Heat shields for alkali metal thermal to electric conversion (AMTEC)
cells
    1.
    发明授权
    Heat shields for alkali metal thermal to electric conversion (AMTEC) cells 失效
    用于碱金属热电转换(AMTEC)电池的隔热罩

    公开(公告)号:US5929371A

    公开(公告)日:1999-07-27

    申请号:US901554

    申请日:1997-07-28

    IPC分类号: H01G9/21 H01J45/00 H01L35/28

    摘要: The present invention provides an alkali metal thermal to electric conversion (AMTEC) cell of the type employing an alkali metal flowing between a high-pressure zone and low-pressure zone in the cell through a solid electrolyte structure. The cell preferably includes a condenser communicating with the low-pressure zone for condensing alkali metal vapor migrating through the low-pressure zone from the solid electrolyte structure. An artery is coupled to the condenser for directing condensed alkali metal from the condenser toward a hot end of the cell. An evaporator for evaporating the condensed alkali metal is coupled to the artery and communicates with the high-pressure zone. A heat shield is disposed in the low pressure zone of the cell for reducing the radiative heat transfer between the hot end of the cell and the cold end of the cell. The heat shield preferably includes a first end having a known area transitioning to a second end encompassing a smaller area than the first end.

    摘要翻译: 本发明提供了通过固体电解质结构在电池中在高压区和低压区之间流动的碱金属的碱金属热电转换(AMTEC)电池。 电池优选包括与低压区连通的冷凝器,用于冷凝通过低压区从固体电解质结构迁移的碱金属蒸气。 动脉联接到冷凝器,用于将冷凝的碱金属从冷凝器引导到细胞的热端。 用于蒸发冷凝的碱金属的蒸发器联接到动脉并与高压区连通。 隔热板设置在电池的低压区中,以减少电池的热端和电池的冷端之间的辐射热传递。 隔热罩优选地包括具有过渡到包围比第一端小的区域的第二端的已知区域的第一端。

    Means for controlling thermal properties of AMTEC cells
    2.
    发明授权
    Means for controlling thermal properties of AMTEC cells 失效
    用于控制AMTEC细胞热性质的方法

    公开(公告)号:US5928436A

    公开(公告)日:1999-07-27

    申请号:US806606

    申请日:1997-02-26

    CPC分类号: H01G9/21 H02N3/00

    摘要: The present invention provides an AMTEC cell having a more robust power conductance path (conduction, radiation, convection, and latent heat transfer) from the heat input surface of the cell to the working fluid, evaporation surface, and SES. More particularly, one embodiment of the present invention includes collars, post and/or bridges extending between the SES support plate and the heat input surface. In another embodiment, a plurality of channels or conduits extend between the heat input surface and SES support plate. These embodiments simultaneously increase the thermal conductance path between the heat input surface of the cell and the evaporation surface as well as between the heat input surface of the cell and the SES, and enables superheating of the working fluid. Additionally, posts, fins or heat pipes may be provided in the low pressure zone of the cell between members of the SES to simultaneously increase the conductance between the heat input surface of the cell and the evaporation surface, raise the temperature of the SES, through radiation and/or conduction heat transfer, and isothermalize the SES. Furthermore, posts, fins, or heat pipes may extend from the heat input surface of the cell to a location proximate the SES on the high pressure side to simultaneously raise the temperature of the SES through radiation and conduction heat transfer, isothermalize the SES, and superheat the working fluid through convective heat transfer.

    摘要翻译: 本发明提供一种AMTEC电池,其具有从电池的热输入表面到工作流体,蒸发表面和SES的更坚固的功率电导路径(传导,辐射,对流和潜热传递)。 更具体地,本发明的一个实施例包括在SES支撑板和热输入表面之间延伸的套环,柱和/或桥。 在另一个实施例中,多个通道或管道在热输入表面和SES支撑板之间延伸。 这些实施例同时增加了电池的热输入表面和蒸发表面之间以及电池的热输入表面和SES之间的热传导路径,并且使得工作流体能够过热。 另外,可以在SES的构件之间的电池的低压区域中设置柱,散热片或热管,以同时增加电池的热输入表面与蒸发表面之间的电导,从而提高SES的温度,通过 辐射和/或传导热传递,并等温SES。 此外,柱,翅片或热管可以从电池的热输入表面延伸到靠近高压侧的SES的位置,以通过辐射和传导热传递同时提高SES的温度,使SES等温,以及 通过对流传热使工作流体过热。