Numerical Simulation of Distribution of Discharged Gas Fire Extinguishing Agent in High Velocity Flow Field

Abstract:

This paper studied the concentration distribution of gas extinguishing agent numerically in high velocity flow field. Civil aircraft power plant compartment has been a difficult area for its high velocity flow field formed after fire happens. Focusing on this issue, certain results, such as mass flow rate of agent gas, total mass of agent and extinguishing efficiency were presented. A typical apparatus of fire extinguishing system was set up, and its fire-fighting efficiency was evaluated. Critical ratio of mass flow rate and flow velocity, gas discharge time and locations of gas sample tubes were recommended. The results and data can provide a practical way in fire extinguishing system evaluation in civil aircraft power plant compartment.

• Periodical: Advanced Materials Research (Volumes 718-720)
• Pages: 1786-1791
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.718-720.1786
• Online since: July 2013
• Authors: Xing Ming Ma, Lan Ming Zhao, Yu Nong Li, Di Di Li, Jia Jia Fu, Yu Chong Han, Jun Qin
• Keywords: Civil Aircraft, Distribution, FDS, Gas Extinguishing Agent, Numerical Simulation

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DOI: 10.6028/nist.sp.890v2

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