A fuel cell electrical power system includes a first fuel cell module, a second fuel cell module, a heat exchanger, a common coolant, a first coolant piping branch, and a second coolant piping branch. A first pump and two valves are disposed on the first c...

The cooling apparatus separates the gas introduced into the cooling liquid which is circulated between fuel cell (1) and a heat exchanger (2). The separated gas is mixed with air supplied to or exhausted from the fuel cell and discharged outside the system...