摘要:
A shrouded fluid turbine comprises an impeller and a turbine shroud surrounding the impeller. The inlet of the turbine shroud is flared. The shroud includes alternating inward and outward curving lobe segments along a trailing edge of the turbine shroud. The inward and outward curving lobe segments have exposed lateral surfaces, or in other words do not have sidewalls joining the inward and outward curving lobe segments. This allows for both transverse mixing and radial mixing of air flow through the turbine shroud with air flow passing along the exterior of the turbine shroud.
摘要:
A wind turbine produces a unique pressure profile downstream of the wind turbine. This pressure profile reflects the structure of the wind turbine, which includes a shroud that has mixing lobes on a trailing edge thereof. The pressure profile includes high pressure and low pressure regions corresponding to the number and location of the mixing lobes on the shroud.
摘要:
A horizontal axis wind turbine blade comprises a leading edge surface, a trailing edge surface, an upper camber surface extending between the leading edge surface and the trailing edge surface, and a lower camber surface extending between the leading edge surface and the trailing edge surface. Notably, the trailing edge surface includes a plurality of air flow mixing lobes. An ejector blade may be located above the upper camber surface and behind the trailing edge surface. The ejector blade may include an ejector blade trailing edge surface that includes a plurality of ejector blade mixing lobes. The ejector blade mixing lobes may include a plurality of ejector blade high energy mixing lobes and ejector blade low energy mixing lobes. Advantageously, the mixing lobes allow for a reduced wakes behind the HAWT and thus decrease the requisite separation distance between HAWTs in a wind farm.
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.
摘要:
Systems for protecting a wind turbine in high wind conditions are disclosed. A shrouded turbine may have an ejector shroud disposed adjacent and downstream of a turbine shroud. In one version, the ejector shroud can move to surround the turbine shroud. In another version, the turbine can be pivoted on a support tower to cover the intake end of the turbine and rotate the turbine about an axis at a right angle to the tower axis. In another version, the turbine is supported by a telescoping tower which may be retracted to lower the turbine in high winds. In another version, the tower sections may be connected by a pivotable connection and supported by guy wire(s) which may be lengthened to lower the upper tower section pivotally.
摘要:
Various components of a shrouded wind turbine are coated with carbonyl iron powder. The resulting wind turbine has a reduced radar signature compared to conventional wind turbines.
摘要:
Various components of a shrouded wind turbine are coated with a radar absorbent material. The resulting wind turbine has a reduced radar signature compared to conventional wind turbines.
摘要:
A wind turbine has an impeller surrounded by a turbine shroud and/or an ejector shroud, wherein the turbine shroud and/or the ejector shroud include inflatable portions and/or flexible inflatable portions. In some embodiments, the turbine shroud and/or the ejector shroud include internal rib members whose shape or length can be changed to alter the characteristics of the wind turbine.
摘要:
A golf ball includes a lattice reinforced layer, which is a layer made of at least two materials with different properties. The materials are interlocked with each other, where one material forms a grid with pores while the other material protrudes through the pores. In some embodiments, the lattice reinforced layer is manufactured using a shutoff molding technique so that the entire lattice reinforced layer is molded in the same mold. The lattice layer is provided to alter the properties of a layer, such as increasing the durability, toughness, or strength of the layer.
摘要:
A golf ball includes a core made from a highly neutralized polymer that has been mixed with a hardness modifier. The modifier may be a process oil or a plasticizer. In particular, the modifier may be a naphthenic process oil, a paraffinic process oil, a phthalate plasticizer, a trimellitate plasticizer, an adipate plasticizer, a sebacate-based plasticizer, a maleate-based plasticizer, and blends thereof. Also disclosed is a method for manufacturing a golf ball that includes changing the hardness of a highly neutralized polymer core.