Energy efficiency analysis of data center air conditioning systems based on annual meteorological parameters in typical global cities

The data center air conditioning system is closely related to the outdoor meteorological parameters, and the energy consumption of the data center air conditioning system varies greatly in different regions of the world. Based on the climate characteristics of four major cities in the world, including New York, London, Beijing and Shanghai, this paper summarizes the optimization measures of water-cooled chilled water systems commonly used in data centers, and analyses the energy saving performance of the optimized data center air conditioning system at home and abroad.