摘要
数据中心风侧直接自然冷却技术在不同地区的应用效果存在着较大差异。以全国各省会城市气象参数及近五年空气质量月报为基础,通过计算各项指标的变异系数,筛选出T_(out)≤27℃且-9℃≤DPT≤15℃ h数、近五年平均PM_(2.5)、SO_(2)、NO_(2)月均质量浓度作为分区指标,将全国划分为8个气候区域,并与TGG提出的分区条件进行了对比分析。结果表明:对于应用风侧直接自然冷却的数据中心,最佳的选址地区为气候1区,包括贵阳、昆明和拉萨,其利用潜力大且风险小;气候7、8区的利用风险大,风险控制成本较高;此外,露点温度下限大大地限制了风侧直接自然冷却在寒冷干燥地区的应用,而对于处于夏热冬冷、夏热冬暖、温和地区的城市影响甚微。
There are great differences in the application effect of direct air⁃side free cooling for data centers in different regions.Based on the meteorological parameters of provinces and cities in China and the monthly reports of air quality in recent five years,the hours of T_(out)≤27℃ and-9℃≤DPT≤15℃,and the average monthly mass concentrations of PM_(2.5),SO_(2) and NO_(2) in the past five years were selected as zoning indexes by calculating the coefficient of variation of each index.Eight climatic regions were divided across China and the zoning result was compared with the TGG zoning method.The result shows that for data centers with direct air⁃side free cooling,the best location is climate zone 1,including Guiyang,Kunming,and Lhasa,which has great utilization potential and low risk.For climate zones 7 and 8 with high utilization risk,the cost of risk control is high.In addition,the bottom limit of dew point temperature greatly limits the application of direct air⁃side free cooling in cold and dry regions but has limited impacts on cities in hot⁃summer and cold⁃winter,hot⁃summer,and warm⁃winter and mild zones.
作者
李佐洋
白雪莲
徐鑫
米冉冉
LI Zuoyang;BAI Xuelian;XU Xin;MI Ranran(School of Civil Engineering,Chongqing University,Chongqing 400000,China)
出处
《建筑科学》
CSCD
北大核心
2022年第10期152-157,共6页
Building Science
基金
国家自然科学基金项目“基于服务器热湿环境形成机理的数据中心能耗特性研究”(51778080)
重庆市技术创新与应用发展项目“重庆地区数据中心自然冷却及其配套技术措施研发及应用”(cstc2020jscx⁃msxmX0184)。
