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A novel radial self-rectifying air turbine for use in wave energy converters

Falcão, A.F.O.; Gato, L.M.C.; Nunes, E.P.A.S. - In: Renewable Energy 50 (2013) C, pp. 289-298

preliminary design tool for the turbine geometry. More detailed numerical results are then obtained with the aid of a commercial …

Persistent link: https://www.econbiz.de/10010806136

A twin unidirectional impulse turbine topology for OWC based wave energy plants

Jayashankar, V.; Anand, S.; Geetha, T.; Santhakumar, S.; … - In: Renewable Energy 34 (2009) 3, pp. 692-698

Experimental results from near shore bottom standing OWC based wave energy plants in Japan and India have now been available for about a decade. Historically the weakest link in the conversion efficiency of OWC based wave energy plants built so far has been the bidirectional turbine. This is...

Persistent link: https://www.econbiz.de/10010807027

Computational fluid dynamics analysis of a 0.6m, 0.6 hub-to-tip ratio impulse turbine with fixed guide vanes

Thakker, Ajit; Hourigan, Fergal - In: Renewable Energy 30 (2005) 9, pp. 1387-1399

into the design process. …

Persistent link: https://www.econbiz.de/10010807084

Effects of turbine damping on performance of an impulse turbine for wave energy conversion under different sea conditions using numerical simulation techniques

Thakker, Ajit; Usmani, Zia; Dhanasekaran, T.S - In: Renewable Energy 29 (2004) 14, pp. 2133-2151

This paper presents the work carried out to predict the behavior of a 0.6 m impulse turbine with fixed guide vanes with 0.6 hub to tip (H/T) ratio under real sea conditions.This enhances the earlier work done by authors on the subject by including the effects of damping applied by the turbine....

Persistent link: https://www.econbiz.de/10010804413

Computed effects of tip clearance on performance of impulse turbine for wave energy conversion

Thakker, A.; Dhanasekaran, T.S. - In: Renewable Energy 29 (2004) 4, pp. 529-547

This paper depicts numerical analysis on Impulse turbine with fixed guide vanes for wave energy conversion. From the previous investigations, it is found that one of the reasons for the mismatch between computed and experimental data is due to neglecting tip clearance ef fect. Hence, a 3-D model...

Persistent link: https://www.econbiz.de/10010804546

Design charts for impulse turbine wave energy extraction using experimental data

Thakker, A.; Jarvis, J.; Sahed, A. - In: Renewable Energy 34 (2009) 10, pp. 2264-2270

This study presents newly developed charts to aid in early design of impulse turbine for wave energy extraction. These …. The novel approach is applied in a case study that considers the optimum diameter design selection of next …-generation impulse turbine power take-off. This allowed the selection of the correct impulse turbine sizing for a required rated power …

Persistent link: https://www.econbiz.de/10011045916

Multiple surrogate based optimization of a bidirectional impulse turbine for wave energy conversion

Badhurshah, Rameez; Samad, Abdus - In: Renewable Energy 74 (2015) C, pp. 749-760

approximation, radial basis function, Kriging and weighted average surrogates were incorporated in this problem. Same design points …. Numbers of guide vanes and rotor blades were chosen as the design variables, and the objective was to maximize the blade …

Persistent link: https://www.econbiz.de/10011076854

A dimensional analysis for determining optimal discharge and penstock diameter in impulse and reaction water turbines

Leon, A.S.; Zhu, L. - In: Renewable Energy 71 (2014) C, pp. 609-615

This paper presents a dimensional analysis for determining optimal flow discharge and optimal penstock diameter when designing impulse and reaction turbines for hydropower systems. The aim of this analysis is to provide general insights for minimizing water consumption when producing hydropower....

Persistent link: https://www.econbiz.de/10010906504

A review of impulse turbines for wave energy conversion

Setoguchi, T; Santhakumar, S; Maeda, H; Takao, M; Kaneko, K - In: Renewable Energy 23 (2001) 2, pp. 261-292

Oscillating Water Column based wave energy plants convert wave energy into low pressure pnuematic power in the form of bi-directional air flows. Air turbines which are capable of rotating uni-directionally in bi-directional air flow, otherwise also known as self-rectifying turbines, are used to...

Persistent link: https://www.econbiz.de/10010806378

Performance of nano-hydraulic turbine utilizing waterfalls

Ikeda, Toshihiko; Iio, Shouichiro; Tatsuno, Kenji - In: Renewable Energy 35 (2010) 1, pp. 293-300

The aim of this investigation was to develop an environmentally friendly nano-hydraulic turbine utilizing waterfalls. A model of an impulse type hydraulic turbine constructed and tested with an indoor type waterfall to arrive at an optimum installation condition. Effects of an installation...

Persistent link: https://www.econbiz.de/10010804498

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