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Temperature Distribution and Equipment Layout in a Deep Chamber: A Case Study of a Coal Mine Substation

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Listed:
  • Kaiwen Hu

    (School of Architecture, South China University of Technology, Guangzhou 510641, China
    State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510641, China)

  • Jian Zheng

    (School of Architecture, South China University of Technology, Guangzhou 510641, China
    State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510641, China)

  • Hai Wu

    (Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan University of Science and Technology, Xiangtan 411201, China
    School of Resources, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China)

  • Qian Jia

    (Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan University of Science and Technology, Xiangtan 411201, China
    School of Resources, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China)

Abstract

With the gradual depletion of shallow resources, the process of resource exploitation is being transferred to greater depths. The temperature of the surrounding rock increases gradually in the process of deep mining, and the temperature of the underground substation chambers often exceeds the normal working temperature in summer. In this paper, the equipment layout and ventilation conditions of the deep substation chamber of the Jiangxi Qujiang Mining Company were selected as the research subjects, and numerical simulation software was used to study the temperature distribution within the chamber under different conditions by changing the combinations of the wind velocity and air temperature of the inlet air of the chamber. The study showed that, under the conditions of the current equipment layout and air door size, the equipment temperature was prone to being too high in the summer. Therefore, the layout of the equipment was optimized based on the simulation results. The transformer equipment was changed from the original serial mode to the juxtaposed mode, and the size of the air door was increased, which effectively reduced the disturbance of the air flow and the length of the air flow path in the chamber. This meant that the high temperature area of the chamber was at the end of the chamber, which efficiently reduced the area of the high temperature zone and ensured that the equipment was in a lower temperature environment. This method can be used as a reference for temperature distribution, layout, and temperature control measures within buildings.

Suggested Citation

  • Kaiwen Hu & Jian Zheng & Hai Wu & Qian Jia, 2022. "Temperature Distribution and Equipment Layout in a Deep Chamber: A Case Study of a Coal Mine Substation," Sustainability, MDPI, vol. 14(7), pages 1-12, March.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:7:p:3852-:d:779120
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    References listed on IDEAS

    as
    1. Hao Wang & Qianyu Zhou, 2020. "Finite Element Analysis of Surrounding Rock with a Thermal Insulation Layer in a Deep Mine," Mathematical Problems in Engineering, Hindawi, vol. 2020, pages 1-11, September.
    2. Du, Yan & Gai, Wen-mei & Jin, Long-zhe & Sheng, Wang, 2017. "Thermal comfort model analysis and optimization performance evaluation of a multifunctional ice storage air conditioning system in a confined mine refuge chamber," Energy, Elsevier, vol. 141(C), pages 964-974.
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