| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell cogeneration system in which high temperature water is stably supplied from a heated water storage tank by maintaining high temperature stratification in the heated water storage tank even when using heat using equipment. <P>SOLUTION: A second heated water storage tank 3b connects to the first heated water storage tank 3a via a communicating pipe 17, and a heated water circuit 7 supplies heated water stored in the first heated water storage tank 3a to the second heated water storage tank 3b via the heat using equipment 6. Intermediate temperature water after heat radiation in the heat using equipment 6, when flowing into the second heated water storage tank 3b, forces out low temperature water in the second heated water storage tank 3b, which in turn flows into the first heated water storage tank 3a via the communicating pipe 17. A temperature difference of 40 degrees or higher between the water flowing into the first heated water storage tank 3a and high temperature water in an upper section of the first heated water storage tank 3a continuously holds high temperature stratification in the first heated water storage tank 3a, from which the high temperature water is supplied stably. <P>COPYRIGHT: (C)2004,JPO |
