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- Title
Experimental Study on the Influence of Sealing and Ventilation on the Fire Characteristics Near the Wall of Utility Tunnel.
- Authors
Zhenpeng Bai; Yueyang Yu; Yang Zhang; Zihe Gao; Haowei Yao; Jin Zhang
- Abstract
In this paper, the temperature rise in the longitudinal direction, the heat release rate (HRR), the endless area temperature under the ceiling of the utility tunnel, and the root of HRR (oil and fuel type), cable type, number of cable layers and and cables per layer. The effects of airtightness, natural ventilation, and longitudinal ventilation on the fire characteristics of cable compartments were compared. The results showed that the effects of enclosed cable tunnels and natural ventilation on fire behavior near walls in cable tunnels were compared. Compared with the natural ventilation state, when placing RVVR type cables, the fire duration of the enclosed cable compartment was shorter, the ceiling temperature rise was greater. And the time that was necessary to increase the ceiling temperature to its maximum value was shorter. The HRR inside the enclosed cable compartment was very high and could almost reach its peak quickly. The contribution of this article is to reduce the social and economic costs of utility tunnels by preventing tunnel fires.
- Subjects
TUNNEL ventilation; NATURAL ventilation; HEAT release rates; VENTILATION; MINE ventilation; TUNNELS; FIREFIGHTING
- Publication
IAENG International Journal of Applied Mathematics, 2024, Vol 54, Issue 5, p866
- ISSN
1992-9978
- Publication type
Article