| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cogeneration system capable of stably storing the hot water of a predetermined target temperature. <P>SOLUTION: The cogeneration system includes a power generator 5; a cooling circuit 10 cooling the power generator 5 with cooling water; a heat exchanger 16 provided on the cooling circuit 10; an exhaust heat recovery circuit 12 through which hot and cold water that exchanges heat with the cooling water through the heat exchanger 16 flows; a hot water storage tank 20 storing the hot and cold water heat-exchanged by the heat exchanger 16; a control part 21; a first temperature detector 17 downstream of the heat exchanger 16 in the flow direction of the hot and cold water; and a heater 18 supplied with the electric power of the power generator 5 in this order. Based on the temperature detected by the first temperature detector 17, the control part 21 controls the flow rate of a circulation pump 13 so that the detected temperature reaches the predetermined target temperature. By this, the hot water temperature can be stably maintained to a high temperature at all times while preventing the lowering of the temperature of hot and cold water in exhaust heat recovery and securing safety. <P>COPYRIGHT: (C)2010,JPO&INPIT |
