Senj wind power plant

Abstract

In order to meet the growing energy demand, natural energy sources like water, sun and wind should be used as much as possible because of their advantages of being clean, inexpensive and renewable. This paper presents an entirely new system of wind turbine, which allows a radical increase of wind potential in the north-eastern wind called the “bora”. The “bora” occurs in Senj for 4.117 hours annually at an average speed of 8.35 m/s. It always comes from the ENE quadrant, which is essential for this system. If electric power is to be generated on a large scale the free air stream in which conventional wind turbines operate should be replaced by a programmed, concentrated stream in nozzle, similarly to what has already been done with hydropower by means of dams. As to the wind power plant Senj, nozzles would be erected in a semiconductive dam to direct the accelerated air mass to the turbine rotor and then by means of a deflector behind the rotor to ensure a reduction in velocity in order to obtain the maximum performance. A greater number of wind turbines in the nozzle, arranged as sections one next to the other, form an array (row) or a wind dam. If several arrays are then placed one after another it is possible to obtain a large wind power plant. Because of the variations in the behaviour of the “bora” and its multiplication in the nozzle, it is necessary to provide double control, both on the stator and the rotor, so as to ensure favourable operating characteristics.