藏区数据中心热回收式直接蒸发冷却机组的设计与测试  

Design and testing of heat recovery direct evaporative cooling units for data centers in Tibetan areas

作　　者：黄翔 代聪 褚俊杰 史东旭 梁凯 苏林 颜利波 陶昌军 HUANG Xiang;DAI Cong;CHU Junjie;SHI Dongxu;LIANG Kai;SU Lin;YAN Libo;TAO Changjun(School of Urban Planning and Municipal Engineering,Xi’an Polytechnic University,Xi’an 710048 China;Guangdong Midea Heating&Ventilating Equipment Co.Ltd.,Foshan 528311,Guangdong,China;Tibet Ningsuan Information Technology Co.Ltd.,Lhasa 850014,China)

机构地区：[1]西安工程大学城市规划与市政工程学院,陕西西安710048 [2]广东美的暖通设备有限公司,广东佛山528311 [3]西藏宁算科技集团有限公司,西藏拉萨850014

出　　处：《西安工程大学学报》2023年第5期25-31,共7页Journal of Xi’an Polytechnic University

基　　金：深圳市科技研发资金资助可持续发展项目(KCXFZ20201221173409026);西安工程大学研究生创新基金(chx2023033)。

摘　　要：为了降低数据中心能耗,助力实现“双碳”目标,针对藏区特殊的气候条件和良好的空气质量,设计1种能够同时满足蒸发冷却制冷和余热回收功能的数据中心模块化机组。根据自然冷源利用率100%的混合模式、直接新风模式及蒸发冷却模式3种制冷运行模式,在600 kW焓差试验台通过模拟藏区极端气象工况及数据中心内部温度分布对其性能进行测试。结果显示:在相应工况下机组风量、机外静压、蒸发冷却模块出风温度和余热回收模块热回收量均满足设计要求;对比机组额定风量运行状态与最大风量运行状态机组出风温度及余热回收量,在额定风量状态下机组性能优于最大风量状态,其出风温度可达22.82℃,余热回收量为295.78 kW,此时性能系数COP为15.91。In order to reduce energy consumption in data centers and help achieve the goal of“double carbon”,a modular unit for data centers is designed to meet both evaporative cooling and waste heat recovery functions according to the climate conditions and good air quality in Tibet.Based on the three refrigeration operating conditions with 100%utilization of natural cooling source,extreme meteorological conditions in Tibet and the temperature distribution inside the data center were simulated and tested on a 600 kW enthalpy difference test bench.The results show that the air volume,external static pressure,evaporative cooling module air outlet temperature and heat recovery capacity of the waste heat recovery module all meet the design requirements under the corresponding operating conditions.Comparing the air outlet temperature and waste heat recovery capacity,we found that the performance of the unit under rated airflow operation is better than that under maximum airflow operation.At this time,the air temperature can reach 22.82℃,the amount of waste heat recovery is 295.78 kW,and the COP is 15.91.

关 键 词：藏区 数据中心 直接蒸发冷却 热回收 空调机组 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]