摘要:
This invention relates to an arrangement for controlling water flow at an edge of a reciprocating panel element of a wave energy recovery unit equipped with at least a control system, in which arrangement the panel element is hinged onto the base at the bottom of the sea with the help of support structures and support shafts. The arrangement comprises adjustable water flow adjustment means at least at one edge of the panel element.
摘要:
An energy generating system for transforming energy of fluid flow into electric energy, the system, at least in operation, comprising: a flow-changing member having a peripheral rim and mounted in a fluid path having a path surface, so as to be at least partially surrounded by said path surface, said flow-changing member being displaceable between a first position, in which at least a portion of the rim is spaced from a corresponding portion of the path surface to a first extent and a second position, in which said portion of the rim is spaced from said portion of the fluid path surface to a second extent greater than said first extent, so that increase of total volumetric flow rate of said fluid above a predetermined threshold to an increased volumetric flow rate is configured to induce displacement of said flow-changing member from said first position toward said second position, thereby causing the volumetric flow rate of said fluid at said spacing to be above said increased volumetric flow rate; and a turbine mounted in fluid communication with said fluid path at a location other than said spacing, whereby said displacement causes the volumetric flow rate of said fluid at said turbine to be below said increased volumetric flow rate.
摘要:
Invention refers to vertical electrical energy generators. Vertical wind turbine system contains one or two vertical turbines 1, paired aside each other, and frontal fluid flow diverter 5 for diverting of the running fluid flow, as well as cover 6 , which covers the upper part of turbine(-s) 1 . The indicated system is characterized by additional rear fluid flow diverter 10 , which is installed behind one or both turbines 1 and is configured so as to divert fluid flow X" running above cover 6 to the rear part of turbine(-s) 1 , creating secondary fluid flow Y in the blades 4 of turbine(-s) 1 .
摘要:
Disclosed herein are linear hydraulic turbines in which the linear machine converts the majority of available energy in the flowing water into useful torque directly in the runner, leaving the outflow with very little velocity.
摘要:
The application relates to unidirectional hydrokinetic turbines having an improved flow acceleration system that uses asymmetrical hydrofoil shapes on some or all of the key components of the turbine. These components that may be hydrofoil shaped include, e.g., the rotor blades (34), the center hub (36), the rotor blade shroud (38), the accelerator shroud (20), annular diffuser(s) (40), the wildlife and debris excluder (10, 18) and the tail rudder (60). The fabrication method designs various components to cooperate in optimizing the extraction of energy, while other components reduce or eliminate turbulence that could negatively affect other component(s).
摘要:
The present invention provides a pressure controlled wind turbine enhancement system which includes a two part conical shroud to be located directly upwind of a turbine in order to augment the natural flow of air past blades of the turbine in a manner which produces increased power output from the turbine.
摘要:
Disclosed are wind turbines comprising a turbine shroud and optionally an ejector shroud. The shrouds are segmented, or in other words have longitudinal spaces between segments. Such wind turbines have reduced drag load, particularly those loads due to off-axis wind forces.