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Research on Operation Data Mining and Analysis of VRF Air-Conditioning Systems Based on ARM and MLR Methods to Enhance Building Sustainability

Author

Listed:
  • Jiayin Zhu

    (School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)

  • Xin Liu

    (School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)

  • Zihan Xu

    (School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)

  • Xingtao Zhang

    (School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)

  • Congcong Du

    (School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)

  • Yabin Guo

    (School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)

  • Ruixin Li

    (School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)

Abstract

With the increasing intelligence of modern air-conditioning systems, the difficulty of acquiring data from air-conditioning systems has been significantly reduced. However, analyzing the massive amounts of data collected and obtaining more valuable information still remains challenging, especially considering the internal relationships behind the data. The purpose of this study was to conduct operational experiments on VRF systems under different indoor set temperatures, indoor set air speeds, and terminal load rates. Then, the patterns of various operating parameters and energy consumption of VRF systems during winter operation were analyzed based on unsupervised methods. Three machine learning methods were primarily employed in this study, including correlation analysis, data regression analysis, and association rule analysis. Finally, a regression model was constructed for energy consumption based on eight typical characteristic parameters. The experimental results showed that the system was stable to a certain degree at different wind speeds. Among the characteristic parameters, fixed frequency 1 exhaust temperature, compressor frequency, and other parameters have a significant positive effect on energy consumption, while fixed frequency 1 shell top oil temperature, inlet and outlet pipe temperature difference, and other parameters have a negative effect. The research results provide a reference for air conditioning system data mining and building sustainability.

Suggested Citation

  • Jiayin Zhu & Xin Liu & Zihan Xu & Xingtao Zhang & Congcong Du & Yabin Guo & Ruixin Li, 2025. "Research on Operation Data Mining and Analysis of VRF Air-Conditioning Systems Based on ARM and MLR Methods to Enhance Building Sustainability," Sustainability, MDPI, vol. 17(20), pages 1-31, October.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:20:p:8974-:d:1767984
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    References listed on IDEAS

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