| 摘要 |
The purpose of the invention is to provide a fuel cell power generation system having a high power generation efficiency, in which the system can be operated at high temperature even if an electrolyte membrane having low methanol and water crossover is used and the amount of water necessary for generating power can be recovered even if temperature and the amount of power generation change. The fuel cell power generation system of the present invention comprises: a fuel cell stack; a fuel supply line for supplying a liquid fuel to the fuel cell stack; a fuel recovery line for recovering the exhaust fuel exhausted from the fuel cell stack into a fuel tank; a condensation means for cooling an oxidant gas supply line for supplying an oxidant gas to the fuel cell stack and the cathode exhaust gas exhausted from the fuel cell stack to condense moisture; and a water recovery line for recovering the moisture condensed by the condensation means into the fuel tank. The condensation means includes: a first heat exchanger for exchanging heat with the cathode exhaust gas, using the oxidant gas as a refrigerant; and an adjustment means for adjusting the amount of moisture condensed by the condensation means independently of the amount of the oxidant gas supplied to the fuel cell stack. |
