Development of high-efficiency magnetic levitation chillers for data centers in hot summer and cold winter zone

As the urban digital transformation speeds up, the boost of IT equipment and servers results in the increase of cooling load and energy consumption of data centers. In order to reduce the energy consumption in data centers, this research investigates a high-efficiency magnetic levitation chiller with low-pressure ratio. Optimization design is implemented including identifying the optimal unit capacity, enabling a wider range of the compression ratio and optimizing the operation strategy. The improved system can achieve an annual comprehensive energy efficiency ratio of more than 5, which contributes to great potential of large-scale application in future.