摘要
归纳对比了数据中心热环境评价指标及其数值意义。以南京市某数据中心为例,应用数据中心专用CFD模拟软件模拟分析了4种工况下机房内的热环境与气流组织,计算了各指标的数值,并分析了其适用性。结果表明:机房中间位置机柜的环境温度相对较高,两侧位置相对较低;对于同列机柜中间及偏后位置地板格栅送风量稳定均匀,机柜出风温度较低;接近室内机组位置地板格栅出风量小,环境温度不稳定;设备安全性要求较高的机柜应置于每列的中间及偏后位置;利用SHI,RHI指标来评估机房整体的热环境,根据β,ηr指标来分析每列不同位置处设备的冷量利用及热安全。
Summarizes and compares the thermal environment evaluation indexes in data center and their values. With a data center in Nanjing, simulates the thermal environment and air distribution under four different working conditions, using CFD simulation software specialized for data center. Calculates the values of the indexes, and analyses their applicability. The results show that the surrounding temperature of cabinet in the middle area of data center room is relatively high, while lower at both of the side areas. The supply air volume from the floor grille in the middle or later area in each column is steady and uniform, and the outlet air temperature is lower. The supply air volume from floor grille close to the indoor unit is small, the surrounding temperature is unstable. The important cabinet should be placed in the middle or later area in each column. Evaluates the whole room thermal environment using SHI and RHI indexes, and analyses cold quantity utilization and thermal safety of equipment in different areas of each column using β and ηr indexes.
出处
《暖通空调》
北大核心
2016年第1期66-72,共7页
Heating Ventilating & Air Conditioning
基金
江苏省高校自然科学基金资助项目(编号:14KJB470007)
江苏省高校研究生实践创新计划项目(编号:SJLX15_0310)
