| 摘要 |
PURPOSE:To perform maximum heat accumulation in the limit of heat accumulation possibility according to the state of heat accumulating tanks by calculating the time of heat accumulation from the addition of the amount of water of a heat source to be added to the total sum of the heat accumulating water in water tanks which have not completed heat accumulation and determining operation schedule based on the calculated time of heat accumulation. CONSTITUTION:On the basis of the temperature in a heat accumulating tank 10 the difference of temperature between a standard temperature tSTD of heat accumulation and temperature at completion of heat accumulation, tFULL is checked successively for each unit water tank starting from a unit water tank 1, and the amount of water capable of heat accumulation (volume of water tanks for which heat accumulation is not completed) is calculated from the total sum of the amount of heat accumulation water up to a unit water tank in which heat accumulation is not completed to the unit water tank 1. On the other hand an actually measured value of the amount of water of load and the amount of water which is dependent on the number of heat sources 20 are sought to obtain the difference of the amount of heat accumulation water which is the difference of the amount of heat source water at present and actually measured amount of water of load, The time of heat accumulation is calculated from the amount of water capable of heat accumulation and the amount of heat accumulation water. If the time of heat accumulation ranges over the time of heat accumulation completion, the time of heat accumulation is calculated again after regulating the increase or decrease in the amount of water of a heat source 20 which is the subject if the heat sources is capable of covering the decrease of more than one heat accumulation tank. And, from the heat accumulation time calculated as described above, the scheduling is determined.
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