... ABSTRACT. The present study deals with the design of the optimum impulse turbine for 30kW-class Oscillating Water Column (OWC) wave energy converter. The diameter of turbine was determined to be 0.8m through conceptual design process. For the basic design, the numerical analysis tool...

... Abstract Impulse turbine is widely used device as an energy converter in OWC type wave plant especially in Korea because of the wide operating range. Because the driven torque of blade is extracted form wave energy which is not an infinity force like fossil energy source, study on the unsteady...

... to the high concentration of energy. impulse turbine renewable energy conversion efficiency radial impulse turbine diameter owc wave power plant alternative methodology variation wave power plant maximum efficiency sustainability pressure coefficient pneumatic power ocean energy turbine...

... software is employed to predict both the free surface elevation inside the chamber installed with orifice device and the reciprocating air flows in the duct. Numerical simulation of impulse turbines employs the multiple reference frame method to simplify the rotation as the steady conditions...

... 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...

... Traditionally, Wells turbine has been widely used in OWC plants. However, an alternative has been studied during the last years, a selfrectifying turbine known as impulse turbine. We are interested in the radial version of the impulse turbine, which was initially proposed by M. McCormick...

... a bidirectional flow through a duct where a turbine is installed. setoguchi tip clearance ocean energy detachment guidance renewable energy vane takao impulse turbine rotor surface 1 flow pattern wave energy conversion tip flow geometry social responsibility sustainability radial impulse...

... for manufacturing an impulse turbine blade would be titanium alloy, with nickel alloy in second place. However cost and manufacturing practicalities need more detailed consideration before a final decision is made. INTRODUCTION The Oscillating Water Column (OWC) wave energy harnessing method is considered as one...

... ABSTRACT This paper deals with the design and aerodynamic analysis of a special-type impulse turbine having an end plate for wave energy conversion. Numerical analysis was performed using a CFD code, FLUENT. The main idea of the proposed end plate was to minimize the adverse effect of tip...

... ABSTRACT The objective of this study is to present the effect of tip clearance of impulse turbine with fixed guide vanes for wave energy conversion by experimental investigation and numerical simulation. The investigation has been performed by model testing for two hub-to-tip ratios of 0.6...

... a regulated voltage and frequency at the output, concerns the control of the plant itself. In this work, an impulse turbine is used to convert differential air pressure due to oscillating water column into mechanical shaft power. A permanent magnet based alternator driven by this turbine generates variable...

... ABSTRACT This paper deals with the performance analysis of impulse turbine for OWC type wave energy conversion device. Numerical analysis was performed using a commercially-available software. This parametric study includes the variation of the tip clearance and the setting angle of guide vane...

... brim brim height turbine conversion two-way diffuser body shape ocean energy bulge type turbine area diffuser center axis social responsibility sustainable development straight type separated flow region impulse turbine renewable energy base type max value 1 energy conversion system...

... ABSTRACT The objective of this paper is to present the performance comparison of the impulse turbines for different diameters. In the study, the investigation has been performed experimentally by model testing for some diameters, especially 0.3 m and 0.6 m. The experiment was performed...

... OWC designs to date have employed a fixed-pitch Wells turbine (eg. Raghunathan et al., 1995; Washio et al., 2000). Extensive research has also been conducted on self-rectifying impulse turbines (eg. Santhakumar et al., 1998; Setoguchi et al. 2001). One method of improving turbine performance...

... is ir-regular wave, average of 1/3 from highest wave is significant wave Hs, and wave has a characteristic of significant wave Hs, and wave length L has characteristic to keep ratio of wave height to wave length (Hs/L) in constant. valve system impulse turbine terminator backward bent duct...

... ABSTRACT This paper presents the work carried out to predict the behavior of a 0.6m Impulse turbine with fixed guide vanes with 0.6 hub to tip (H/T) ratio under real sea conditions. Water surface elevation verses time history based on Pierson Moskowitz Spectra was used as the input data...

... ABSTRACT This paper presents the account of an investigation of the effects of Reynolds number on the performance of 0.6m Impulse turbines with fixed guide vanes for different hub to tip ratios of 0.6 and 0.7. This work is part of the research to establish an optimum value of hub to tip ratio...

... different turbines are currently in use around the world for wave energy power generation, Wells Turbine, introduced by Dr. A. A. Wells in 1976 and Impulse Turbine with guide vanes by Kim et al. (1988). Both these turbines are currently in operation in different power plants in Europe and Asia...

...; Kaneko et al., 1986; Setoguchi et al., 1986); Wells turbine with guide vanes (Gato and Falcao, 1990; Inoue et al., 1985; Setoguchi et al., 1998); impulse turbine with self-pitch-controlled guide vanes (Setoguchi et al, 1996); impulse turbine with fixed guide vanes (Setoguchi et al., 2000...