风冷数据中心热回风预热市政冷水的节能与可行性分析  

Energy saving and feasibility analysis of municipal cold water preheating by hot return air in air-cooled data center

作　　者：陈信甫 梁珍[1] Chen Xinfu;Liang Zhen(Institute of Heating,Ventilation and Air Conditioning,College of Environmental Science and Engineering,Donghua University)

机构地区：[1]东华大学环境科学与工程学院,暖通空调研究所

出　　处：《制冷与空调》2023年第11期80-88,共9页Refrigeration and Air-Conditioning

摘　　要：以上海市某风冷数据中心为研究对象,基于TRNSYS分析回收利用风冷数据中心热回风以预热市政供水的效益,旨在预热供水的同时降低其制冷能耗,以达到节约能源的目的。并分别研究对比有无余热回收系统时在ASHRAE规定温度内18℃、20℃、22℃、24℃、26℃的能耗表现、PUE以及碳排放的减少量。模拟结果表明:与传统风冷数据中心相比,加入余热回收系统的数据中心能耗分别降低28.8%、34.6%、38.9%、47.1%和52.6%;其PUE也在全部工况下降到了1.2以内;碳排放量的减少量分别达到了28.8%、34.6%、38.9%、47.1%和52.6%。表明了回收利用风冷数据中心热回风预热市政供水有着明显的节能减排效果,并且在提高送风温度的条件下其效果会变得更加显著。Taking an air-cooled data center in Shanghai as the research object,this paper analyzes the benefits of recycling and utilizing the hot return air of the air-cooled data center to preheat municipal water supply based on TRNSYS,aiming to reduce the energy consumption of the air conditioning system while preheating water supply,so as to achieve the effect of energy saving and emission reduction.The energy consumption performance,PUE and carbon emission reduction under 18℃,20℃,22℃,24℃,26℃specified by ASHRAE with or without waste heat recovery system were studied and compared respectively.The simulation results show that compared with the traditional air-cooled data center,the energy consumption of the data center with waste heat recovery system is reduced by 28.8%,34.6%,38.9%,47.1%and 52.6%,respectively.Its PUE also decreased to less than 1.2 in all working conditions;The reduction of carbon emissions accounted for 28.8%,34.6%,38.9%,47.1%and 52.6%,respectively.The results show that recycling and utilization of air cooled data center heat return air preheating municipal water supply has obvious energy-saving and emission reduction effect,and the effect will become more significant under the condition of increasing the supply air temperature.

关 键 词：风冷数据中心 余热回收 送风温度 TRNSYS PUE 碳排放 

分 类 号：TB6[一般工业技术—制冷工程]