| 摘要 |
PURPOSE:To increase the efficiency of a power generation end by connecting the reforming chamber of a reformer to the anode inlet of an upstream side fuel cell via a fuel gas supply line, and further connecting each anode and cathode outlet of a downstream side fuel cell-to the combustion chamber of the reformer. CONSTITUTION:When natural gas NG is reformed into fuel gas FG in a reformer 30, the aforesaid gas FG is supplied to the anode 3 of an upstream side fuel cell I. Then, the gas FG reacts with carbonate CO3 generated due to reaction at the side of a cathode 2 and migrated through a reforming plate 1, thereby employing fuel. Anode gas discharged from the anode 3 of the cell I is supplied to the anode 3 of a downstream side cell II without any reaction. Then, the anode gas reacts, using fuel unused at the upstream side anode 3, and is discharged. In this case, the anodes 3 of the fuel cells I and II are laid in series and, therefore, a total fuel utilization factor can be raised, even if a fuel utilization factor is low at each anode 3. |
