Impacts of solidity and hybrid system in small wind turbines performance

摘要: Wind energy represents a very important source of for many countries nowadays. provides an efficient and effective solution to reduce fusel fuel consumption as well pollutant emissions. VAWTs (vertical axis wind turbines) were originally considered promising, before being subrogated by the present, horizontal turbines. There is now resurgence interests VAWTs, in particular Darrieus like turbine appear be particularly promising conditions low speed, but suffer from efficiency compared Additionally, are not always self-starting, which major drawback. The present paper introduces main problem self-stating capability investigates some techniques improve this effect solidity usage hybrid system between drag lift types have been investigated numerically using CFD (Computational Fluid Dynamics) technique experimentally. A considerable improvement H-rotor self-starting can obtained these techniques.