关键词: 计算流体动力学模型, 仿真温度, 精密空调节能, 机房节能

Abstract: In view of the problem that the temperature range of the data center is wider in the new national standard and the energy saving strategy of the original precision air conditioning needs to be improved，but there are safety risks in adjusting the precise air conditioning directly，a method based on Computational Fluid Dynamics（CFD）was proposed to conduct numerical simulation on the temperature environment of the computer room and study the feasibility of energy saving under the new national standard. Firstly，a CFD simulation model of the computer room was established，and the simulation software 6SigmaDC was used to simulate the environment temperature of the current computer room to obtain the simulation temperature distribution of the computer room. Then the effectiveness of the simulation model was verified by comparing the measured temperature distribution with the simulated one. Finally，by optimizing the parameter setting of the precision air conditioner in the simulation model，the energy-saving scheme of the precision air conditioner in the current operating environment of the computer room was obtained. The experimental results show that the simulation model can indeed reflect the temperature field of the real computer room，as well as the influence of air conditioning parameters on the temperature field of the computer room.

Key words: Computational Fluid Dynamics (CFD) model, simulation temperature, energy saving for precision air conditioning, energy saving in computer room