... ABSTRACT In order to improve the performance of Darrieus turbine, the pitch angles of the blades are varied and tested in a low-speed wind tunnel. First, the pitch angles of the blades are varied with an interval of 15 degrees, to evaluate the possibility of the improvement. The tested tip...

... ABSTRACT Currently, the development of renewable energy has become a trend with the increasing demand for energy. Wind energy, as a renewable source of energy, is also getting more attention. Increasing effort is devoted to developing floating offshore wind turbines in deep water...

... Abstract The tripod foundation has been used as a popular support structure for offshore wind turbine (OWT). Typically, only deterministic computational model is considered by applying relevant standards and codes during the preliminary design of the foundations of OWT. However, uncertain...

... Abstract Marine current turbine (MCT) is crucial equipment in ocean energy exploration, whose hydrodynamic performance has a significant effect on efficiency of energy extraction. Due to the existence of friction of seabed, inflow velocity varies with vertical location. In this paper...

... Abstract With the development of the offshore wind turbine technology, the offshore wind turbine is going to deeper waters, and the scale of the offshore wind turbine is becoming larger, in which case the numerical computation of aerodynamic performances of large-scale floating offshore wind...

... Abstract In this paper, three typical floating offshore wind turbines (FOWTs) were studied, with the generic 5MW wind turbine. The dynamic responses of three FOWTs are calculated in both frequency and time domain in operational and survival case under the same environmental conditions. During...

... Abstract Floating wind turbines are subjected to combined aerodynamic and hydrodynamic loads varying both in time and in amplitude. In this study a multi-column tension-leg-type floating wind turbine (WindStar TLP system) is investigated for its global performance under normal operating...

... Static and Dynamic Analysis Modeling for offshore Wind Turbine Foundation Structures Hongwang Ma and Longzhu Chen School of Naval Architecture, Ocean and Civil Engineering Shanghai JiaoTong University, Shanghai, China ABSTRACT In recent years, offshore wind farm in the world has been rapid...

... ABSTRACT: A straight-bladed vertical axis wind turbine with a directed guide vane row has been proposed and tested by the authors, in order to overcome the disadvantages of vertical axis wind turbine. However, field test of the proposed wind turbine has not been carried out so far...

... ABSTRACT: New results of numerical hydrodynamic analysis of the novel offshore cross-flow vertical axis wind turbine with large floating rotor (WEMU design) are presented. The research goals are to investigate a spatial movement of rotary pontoon in incoming regular and irregular waves as well...

... ABSTRACT: A fully coupled aero-elastic simulation technology is developed with enough sophistication to have the features required to perform loads analyses for a variety of wind turbine configurations. Blade and tower are modeled multiple rigid bodies which are connected beam elements...

... ABSTRACT: Considering the tidal-current power generation in a narrow strait, a water turbine of vertical axis is preferred, since the multiple-stage system is applicable in the depth direction. The straight bladed vertical axis water turbine (S-VAWT) is appropriate in such system because...

... Cheboxarov Department of Mechanical Engineering, Far Eastern State Technical University Vladivostok, Russia ABSTRACT Paper describes CFD calculations of water flow about floating rotor for new large-scale vertical axis wind turbine supported by pontoon with columns (WEMU type). The research goals...

...On the Performance Prediction of Impulse Turbine System in Various Operating Conditions B.-S. Hyun Division of Ocean Systems Engineering, Korea Maritime University Busan, Korea J.-S. Moon, K. Hong and S.W. Hong Maritime and Ocean Engineering Research Institute, KORDI Daejeon, Korea ABSTRACT...

...Calculation of Wind Loading on Large-Scale Floating Wind Turbine Victor V. Cheboxarov, Valery V. Cheboxarov Department of Industrial Automation, Far Eastern State Technical University Vladivostok, Russia ABSTRACT Wind loading on large-scale floating rotor of recently suggested Wind Energy Marine...

...Proceedmgs of the First PaclftC/Asla OffshOle Mechamcs SymposIum Seoul, Korea, 24·28 June, 1990 COPYright @1990byThelnternallOnalSocletyofOffshoreandPolarEngmeels ~r a.. 4111._ .. Q - .. 4I1'1jijblJl BIPLANE AXIAL TURBINE FOR WAVE POWER GENERATOR K Kaneko and T Setoguchl Saga [fIlIl'el'l(v Saga...

...Proceedmgs of the FlIst PauftclAsta Offshore Mechamcs SymposIUm Seoul. KO/ea. 24-28 June. 1990 COPYright © 1990 by The 1ntet natIOnal SocIety of Offshore and Polar Engineers SOME TECHNIQUES TO IMPROVE THE PERFORMANCE OF BIPLANE WELLS TURBINE FOR WAVE POWER GENERATOR T Setoguchl, K Kaneko, and E...

... was desired. 179 Ryokuseisha Corporation conducted iaproveaent works for (13), and could get a fine future view as shown in this report. PRESENT WAVE POVER BUOY OImenSlons(m) Fig. 1: One example of center pipe wave po~er ~uoy. Wave power buoy consists of buoy,air turbine, electric generator,control unit...

... of conversion effiiency. double rotor Yells turbine. eletric generator. Power cost by new wave power device is calculated. it is estiaated 5.6 cent/lwh in Hawaiian sea. INTRODUCTION Wave is one kind of natural energy. it is produced by wind blowing on sea, and it is destributed on allover the sea surface which...

... vortex turbine asymmetric flow rpm valve 2 guidevane ocean energy unit rotational speed wave form cross-flow turbine flow condition output power efficiency torque detector available head renewable energy mean efficiency relation torque measurement rotational speed...