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A Theoretical and Test Analysis of Heat and Humidity Transfer for Deeply Buried Underground Corridors with Different Shapes

Author

Listed:
  • Tong Ren

    (College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China)

  • Mengzhuo Li

    (College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China)

  • Long He

    (College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China)

  • De Wang

    (College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China)

  • Lingbo Kong

    (College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China)

Abstract

Moisture generation in the ventilation projects of deeply buried underground corridors affects the underground building environment and personnel health. In order to master the heat and humidity transfer law of underground corridors, this paper establishes a mathematical model by theoretical analysis, and the application of the theoretical model in engineering calculation is verified by a field test. It is found that the ventilation efficiency and heat and humidity transfer effect are related to corridor shape. The results show that under the same cross-sectional area, the average temperature drop and humidity of a rectangular corridor are 0.25% and 0.3% higher than that of an arch corridor, and 0.8% and 0.9% higher than that of a circular corridor. Under the condition of constant section circumference, the average temperature drop and humidity of a rectangular corridor are 0.51% and 0.62% higher than that of an arch corridor, and 1.37% and 1.58% higher than that of a circular corridor. When the equivalent diameter is the same, there is almost no difference in the heat and humidity transfer effect of the three shaped corridors.

Suggested Citation

  • Tong Ren & Mengzhuo Li & Long He & De Wang & Lingbo Kong, 2025. "A Theoretical and Test Analysis of Heat and Humidity Transfer for Deeply Buried Underground Corridors with Different Shapes," Energies, MDPI, vol. 18(2), pages 1-24, January.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:2:p:234-:d:1561855
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    References listed on IDEAS

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    2. Wang, Tao & Ma, Mengru & Ren, Zhili & Yuan, Xiaoqing & Gao, Xiangkui & Xiao, Yimin, 2024. "Numerical analysis of heat and mass transfer in separated ventilation of deeply buried long air intake tunnels," Energy, Elsevier, vol. 304(C).
    3. Fredrik Skaug Fadnes & Mohsen Assadi, 2024. "Utilizing Wastewater Tunnels as Thermal Reservoirs for Heat Pumps in Smart Cities," Energies, MDPI, vol. 17(19), pages 1-35, September.
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