Numerical Simulation Study And Feasibility Study Of Combined Air Supply Method In Data Center Computer Room

With the rapid development of information technology,automatic control room,program-controlled equipment room,the application of the data center room such as network computer room more and more widely,and regulate the room indoor temperature,humidity,cleanliness is a condition precedent to ensure the normal operation of computer room equipment.The energy consumption level of the data center machine room is high,and the demand for energy saving and consumption reduction is increasingly prominent.In the energy consumption composition of the data center machine room,the energy consumption of the air conditioning system of the machine room accounts for about 40-50%.Due to the unreasonable air supply mode of the machine room,it is a waste of the cold quantity of the machine room to a certain extent.Therefore,it has great energy saving space in the air conditioning area of the machine room.Based on the existing single air supply mode still exists in some special data center room air distribution is difficult to control,in this paper,modular air supply way,the room as a whole as the unit to make a room cooling scheme,aimed to explore the feasibility of combined air distribution method is applied to the data center room,in order to better improve the room air distribution.Based on numerical simulation of the related theoretical basis,using the CFD simulation software combining with the engineering case of six different working condition of the plane numerical simulation research on room air distribution,and the numerical simulation results visualization post-processing analysis,it is concluded that computer room air conditioning system of air distribution form of the distribution of temperature,humidity and room.According to the theoretical research of evaluation index,the appropriate evaluation index is selected,the related evaluation index is calculated and solved,and the index is comprehensively evaluated and analyzed according to the solution result.Based on the qualitative and quantitative analysis results,the final conclusion is drawn:(1)Relative reference condition 1,the rest of the five kinds of working condition of the plane inside the overall situation of thermal environment and air distribution obviously improved,which combined air supply mode compared with the single air supply mode on the improvement of the machine room air distribution effect is better,working conditions with the improvement of the working condition of the working condition of 2,3 and 6 effect is more outstanding,RHI index increased by 79.3%,64.3%and 64.3%,respectively,room air cooling effect has been greatly improved.(2)Under the condition of the working condition of 2,room at both ends of A and G column cabinet energy utilization index ?r is of high value,the middle column index cabinet is lower,this heat can be larger cabinet layout in the room at both ends,heat dissipating capacity of smaller layout in the central room,to ensure the equipment in the engine room cabinet is able to run continuously work,security and stability to maintain room heating and thermal environment safety in good condition.(3)Room good airflow organization to reduce energy consumption,and in the data center computer room air conditioning system,modular air supply way compared to a single way of flexibility,can meet the demand of different parts of the machine room air supply,air distribution of computer room and the improvement of thermal environment effect is better,when the room space structure is more complicated,by choosing appropriate combined supply improvement of room air distribution,reduce energy consumption.