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A visual defrosting control method for air source heat pump system based on machine vision

Author

Listed:
  • Zhao, Han
  • Liu, Zihan
  • Sang, Yufeng
  • Chang, Junzhi
  • Zheng, Xuejing
  • Jurasz, Jakub
  • Zheng, Wandong

Abstract

Frosting on the coil of the air source heat pump (ASHP) significantly affects its performance. An accurate defrosting control method is essential for the ASHP unit. Here, a novel visual defrosting control method based on machine vision is proposed. The frosting degree of the unit is accurately obtained by frosting image analysis with digital image processing to achieve on-demand defrosting. Fractal dimension, frosting degree coefficient, and single-circuit frosting evenness value are introduced to evaluate the frosting degree of coil images. The image acquisition point is determined with confusion matrix. Based on this, the logical framework of the proposed method is constructed, in which the defrosting starting and termination conditions are set as the moment when the frosting degree coefficient is equal to 0.9 and 0, respectively. A multi-variable model of fractal dimension is fitted, which improves the generalization of the proposed method. Finally, comparative experiments are conducted between the proposed method and the traditional temperature-time (T-T) method in typical cases. The results indicate that the COP and total heating capacity increase by 11.8 %, 10.6 % and 7.4 %, 6.6 %, respectively, and the defrosting frequency is reduced by 75 %, which demonstrates dominant advantages of the proposed method in accuracy, energy-saving, and indoor thermal comfort management.

Suggested Citation

  • Zhao, Han & Liu, Zihan & Sang, Yufeng & Chang, Junzhi & Zheng, Xuejing & Jurasz, Jakub & Zheng, Wandong, 2024. "A visual defrosting control method for air source heat pump system based on machine vision," Energy, Elsevier, vol. 302(C).
    • Handle: RePEc:eee:energy:v:302:y:2024:i:c:s0360544224015512
    DOI: 10.1016/j.energy.2024.131778
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    References listed on IDEAS

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    1. Sheng, Wei & Liu, Pengpeng & Dang, Chaobin & Liu, Guixin, 2017. "Review of restraint frost method on cold surface," Renewable and Sustainable Energy Reviews, Elsevier, vol. 79(C), pages 806-813.
    2. Hu, Wenju & Song, Mengjie & Jiang, Yiqiang & Yao, Yang & Gao, Yan, 2019. "A modeling study on the heat storage and release characteristics of a phase change material based double-spiral coiled heat exchanger in an air source heat pump for defrosting," Applied Energy, Elsevier, vol. 236(C), pages 877-892.
    3. Chen, Siliang & Chen, Kang & Zhu, Xu & Jin, Xinqiao & Du, Zhimin, 2022. "Deep learning-based image recognition method for on-demand defrosting control to save energy in commercial energy systems," Applied Energy, Elsevier, vol. 324(C).
    4. Jang, Ji Young & Bae, Heung Hee & Lee, Seung Jun & Ha, Man Yeong, 2013. "Continuous heating of an air-source heat pump during defrosting and improvement of energy efficiency," Applied Energy, Elsevier, vol. 110(C), pages 9-16.
    5. Wang, W. & Xiao, J. & Guo, Q.C. & Lu, W.P. & Feng, Y.C., 2011. "Field test investigation of the characteristics for the air source heat pump under two typical mal-defrost phenomena," Applied Energy, Elsevier, vol. 88(12), pages 4470-4480.
    6. Li, Zhaoyang & Wang, Wei & Sun, Yuying & Wang, Shiquan & Deng, Shiming & Lin, Yao, 2021. "Applying image recognition to frost built-up detection in air source heat pumps," Energy, Elsevier, vol. 233(C).
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