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Development of an Efficient Cooling Strategy in the Heading Face of Underground Mines

Author

Listed:
  • Xian Li

    (School of Civil Engineering and Architecture, Linyi University, Linyi 276000, China)

  • Houli Fu

    (School of Civil Engineering and Architecture, Linyi University, Linyi 276000, China)

Abstract

Heat damage in deep mines is severe and can lead to adverse health effects. The existing refrigeration schemes for the heading face in excavation roadways aim to cool the whole cooling region. However, the ratio of the area occupied by workers to that of the cooling region is quite small. A great quantity of energy for refrigeration is doomed to waste. In this study, a new cooling strategy for building a non-uniform environment in the heading face was developed. A certain quantity of well-designed tracking air coolers were distributed in the excavation roadway near the heading face. The air cooler tracked the constantly moving workers and blew cold air to them. Economic analysis based on estimation of the cooling load for this cooling strategy was conducted. The airflow in the excavation roadway was numerically simulated to estimate the cooling effect. An average energy saving of approximately 30% could be realized. The thermal environment for the workers whether near the heading face or in the roadway improved. This cooling strategy should be considered in all of mine cooling.

Suggested Citation

  • Xian Li & Houli Fu, 2020. "Development of an Efficient Cooling Strategy in the Heading Face of Underground Mines," Energies, MDPI, vol. 13(5), pages 1-11, March.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:5:p:1116-:d:327381
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    References listed on IDEAS

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    1. Xiaoyan Zhang & Yuhang Jia & Mei Wang & Lang Liu, 2019. "Experimental Research on Heat Transfer and Strength Analysis of Backfill with Ice Grains in Deep Mines," Sustainability, MDPI, vol. 11(9), pages 1-14, April.
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    Cited by:

    1. Junjian Wang & Zijun Li & Gang Li & Yu Xu, 2023. "Heat Hazard Control in High-Temperature Tunnels: Experimental Study of Coupled Cooling with Ventilation and Partial Insulation for Synergistic Geothermal Extraction," IJERPH, MDPI, vol. 20(3), pages 1-22, January.
    2. Jielin Li & Xiaoli Yu & Chonghong Huang & Keping Zhou, 2022. "Research on the Mobile Refrigeration System at a High Temperature Working Face of an Underground Mine," Energies, MDPI, vol. 15(11), pages 1-15, May.
    3. Zijun Li & Huasen Liu & Yu Xu & Rongrong Li & Mintao Jia & Mengsheng Zhang, 2021. "Numerical Analysis on the Thermal Performance in an Excavating Roadway with Auxiliary Ventilation System," IJERPH, MDPI, vol. 18(3), pages 1-17, January.

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