VAWT with controlled blades : influence of wake of one turbine on power coefficient on the next turbine
Communication avec acte
Power production from wind turbines is affected by several conditions like wind speed, turbine speed, turbine design, turbulence, changes of wind direct ion, wake of previous turbines. These conditions are not always optimal and have negative effects on most turbines. The present wind turbine is a small one which allows to be used on roofs or in gardens to light small areas like publicity boards, parkings, roads or for water pumping, heating... This turbine is less affected by these conditions because the blades combine a rotating movement around each own axis and around the main turbine’ s one. Due to this combination of movements, flow around this turbine is more optimized than classical Darrieus turbines. It has been shown in previous studies that the best configuration was obtained with straight blades, a blade stager angle comprised between 0 and 8 degrees and a range of non-dimensional velocity from 0.4 to 0.6 for a very good power coefficient of about 0.4 in case of one VAWT. The present study points up the influence of the position of each VAWT in a group of three turbines and of the distances between turbines. It deals on global and local performances of these turbines.
Files in this item
Showing items related by title, author, creator and subject.
Two-phase numerical study of the flow field formed in water pump sump: influence of air entrainment Article dans une revue avec comité de lectureBAYEUL-LAINE, Annie-Claude; SIMONET, Sophie; BOIS, Gérard; ISSA, Abir (IOP - Institute of Physics, 2012)In a pump sump it is imperative that the amount of non-homogenous flow and entrained air be kept to a minimum. Free air-core vortex occurring at a water-intake pipe is an important problem encountered in hydraulic engineering. ...
Communication avec acteBAYEUL-LAINE, Annie-Claude; SIMONET, Sophie; ISSA, Abir; BOIS, Gérard (2013)Numerous different experimental and numerical methods have been developed and are already improved in order to get rather good flow descriptions inside pump components. These calculations are generally realized assuming ...
Communication avec acteBAYEUL-LAINE, Annie-Claude; SIMONET, Sophie; BOIS, Gérard (2010)Bien que les éoliennes soient une forme très ancienne d’exploitation du vent, ces dernières quarante dernières années ont vu leur évolution et un développement important de leur conception dans le cadre du développement ...
Communication sans acteBAYEUL-LAINE, Annie-Claude; SIMONET, Sophie; BOIS, Gérard (6 th International Conference of Pumps and Fans with compressors and wind turbines, 2013)The present wind turbine is a small one which can be used on roofs or in gardens. This turbine has a vertical axis. Each turbine blade combines a rotating movement around its own axis and around the main rotor axis. Due ...
Communication avec acteBAYEUL-LAINE, Annie-Claude; SIMONET, Sophie; DOCKTER, Aurore; BOIS, Gérard (2011)Today, wind energy is mainly used to generate electricity and more and more with a renewable energy source character. Power production from wind turbines is affected by several conditions like wind speed, turbine speed, ...