| 摘要 |
PROBLEM TO BE SOLVED: To provide a cogeneration system executing a heating operation capable of suppressing degradation of energy-saving performance while reducing noise according to necessity.SOLUTION: A cogeneration system can execute a silent heat storage heating operation for circulating hot water/water stored in an upper side of a hot water storage tank 3, successively to a heat exchanger 6 for recovering exhaust heat and a heat exchanger 7 for heating and returning the hot water/water to a lower side of the hot water storage tank 3 while operating a cogeneration device 5 in a low output mode. When a reception portion 21a receives reservation information including a reserved operation time zone of the silent heat storage heating operation, a predicted silent heat storage heating thermal load necessary for executing the silent heat storage heating operation is led out on the basis of received reservation information, a hot water storage operation is implemented while including a heat storage amount for target silent heating which should be stored in the hot water storage tank 3 to compensate the predicted silent heat storage heating thermal load, to the target heat storage amount, and the silent heat storage heating operation is implemented in the reserved operation time zone of the silent heat storage heating operation received by the reception portion 21a.SELECTED DRAWING: Figure 1 |
