Study of the Fire Behavior of Multilayer Cables in a Mine Tunnel

Zhiqiang Tang, Ke Gao, Yafei Shan, Chengyao Zhu, Zeyi Liu and Zimeng Liu
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Zhiqiang Tang: College of Safety Science and Engineering, Liaoning Technical University, Huludao 125105, China
Ke Gao: College of Safety Science and Engineering, Liaoning Technical University, Huludao 125105, China
Yafei Shan: College of Safety Science and Engineering, Liaoning Technical University, Huludao 125105, China
Chengyao Zhu: College of Safety Science and Engineering, Liaoning Technical University, Huludao 125105, China
Zeyi Liu: College of Safety Science and Engineering, Liaoning Technical University, Huludao 125105, China
Zimeng Liu: College of Safety Science and Engineering, Liaoning Technical University, Huludao 125105, China

Energies, 2022, vol. 15, issue 6, 1-19

Abstract: Fires caused by cables occur frequently in mines, which endanger the safety of workers. To explore the characteristics of a multilayer cable fire in a mine tunnel, multilayer cable fire simulations were carried out using the Fire Dynamics Simulator (FDS). The influence of cable tray spacing, ignition position, and tunnel ventilation speed on the characteristics of the fire were studied. The results showed that these factors change the amount of contact between the cable and air, the heat accumulation, and the heat transfer by the flame interaction between the cables. It was also noted that increasing the spacing or wind speed both made the peak of heat release rate (PHRR) initially increase and then decrease. The influence of wind speed on the cable burnout rate in the upstream and downstream sides of the fire source was not consistent, and the wind speed had a sensitive effect on the cable burn out rate in the upstream side of the fire source. The higher the ignition position was, the longer the arrival time of PHRR was and the slower the fire developed. There was a higher burn velocity close to the ceiling. The cable hooks obstructed the cable fire. This study provides a theoretical basis for cable fire prevention and control in mine tunnels.

Keywords: multilayer cable fire; tunnel fire; numerical simulation; heat release rate; mine (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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