Pipe device for use in open water flow for recuperating kinetic energy from sea current, has pipe whose axisymetric wall defines fluid passage channel, where wall of pipe defines divergent shape along longitudinal direction

摘要

The device (10) has a pipe (11) whose axisymetric wall (12) defines a fluid passage channel (15). A capturing unit i.e. rotor, captures the part of kinetic energy from fluid i.e. water, traversing the channel. The wall has a leading edge (18) defining a fluid inlet opening (16), and a trailing edge (19) that defines a fluid outlet opening (17). The inlet opening has a section that is smaller than that of the outlet opening. The wall of the pipe defines a divergent shape along a longitudinal direction (X). Independent claims are also included for the following: (1) a kinetic energy capturing system comprising a pipe device (2) a method for locally increasing speed of a fluid flow in an open medium for recuperating the energy.