Building fire smoke control strategies simulation using fire and evacuation information
Building fire smoke control strategies simulation using fire and evacuation information
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发表时间:
2010
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通讯作者:
Chen Tao
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作者:
Chen Tao
During high-rise building fires, the fire must be controlled long enough to provide sufficient time for occupant evacuation, if heating, ventilating, and air conditioning (HVAC) systems and controllable door operations can be used to slow smoke propagation on the fire floor. A smoke control strategy utilizing the HVAC system and door operations was analyzed for various fire locations and building occupancy. The fire dynamic simulator (FDS) was utilized to simulate the smoke propagation, with an in-house fire evacuation (CFE) model used to simulate evacuation for different operating scenarios. The smoke propagation for various HVAC strategies and door operations in two typical buildings were evaluated with the results showing that the control strategies can effectively limit smoke propagation: reduce smoke speed by about 15%, reduce smoke temperature by about 25%, and reduce toxic and harmful gas concentrations by about 37%, which should improve occupant evacuation.