. Multiple floating bodies)
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초록
The structure of a variable liquid column oscillator(VLCO) is analogous to that of the tuned liquid column damper used to suppress oscillatory motion in large structures like tall buildings and cargo ships. The VLCO is a system for absorbing the high kinetic energy of the accelerated motions of multiple floating bodies using an air-spring effect produced the installation of inner air chambers. Thus, a VLCO can improve the energy efficiency of the activating object type of wave energy converters made by thePelamis Company. In this research, anexperiment was performed in two cases: with the top valves closed and open. The floating bodies were connected byhinges. The effect of the internal flow was estimatedby comparing the results for the closed and open valves.
Abstract
The structure of a variable liquid column oscillator(VLCO) is analogous to that of the tuned liquid column damper used to suppress oscillatory motion in large structures like tall buildings and cargo ships. The VLCO is a system for absorbing the high kinetic energy of the accelerated motions of multiple floating bodies using an air-spring effect produced the installation of inner air chambers. Thus, a VLCO can improve the energy efficiency of the activating object type of wave energy converters made by thePelamis Company. In this research, anexperiment was performed in two cases: with the top valves closed and open. The floating bodies were connected byhinges. The effect of the internal flow was estimatedby comparing the results for the closed and open valves.
참고문헌 (4)
- "Pelamis Brochure" (2009)[URL]
- Parker, R. P. M., "Energy and Carbon Audit of an Offshore Wave Energy Converter", Proc. IMechE, 221, pp.1119~1130 (2007)
- 양동순, "가변 수주진동장치를 이용한 고효율 파력발전에 관한 연구", 한국해양공학회지, 23(5), pp.15~24 (2009), 한국해양공학회
- Cho, B. H., "Modeling and Control of a 75 kW Class Variable Liquid-column Oscillator for Highly Efficient Wave Energy Converter", Journal of Ocean Engineering, 38, pp.436~443 (2011)