Abstract
The function of air jet smoke prevention system is blowing air from the lineal vent installed on either sides or single side of the wall to prevent the smoke spread from fire sites. The system has the advantages for using in the hospitals, nursing homes, or underground tunnels which have a large number of weaker evacuees that may cause trouble by fire door or smoke curtain and other smoke devices. The corridors are designed to connect emergency exit and stairs as an evacuate route in most buildings. Therefore, stopping the hot smoke from corridor to stairs becomes an important fire safety design. The corridors may have various widths in existing buildings. Thus, three different size (2 m, 4 m, and 6 m) corridor widths are examined experimentally in this study. Referring to the test data, the air jet smoke prevention system applied in 2 m and 4 m width corridors are able to create a smoke-free area during the fire tests. Under the design supply air volume, air jet smoke prevention system fails to protect the 6 m width corridor.
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