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Combustion characteristics and flame morphological evolution of double-layer cable fires in urban utility tunnels with various laying spacings

Author

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  • Xu, Desheng
  • Li, Yanfeng
  • Li, Junmei
  • Zhong, Hua
  • Li, Jiaxin
  • Huang, Youbo

Abstract

Utility tunnels serve as critical infrastructure for urban energy and electricity transport systems, housing multi-layered cable arrangements that pose significant fire hazards. This study investigates the effects of cable arrangement and layer spacing on the combustion parameters and flame evolution of double-layer cable fires, emphasising their implications for energy infrastructure safety. Using a reduced-scale utility tunnel model, we conducted fire experiments to measure the heat release rate (HRR), oxygen consumption, and fuel energy of cable combustion.

Suggested Citation

  • Xu, Desheng & Li, Yanfeng & Li, Junmei & Zhong, Hua & Li, Jiaxin & Huang, Youbo, 2025. "Combustion characteristics and flame morphological evolution of double-layer cable fires in urban utility tunnels with various laying spacings," Energy, Elsevier, vol. 315(C).
    • Handle: RePEc:eee:energy:v:315:y:2025:i:c:s0360544224041021
    DOI: 10.1016/j.energy.2024.134324
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