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A Study on the Energy Reduction Measures of Data Centers through Chilled Water Temperature Control and Water-Side Economizer

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  • Yu-Jin Kim

    (Department of Architectural Engineering, Graduate School, Gyeongsang National University, Jinju 52828, Korea)

  • Ju-Wan Ha

    (Department of Architectural Engineering, Graduate School, Gyeongsang National University, Jinju 52828, Korea)

  • Kyung-Soon Park

    (Architectural Engineering Major, Division of Urban, Architecture and Civil Engineering, Dong-Eui University, Busan 47340, Korea)

  • Young-Hak Song

    (Department of Architectural Engineering, ERI, Gyeongsang National University, Jinju 52828, Korea)

Abstract

The degree of integration of IT devices and consumption of cooling energy are consistently increasing owing to developments in the data center industry. Hence, to ensure the smooth operation and fault prevention of IT devices, the energy consumption of cooling systems has increased, leading to active research on improvements in cooling system performance for reducing energy consumption. This study examines the reduction in cooling energy consumption using a simulation by applying chilled water control and a water-side economizer (WSE) system to enhance the cooling system efficiency. The simulation results showed that the energy consumption was reduced by 1.8% when the chilled water temperature was set to 11 °C in a conventional system and by up to 19.6% when WSE was also applied. Furthermore, when the changes in chilled water temperature were applied for efficient operation of WSE, the energy consumption was reduced by up to 30.1% compared to that in conventional energy systems.

Suggested Citation

  • Yu-Jin Kim & Ju-Wan Ha & Kyung-Soon Park & Young-Hak Song, 2021. "A Study on the Energy Reduction Measures of Data Centers through Chilled Water Temperature Control and Water-Side Economizer," Energies, MDPI, vol. 14(12), pages 1-14, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:12:p:3575-:d:575734
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    References listed on IDEAS

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    1. Ju-wan Ha & Soolyeon Cho & Hwan-yong Kim & Young-hak Song, 2020. "Annual Energy Consumption Cut-Off with Cooling System Design Parameter Changes in Large Office Buildings," Energies, MDPI, vol. 13(8), pages 1-16, April.
    2. Rong, Huigui & Zhang, Haomin & Xiao, Sheng & Li, Canbing & Hu, Chunhua, 2016. "Optimizing energy consumption for data centers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 58(C), pages 674-691.
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