数据中心空气侧蒸发冷却技术性能及适用性分析  

Analysis of Performance and Applicability of Evaporative Cooling Technology on the Air Side of Data Center

作　　者：杜妍 黄翔[1] 王颖 屈名勋 薛宁静 Du Yan;Huang Xiang;Wang Ying;Qu Mingxun;Xue Ningjing(Xi'an Polytechnic University,Xi'an,710600)

机构地区：[1]西安工程大学,西安710600

出　　处：《制冷与空调（四川）》2022年第1期105-110,共6页Refrigeration and Air Conditioning

摘　　要：总结了空气侧蒸发冷却技术在数据中心的研究现状,对直接、间接及露点间接蒸发冷却技术的工作原理进行理论分析并对三者在高湿工况下的性能进行测试,结果表明,所测蒸发式冷气机最佳风速在1.8m/s;间接蒸发冷却空调机组最佳二/一次风量比为1.5;露点间接蒸发冷却空调机组最佳二/一次风量比为1.7,并且此时效率可达到96.5%,有较好的冷却效果,但同时也要注意露点间接蒸发冷却器的风阻问题。根据三者的效率预测各自在4个典型高湿度地区的自然冷却小时数,结果表明,露点间接蒸发冷却器在四个城市的自然冷却小时数均达到6600小时以上,有较大的节能空间。This paper summarizes the current research status of air-side evaporative cooling technology in the data center,theoretically analyzes the working principles of direct evaporative cooling technology, indirect evaporative cooling technology and dew point indirect evaporative cooling technology, and tests the performance of the three heat exchange core under high humidity conditions. The results show that the best wind speed of the tested evaporative air conditioner is 1.8 m/s;the best second/primary air volume ratio of indirect evaporative cooling air conditioning unit is 1.5;and for the dew point indirect evaporative cooling air conditioning unit is 1.7, meanwhile the efficiency can reach 96.5%, which has a good cooling effect, but at the same time, we must also pay attention to the wind resistance of the dew point indirect evaporative cooler. According to the efficiencies of the three heat exchange core, the natural cooling hours in the four typical high-humidity areas are predicted. The results show that the natural cooling hours of the dew point indirect evaporative cooler in the four cities all reach more than 6,600 hours, which has a large energy-saving space.

关 键 词：数据中心 蒸发冷却 露点间接蒸发冷却 二/一次风量比 适用性分析 

分 类 号：TU831.5[建筑科学—供热、供燃气、通风及空调工程]