An apparatus for generating electricity from water flow

Abstract

An apparatus for generating electricity from water flow comprising: a convergent section connected at a downstream end thereof to an upstream end of a mixing chamber such that a venturi is formed; a diffuser section connected to a downstream end of the mixing chamber, the diffuser configured such that in use the static pressure at the exit of the diffuser is greater than the static pressure at the venturi; at least part of a tube located in the convergent section, such that an annulus is defined between the tube and the convergent section, to form a first flow passage, and the tube defining a second flow passage within the tube; and a turbine, which is connected with the tube and connectable to a generator, wherein the turbine is located within a turbine chamber that is connected at a downstream end thereof to an upstream end of the convergent section.

Dependencies are inferred from the claim text.