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Simulation Experiment Research of Mine Roadway Simulating Test Device with Adjustable Wind Velocity and Temperature and Humidity

Author

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  • Lindong Liu

    (School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China
    Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mine, Beijing 100083, China
    NHC Key Laboratory for Engineering Control of Dust Hazard, Beijing 100083, China)

  • Cuifeng Du

    (School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China
    Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mine, Beijing 100083, China
    NHC Key Laboratory for Engineering Control of Dust Hazard, Beijing 100083, China)

  • Yuan Wang

    (School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China
    Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mine, Beijing 100083, China
    NHC Key Laboratory for Engineering Control of Dust Hazard, Beijing 100083, China)

  • Jianwu Chen

    (Institute of Occupational Health, China Academy of Safety Science and Technology, Beijing 100012, China)

  • Bin Yang

    (School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China
    Institute of Occupational Health, China Academy of Safety Science and Technology, Beijing 100012, China)

  • Weibo Jin

    (School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China
    Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mine, Beijing 100083, China
    NHC Key Laboratory for Engineering Control of Dust Hazard, Beijing 100083, China)

Abstract

The design and development process of wind velocity sensors for mining has been a challenging task due to the complexity of a large number of field tests. To resolve this problem, this study aimed to provide a comprehensive test device for the design and development of high-precision wind velocities sensor for mining. Through a combination of experiments and computational fluid dynamics (CFD), a device that can simulate the mine roadway environment was developed. The device can control the temperature, humidity, and wind velocity parameters to fully replicate the mine roadway environment. It gives designers and developers of high-precision wind velocity sensors for mining a rational and scientific testing environment. In order to quantitatively define the uniformity of air flow in the mine highway section, the research introduced the non-uniformity determination method. The approach was expanded to assess the cross-sectional uniformity of temperature and humidity. The wind velocity within the machine can increase to 8.5 m/s by selecting the right kind of fan. The minimum wind velocity non-uniformity at this moment is 2.30%. The device’s internal temperature can be raised to 38.23 °C and its humidity level can be increased to 95.09% by carefully crafting the rectifier orifice plate’s structure. At this time, the lowest temperature non-uniformity is 2.22%, and the lowest humidity non-uniformity is 2.40%. The device’s average wind velocity is 4.37 m/s, its average temperature is 37.7 °C, as well as its average humidity is 95%, per the emulate results. The device’s non-uniformity in wind velocity, temperature, and humidity is 2.89%, 1.34%, and 2.23%, respectively. It is capable of simulating the mine roadway environment in its entirety.

Suggested Citation

  • Lindong Liu & Cuifeng Du & Yuan Wang & Jianwu Chen & Bin Yang & Weibo Jin, 2023. "Simulation Experiment Research of Mine Roadway Simulating Test Device with Adjustable Wind Velocity and Temperature and Humidity," IJERPH, MDPI, vol. 20(5), pages 1-11, February.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:5:p:4057-:d:1079163
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    References listed on IDEAS

    as
    1. Jianwu Chen & Longzhe Jin & Bin Yang & Zhenfang Chen & Guoliang Zhang, 2022. "Influence of the Internal Structure Type of a Large-Area Lower Exhaust Workbench on Its Surface Air Distribution," IJERPH, MDPI, vol. 19(18), pages 1-14, September.
    2. Jakub Janus & Jerzy Krawczyk, 2021. "Measurement and Simulation of Flow in a Section of a Mine Gallery," Energies, MDPI, vol. 14(16), pages 1-15, August.
    3. Xiang Wu & Lindong Liu & Xiaowei Luo & Jianwu Chen & Jingwen Dai, 2018. "Study on Flow Field Characteristics of the 90° Rectangular Elbow in the Exhaust Hood of a Uniform Push–Pull Ventilation Device," IJERPH, MDPI, vol. 15(12), pages 1-12, December.
    4. Jianwu Chen & Longzhe Jin & Zhenfang Chen & Bin Yang & Yanqiu Sun & Shulin Zhou, 2020. "Center-Line Velocity Change Regime in a Parallel-Flow Square Exhaust Hood," IJERPH, MDPI, vol. 17(12), pages 1-11, June.
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