Power generation system with use of fuel cell

Power generation system with use of fuel cell, comprising:

• a cell stack including alternately piled up fuel cell elements and separator plates, each fuel cell element having an anode electrode, an electrolyte and a cathode electrode;
• a first reformer for partially reforming fuel gas to anode gas interposed between the separator plates instead of the cell element, the first reformer including a first reforming plate;
• a second reformer assembly for reforming the remainder of the fuel gas to the anode gas, the second reformer assembly including a plurality of plate type second reformers;
• a plate type heat exchanger including a preheating chamber in which the fuel gas and the steam are introduced, and
• a heating chamber in which the anode gas is introduced;
• a first intermediate holder interposed between the cell stack and the second reformer assembly as they are piled up;
• a second intermediate holder interposed between the second reformer assembly and the plate type heat exchanger as they are piled up;
• an upper and a lower holders for sandwiching the cell stack, the first and second intermediate holders, the second reformer assembly and the plate type heat exchanger, so as to make them one unit;
• and
• gas passages formed within the cell stack, the second reformer assembly, the plate type heat exchanger, and the first intermediate, the second intermediate, the upper and the lower holders.