COOLING METHOD FOR OPERATING A FUEL-CELL SYSTEM

    公开(公告)号:US20240266561A1

    公开(公告)日:2024-08-08

    申请号:US18569872

    申请日:2022-06-01

    Abstract: The invention relates to a method for operating a fuel cell system, comprising a cooling circuit for cooling at least one fuel cell, wherein a coolant circulating in the cooling circuit is cooled with a coolant cooler, which also has air flowing through it. The air is supplied by a fan assembly. The fuel cell system also comprises an evaporative cooling unit, which, upstream of the coolant cooler, introduces water into the air supplied by the fan assembly. An increased efficiency of the fuel cell system alongside sufficient cooling of the at least one fuel cell is achieved in that the evaporative cooling unit introduces water at a maximum rate before the fan assembly reaches its maximum air mass flow. The invention also relates to a fuel cell system of this type, as well as a motor vehicle comprising a fuel cell system of this type.

    BIPOLAR PLATE FOR LOW PRESSURE FEED ELECTRODE OPERATION
    7.
    发明申请
    BIPOLAR PLATE FOR LOW PRESSURE FEED ELECTRODE OPERATION 审中-公开
    用于低压进料电极操作的双极板

    公开(公告)号:US20170077528A1

    公开(公告)日:2017-03-16

    申请号:US15360905

    申请日:2016-11-23

    Applicant: Xergy Inc.

    Abstract: A bipolar plate having side ports is described for use with an electrochemical cell. A side port having a high aspect ratio will have an effect on the partial pressure of the reactant gasses and prevent high pressure drop of the working fluid transport to the electrodes. The membrane electrode assembly may have a high aspect ratio and the port opening may be on the long side of the bipolar plate. The electrochemical cell may be configured in an enclosure that is maintained at less than atmospheric pressure which further increases the need for low pressure drop fuel deliver to the electrodes, especially in electrochemical compressor applications.

    Abstract translation: 描述了具有侧端口的双极板与电化学电池一起使用。 具有高纵横比的侧端口将对反应物气体的分压产生影响,并防止工作流体输送到电极的高压降。 膜电极组件可以具有高纵横比,并且端口开口可以在双极板的长边上。 电化学电池可以被配置在保持在小于大气压的外壳中,这进一步增加了对电极的低压降燃料输送的需要,特别是在电化学压缩机应用中。

    Direct liquid feed fuel cell system
    9.
    发明授权
    Direct liquid feed fuel cell system 有权
    直接液体进料燃料电池系统

    公开(公告)号:US09118041B2

    公开(公告)日:2015-08-25

    申请号:US11442530

    申请日:2006-05-30

    Abstract: A direct liquid feed fuel cell system that includes a housing, a fuel cell stack in which air flow channels are formed, in the housing; and a fan that supplies air between the housing and a part of the air flow channels, wherein the fuel cell stack is obliquely mounted toward the fan. The fuel cell system can be arranged so that the airflow channels are substantially vertical, in order for air to be supplied between the housing and an upper part of the airflow channels, with the fuel cell stack downwardly obliquely mounted toward the fan. Furthermore, an outlet in the housing on an opposite side of the fuel cell stack from the fan can allow air that has passed through the air flow channels to be exhausted from the fuel cell system after passing through a space between a part of the fuel cell stack and the housing.

    Abstract translation: 一种直接液体进料燃料电池系统,其包括壳体,其中形成有空气流动通道的燃料电池堆; 以及风扇,其在所述壳体和所述空气流动通道的一部分之间提供空气,其中所述燃料电池堆向所述风扇倾斜安装。 燃料电池系统可以布置成使得气流通道基本垂直,以便在壳体和气流通道的上部之间供应空气,燃料电池堆向下倾斜地安装到风扇上。 此外,在燃料电池堆与风扇相反侧的壳体中的出口可以允许已经通过空气流动通道的空气在通过燃料电池的一部分之间的空间从燃料电池系统排出 堆叠和房屋。

    Vehicle with a cooling system for cooling and method for cooling in a vehicle
    10.
    发明授权
    Vehicle with a cooling system for cooling and method for cooling in a vehicle 有权
    具有用于冷却的冷却系统的车辆和车辆中的冷却方法

    公开(公告)号:US09052128B2

    公开(公告)日:2015-06-09

    申请号:US13677804

    申请日:2012-11-15

    Inventor: Marco Grefe

    Abstract: A cooling system of a vehicle with a fuel cell includes an absorbent circuit with an absorber tank, a regenerator tank, an absorbent pump and a first pressure reduction means and a coolant circuit with a condenser connected to a steam outlet of the regenerator tank, a second pressure reduction means and an evaporator arranged between a steam inlet of the absorber tank and the second pressure reduction means. The regenerator tank is designed to desorb the coolant in solution in the absorbent by absorbing a first quantity of heat and to introduce it in a vaporous state into the condenser. The evaporator is designed to evaporate the coolant while absorbing a second quantity of heat and to introduce it in the vaporous state into the absorber tank. At least one of the first and of the second quantity of heat could be provided by the fuel cell.

    Abstract translation: 具有燃料电池的车辆的冷却系统包括具有吸收罐的吸收回路,再生器箱,吸收泵和第一减压装置以及具有连接到再生器箱的蒸汽出口的冷凝器的冷却剂回路, 第二减压装置和设置在吸收罐的蒸汽入口与第二减压装置之间的蒸发器。 再生器箱被设计成通过吸收第一热量并将其以蒸汽状态引入冷凝器来解吸吸收剂中的溶液中的冷却剂。 蒸发器设计成在吸收第二热量的同时蒸发冷却剂并将其以蒸气状态引入吸收器罐中。 燃料电池可以提供第一和第二热量中的至少一个。

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