| 摘要 |
A fuel cell unit being capable of calibrating a concentration value of an aqueous fuel solution by use of a reference concentration value, including: a fuel cell; a fuel tank which stores a fuel for the fuel cell; a mixing tank which produces the aqueous fuel solution supplied to the fuel cell; a concentration sensor which detects the concentration of the aqueous fuel solution produced in the mixing tank; a fuel pump which feeds, into the mixing tank, the fuel of the fuel tank; and a controller which acquires a current value output from the fuel cell and the concentration value of the aqueous fuel solution, both of which vary by controlling the fuel pump, and calibrates the concentration value of the aqueous fuel solution by use of the acquired concentration value of the aqueous fuel solution and the reference concentration value.
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