Estimations of Passenger Evacuation According to Ventilation Modes for a Fire in an Underground Station

초록

The numerical predictions of passenger evacuation event under fire train stopping at underground station are performed. Three different smoke-control ventilation modes are considered. Fire heat and smoke behavior is in th underground station is estimated by using FDS(Fire dynamic simulator)[1]. Distributions of heat, carbon monoxide and visible range are compared above the platform. The numerical results show that air supply fan operation causes the smoke disturbance and a rapid spread of the smoke on the platform. The results also show that the switch ventilation mode with the platform and tunnel ventilation systems are better smoke rejection efficiency than the platform ventilation system only. The numerical