利用数据中心余热供热的系统设计与分析
Design and analysis of district heating systems using waste heat from data centers
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/m2,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。
Abstract：
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/m2,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.
Keywords:data center; district heating; waste heat recovery; heat storage; multi-stage heat pump