Darrieus-Type Turbines: Pioneering Efficiency Freen’s innovative designs are based on the Darrieus-type turbine, a model first patented in 1931.

The Darrieus uses arched narrow blades anchored at both ends of a shaft, like an eggbeater. Savonius turbines utilizes air scoops mounted on the generator shaft like an ice cream scooper.

By considering these adequate parameters, experimental and computational simulations of spiral Darrieus turbine were performed. At first, we have presented the experimental procedure carried out ...