Power generation system using molten carbonate type fuel cell.

摘要

An apparatus comprises a plurality of fuel cells (I, II, III) connected to each other in series in a direction a cathode gas flows. Each fuel cell has a cathode chamber (2) into which the cathode gas is supplied. Intermediate cathode gas lines (27, 28) connect the cathode chambers (2) in series. Heat exchangers (28, 30) are provided on the intermediate cathode gas lines (27, 29) in a manner such that heat exchange takes place between the gas supplied to the most upstream fuel cell (I) and gas entering the cathode chambers (2) of the fuel cells (II, III) downstream of the most upstream fuel cell (I). An air preheater (7) is provided on an intersection of a line (11) extending from the most downstream fuel cell (III) and a line (8) reaching the most usptream fuel cell (I) so that the gas supplied to the most upstream fuel cell (I) is preheated by a high temperature has discharged from the most dwonstream fuel cell (III) at the air preheater (7) before entering the heat exchangers (28, 30).