| 摘要 |
An electrical energy generating system is mounted on a structure and includes a ducted shroud facing the wind and concentrating its flow through Coanda effect to inlet mouths each directed to a respective one of a plurality of small centrifugal or axial turbines connected to brushless DC generators. The air exits each turbine axially and is directed to flow along the wall, merging with the natural vertical airflow and is discarded at the top of the structure where another deflector creates a negative pressure helping the residual airflow to merge with wind blowing over the top. The efficiency of generation is proportional to the difference between the front wind pressure and the back air pressure. While each wind cell generates only a few tens of watts, the array can generate a large amount of electricity to be used for the structure and/or to be made available to a grid. |
