Kyocera Corporation

Dainichi Co., Ltd.

Naoki Yokoo

Naruto Takahashi

Kyosuke Yamauchi

Takayuki Maruyama

Tatsuya Kanbayashi

Hiroyuki Sato

Mitsuhiro Nakamura

Mitsutaka Shimada

Shintaro Yanagiuchi

Tomohiro Fukagawa

Tomoki Oyanagi

Osamu Yamazaki

Shunsuke Shintani

Norihisa Shibasaki

Kazuaki Kobayashi

Yutaro Sakata

Hidetaka Ikarashi

A fuel cell system includes a fuel cell that generates power using a fuel gas and an oxygen-containing gas, a reformer including a vaporizing section and a reforming section, a raw fuel supply that supplies raw fuel, a reformed water supply that supplies reformed water, and a controller. The controller has multiple calculation formulas for calculating an amount of reformed water to be used in the reforming section in response to a requested power level from an external unit, and selects, based on an increase or a decrease in a requested current level from the external unit, a formula from the multiple calculation formulas in response to the increase in the requested current level, and a formula different from the formula to be selected for the increase from the multiple calculation formulas in response to the decrease in the requested current level.

Fuel cell system

A fuel cell device may include a fuel cell module; a condensate water recovery flow path which may recover water contained in an exhaust gas discharged from the fuel cell module as condensate water; a condensate water recovery device which may store the condensate water; and a reforming water supply flow path which may supply the condensate water to a reformer. The condensate water recovery device of the fuel cell device may include a first ion exchange container which may contain an ion exchange resin; and a first storage container which may store the condensate water. The first ion exchange container may be disposed inside the first storage container with a space from the first storage container, and may be attachable to and detachable from the first storage container.

Fuel cell device

A reformer of the present disclosure includes a reformer body having a cylindrical shape that carries out a reforming reaction by a raw fuel gas and water supplied thereto, the reformer body including therein a vaporization portion which generates steam and a reforming portion which reacts the steam generated in the vaporization portion with the raw fuel gas to generate a reformed gas, at least one of a convex portion and a rough portion having a higher degree of surface roughness than that of other portions, being disposed on at least one of an inner circumferential surface and an outer circumferential surface of the reformer body.

Reformer, cell stack apparatus, fuel cell module, and fuel cell apparatus

A fuel cell module includes: a cell stack apparatus including a cell stack including an array of a plurality of fuel cells, a manifold which feeds a fuel gas to each of the fuel cells, and a reformer which reforms a raw fuel; an oxygen-containing gas introduction plate which feeds an oxygen-containing gas to each of the fuel cells; and a housing which houses the cell stack apparatus and the oxygen-containing gas introduction plate. The housing includes a box having an open side and a lid which closes the open side of the box, and the box has a length of the open side which is greater than a maximum length of a projected plane of the cell stack apparatus as viewed from a lateral side of the cell stack apparatus.

Fuel cell module, fuel cell apparatus, and fuel cell module manufacturing method

A reformer of the present disclosure includes a reformer body which has a cylindrical shape and extends horizontally, introducing raw fuel and water to perform a reforming reaction, the reformer body including therein a vaporization portion which generates steam, and a reforming portion which reacts the steam generated in the vaporization portion with raw fuel to generate a reformed gas; a raw fuel introduction pipe which introduces the raw fuel into the reformer body; a water introduction pipe including therein a water passage which introduces water into the reformer body; and a vaporization accelerating portion which is disposed in at least one of the vaporization portion and the water introduction pipe and accelerates vaporization of water in the vaporization portion.

Growing community of inventors

Niigata, Japan

Naoki Yokoo