关于数据中心机房利用新风维持正压的研究
Research on using outdoor air to maintain positive pressure in a data center computer room
摘要：
对数据中心机房的新风换气次数与室内外压差的关系进行了研究，认为按照相关规范推荐的新风送风量考量，换气次数法估算值偏大，按照缝隙法计算值偏小。建议在缝隙法基础上，依据机房整体密封性及门扇数量附加漏风面积，数据中心机房的经济性新风换气次数宜取0.8～1.1 h-1。
Abstract：
Studies the relationship between the number of outdoor air change rate in a data center computer room and the difference between indoor and outdoor pressure. Thinks that the estimated value of outdoor air supply rate is large by the air change rate method and the calculated value is small by the gap method according to the outdoor air supply rate recommended by relevant specifications. Suggests that the air leakage area should be added according to the overall tightness of the data center room and the number of door leaves on the basis of the gap method, and the economic outdoor air change rate of the data center computer room should be 0.8 to 1.1 h-1.
Keywords:data center, outdoor air rate, positive pressure difference, energy saving, air leakage area, air change rate, gap