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

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

Energy, 2025, vol. 315, issue C

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.

Keywords: Combustion characteristics; Flame evolution; Fuel energy; Double-layer cable fire; Utility tunnel (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:315:y:2025:i:c:s0360544224041021

DOI: 10.1016/j.energy.2024.134324

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