Storage of compressed air in wind turbine support structure
    1.
    发明授权
    Storage of compressed air in wind turbine support structure 有权
    压缩空气在风力涡轮机支架结构中的储存

    公开(公告)号:US09581140B2

    公开(公告)日:2017-02-28

    申请号:US14645298

    申请日:2015-03-11

    IPC分类号: F03D9/00 F03D9/02 F04B17/02

    摘要: An energy storage and recovery system employs air compressed utilizing power from an operating wind turbine. This compressed air is stored within one or more chambers of a structure supporting the wind turbine above the ground. By functioning as both a physical support and as a vessel for storing compressed air, the relative contribution of the support structure to the overall cost of the energy storage and recovery system may be reduced, thereby improving economic realization for the combined turbine/support apparatus. In certain embodiments, expansion forces of the compressed air stored within the chamber, may be relied upon to augment the physical stability of a support structure, further reducing material costs of the support structure.

    摘要翻译: 能量储存和回收系统采用来自操作风力涡轮机的利用空气压缩的电力。 该压缩空气储存在支撑风力涡轮机上方地面的结构的一个或多个室中。 通过充当物理支撑物和用于储存压缩空气的容器,可以减少支撑结构对能量储存和回收系统的总体成本的相对贡献,从而提高组合的涡轮/支撑装置的经济实现。 在某些实施例中,存储在腔室内的压缩空气的膨胀力可以依赖于增加支撑结构的物理稳定性,进一步降低了支撑结构的材料成本。

    Energy recovery from compressed gas
    3.
    发明授权
    Energy recovery from compressed gas 有权
    从压缩气体回收能量

    公开(公告)号:US08851043B1

    公开(公告)日:2014-10-07

    申请号:US13836790

    申请日:2013-03-15

    摘要: An expansion system utilizes external combustion of its residual warm exhaust air, in order to heat incoming compressed air. The heat of this external combustion is communicated to the incoming compressed air through a heat exchanger. The expansion system may be incorporated into an energy storage device also featuring a compressed air storage unit supplied by a compressor. Where the stored supply of compressed air is depleted, the energy storage device may continue to supply electricity on demand through operation as a heat engine, with the compressor being driven directly (e.g. on a same rotating shaft) or indirectly (via generated electrical power) by the expansion system. Multiple expanders of the same or different types (e.g. rotating, reciprocating), may be utilized in parallel and/or in series (e.g. multiple stages) depending upon the particular application. Multi-stage embodiments featuring internal combustion in low pressure stages, may be particularly suited for placement in vehicles.

    摘要翻译: 膨胀系统利用其残余的热排气的外部燃烧,以便加热进入的压缩空气。 该外部燃烧的热量通过热交换器传送到输入的压缩空气。 膨胀系统可以结合在还具有由压缩机供应的压缩空气存储单元的能量存储装置中。 在存储的压缩空气供应被耗尽的地方,能量存储装置可以通过作为热机的运行来继续供应电力,其中压缩机被直接驱动(例如在相同的旋转轴上)或间接地(通过产生的电力) 由扩展系统。 相同或不同类型(例如,旋转,往复运动)的多个膨胀器可以根据具体应用并联和/或串联(例如多级)来使用。 在低压阶段具有内燃特性的多级实施例可能特别适合于放置在车辆中。

    Valve
    7.
    发明授权
    Valve 有权

    公开(公告)号:US09500140B2

    公开(公告)日:2016-11-22

    申请号:US14070363

    申请日:2013-11-01

    摘要: Embodiments relate to valves comprising a member such as a plate or poppet, that is moveable relative to a stationary seat. The state of the member may be maintained against opposing forces with relatively little expenditure of energy. According to one embodiment, a poppet displaced from seating in the valve seat, may be held in position against opposing forces tending to close the valve, until a desired flow of gas through the valve has taken place. The poppet may then be released as desired, such that those opposing forces serve to passively close the valve. The valve may be secured in position utilizing mechanical, magnetic, electromagnetic, pneumatic, electrostatic, or hydraulic approaches. Valve embodiments may be particularly suited to controlling gas flows for compression and/or expansion in an energy storage system.