Air conditioning system design and energy saving analysis of a data center in Wuhan

This paper analyses the amount of free cooling resources in Wuhan, and presents the operating logic of the conventional system process of the data center. Combined with the fragmented distribution of complete free cooling on the time axis, this paper points out the reasons for its low efficiency in using free cooling. In order to improve the energy efficiency of the data center, this project adopts the water mixing technology with cold storage tank to release cold. The air conditioning system is analysed in detail, and a new type of water mixing temperature control valve is adopted to achieve the purpose of rapid water mixing. Under full load conditions of IT equipment, the data center has a PUE of 1.336, which meets the design requirements and has significant energy-saving effects.