A Study on Integrated OWC System within Turbine Effects
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Oscillating Water Column is one of the most widely used converting systems all over the world. The operating performance is influenced by the efficiencies of the two converting stages in the OWC chamber-turbine integrated system. In order to study the effects of the pressure drop induced by the air turbine, the experiments using the impulse turbine and the orifice device are carried out in the wave simulator test rig. The numerical simulation utilizing the orifice and porous media modules is calculated and validated by the corresponding experimental data. The numerical wave tank based on the two-phase VOF model embedded with the above modules is employed to investigate the wave elevation,pressure variation inside the chamber and the air flow velocity in the duct. The effects of the air turbine on the integrated system and interaction among the wave elevation, pressure and air flow velocities variations are investigated, which demonstrates that the present numerical model are more accurate to be employed.
Abstract
Oscillating Water Column is one of the most widely used converting systems all over the world. The operating performance is influenced by the efficiencies of the two converting stages in the OWC chamber-turbine integrated system. In order to study the effects of the pressure drop induced by the air turbine, the experiments using the impulse turbine and the orifice device are carried out in the wave simulator test rig. The numerical simulation utilizing the orifice and porous media modules is calculated and validated by the corresponding experimental data. The numerical wave tank based on the two-phase VOF model embedded with the above modules is employed to investigate the wave elevation,pressure variation inside the chamber and the air flow velocity in the duct. The effects of the air turbine on the integrated system and interaction among the wave elevation, pressure and air flow velocities variations are investigated, which demonstrates that the present numerical model are more accurate to be employed.
참고문헌 (9)
- Hong, K.Y, "Effects of Shape Parameters of OWC Chamber in Wave Energy Absorption", 17th Int Offshore and Polar Eng Conf, 통권 : 1, pp.428~433 (2007), ISOPE
- Jayashankar, V, "A Twin Unidirectional Impulse Turbine Topology for OWC Based Wave Energy Plants", Renewable Energy, 34, pp.692~698 (2009)
- ZHEN LIU, "The Application of FBNWT in Wave Overtopping Analysis", 한국해양공학회지, 22(1), pp.1~5 (2008), 한국해양공학회
- Liu, Z, "Application of Numerical Wave Tank to OWC Air Chamber for Wave Energy Conversion", 18th Int Offshore and Polar Eng Conf, 통권 : 1, pp.350~356 (2008), ISOPE
- Marjani, A, "Numerical Modelling in Wave Energy Conversion Systems", Energy, 33, pp.1246~1253 (2008)
- Setoguchi, T, "A Review of Impulse Turbines for Wave Energy Conversion", Renewable Energy, 23, pp.261~292 (2001)
- Takao, M, "Wells Turbine with End Plates for Wave Energy Conversion", Ocean Engineering, 34, pp.1790~1795 (2007)
- Thakker, A, "The Performance of Wells Turbine Under Bi-directional Airflow", Renewable Energy, 33, pp.2467~2474 (2008)
- Wang, D.J, "Analysis of Shoreline OWC Type Wave Energy Converters", Journal of Hydrodynamics, Ser. B, 1, pp.8~15 (2002)