FUEL CELL SYSTEM AND APPARATUS FOR EVALUATING FUEL CELL

摘要

PROBLEM TO BE SOLVED: To accurately measure humidity in a gas supplied to a fuel cell and/or in a gas exhausted from the fuel cell even if a condition varies when the fuel cell generates electricity.

SOLUTION: A fuel cell system provided with the fuel cell 15 includes: a humidity sensor that is arranged in a gas duct connected to the fuel cell 15; a section for adjusting a state containing water vapor, which is placed in an upper part of gas flow than the humidity sensor and adjusts a state of water content in the gas so that the water content in the gas exists as the water vapor in the duct; and a gas state adjustment section that adjusts the state of the gas relating to accuracy when the humidity is detected by the humidity sensor for the gas flowing from the section for adjusting the state containing water vapor to the humidity sensor.

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