| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately detect the feed water temperature and to improve calculation accuracy of a heat amount. <P>SOLUTION: The cogeneration system is equipped with a fuel cell 11, a hot water storage tank 21 for recovering exhaust heat of the fuel cell 11, a hot water storage tank temperature detector 27 for detecting the temperature of a heating medium stored in the hot water storage tank 21, a feed water temperature detector 26 for detecting the temperature of a heating medium with exhaust heat unrecovered supplied to the hot water storage tank 21, a representative temperature setting device 41 for setting the representative temperature of the heating medium with the exhaust heat unrecovered, and a heat amount calculator 42 for calculating the heat amount based on the temperature difference between the feed water temperature and the representative temperature. The representative temperature setting device 41 sets the representative temperature based on the final feed water temperature in a heat supply period in which the heating medium is supplied to a thermal load from the hot water storage tank 21. <P>COPYRIGHT: (C)2007,JPO&INPIT |
