| 摘要 |
PURPOSE:To improve the efficiency and energy saving effect by a method wherein the capacity is controlled stepwise in the order of the capacity calculated in terms of total capacity, specified decrease of capacity and preset calculating formula in an airconditioning system wherein multiple cold and hot water generator and loading unit are respectively connected by a closed loop. CONSTITUTION:A cold and hot water generator is variable capacity controllable type. The generator is operated at total capacity Vo from the outlet temperature T considerably lower than the target controlled temperature T4 to the set up temperature T2 to calculate the temperature fluctuation width DELTAtheta1 per unit time of the outlet water temperature from the set up temperature T1 to T2 during the operation. The generator is operated at the cold and hot water producing capacity DELTAV from the temperature T2 to the target temperature T4, e.g. a capacity decreased by 10%, to obtain the temperature fluctuation width DELTAtheta2 per unit time during the operation. After reaching the target temperature T4, the volume of produced cold and hot water is controlled by the optimum operating capacity Vop obtained by specific calculating formula in terms of each temperature fluctuation width DELTAtheta1, DELTAtheta2 and decreased capacity DELTAV. In such a constitution, the system may be operated at the optimum operating capacity while improving the efficiency and energy saving effect. |
