Search Results - subject:"Cross-flow turbine"

Banki-Michell Optimal Design by Computational Fluid Dynamics Testing and Hydrodynamic Analysis

Sammartano, Vincenzo; Aricò, Costanza; Carravetta, Armando - In: Energies 6 (2013) 5, pp. 2362-2385

In hydropower, the exploitation of small power sources requires the use of small turbines that combine efficiency and economy. Banki-Michell turbines represent a possible choice for their simplicity and for their good efficiency under variable load conditions. Several experimental and numerical...

Persistent link: https://www.econbiz.de/10011031203

Numerical analysis and performance enhancement of a cross-flow hydro turbine

Acharya, Nirmal; Kim, Chang-Gu; Thapa, Bhola; Lee, Young-Ho - In: Renewable Energy 80 (2015) C, pp. 819-826

Exploitation of small hydropower sources requires the use of small turbines that combine efficiency and economy which can conveniently cater the power needs of rural and small communities. Cross-flow turbines are used widely in such micro hydropower plants due to their simple design, easier...

Persistent link: https://www.econbiz.de/10011263799

Drag-type cross-flow water turbine for capturing energy from the orbital fluid motion in ocean wave

Akimoto, Hiromichi; Tanaka, Kenji; Kim, Yong Yook - In: Renewable Energy 76 (2015) C, pp. 196-203

Since the energy of ocean wave exists mostly near the water surface and decreases exponentially with depth, the resource of wave energy is measured in the line density unit (kW/m). Therefore, in the scaling up of a wave energy converter, the captured wave energy increases slowly in proportion to...

Persistent link: https://www.econbiz.de/10011189970

Experimental measurements of the hydrodynamic performance and structural loading of the Transverse Horizontal Axis Water Turbine: Part 1

McAdam, R.A.; Houlsby, G.T.; Oldfield, M.L.G. - In: Renewable Energy 59 (2013) C, pp. 105-114

the Darrieus cross-flow turbine. Tests were conducted in the combined wind, wave and current tank at Newcastle University …

Persistent link: https://www.econbiz.de/10011043851

Experimental measurements of the hydrodynamic performance and structural loading of the transverse horizontal axis water turbine: Part 2

McAdam, R.A.; Houlsby, G.T.; Oldfield, M.L.G. - In: Renewable Energy 59 (2013) C, pp. 141-149

cross-flow turbine. Tests were conducted in the combined wind, wave and current tank at Newcastle University on a 0.5 m …

Persistent link: https://www.econbiz.de/10011044038

Experimental measurements of the hydrodynamic performance and structural loading of the Transverse Horizontal Axis Water Turbine: Part 3

McAdam, R.A.; Houlsby, G.T.; Oldfield, M.L.G. - In: Renewable Energy 59 (2013) C, pp. 82-91

cross-flow turbine. Tests were conducted in the combined wind, wave and current tank at Newcastle University on a 0.5 m …

Persistent link: https://www.econbiz.de/10011045414

Efficiency improvement of a tidal current turbine utilizing a larger area of channel

Kim, Ki-Pyoung; Ahmed, M. Rafiuddin; Lee, Young-Ho - In: Renewable Energy 48 (2012) C, pp. 557-564

-directional cross-flow turbine by simulating two cases of i) a single turbine and ii) a number of equally spaced turbines. It was found …

Persistent link: https://www.econbiz.de/10010806641

Influence of air supply on the performance and internal flow characteristics of a cross flow turbine

Chen, Zhenmu; Choi, Young-Do - In: Renewable Energy 79 (2015) C, pp. 103-110

This study attempts to improve the efficiency of a given type of cross flow turbine by supplying air from air suction … holes. A newly developed air supply method is adopted. CFD analysis of the cross flow turbine is carried out to investigate … air layer in the runner passage and examine its effect on the performance of the cross flow turbine. The result shows that …

Persistent link: https://www.econbiz.de/10011208681

Modeling and validation of a cross flow turbine using free vortex model and a modified dynamic stall model

Urbina, Raul; Peterson, Michael L.; Kimball, Richard W.; … - In: Renewable Energy 50 (2013) C, pp. 662-669

This work details the implementation of a modified Beddoes Leishman model into a Free Vortex Method (FVM) to predict the performance of Darrieus turbines. The model uses Sheng's consideration of the reduced pitch rate influence on the dynamic loads over the foil and revised Kirchhoff flow...

Persistent link: https://www.econbiz.de/10010805652