Browse > Article

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

Hong, Seok-Won (Ocean Development System Division, KORDI)
Choi, Hark-Sun (Ocean Development System Division, KORDI)
Lew, Jae-Moon (Department of Ship and Ocean Engineering Chungnam National University)
Kim, Jin-Ha (Ocean Development System Division, KORDI)
Publication Information
Journal of Ocean Engineering and Technology / v.19, no.3, 2005 , pp. 11-17 More about this Journal
Abstract
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.
Keywords
Pneumatic Reaction Force; OWC; Forced Heave Experiments; Wave Energy; Air Chamber;
Citations & Related Records
연도 인용수 순위
  • Reference
1 홍석원 (2001). 해양에너지 이용 파력발전(60kW) 장치개발IV, 전력연구원보고서 (TR. 93GT17.T2001-579)
2 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   DOI   ScienceOn
3 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   DOI   ScienceOn
4 홍석원 (2003). 한.인도 해양에너지개발 공동연구, 한국해양연구원 연구보고서 (UCM00470-2471)
5 최학선, 홍석원, 류재문, 김진하 (2004). 'OWE형 파력발전 공기챔버의 공기감쇄력 실험 연구', 한국해양공학회지, 제18권, 제4호 pp 8-14
6 McCormick, M.E. (1981). Ocean Wave Energy Conversion, A Wilely - Interscience Publication
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 JAMSTEC (2004). Wave Energy Technology
9 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
10 White. F.M. (1974). Viscous Fluid Flow, McGraw-Hill Inc., pp 141-145