Energy performance analysis of multi-chiller cooling systems for data centers concerning progressive loading throughout the lifecycle under typical climates

IF 6.1 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Building Simulation Pub Date : 2024-08-29 DOI:10.1007/s12273-024-1167-9

Yingbo Zhang, Hangxin Li, Shengwei Wang

{"title":"Energy performance analysis of multi-chiller cooling systems for data centers concerning progressive loading throughout the lifecycle under typical climates","authors":"Yingbo Zhang, Hangxin Li, Shengwei Wang","doi":"10.1007/s12273-024-1167-9","DOIUrl":null,"url":null,"abstract":"<p>The increasing demand for cooling energy in data centers has become a global concern. Existing studies lack a comprehensive analysis of the energy performance of widely used multi-chiller cooling systems in air-cooled data centers throughout their lifecycle, especially concerning progressive loading. To bridge this gap, this study conducts a thorough assessment of the energy performance of multi-chiller cooling systems throughout the entire lifecycle. Additionally, the impact of climate conditions on the energy efficiency of the cooling systems is analyzed, considering design variations for typical climates. Multi-chiller cooling system models are developed using the test data of cooling equipment and typical control algorithms. The energy performance of the cooling system is thoroughly analyzed under full-range cooling loads and climate conditions. Results show that free cooling time could differ up to 1442 hours at different part load ratios in the same location. Furthermore, the cooling system’s coefficient of performance (COP) varies significantly, by up to 6, at different part load ratios, corresponding to a difference in power usage effectiveness (PUE) up to 0.14. Notably, the average cooling system COP throughout the lifecycle loading is found to be only 11.7, 2.9 lower than the design system COP.</p>","PeriodicalId":49226,"journal":{"name":"Building Simulation","volume":"28 1","pages":""},"PeriodicalIF":6.1000,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Building Simulation","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s12273-024-1167-9","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

The increasing demand for cooling energy in data centers has become a global concern. Existing studies lack a comprehensive analysis of the energy performance of widely used multi-chiller cooling systems in air-cooled data centers throughout their lifecycle, especially concerning progressive loading. To bridge this gap, this study conducts a thorough assessment of the energy performance of multi-chiller cooling systems throughout the entire lifecycle. Additionally, the impact of climate conditions on the energy efficiency of the cooling systems is analyzed, considering design variations for typical climates. Multi-chiller cooling system models are developed using the test data of cooling equipment and typical control algorithms. The energy performance of the cooling system is thoroughly analyzed under full-range cooling loads and climate conditions. Results show that free cooling time could differ up to 1442 hours at different part load ratios in the same location. Furthermore, the cooling system’s coefficient of performance (COP) varies significantly, by up to 6, at different part load ratios, corresponding to a difference in power usage effectiveness (PUE) up to 0.14. Notably, the average cooling system COP throughout the lifecycle loading is found to be only 11.7, 2.9 lower than the design system COP.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

数据中心多冷却器冷却系统的能效分析，涉及典型气候条件下整个生命周期的渐进式负载

数据中心对冷却能源的需求日益增长，这已成为全球关注的问题。现有研究缺乏对风冷数据中心中广泛使用的多冷却器冷却系统在其整个生命周期内的能源性能的全面分析，尤其是在渐进式负载方面。为了弥补这一不足，本研究对多冷却器冷却系统在整个生命周期内的能源性能进行了全面评估。此外，考虑到典型气候条件下的设计变化，还分析了气候条件对冷却系统能效的影响。利用冷却设备的测试数据和典型的控制算法开发了多冷却器冷却系统模型。在各种冷却负荷和气候条件下，对冷却系统的能效进行了全面分析。结果表明，在同一地点的不同部分负荷比下，自由冷却时间最多可相差 1442 小时。此外，在不同的部分负荷比下，冷却系统的性能系数（COP）也有显著差异，最多可达 6，相当于功率使用效率（PUE）最多相差 0.14。值得注意的是，在整个生命周期内，冷却系统的平均 COP 仅为 11.7，比设计系统 COP 低 2.9。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Building Simulation THERMODYNAMICS-CONSTRUCTION & BUILDING TECHNOLOGY

CiteScore

10.20

自引率

16.40%

发文量

审稿时长

>12 weeks

期刊介绍： Building Simulation: An International Journal publishes original, high quality, peer-reviewed research papers and review articles dealing with modeling and simulation of buildings including their systems. The goal is to promote the field of building science and technology to such a level that modeling will eventually be used in every aspect of building construction as a routine instead of an exception. Of particular interest are papers that reflect recent developments and applications of modeling tools and their impact on advances of building science and technology.