摘要
数据中心余热供热是提高数据中心能源利用效率和实现冬季清洁供暖的重要途径。本文提出了一种适用于数据中心的长距离供热系统,在热源和热汇处设置多级热泵以增大供热管网供回水温差,并使用储热装置保障数据中心和供热系统的安全性,提高数据中心余热利用率。以张家口某数据中心为例进行了分析,该系统初投资为50.21元/m^(2),运行费用为26.37元/GJ,投资回收期约为5.31 a,具有较好的经济性和节能减排效果。
Collecting waste heat from data centers for district heating is an important way to improve energy efficiency and realize clean heating in winter.In this paper,a long-distance district heating system suiting for data center is proposed.Multi-stage heat pumps are installed in the heat source and sink to increase the temperature difference of network,and heat storage devices are used to ensure the safety of data center and district heating system,so as to significantly improve the utilization rate of waste heat in data center.Taking a data center in Zhangjiakou as an example,the initial investment of the system is 50.21 Yuan/m^(2),the operating cost is 26.37 Yuan/GJ,and the payback period is about 5.31 years,which has good economic,energy saving and emission reduction effects.
作者
井洋
谢晓云
江亿
Jing Yang;Xie Xiaoyun;Jiang Yi(Tsinghua University,Beijing)
出处
《暖通空调》
2024年第7期152-158,共7页
Heating Ventilating & Air Conditioning
基金
国家重点研发计划科技创新国际合作重点项目(编号:2019YFE0102700)。
关键词
数据中心
集中供热
余热利用
储热
多级热泵
data center
district heating
waste heat recovery
heat storage
multi-stage heat pump
