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Energy Efficiency Increase Achieved by Dedicated Rule-Based Control of Chillers Operating in the Data Center

Author

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  • Mateusz Borkowski

    (Department of Automatic Control and Robotics, AGH University of Science and Technology, Mickiewicza 30 Ave., 30-059 Krakow, Poland)

  • Adam Krzysztof Piłat

    (Department of Automatic Control and Robotics, AGH University of Science and Technology, Mickiewicza 30 Ave., 30-059 Krakow, Poland)

Abstract

Commercial solutions in the area of data center cooling available on the market are universal solutions that use dedicated control methods and are to able function properly in a wide range of working conditions. The functional limitations resulting in their application were our motivation for developing our own system architecture and a dedicated control algorithm. Historical data from an operating cooling system were analyzed. On that basis, a rule-based controller was developed, the purpose of which is to correctly switch between operating modes. The time constants of the automation actuators and the dynamics of the changes that occur in the cooling process were identified. The control strategy was experimentally validated throughout 2017. The efficacy of the second solution and the effectiveness of the control algorithm throughout the calendar year were demonstrated. Our solution allows individual control of each element of the cooling system. This enabled the extension of the operation time in the free-cooling mode by 2064 h throughout the year, a 69% increase in the COP coefficient of the cooling system and a reduction in electricity consumption by 206.9 MWh due to longer operation in the freecooling mode.

Suggested Citation

  • Mateusz Borkowski & Adam Krzysztof Piłat, 2022. "Energy Efficiency Increase Achieved by Dedicated Rule-Based Control of Chillers Operating in the Data Center," Energies, MDPI, vol. 15(7), pages 1-25, March.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:7:p:2419-:d:779464
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    References listed on IDEAS

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