张英博，黎航欣，王盛卫
2023年10月18日，研究团队在Cell子刊《Cell Reports Physical Science》发表了题为“The global energy impact of raising the space temperature for high-temperature data centres” 的研究论文。论文链接为https://www.cell.com/cell-reports-physical-science/fulltext/S2666-3864(23)00444-7
《Cell Reports Physical Science》是全球著名Cell出版社旗下新晋高水平高影响力的综合期刊，旨在发表物理、化学、能源科学、材料科学以及交叉学科领域中的重大研究进展。
摘要：
Ever-increasing energy consumption of data centres is a growing global concern. To tackle this problem, high-temperature data centre is proposed as a fundamental solution. It adopts a different cooling mechanism and makes ‘chiller-free’ data centres possible, facilitating the transition from chiller-based cooling to completely-free cooling in data centres. Here we report the global energy impacts of adopting high-temperature data centres and critically analyse the trade-off between cooling-energy savings and server power rise using the worldwide weather data and server performance data. Quantitative guidance and targets are established for developing ‘ideal’ and ‘recommendable’ servers, considering the server performance associated with the thermal environment. When raising the space temperature to 41°C (namely, the 'global free-cooling temperature'),nearly all the land area can achieve 100% free cooling year-round globally. Operating at this space temperature, up to 56% cooling-energy savings could be achieved compared with operating at a current typical space temperature of 22°C.
Data center
Free cooling
Energy saving
Global impact
Server development
主要论文绘图：
Figure 4. Global maps of annual free-cooling ratio at different space temperatures
(A) At a baseline space temperature of 22°C. (B) at 27°C (upper limit of current recommendation). (C) at 32°C (upper limit of Class A1). (D) at 35°C (upper limit of Class A2). (E) at 40°C (upper limit of Class A3). (F) at 45°C (upper limit of Class A4).
Figure 5. Global maps of cooling-energy savings with reference to baseline space temperature 22°C
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