Abstract
District cooling system (DCS) is recognized to be highly energy efficient compared to equivalent conventional systems being operated at individual buildings. In this paper, it was verified from the performance analysis of a DCS plant based on current operation data. The seasonal coefficient of performance (COP) for the centrifugal chillers was 5.16. The value was lower compared to the design one but still higher with respect to the conventional system. Furthermore, the seasonal energy efficiency ratio of the cooling source system (EERsys) reached 3.85. The analysis showed that the lower value associated with the low occupancy ratio and lower temperature difference between the supply and return water. Our work was much significant in the planning and operation for the plant at the next stage. On the other hand, the operation experience was also worth considering for other projects.
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