Application study reveals energy savings in district cooling systems with improved operational strategies.
A remote energy-saving control platform using Internet of Things technologies of a district cooling system (DCS) is established. Several refined operational strategies for the chiller station, secondary cooling water stations, and air conditioning terminals are proposed based on the system operational characteristics, achieving multilevel regulation of the DCS. The proposed operational strategies were implemented in the actual control of the DCS in a university. Compared to before implementation, the proposed platform and strategies have achieved an annual energy savings of 10.74% to 30.84% over the past 5 years and reduced carbon emissions by 0.27 million tons.
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