| Summary: | 碩士 === 國立交通大學 === 工學院產業安全與防災學程 === 101 === When a fire occurs in a structure, the burning smoke, heat, and hazardous gas will be discharged via the smoke control system out of the structure. This thesis aims to explore if it is applicable to use a smoke control system (smoking vent)established in a big structure, and set up an additional smoking vent, which is located 80cm below the ceiling, and sized 2% of the small structure in a small structure within the big structure to proceed smoke emission.
The research approach employs the numerical stimulation software, FDS (Fire Dynamics Stimulator), to install the stimulated situation, and examine how these hazardous factors generated by the fire (such as temperature, CO2, visibility and so forth), which hover 1.8 m high above the ground, will influence the evacuation. Besides, this thesis uses the laws of evacuation safety verification to review on the evacuation time of people in the structure and to see if they can evacuate safely within the evacuation time. If there are partitions in the small structure, can the same equipment meet the evacuation requests of the site?
It can be found via the stimulator that when a fire occurs in a space within the divided area, those hazardous factors caused by the fire, namely smoke, heat, poisonous gas, can be firstly emitted by the vent sitting 80cm below the ceiling into the mechanical smoke control system in the divided area, and then be effectively discharged out of the divided area. Meanwhile, no people will get hurt during the evacuation and can successfully escape from danger.
The results of this research shows that during the period of designing, if the designer can adopt the abovementioned design idea, unnecessary equipments of the smoke control system can be avoided, and a lower cost can be successfully achieved.
|
|---|
