FUEL CELL COGENERATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a fuel cell cogeneration system which can reduce temperature of exhaust gas with a simple and low-costed structure while avoiding large-sizing of a condensation heat exchanger for cooling the fuel cell exhaust gas, and thereby can contribute to highly efficient operation by attaining improvement in heat recovery efficiency.SOLUTION: An external fluid heat recovery means 111 is installed at the downstream side of an exhaust gas heat recovery means 110 viewed from an exhaust heat recovery water supply means 109. A solar power generation device 201 which is independent of the fuel cell unit 10 is connected to the external fluid heat recovery means 111, and a PV coolant (for example, water) which gives heat to the exhaust heat recovery water is supplied from the solar power generation device 201 side.