Abstract: A fuel cell device may be realized by including a fuel cell module including a container and a fuel cell housed in the container; a plurality of auxiliary machines for operating the fuel cell module; and an exterior case that houses the fuel cell module and the auxiliary machines, wherein at least one auxiliary machine of the plurality of auxiliary machines may be an upper auxiliary machine which is located on an upper side of the fuel cell module, and the fuel cell device may further include a fan located on the upper side of the fuel cell module.

Abstract: A fuel cell device may be realized by including a fuel cell module including a container and a fuel cell housed in the container; a plurality of auxiliary machines for operating the fuel cell module; and an exterior case that houses the fuel cell module and the auxiliary machines, wherein at least one auxiliary machine of the plurality of auxiliary machines may be an upper auxiliary machine which is located on an upper side of the fuel cell module, and the fuel cell device may further include a fan located on the upper side of the fuel cell module.

Abstract: A cell stack device in the present disclosure includes a cell stack including a plurality of arranged cells, and a first manifold configured to fix a first end of each of the cells with a sealing material and supply reactive gas to the cells. The first manifold includes a frame body configured to fix the first end of each of the cells with the sealing material inside the frame body, and a plate body bonded to a first end portion of the frame body and having a rigidity lower than that of the frame body. A module in the present disclosure includes a housing and the cell stack device housed in the housing. Furthermore, a module housing device in the present disclosure includes an external casing, the module in the external casing, and an auxiliary device configured to operate the module in the external casing.

Abstract: A cell stack device is provided with a cell stack comprising a plurality of cells, a manifold fixing an end of each cell of the plurality of cells thereto with a sealing material, and configured to allow a reaction gas to be supplied to each cell. An electrically conductive end member is disposed at an end portion of the cell stack in an arrangement direction of the cells, and suppressing deformation of each cell, such that a first end of the electrically conductive end member at a side of the manifold is separated from the manifold.

Abstract: A cell unit includes a cell stack, two manifolds. The cell stack includes cells. Each cell has a elliptical columnar shape. The each cell includes an inner electrode layer, a solid oxide solid electrolyte layer, an outer electrode layer, a first portion, a second portion, a middle portion and a distribution hole. The solid oxide solid electrolyte layer is on the inner electrode layer. The outer electrode layer is on the solid oxide solid electrolyte layer. The first portion is at one end of the each cell in the length direction of the cells. The second portion is at the other end of the each cell in the length direction. The middle portion is located between the first portion and the second portion. The distribution hole passes through from the first portion to the second portion. A first manifold fixes the first portions. A second manifold fixes the second portions.

Abstract: A cell stack device in the present disclosure includes a cell stack including a plurality of arranged cells, and a first manifold configured to fix a first end of each of the cells with a sealing material and supply reactive gas to the cells. The first manifold includes a frame body configured to fix the first end of each of the cells with the sealing material inside the frame body, and a plate body bonded to a first end portion of the frame body and having a rigidity lower than that of the frame body. A module in the present disclosure includes a housing and the cell stack device housed in the housing. Furthermore, a module housing device in the present disclosure includes an external casing, the module in the external casing, and an auxiliary device configured to operate the module in the external casing.

Abstract: A fuel cell system includes a fuel cell that generates electric power using fuel gas and oxygen-containing gas and combusts fuel gas remaining unused for generation of electric power; a fuel gas supply line that supplies the fuel gas to the fuel cell; and an on-off valve disposed in the fuel gas supply line. A shutdown transition mode in which the fuel gas in the fuel gas supply line downstream from the on-off valve is supplied to the fuel cell at a flow rate smaller than that at a time of generation of electric power and is combusted therein after the on-off valve is closed, and a shutdown mode which is started after the shutdown transition mode are provided as an emergency shutdown mode in which the fuel cell undergoes emergency shutdown when the on-off valve of the fuel gas supply line is closed.

Abstract: A cell stack device according to the present invention is provided with: a cell stack comprising a plurality of cells; a manifold fixing an end of each cell of the plurality of cells thereto with a sealing material, and configured to allow a reaction gas to be supplied to the each cell; and an electrically conductive end member disposed at an end portion of the cell stack in an arrangement direction of the cells, and suppressing deformation of the each cell, wherein a first end of the electrically conductive end member at a side of the manifold is separated from the manifold.

Abstract: To provide a fuel cell system that is advantageous for maintaining an S/C value in an appropriate region even when a rotational speed of the water pump is abnormal with respect to a target rotational speed region during a power generation operation of a fuel cell. When the rotational speed of the water pump is abnormal with respect to the target rotational speed region during the power generation operation of the fuel cell, the control unit repeats a short time increase and a short time decrease of the S/C value in a reforming reaction, by alternately repeating an increase in a short time (?T increase, within 10 seconds) and a decrease in a short time (?T decrease, within 10 seconds) of the rotational speed of the water pump with respect to an abnormal rotational speed, while continuing the power generation operation of the fuel cell, thereby averaging the S/C value.

Abstract: A hybrid device includes an electrolysis cell stack device, a fuel cell stack device comprising and a vaporizer. The electrolysis cell stack device includes an electrolysis cell stack including a plurality of electrolysis cells that generate a hydrogen-containing gas from a water vapor-containing gas. Each electrolysis cell includes a first electrolysis cell gas-flow passage extending lengthwise from a first end to a second end of the each electrolysis cell. The fuel cell stack device includes a fuel cell stack including a plurality of fuel cells. Each fuel cell includes a fuel cell gas-flow passage extending lengthwise from a first end to a second end of the each fuel cell. The vaporizer is disposed near the fuel cell stack for generating the water vapor-containing gas to be supplied to the electrolysis cell stack device. At least a portion of the hydrogen-containing gas is supplied to the fuel cell stack device.

Abstract: Problem: To provide a cell unit, a cell stack device, a cell unit device and a module. Resolution means: A cell unit (1) according to one embodiment of the present invention is characterized by comprising: a cell stack (7) comprising a plurality of cells (2), each of which has a columnar shape and has an inner electrode layer (9), a solid electrolyte layer (10) of a solid oxide, and an outer electrode layer (11), while having a distribution hole (13) that penetrates the cell from one end to the other end in the longitudinal direction; a first manifold (3) for fixing one end parts of the plurality of cells (2) and supplying water vapor to the distribution holes (13); and a second manifold (5) for fixing the other end parts of the plurality of cells (2) and recovering a gas that is discharged from the distribution holes (13).

Abstract: A fuel cell system includes a fuel cell that generates electric power using fuel gas and oxygen-containing gas and combusts fuel gas remaining unused for generation of electric power; a fuel gas supply line that supplies the fuel gas to the fuel cell; and an on-off valve disposed in the fuel gas supply line. A shutdown transition mode in which the fuel gas in the fuel gas supply line downstream from the on-off valve is supplied to the fuel cell at a flow rate smaller than that at a time of generation of electric power and is combusted therein after the on-off valve is closed, and a shutdown mode which is started after the shutdown transition mode are provided as an emergency shutdown mode in which the fuel cell undergoes emergency shutdown when the on-off valve of the fuel gas supply line is closed.