| 摘要 |
Provided is a fuel cell waste heat recovery system, which recovers waste heat of cooling water generated from a fuel cell to increase heat efficiency and keeps cooling water at fixed temperature for the optimum reaction condition of a fuel cell. The fuel cell waste heat recovery system for recovering waste heat to be generated from a fuel cell comprises: a fuel cell system(10) to be cooled by cooling water that circulates in closed circuits(110,120,130); a waste heat recovery heat exchanger(20) for recovering waste heat of the cooling water; a heat storage tank(30) for storing heating water; a waste heat recovery pipe including a waste heat recovery heat exchange part(47) which exchanges heat in the waste heat recovery heat exchanger(20), and a storage heat exchange part(45) which exchanges heat in the heat storage tank(30); an auxiliary heat source part which includes a boiler(50) for heating the heating water of the heat storage tank(30); direct water heating pipes(60,61,62) which are disposed in such a way that direct water exchanges heat with the heating water in the heat storage tank(30) and subsequently is further heated in the auxiliary heat source part; and a heating water heating pipe having a heating water exchanging pipe(71) to be connected to the heat storage tank(30). |
