气候变化领域集成服务门户(CCPortal): Energy; economic; and environmental analysis of integration of thermal energy storage into district heating systems using waste heat from data centres

CCPortal

DOI	10.1016/j.energy.2020.119582
	Energy; economic; and environmental analysis of integration of thermal energy storage into district heating systems using waste heat from data centres
	Li H.; Hou J.; Hong T.; Ding Y.; Nord N.
发表日期	2021
ISSN	3605442
卷号	219
英文摘要	Data centres produce waste heat, which can be utilized in district heating systems. However, the mismatch between data centres’ heat supply and district heating systems’ heat demands limits its utilization. Further, high peak loads increase the operation cost of district heating systems. This study aimed to solve these problems by introducing thermal energy storages. A water tank and a borehole thermal energy storage system were selected as the short-term and long-term thermal energy storage, respectively. Energy, economic, and environmental indicators were introduced to evaluate different solutions. The case study was a campus district heating system in Norway. Results showed that the water tank could shave the peak load by 31% and save the annual energy cost by 5%. The payback period was lower than 15 years when the storage efficiency remained higher than 80%. However, it had no obvious benefits in terms of mismatch relieving and CO2 emissions reduction. In contrast, the borehole thermal energy storage increased the waste heat utilization rate to 96% and reduced the annual CO2 emissions by 8%. However, the payback period was more than 17 years. These results provide guidelines for the retrofit of district heating systems, where data centres’ waste heat is available. © 2020 The Author(s)
英文关键词	Borehole thermal energy storage; CO2 emissions; Energy bill; Mismatch problem; Peak load; Water tank
scopus关键词	Boreholes; Carbon dioxide; Digital storage; Emission control; Heat storage; Heating equipment; Investments; Thermal energy; Waste heat; Waste heat utilization; Water tanks; Annual energy costs; Borehole thermal energy storage; District heating system; Environmental analysis; Environmental indicators; Operation cost; Payback periods; Storage efficiency; District heating
来源期刊	Energy
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177215
作者单位	Department of Energy and Process Technology, Norwegian University of Science and Technology (NTNU), Kolbjørn Hejes Vei 1 B, Trondheim, 7491, Norway; Building Technology and Urban Systems Division, Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, CA 94720, United States
推荐引用方式 GB/T 7714	Li H.,Hou J.,Hong T.,et al. Energy; economic; and environmental analysis of integration of thermal energy storage into district heating systems using waste heat from data centres[J],2021,219.
APA	Li H.,Hou J.,Hong T.,Ding Y.,&Nord N..(2021).Energy; economic; and environmental analysis of integration of thermal energy storage into district heating systems using waste heat from data centres.Energy,219.
MLA	Li H.,et al."Energy; economic; and environmental analysis of integration of thermal energy storage into district heating systems using waste heat from data centres".Energy 219(2021).