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Energy Consumption and Energy Saving Analysis of Air-Conditioning Systems of Data Centers in Typical Cities in China

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  • Tiezhu Sun

    (Hualan Design & Consulting Group, Nanning 530011, China
    School of Mechano-Electronic Engineering, Guilin University of Electronic Technology, Guilin 541004, China
    School of Urban Planning and Municipal Engineering, Xi’an Polytechnic University, Xi’an 710660, China)

  • Xiaojun Huang

    (Hualan Design & Consulting Group, Nanning 530011, China)

  • Caihang Liang

    (School of Mechano-Electronic Engineering, Guilin University of Electronic Technology, Guilin 541004, China)

  • Riming Liu

    (Hualan Design & Consulting Group, Nanning 530011, China)

  • Yongcheng Yan

    (School of Urban Planning and Municipal Engineering, Xi’an Polytechnic University, Xi’an 710660, China)

Abstract

The energy consumption status and energy saving potential of the air-conditioning systems of data centers in seven typical cities in China (Xinjiang, Beijing, Jinan, Shanghai, Nanning, Guilin, and Haikou), representing diverse climate regions, were studied. The power usage effectiveness (PUE) and cooling load factor (CLF) were taken as the evaluation indicators. First, the energy consumption situations of the existing air-conditioning systems were analyzed using an internship survey. Second, the meteorological data throughout the year for the seven cities were statistically analyzed. Then, two energy saving renovation schemes were proposed. The operating hours under different operating modes in the seven cities were calculated, and the PUE and energy saving potential of the two energy saving schemes were evaluated by taking the production of 15 °C chilled water as an example. This study provides an overall picture of the energy utilization status in the current Chinese data center market and provides solutions for improving the design of air-conditioning systems, with energy saving benefits.

Suggested Citation

  • Tiezhu Sun & Xiaojun Huang & Caihang Liang & Riming Liu & Yongcheng Yan, 2023. "Energy Consumption and Energy Saving Analysis of Air-Conditioning Systems of Data Centers in Typical Cities in China," Sustainability, MDPI, vol. 15(10), pages 1-15, May.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:10:p:7826-:d:1143682
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    References listed on IDEAS

    as
    1. Borkowski, Mateusz & Piłat, Adam Krzysztof, 2022. "Customized data center cooling system operating at significant outdoor temperature fluctuations," Applied Energy, Elsevier, vol. 306(PB).
    2. Kandasamy, Ranjith & Ho, Jin Yao & Liu, Pengfei & Wong, Teck Neng & Toh, Kok Chuan & Chua, Sunshine Jr, 2022. "Two-phase spray cooling for high ambient temperature data centers: Evaluation of system performance," Applied Energy, Elsevier, vol. 305(C).
    3. Sijun Xu & Hua Zhang & Zilong Wang, 2023. "Thermal Management and Energy Consumption in Air, Liquid, and Free Cooling Systems for Data Centers: A Review," Energies, MDPI, vol. 16(3), pages 1-25, January.
    Full references (including those not matched with items on IDEAS)

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