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Technologies for Heat Hazard Governance and Thermal Energy Recovery in Deep Mines

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  • Yujin Ran

    (Guizhou Shallow Geothermal Energy Development Co., Ltd., Zunyi 563006, China
    114 Branch, Bureau of Geology and Mineral Exploration and Development Guizhou Province, Zunyi 563006, China)

  • Jia Peng

    (Guizhou Shallow Geothermal Energy Development Co., Ltd., Zunyi 563006, China
    114 Branch, Bureau of Geology and Mineral Exploration and Development Guizhou Province, Zunyi 563006, China)

  • Xiaolin Tian

    (Guizhou Shallow Geothermal Energy Development Co., Ltd., Zunyi 563006, China
    114 Branch, Bureau of Geology and Mineral Exploration and Development Guizhou Province, Zunyi 563006, China)

  • Dengyun Luo

    (Guizhou Shallow Geothermal Energy Development Co., Ltd., Zunyi 563006, China
    114 Branch, Bureau of Geology and Mineral Exploration and Development Guizhou Province, Zunyi 563006, China)

  • Jie Zhao

    (College of Mines, Guizhou University, North Wing Rm 428, Guiyang 550025, China)

  • Peng Pei

    (College of Mines, Guizhou University, North Wing Rm 428, Guiyang 550025, China)

Abstract

As the depth of mines continues to increase, the problems of high temperature and potential heat damage become more prominent. In this study, the characteristics of natural and industrial heat sources in mines were reviewed, and then mainstream heat hazard governance technologies and corresponding utilization methods were discussed and compared. The first category of technologies comprises the optimization of ventilation systems, the insulation of roc heat, and artificial refrigeration. These cooling approaches are limited because the heat resources cannot be recovered. The second category is the utilization of waste industrial heat in mines, including the use of waste heat from the air compressors, drainage water, and foul airflow, but the current applications of these approaches have limited effectiveness in cooling the underground space. The third category is the application of geo-structures to recover natural heat in mines. Based on the principles of the chiller/heat pump cycle and the characteristics of heat sources and sinks in mines, the potential and constraints of each technology were discussed and summarized. This study provides a scientific reference for the selection of suitable heat governance and utilization technologies.

Suggested Citation

  • Yujin Ran & Jia Peng & Xiaolin Tian & Dengyun Luo & Jie Zhao & Peng Pei, 2024. "Technologies for Heat Hazard Governance and Thermal Energy Recovery in Deep Mines," Energies, MDPI, vol. 17(6), pages 1-18, March.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:6:p:1369-:d:1355843
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    References listed on IDEAS

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    1. Ghorbani, Yousef & Nwaila, Glen T. & Zhang, Steven E. & Bourdeau, Julie E. & Cánovas, Manuel & Arzua, Javier & Nikadat, Nooraddin, 2023. "Moving towards deep underground mineral resources: Drivers, challenges and potential solutions," Resources Policy, Elsevier, vol. 80(C).
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