摘要:
A universal spherical reaction turbine for any flowing fluid at any depths or elevation that is capable of unidirectional rotation under reversible flow conditions. The turbine includes a rotatable shaft that is adapted to rotate about an axis of rotation; turbine blade support members that are fixedly attached to the rotatable shaft and a plurality of meridian turbine blades. The meridian turbine blades are fixedly attached to diametrically-opposite points that define a geometrical north-south meridian axis that is oriented at a skew angle to the axis of rotation of the rotatable shaft. The skew angle is greater than zero and less than 180 degrees, and, more preferably, between 25 and 35 degrees. The skewing ensures that those turbine blades that are attached to the diametrically-opposite points move on a helical trajectory with respect to the axis of rotation.
摘要:
The invention relates to a method of aligning a wind turbine component with a wind turbine rotor hub, comprising providing the component with a support comprising at least one adjustable element and adjusting said at least one element to align the wind turbine component. The invention further relates to a system for aligning a wind turbine component with a wind turbine rotor hub comprising a support with at least one adjustable element supporting said wind turbine component, such that said wind turbine component can be aligned by adjusting said at least one element.
摘要:
A system and method provide a proactive mechanism to control pitching of the blades of a wind turbine to compensate for rotor imbalance during normal operation by pitching the blades individually or asymmetrically, based on turbulent wind gust measurements in front of the rotor, determined before it reaches the rotor blades.
摘要:
A tandem axial turbine that comprises a front confusor, a funnel-shaped runner having inner blades and capable of accelerating and directing an oncoming flow toward a co-axial rear runner which rotates in an opposite direction. A tangential turbine has a hub, blades capable of rotating in relation to the hub between positions across and along the flow, and propulsion springs for controlling the movement of the blades in relation to the hub and the transfer of the energy. A second tangential turbine comprises a runner having a hub and blades and a shroud capturing the runner from above and around and permitting the blades to dip into water flowing immediately below the hub and an opening of the shroud. A surface vessel comprises a stabilized frame rotatably affixed on a vessel hull about a center of wave induced rocking motions of the vessel and therefore isolated from a rocking motion of the vessel.
摘要:
A system for providing low cost fluid pressurization without consumption of limited natural resources, pollution, or greenhouse gas emission, and is independent of wind conditions. Additionally, the system of the present invention includes a venturi-like collar positioned at the top of one or more stacks increasing air flow.
摘要:
An airfoil shaped tower the size of a skyscraper for the production of electrical power using turbines. The turbines are located at the base of the tower and are fed by ambient air. Power to turn the turbines comes from the pressure drop generated by the wind moving over a changing surface of the airfoil. (Bernoulli's Equation). The areas of negative pressure on the exterior surface are covered by a plurality of bleeder vents that conduct air from the high-pressure (ambient air) interior to the low-pressure exterior. The invention is further improved by the construction of several towers in close proximity. Adjacent towers augment the air velocity thus increasing the pressure differential. The power of the turbines is greatly increased because power is proportional to the effective wind velocity cubed.
摘要:
A blade for a rotor of a wind energy turbine includes opposite upper and lower faces, opposite leading and trailing edges connecting the upper and lower and at least one air outlet opening arranged on at least one of the upper face, the lower face and the trailing edge for discharging pressurized air into the air around at least one of the upper and lower faces and the leading and trailing edges.
摘要:
A blade for a rotor of a wind energy turbine includes opposite upper and lower faces, opposite leading and trailing edges connecting the upper and lower faces, means for generating pressurized air, and at least one air outlet opening in fluid communication with the pressurized air generation means and arranged on at least one of the upper face, the lower face and the trailing edge for discharging the pressurized air into the air around at least one of the upper and lower faces and the leading and trailing edges.
摘要:
The invention concerns a wind power installation, whether an offshore or an onshore wind power installation. An offshore wind power installation comprising an underwater construction which is externally provided with a structure which promotes a growth with marine fauna and flora for later harvest.
摘要:
A method for deicing a rotor blade having a blade root, a blade tip, and a leading edge in which the rotor blade is operably coupled to a hub of a turbine includes circulating heated air through an outflow channel from the blade root towards the blade tip, recirculating the heated air via a return channel from the blade tip to the blade root, whereupon the recirculated heated air becomes returned air, and reheating the returned air for further circulation.