| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell cogeneration system with improved operation efficiency. <P>SOLUTION: The fuel cell cogeneration system has its operation efficiency improved as it is provided with a fuel battery device equipped with fuel battery cells and a heat exchanger 5 for exchanging heat between exhaust gas from the fuel battery cells and water, a hot-water storage tank 17 for storing water after heat exchange, a circulation piping 16 for circulating water between the heat exchanger 5 and the hot-water storage tank 17, a drainage device for draining water stored in the tank 17, a temperature sensor for measuring temperature of water circulated between the heat exchanger 5 and the storage tank 17, a water storage device 25 for storing water of the hot-water storage tank 17, and a control device 18 for controlling operation of the drainage device so as to supply water stored in the hot-water storage tank 17 to the water storage device 25, in case temperature of the water measured by the temperature sensor remains to be above a first given temperature for a given period of time. <P>COPYRIGHT: (C)2011,JPO&INPIT |
