강제동요시 OWC형 파력발전 공기챔버의 공기반력 실험연구

A Study of Pneumatic Reaction Force of Air Chamber for an OWC Type Wave Energy Device by Forced Heave Experiments

  • 홍석원 (한국해양연구원 해양개발시스템연구본부) ;
  • 최학선 (한국해양연구원 해양개발시스템연구본부) ;
  • 류재문 (충남대학교 선박해양공학과) ;
  • 김진하 (한국해양연구원 해양개발시스템연구본부)
  • 발행 : 2005.06.30

초록

The effect of frequency and amplitude of the OWC (Oscillating Water Column) motion on the nonlinear reaction forces in an air duct are studied experimentally. Experimental owe model is idealized as a simple circular cylinder with an orifice type air duct located at the middle oj the top rid. Reaction forces due to forced heave oscillation are measured and analyzed. By subtracting the effect of inertia forces and restoring forces, pneumatic damping force and added spring force are deduced. The effects of the frequency and amplitude of the heave motion are discussed. Also, the effects of solidity of the duct on the reaction forces are discussed.

키워드

참고문헌

  1. 최학선, 홍석원, 류재문, 김진하 (2004). 'OWE형 파력발전 공기챔버의 공기감쇄력 실험 연구', 한국해양공학회지, 제18권, 제4호 pp 8-14
  2. 홍석원 (2001). 해양에너지 이용 파력발전(60kW) 장치개발IV, 전력연구원보고서 (TR. 93GT17.T2001-579)
  3. 홍석원 (2003). 한.인도 해양에너지개발 공동연구, 한국해양연구원 연구보고서 (UCM00470-2471)
  4. Hong, D.C., Hong, S.Y., and Hong, S.W. (2004). 'Numerical Study of the Motions and Drift Force of a Floating OWC Device', Ocean Engineering, Vol 31, No 2, pp 139-164 https://doi.org/10.1016/S0029-8018(03)00118-5
  5. Hong, S.W, and Kim, J.H. (2004). 'Experimental Study of a Compliant Mooring System for a Floating OWC Device of Offshore Catenary Moorings', Proc. of Int. Society of Offshore and Polar Engineers, Vol 1, pp 225-231
  6. JAMSTEC (2004). Wave Energy Technology
  7. Masuda Y. (1986). 'Experience in Pneumatic Wave Energy Conversion in Japan,' Proceeding of ASCE Specialty Conference on Utilization of Ocean Waves-Wave to Energy Conversion
  8. McCormick, M.E. (1981). Ocean Wave Energy Conversion, A Wilely - Interscience Publication
  9. Popov G. and Sankar S. (1995). 'Modelling and Analysis of Non-linear Orifice Type Damping in Vibration Isolators', J. of Sound and Vibration, Vol 183, No 5, pp 751-764 https://doi.org/10.1006/jsvi.1995.0284
  10. White. F.M. (1974). Viscous Fluid Flow, McGraw-Hill Inc., pp 141-145