| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cogeneration system in which the temperature of hot water being supplied to dwelling units is stabilized while facilitating maintenance and management. SOLUTION: An open type hot water storage tank 3 comprises a low temperature tank 3L being supplied with water by a water supply means Wb, and a high temperature tank 3H being supplied with hot water in a state of overflow from the low temperature tank 3L. A waste heat recovery circulation means Ce for circulating hot water over a waste heat recovery heat exchanger 2 and the hot water storage tank 3 is arranged to circulate hot water through a waste heat recovery circulation passage 11 for taking out hot water from the low temperature tank 3L and returning it back to the low temperature tank 3L. A hot water supply circulation means Cs for circulating hot water over the hot water storage tank 3 and a plurality of dwelling units H includes in a region or an apartment house is arranged to circulate hot water through a hot water supply circulation passage 14 for taking out hot water from the high temperature tank 3H and returning it back to the low temperature tank 3L.</p> |
