Abstract: A fuel cell module includes a fuel cell unit and a casing. The casing has hollow surface members including a front surface member, a rear surface member, a right surface member, a left surface member, and a lower surface member. A single continuous air channel is formed by connecting spaces inside of these surface members. The air channel has a fluid inlet on the front surface member for allowing the air to flow initially in the front surface member. A first flange and a second flange are provided on the front surface member.

Abstract: A control device of a fuel cell system includes an electric conductivity comparing unit for comparing the electric conductivity of the water inside the ion exchanger which is measured by the electric conductivity measuring unit with a predetermined electric conductivity range, and an ion exchange environment determining unit for arbitrarily determining whether or not air has been mixed into an ion exchanger and whether or not the ion exchange efficiency of the ion exchanger has been degraded, based on a comparison result by the electric conductivity comparing unit.

Abstract: An ion exchanger includes an apparatus body having a lower filter and an upper filter. Ion exchange resin fills a space between the lower filter and the upper filter. A water supply port is provided at a lower position of the apparatus body, and a water discharge port is provided at an upper position of the apparatus body. An air container is provided at an upper position of the apparatus body, and an electric conductivity meter is provided in the air container at a position above the water discharge port.

Abstract: A fuel cell module includes a fuel cell unit and a casing. The casing has hollow surface members including a front surface member, a rear surface member, a right surface member, a left surface member, and a lower surface member. A single continuous air channel is formed by connecting spaces inside of these surface members. The air channel has a fluid inlet on the front surface member for allowing the air to flow initially in the front surface member. A first flange and a second flange are provided on the front surface member.

Abstract: A control device of a fuel cell system includes an electric conductivity comparing unit for comparing the electric conductivity of the water inside the ion exchanger which is measured by the electric conductivity measuring unit with a predetermined electric conductivity range, and an ion exchange environment determining unit for arbitrarily determining whether or not air has been mixed into an ion exchanger and whether or not the ion exchange efficiency of the ion exchanger has been degraded, based on a comparison result by the electric conductivity comparing unit.

Abstract: An ion exchanger includes an apparatus body having a lower filter and an upper filter. Ion exchange resin fills a space between the lower filter and the upper filter. A water supply port is provided at a lower position of the apparatus body, and a water discharge port is provided at an upper position of the apparatus body. An air container is provided at an upper position of the apparatus body, and an electric conductivity meter is provided in the air container at a position above the water discharge port.