TURBINE WITH RADIAL INLET AND OUTLET ROTOR FOR USE IN BIDIRECTIONAL FLOWS

摘要

The present invention describes a turbine for extracting energy from an alternating bidirectional flow, as is the case in ocean wave energy conversion systems. The turbine has a blade rotor with two peripheral openings through which fluid is alternatively admitted and discharged, as a radial centripetal flow when admitted and as a radial centrifugal flow when discharged. Two embodiments of the stator are possible, to promote the deflection of the flow as it nears the rotor, creating a circumferential speed component of flow oriented in the same direction as the normal direction of rotation of the rotor, with the aim in both cases of minimising discharge flow turbulences. In one embodiment, the guide blades are arranged near the rotor and move axially depending on the direction of flow so as to guide the inflow and not hinder the discharge flow. In another embodiment, the guide blades are axially fixed and arranged at a distance from the rotor in the radial direction.